Citation
Oil and gas activities in Florida, 1967 ( FGS: Information circular 71)

Material Information

Title:
Oil and gas activities in Florida, 1967 ( FGS: Information circular 71)
Series Title:
FGS: Information circular
Creator:
Babcock, Clarence
Florida -- Division of Geology
Florida -- Bureau of Geology
Place of Publication:
Tallahassee, Fla.
Publisher:
State of Florida, State Board of Conservation, Division of Geology
Publication Date:
Frequency:
Annual
Language:
English
Physical Description:
v. : ill., maps ; 23 cm.

Subjects

Subjects / Keywords:
Petroleum industry and trade -- Florida ( lcsh )
Oil wells -- Florida ( lcsh )
Gas wells -- Florida ( lcsh )
Collier County ( local )
Gulf of Mexico ( local )
Hendry County ( local )
Lake Trafford ( local )
City of Tallahassee ( local )
Greater Orlando ( local )
Geology ( jstor )
Counties ( jstor )
Drilling ( jstor )
Limestones ( jstor )
Cements ( jstor )

Notes

Dates or Sequential Designation:
1965-
General Note:
Issuing body varies.
General Note:
Editor: 1965-, Clarence Babcock.
Funding:
Information circular (Florida. Division of Geology) ;
General Note:
Series statement: 1965-1966: Information circular / State of Florida, State Board of Conservation, Division of Geology ; no. 54-55
General Note:
Series statement: 1967- Information circular State of Florida, Department of Natural Resources, Bureau of Geology ; no. 63, 65, 71, 80, etc.

Record Information

Source Institution:
University of Florida
Holding Location:
University of Florida
Rights Management:
The author dedicated the work to the public domain by waiving all of his or her rights to the work worldwide under copyright law and all related or neighboring legal rights he or she had in the work, to the extent allowable by law.
Resource Identifier:
35177268 ( OCLC )

Related Items

Preceded by:
Florida petroleum exploration, production, and prospects (1964)

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Full Text








STATE OF FLORIDA
DEPARTMENT OF NATURAL RESOURCES
Randolph Hodges, Executive Director



DIVISION OF INTERIOR RESOURCES
J.V. Sollohub, Director



BUREAU OF GEOLOGY
Robert O. Vernon,Chief


Information Circular No. 71



OIL AND GAS ACTIVITIES IN FLORIDA, 1969


By
Clarence Babcock



Prepared by
BUREAU OF GEOLOGY
DIVISION OF INTERIOR RESOURCES
FLORIDA DEPARTMENT OF NATURAL RESOURCES


TALLAHASSEE
1971









3-5-7.-C/

F6 o .7/




































Completed manuscript received
September 1, 1970
Printed by the
Florida Department of Natural Resources
Division of Interior Resources
Bureau of Geology
Tallahasseo








CONTENTS


Acknowledgements ......................
Production ............. ...... .........
Field descriptions and 1969 development drilling ...
Sunniland field ....... ............
Description .....................
Development drilling ...............
Sunoco-Felda field ....................
Description ....... ..............
Development drilling ...............
West Sunoco-Felda field ................


Description .........
Development drilling ...
Mobil's new field .........


Page
tooeeoee* V
. ..... .. .... ..... 1
.................... 1
. . . . . 1
.................... 1
. .... ........ ... 1

. ................... 4
.................... 8
.................... 8
.. ............... 8
.................... 8
ooo ~ oeee eeoo ~ et 8


Exploratory drilling ..... ..................................


Geophysical activity ................
Offshore ..................
Mainland ................
Land ........................
Water bottom leases ...........
Mainland ...................
Rules and regulations .............
Bibliography ......... .........
Appendices ....................


I. Well Data Sheets, 1969 .................. ........... .......
II. Bureau of Geology carbonate classification .......... ..........
III. Bureau of Geology well and locality designation system .............


............................ 14
............................ 14
.. ............ ............ 14
............................ 14
...... ..................... 14
... ................ ...... 20
. ......... ................. 20
................. .......... 21
......................... .. 23


ILLUSTRATIONS


Figure


Page


1 Florida petroleum exploration and production, 1969 .................. 2
2 Structure map on top of the Sunniland Limestone, Sunniland field, Collier
County ......................... ..... ** ........ .. 7
3 Structure map on top of the Sunniland Limestone marker, Sunoco-Felda and
West Sunoco-Felda fields, Hendry County and Collier County ............. 9
4 Stratigraphic Cross Section A-A', with lithology described from cores, West
Sunoco-Felda field, Hendry County .................. Facing Page 12
5 Stratigraphic Cross Section, with lithology described from cores, Lake Trafford
area, Lee County and Collier County ...................... Facing Page 12
6 Florida offshore geophysical permits, 1969 ......................... 16
7 Offshore Florida State Leases, December 31, 1969 .................... 19






ii


.. .. .. .. .. .. &. .. .. ..
.. .. .. .. .. .. .. .. .. ..
. & .. 0. .. .. .. .. .








TABLES

Table Page
1 Monthly and cumulative pumping production, 1967, 1968 and 1969 from
Florida's four oil fields ...................................... 3
2 Salt water production, specified years, from Florida's four oil fields ... ..... 4
3 Florida development drilling, 1969 .............. ................ 5
4 Florida exploratory drilling, 1969 .............................. 6
5 Florida offshore geophysical permits, 1969 ........................ 15
6 Florida mainland geophysical activity, 1969 ........................ 17
7 Recapitulation of Florida mainland geophysical activity, 1969, by regional areas
of the State ............. .................................. 18









ACKNOWLEDGEMENTS

The writer is indebted to personnel of the Bureau of Geology, Department of
Natural Resources, for stimulating discussions, review of manuscript, proof of
copy and preparation of illustrations.










OIL AND GAS ACTIVITIES IN FLORIDA, 1968


By
Clarence Babcock

PRODUCTION

The monthly and cumulative production for 1967, 1968 and 1969 from
Florida's four oil fields, all located in Collier County and Hendry County, figure
1, is presented in Table 1. All Florida wells are on pump. The 1969 production
from the Sunniland field was 36 percent greater than the 1968 production. This
increased oil production primarily reflects the use of submersible pumps in
recovery operations during 1969.
Table 2 shows the salt water production for Florida's four fields for specified
years. The figures for the Sunniland field indicate that the submersible pumps
which increased oil production in 1969 did not cause a significant increase in the
percentage of salt water production.

FIELD DESCRIPTIONS
AND 1969 DEVELOPMENT DRILLING

Florida's 1969 development drilling is summarized in table 3, which shows
that a combined total of 46,772 feet were drilled' in four wells in two established
fields. Also, a new field was discovered in 1969; the discovery well is listed in
table 4, which summarizes exploratory activity.
Each of Florida's fields, as well as the details of the drilling in fields as listed
in tables 3 and 4, will be discussed.

SUNNILAND FIELD

The Sunniland field, discovered in 1943 and operated by the Humble Oil and
Refining Company, is located in Collier County.
The structure is a northwest-southwest dome 2 miles wide and 4 1/2 miles
long, as shown in figure 2. There are 18 producing wells on this structure.
Production is from calcareous rock containing disoriented macrofossils
(rudistids) reached at a depth of about 11,500 feet. As shown on unpublished
cross-sections by Woodson R. Oglesby of the Bureau of Geology, productive
zones begin at the top of the Sunniland Limestone and extend to a point about
75 feet lower in the section. The lowermost of the five zones has a bottom water
drive.





BUREAU OF GEOLOGY


FLOMATON FIELD, Escambia Co.,Ala.
Discovered by the HUMBLE, No.1 Wessner.
Completed Oct. 15,1968 thru perforations
at 15,320'-15,360' in the Norphlet formation
with a calculated absolute open flow of 30
mm cfgpd with 1,563 bbls.of condensate. POLLARD FIELD, Escambia Co.,Ala.
Discovered Jan.1952, cumulative production
j* to Dec.31,1965, 9,348,378 bbls.
f ,SANT ----A- ,
ROSA


-ENSAW-LAKE FIELD,Baldwin
Ala. Discovered by Lee,etal. No.1
Smith well completed Nov.16,1965 in the Paluxy sand.
On the initial production tests thru perforations at
8,382-8,387 flowed 20 B.O.P. D.; gr., 160; choke 7/64"

SUNOCO-FELDA FIELD
Discovered,Oct.9,1964,cumulatie PO
production to Dec.31,1969, PL
4,334,567bbls.
WEST SUNOCO-FELDA FIELD
Discovered, Aug.2,1966,cumulative
production to Dec.31,1969,165,744 bbls. .

MOBIL'S NEW FIELD LJ
Discovered,Mar.30,1969,cumulative \ C ER -.
production to Dec.31,1969,21,542 bbls. -


n


SUNNILAND FIELD I
Discovered, Sept.26,1943,cumulative
production to Dec.31,1969,11,885, 306 bbls.

FORTY-MILE BEND FIELD
Discovered, Feb. 26,1954; abandoned,Sept. 1955,
cumulative production 32,888 bbls.


--Rank exploratory wells drilled
during 1969 I plugged and abandoned I

NOTE:
Development and exploratory drilling in 1969 is shown in Tables 3 and 4.
Data sheets for each well drilled are shown in Appendix 1.


Figure 1. Florida petroleum exploration and production, 1969.







Table 1. Monthly and Cumulative Pumping Production in Barrels, 1967, 1968,
and 1969 from the Four Oil Fields of (Southern) Florida.


Humble's
Sunniland Field
Collier County
(discovered in 1943)


Sun's
Sunoco Felda Field
Hendry and
Collier Counties
(discovered in 1964)


1967 1968 1969 1967 1968 1969
(16 Wells) (16 Wells) (18 Wells) (25 Wells) (23 Wells) (22Wells)


56,138
48,766
53,733
50,845
50,394
50,276
50,439
49,196
44,525
47,569
42,780
40,713
585,374


42,592
39,142
44,203
43,211
46,761
47 026
47,789
47,885
46,070
61,032
60,793
54,951
581,455


58,259
51,638
67,935
71,236
75,445
73,589
73,254
64,000
66,194
59,602
61,300
68,141
790,593


88,583,
79,428
87,202
85,565
86,079
83,143
86,412
80,120
77,556
77,629
72,874
68,423
973,014


73,259
68,847
74,863
75,144
74,504
73,304
76,611
75,341
74,681
71,643
66,280
66,871
871,348


67,443
60,850
65,385
64,247
63,897
65,112
68,253
66,878
61,314
70,339
67,060
71,417
792,195


Mobil's
New
Sun's Field
West Collier
Sunoco-Felda Field County
Hendry County (discovered
(discovered in 1966) Mar. 30, 1969)
1967 1968 1969 1969
(1 Well) (3 Wells) (5 Wells) (1 Well)


880
649
903
849
854
889
852
875
880
839
643
680
9,793


735
774
674
611
617
587
575
1,147
3,602
3,572
3,286
5,502
21,682


4,997
4,402
4,364
4,816
4,846
4,786
9,765
13,176
13,018
14,060
25,795
25,130
129,155


Month
January
February
March
April
May
June
July
August
September
October
November
December

Cumulative
Dec. 31,
Previous
Year

Cumulative
Dec. 31
Respective
Years


1,497
2,874
2,665
553
3,344
3,843
3,383
3,383 est.
21,542 est.


21,542 est.


9,927,884 10,513,258 11,094,713 1,698,010 2,671,024 3,542,372 5,114 14,907 36,589



10,513,258 11,094,713 11,885,306 2,671,024 3,542,372 4,334,567 14,907 36,589 165,744






BUREAU OF GEOLOGY


Table 2. Salt water Production in Barrels, Specified Years, from the Four Oil Fields
of (Southern) Florida.


Salt Percent
Water of Total
Field Year Production Fluid Yield

Sunniland 1967 1,646,215 74%
1968 1,693,749 74%
1969 2,301,566 75%

Sunoco-Felda 1969 1,108,394 58%

West Sunoco-Felda 1969 172,355 57%

Mobil's New Field 1969 12,183 est. 36%*

* Following cement "squeezing" operations in the latter part of 1969, Mobil's new one-well
field now makes only about 0.2 of 1 percent salt water.


Yields from the better wells in the field range from about 130 to 400 BOPD
(barrels of oil per day). The oil has a gravity of 19 to 26 degrees API (American
Petroleum Institute).
Salt water produced in the field is injected into the "Boulder Zone" through
two disposal wells. The interval used for disposal is very permeable, contains
very saline formation water, and occurs between 2,960 feet and 3,020 feet in the
No. 8 GCRC (Gulf Coast Realties Corporation) disposal well, and 2,830 feet and
3,300 feet in the No. 14 GCRC disposal well.
At this time it is thought that 35 million barrels of oil probably is a reasonable
figure for the initially recoverable reserves of the field.

DEVELOPMENT DRILLING

Two wells producing from the upper Sunniland Limestone were completed by
the Humble Oil and Refining Company in the Sunniland field in 1969. These
wells were:

No. 26 Gulf Coast Realties Corporation
No. 27 Gulf Coast Realties Corporation

The top of the Sunniland Limestone in these wells is contoured in figure 2;
Well Data Sheets for the wells are included in appendix 1.
The No. 26 Gulf Coast Realties Corporation well had an initial production of
36 BOPD with 269 BWPD (barrels of water per day) from zone D; perforations







Table 3. Development Drilling
Completed in Florida, January 1,1969 December 31, 1969
(Total Field Footage, 46, 772 feet)


Well Name


(A) Sunniland field (Collier County)
Humble, No. 26 GCRC*




Humble, No. 27 GCRC


Total, Sunniland field


(B) West Sunoco-Felda field (Hendry County)
Sun, No. 28-3 Lee-Cypress "A"


Sun, No. 33-2 Red Cattle "B"


Total Depth (feet)


11,711




11,700


23,411


11,675


11,686


Initial Production Test from upper Sunniland
Limestone (all with conventional pump)


Zone D: 36 BOPD* with 269 BWPD*; perforations,
11,598-604 feet. Recompleted in zone C
for 242 BOPD with 103 BWPD; perfs.
11,573-584 feet

Zone D or zone C: 40 BOPD with 293 BWPD;
perforations, 11,588-600 feet



Interval "C"t: 297 BOPD with 14 BWPD;
perforations, 11,456-466 feet

Interval "C": 408 BOPD with 12 BWPD;
perforations, 11,464-472 feet


Total, Sunoco-Felda field


TOTAL


46,772


* Abbreviations: GCRC is Gulf Coast Realties Corporation; BOPD is barrels of oil per day; and BWPD is barrels of water per day.
t Interval "C" of these wells is the approximate stratigraphic equivalent of zone C of the Sunniland field.









Table 4. Exploratory Drilling
Completed in Florida, January 1, 1969. December 31, 1969
(Total Exploratory Footage, 40,488 feet, plus the footage in three confidential wells)


Well


Total Depth
(feet)


(A) New-field discovery wildcat
Collier




(B) Dry new-field wildcat
Duval
Duval
Duval
Lee
Polk
Santa Rosa

TOTAL


Mobil, No. 1 Collier Jr.





Durham, No. 1 Gilman
Durham, No. 1-B Gilman
Durham, No. 1 Monticello
Mobil, No. 1 Sanders
Sun, No. 1 Shepard
Anderson, No. 1 FSL* 2338


11,987








11,960
9,670
6,871

40,488+


Lower Sunniland Limestone
discovery IP* 118 BOPD* with
78 BWPD* through
perforations, 11,870-892 feet


Confidential to Aug. 15, 1970
Confidential to Aug. 15, 1970
Confidential to June 19, 1970
Swabbed 1/2 BOPH*; P and A*
Confidential to May 5, 1970
Drilled on land to hold State water
bottom lease in East Bay


These classifications are after Lahee, Frederick H. (AAPG, 1944, v. 28, table 1, p. 709).

* Abbreviations:
IP is Initial Production; BOPD is barrels of oil per day; BWPD is barrels of water per day; BOPH is barrels of oil per hour; P and A is plugged
and abandoned; and FSL is Florida State Lease.


County


Comment








LOCATION


SUNNILAND
FIELD


1- I~5-56-0~! ( /-?so s^W


EXPLANATION I I| ',i|
1969 Completions: 4 .. 0 -, A -', 17 ,o ,, 0
Well No. 26, initial production is -i \
was 242 BOPD w/103 BWPD \- 19 I
(Upper C zone) \- Gc, i-Corp 4 P
Well No.27, initial production E / GC. o-,
was 40 BOPD w/293 BWPD,
@) New producing well Z
(Campleted 1962-1968,incl.) '
1 Old producing well,deepened. Section 30
(Re-completed,1963) econ25 /
Abandoned producer A /
Plugged and abandoned (initially) 7C 14 ;-- __
gSWDConverted to disposal well
*20 Well number
-11,55a Datum below sea level
Contour interval 10 Feet


Figure 2. Structure map on top of the Sunniland Limestone, Sunniland field, Collier County,






BUREAU OF GEOLOGY


originally known as the No. 1-"B" Red Cattle Company wells. In 1968 two
additional producers, which on initial production tests yielded a combined total
of 187 BOPD with 249 BWPD, were completed as offsets to the discovery wells.
Also in 1968 a dry hole was drilled which defined the. limit of the field to the
north.
In each of the first three producing wells in the West Sunoco-Felda field, the
Roberts zone as described in the section of this report dealing with the original
Sunoco-Felda field is the productive interval.
In 1969, Board of Conservation Order No. 8 recognized that there was no
connection between the oil accumulation in the West Sunoco-Felda field and the
Sunoco-Felda field proper, except the common water drive of the area. Figure 3
shows these two fields to be separated by a distance of 3 miles; it also shows two
plugged and abandoned wells which are structurally high, and which are located
between the two fields. These intervening wells produced large quantities of salt
water on DSTs (drill stem tests) of the Roberts pay zone, as follows:

Well Drill Stem Test Results

Sun Oil Co., Interval: 11,481-491 feet
No. 26-1 Lee- Chokes: 5/8 and 1/4 inch
Cypress Tool Open: 4 hours
Recovery: 6,175 feet of salt water plus 300
feet of very slightly oil-cut fresh water
Pressures: Flowing, 1,500 psi; Shut-in, 4,600 psi
Commonwealth Interval: 11,410-483 feet
and Gulf Coast, et al Recovery: 5 feet of heavy oil and 2,300 feet
No. 1 Red of salt water
Cattle Co.

In the Sun, No. 26-1 Lee-Cypress well the "pay" zone consists of soft limestone
which appears to have the porosity characteristics of a classic chalk. The subject
section is fairly soft also in the Commonwealth Oil Company and Gulf Coast
Drilling and Exploration Company, No. 1 Red Cattle Company well. The
porosity of chalk is extremely good, but the pore spaces are minute. Such rocks
may contain water, but act as a barrier to oil migration.


DEVELOPMENT DRILLING

Drilling in 1969 in the West Sunoco-Felda field consisted of two offset wells,
both located in the Southern part of the field. Both of these tests were
completed as far better producers than previous field wells. The wells are:





-%" \WESTSUNOCO
HUMBLE No.1, \ \ FELDA FIELD
Lehi h Acres Devel.,Inc
c271

Commenced May 5,1969 10
Temp.Abd. Aug.29,1969
Proposed d pth 16,000' ."" A
Actual T.D. 15,710' ,/ 20
7T.casing I ~. /
Set at 12,754' -
Waiting for further testing / d
2I ey. ^ J


SDec. 31, 1969
I
Producing well, I.P not yet determined
Plugged and abandoned
STemporarily abandoned
Well drilling,coring or testing
Permitted location,-(Oct.28,1969) Date of permit
INITIAL PRODUCTION (IP)
,.P of 300-427 BOPD
I.Rof 10-00-300 BOPD
I.P of 5- 100 BOPD


SUNOCO FELDA FIELD


INJECTION WELLS
sw Dry hole converted to salt water
disposal and pressure maintenance facility
w' Dry hole converted to fresh water Injection
well to maintain field pressure
FW Abandoned producer converted to fresh water
injection well to maintain field pressure
S0" Oil permeability barrier


Figure 3. Structure map on top of the Sunniland Limestone marker, Sunoco-Felda and West Sunoco-Felda fields,
Hendry County and Collier County.







BUREAU OF GEOLOGY


were at 11,598-604 feet. The well was recompleted in zone C with an initial
production of 242 BOPD with 103 BWPD; perforations were at 11,573-584 feet.
Both of the productive zones are in the upper part of the Sunniland Limestone.
This well was one foot high to the No. 6 Gulf Coast Realties Corporation
producer, located 1,700 feet to the northeast. The No. 6 well has produced
almost 2 million barrels of oil, and during October, 1969, its production
averaged 136 BOPD with 150 BWPD.
The No. 27 Gulf Coast Realties Corporation well had an initial production of
40 BOPD with 293 BWPD. Electric log correlations reveal that the productive
interval is either zone C or zone D; perforations are at 11,588-600 feet.

SUNOCO-FELDA FIELD

In 1964 the Sun Oil Company discovered the Sunoco-Felda field, located
mainly in Hendry County, with the southern edge extending into Collier
County. This field is 18 miles north of the Sunniland field.
Structural nosing associated with a decrease of oil permeability in upgradient
directions is the trapping mechanism in the Sunoco-Felda field, figure 3. There
are 22 producing wells drilled on 160-acre spacing on this structure. The limits
of the field in all directions have been defined by 11 dry holes of which 7 were
offset locations, and 4 were outposts; also, 2 edge wells which were marginal
producers have been abandoned as oil wells.
Production is from the Roberts zone of the upper Sunniland Limestone. The
top of the Roberts zone is reached at depths ranging from about 11,460 feet to
11,488 feet; this zone is correlative with zone D of the Sunniland field. Babcock
(1964, fig. 4 and fig. 5) shows that in wells in the Sunoco-Felda area the Roberts
zone is 17-20 feet thick and consists of very soft to moderately soft
microfossiliferous (miliolitic) calcarenite. It is overlain by some 10 feet of
impermeable calcilutite or shaly calcilutite; and the calcilutite is overlain by a
calcareous interval which yields water when drill stem tested.
Yields from the better wells in the field range from about 200 to 320 BOPD;
the gravity of the oil is about 24.5 degrees API.
Pressure maintenance for the field is implemented by one salt water injection
well, and three fresh water injection wells (fig. 3).

DEVELOPMENT DRILLING

There was no drilling in the Sunoco-Felda field in 1969.

WEST SUNOCO-FELDA FIELD

In 1966 the first test drilled in this field was completed as a commercially
marginal producer; this was the Sun, No. 21-3 Red Cattle Company "B" well,







INFORMATION CIRCULAR NO. 71


Sun, No. 28-3 Lee-Cypress "A"
Sun, No. 33-2 Red Cattle Company "B"
Core descriptions, electrical logs, drill stem tests and initial production tests on
these wells are depicted on Stratigraphic Cross Section A-A', figure 4; the top of
the Sunniland Limestone marker is contoured on figure 3; and Well Data Sheets
for the wells are included in appendix 1.
Cores of these 1969 completions, as depicted in Stratigraphic Cross Section
A-A', contained saturation not only in the Roberts zone proper, which was
described previously in this report, but also in an immediately overlying interval
which produced water in wells of the original Sunoco-Felda field. Where water
bearing, the subject interval consists of dense, chalky calcilutite; circumstances
suggest that these rocks are impermeable to oil.
The Roberts zone is the stratigraphic equivalent of zone D of the Sunniland
field. And, the upper part of the interval of saturation in the West Sunoco-Felda
wells completed in 1969 (fig. 4) has been informally referred to as interval "C",
to indicate its approximate stratigraphic equivalency with zone C of the
Sunniland field, where the "pay" is a discrete unit of saturated porosity
separated by hard rock from underlying and overlying productive units.
However, in the No. 28-3 well, of the West Sunoco-Felda field, the calcilutite
between the upper interval (so-called interval "C") and the lower interval
(restricted Roberts zone) contains slight vuggy porosity in moderately hard
chalky calcilutite, and is only 4 feet thick; this could well be insufficient to serve
as a vertical oil-permeability barrier between the intervals of saturation. It is
probable that pressures in the No. 28-3 well above and below the hard calcilutite
are very interdependent. Certainly in the No. 33-2 offset well to the south the
entire section of saturation consists of soft calcarenite with excellent vuggy and
intercrystalline porosity; there is no rock which could serve as a vertical
oil-permeability barrier anywhere within this section. Therefore, the entire
section of saturated rock in the No. 33-2 well forms a single pool, and the
interval of saturation represents a thickening of the Roberts zone, rather than
two separate zones.
The oil accumulation in the West Sunoco-Felda field is not part of the
Roberts pool of the Sunoco-Felda field proper, since the two fields are separated
by a barrier to east-west oil migration (fig. 3). However, the two oil
accumulations are interdependent to some extent, since they have a common
water drive, as discussed under "West Sunoco-Felda Field-Description."
Two additional offset wells located in the southern part of the West
Sunoco-Felda field (fig 3) were not completed as of the end of the report period,
and hence are not listed in the development drilling tabulation, table 3. The
Humble, No. 32-1 Lee-Cypress "A" wells, which probably will be a good
producer from the upper part of the Roberts zone which is productive in the
Sun, No. 28-3 Lee-Cypress "A" well, was testing the Sunniland Limestone on






BUREAU OF GEOLOGY


December 31, 1969. Also, the Sun, No. 33-3 Red Cattle Company "B" well was
coring the Sunniland Limestone on this date.
There are as yet undrilled permits issued to Sun for two other wells to be
located in the southern part of the field. These tests will be designated the No.
29-4 Red Cattle Company "B" well, located in the southeast quarter of Section
29, and No. 28-4 Lee-Cypress "A" well, located in the southeast quarter of
Section 28.

MOBIL'S NEW FIELD

The Mobil Oil Corporation, No. 1 Barron Collier, Jr., well was completed
March 30, 1969, as a discovery well for a new field. As yet a confirmation test
has not been drilled in this field; also, the field had not been officially named as
of the end of the report period.
The discovery well is located in Section 9, Township 47 South, Range 28
East; the survey is 1,980 feet from the south and east lines of the section. This is
in the Lake Trafford area, Collier County.
On the Initial Production Test, after acidation with 2,500 gallons, this well
yielded 118 BOPD, with 78 BWPD from perforations at 11,870-892 feet; the
pump was set below 11,000 feet. Subsequently, up-hole water was "squeezed
off" with cement, and the well was re-acidized. Testing over the past several
months indicates that the stabilized production will be about 100-115 BOPD
with 0.2 of 1 percent water.
The Stratigraphic Cross Section of figure 5 presents core descriptions,
electrical logs, and formation fluid and pressure tests for wells in the Lake
Trafford area. This section includes the Mobil discovery well and two other wells
which have been plugged and abandoned. Well Data Sheets for the discovery well
are included in appendix 1.

The productive interval in the discovery well is the lower Sunniland
Limestone of Lower Cretaceous Trinity Age, whereas the other fields in Florida
produce from the upper Sunniland Limestone. As depicted on the Stratigraphic
Cross Section, the minor and uppermost part of the productive interval is hard
calcilutite described as "vitiated rock;" cores were not available for the
remainder of the productive interval. The fine-textured "vitiated rock"
examined does not appear "rotten", and does not consist of Orbitolina rubble.
However, the rock is rather easily flaked off inward toward porous spaces, and it
is especially susceptible to fracture along occasional lines of weakness by a
needle-point used in examing the rock.
The electrical log, and correlations on the Stratigraphic Cross Section, indicate
that in the discovery well the zone of permeability, for most of which cores are
not available, could be 10 to 15 feet thick. Cores from the Mobil, No. 1 Sanders
well of the cross section revealed only some 2 feet of permeability in the zone of











Su

Sec- 2
Eret 48"'E


4e1









13Sf








Srem Test


W-7804
in Oil Company
1-3 Red Cottle"B"
21-T 45S-R28E
.E- TD-11,675' Drlr.
11,681' Schl.


=


Tan
PWcrtotw
Brawn
Sucrusic
Black
Orbit


> INDUCTION
ELECI RICAL<



- -


jz~


I~zz


- 2/3 mi.


Roberts Zone Porosity
(D Zone)


1--7


at 1-,479-486 feet (corrected depth,


- 3-- 2 feet) Chokes,-and. inch. Working pressure,
Surnds.T Taah open 4 hours. Recovery was 2,000 feet
- #!er cushian,.3,00 feet of gas, 1,540 feet of orl,and
.:C feet cf Gil-cut salt water (C;, 130,000 ppm).
Sm-- n mcle pressures,flowing, t.038 and 3,227 psiiclosed-


S Fraductoan Test through perforations at 11,486-489
and after acidation with 500 gallons. 56 BOPD with
a EWPD t73%I) Gravity, 24,6 degrees API. GOR, 90to 1.
: am-, t wock#ing barrel, lF inch; 10 100-inch strokes per



Alt Taps aa this Cross Section were determined
from good Gamma Ray Correlations.


W-8609
Sun Oil Company
No.28-I Lee Cypress
Sec.28-T45 S-R 28 E
Elev. 48'D.F T.D. 11,509' Drlr.
II,11522 Sch-.
I ft II 1 \t--=1


TEST

S


* Orbit. -
Orbit. -
o chalky Z -


INDUCT
ELECT


_ -- -_


ION
ICAL


-- 3/4 mi.


TOP LAKE TRAFFORD FM.-a


TOP SUNNILAND
LIMESTONE MARKER-,


Drill Stem Test at 11,470-479 feet (corrected depth,11,483-492
feet).Chokes,%andy4 inch. Cushion,2,000 feet. Tool open 4 hours.
Recovery was 3,000 feet of sweet gas,254 feet of clean oil, 1,800
TOP feet of oil cut with gas and fresh water, 218 feet of fresh water, and
PUNTA GORDA 3,312feet of salt water,with a trace of oil and gas (114,000 ppm).
ANHYDRITE- Hydrostatic pressure, 5,221 psi. Bottom hole pressures, flowing,
1,789 and 3,234 psi; closed-in, 4,931 and 4,736 psi.


Initial Production Test through perforations at 11,486-489 feet,
after ocidation with 500 gallons: 105 BOPD with 88 BWPD
(45.6%). Gravity, 25.2 degrees API.- GOR, 70 to I. Pump data:
working barrel, 14 inch; 9 4100-inch strokes per minute.
LITHOLOGY DESCRIBED FROM CORES
LIMESTONE
Calcarenite Calcilutite
El) Moderately soft
FlnD Hard E Shaly
E DOLOMITE 71 ANHYDRITE
OIL SHOWS POROSITY
* Heavily saturated V Large vuggy
* Saturated v Small vuggy
o Stained z7 Inter-crystalline
d Much asphalt -p Pinpoint


1969 COMPLETION
W-8758
Sun Oil Com pny
No.28-3 Lee Cypress"A"
Sec.28-T45 SRR28E
Elev.48'D.F. T.D.II,676'DrIr
S 11,678' Schl.


Dolomitic
Gray
Chalky
Rudisftdi


.4



1II


Initial Production Test through (un-acidized)
perforations at 11,456-466 feet- 296 BOPD with
14 BWPD(4.5%). Gravity,26.3 degrees, API. GOR,
150 to I,estimated. Pump data: working barrel, 01
inch; 13 100-inch strokes per minute.


_ y mi. ->.E
E


"C"nterval
+ D Zone


1969 COMPLETION ,
W-10324
Sun Oil Company
No.33-2 Red Cattle "B"


Sec.
lev. 47'


SP


I.T S

-st^


33-
D.Ei
I I


45S-R28 E
T.D. 11,685'Drlr.
I 686 SchI.


Initial Production Test through (un-acidized)
perforations at 11,464-472feet: 408 BOPD
with 12 BWPD (2.9%). Gravity, 25.6 degrees,
API. GOR, 498 to I (daily gas volume,203 mcfl
Pump data: working barrel, 214 inch; 12 100-
inch strokes per minute.

Datum
-11,380- -- so W-8758
I 1 81.384)
-11,390/ j-7804 W-"0,324-
(-11,393) (-11,393)
Vertically Exaggerated Sketch
Structural Top of the
Sunniland Limestone Marker


Figure 4. Stratigraphic Cross Section A-A', with lithology described from cores,
West Sunoco-Felda field, Hendry County


0 Brown
SSucrosic -
S Rudistid; c. ,
Orbit.






Brown --- -
O rb it. -
~8- -


-


i i i i -- i -4 i 11 H i i i -i I;W U-.- A I -.. jr* im l bd i i


i i i -


1. P 7E-S T


i


1 1 1


" --1


; i


-F F


.1


-L


-L


i i


-I


-lb







1969 FAILURE W-8745
MOBIL OIL CORPORATION
a I Henry Sanders,Trustee
Sect 35-T46S-R27 E 4.5
4' T. D. II960 Drlr.- -425 Miles-
S11955' Schl.
I I TOP LAKE TRAFFORD FM|


Cul!nduc
L(arerlog C


;Z~
-~i-7
1~5-






r-+d!ur~n
i : L~~IJ!~sC.
'iln
-----Lrcl
~_3_~~~~;uJ.hr!(lt__


; ? -
--


2


.~ S-Set) Water cushion, 1000 feet. Open
s every was 1,166 feet of oil and gas-cut
:us, c, Soi;rtnm hole pressures were IHM
;.: F63 ps; FF 630psi; IlS3349psi
5E psT

c..: TEST


-^*rafed
.5 -a68tt.
*iri 52 shots.


Acidized Swabbed
1,000 gallons about 1/2 barrel
of oil per hour.


TOP SUNNILAND I
LIMESTONE MARKER


TOP PUNTA GORDA
- ANHYDRITE1


1969 DISCOVERY WELL,W-8748
MOBIL OIL CORPORATION
No.I Barron Collier,Jr.
Sect.9-T47S- R 28E
D.F. 39' T.D.I I980Drlr.
r I II I ll87'Schl.


A


-H-


Brown
Sucrosic
Partiolly re-
crystllized


Dark gray
Prite Trace
0 Iracod
V La o ock
lckr
Sroy
Clear


?L l,
U,


rp-=


I., -


-a- ---*


-2 Miles-,


DST (I ,837-886feet corrected depth 1,844-893 feet). Holesize 8-. Mud weight 8.3 bs,water.Temp., 180F.
Water cushion, 1000 Chokes, and. ToQl initially open 15 minutes bubble started in II minutes.
Tool closed in 30 minutes for intiol closed-in pressure.Tool re-opened 240 minutesigood blow with
pressure increasing steadily. Recovery from the combined 15-min. and 240-min.periods was 1000'of
water cushion, 1,900'of gas-cut oil,and 550'of oil-cut fresh water. Bottom hole pressuresin psi,upper
qhort(top of toolat 11,816')were:
FIRST(15-MINUTE) INTERVAL SECOND (240-MINUTE) INTERVAL


IHM 5469 FF 1752
ICI 5440 'FCI 5386
IF 1050 FHM 5469
I P TESIThru perforations ot 11,870-892 feet
was25.6API. Pump specifications:
length of stroke, 120 .


IHM5428 FF 1733S
ICI 5411 FCI 5419
IF 1017 FHM 5378
yielded 118 BOPD with 78 8WPD(40%). Corrected gravity
working barrel, jI" number of strokes per minute, 10 :


i I-F i w i i -- i i


I


I i


'01
C\I



i,


1948 FAILU E W-1883
HUMBLE OIL ahd o DEFINING CO.
No.I Gulf Coast Realties Corporation C
3 Sect.21-47 S-R 28 E












d Gray -
WMileo




..--.-3, ) \
SBro wn ~ ~





Solt







oil, and I50 of oil-cut mud.
DST 211 1,906-950 feet). Re very in 36 hours was 2,325'
ofo oil and528'of oil'rutmud.
DST 3 (11,906-950 feet).Af era cidation with 2,500 golas.
per 'd open ole. 1,9 4-940 feet recovery was
S 4,320 oil-dut.mud, nd 2,790 of salt water,
< ^ ^c^?^^ _


POROSITY
v Vuggy
p Pinpoint


OIL SHOWS

Heavily saturated
Saturated
Stained and bleeding oil
o Stained
d Much asphalt
d Asphalt

COLLIER CO.
W-8748 m
LOCATION "


R 27 E R 28 E
W-8745 ,(-I 11 571)
-11,575 L





-11,6501
Vertically Exaggerated Sketch
Structural Top ofthe
Sunniland Limestone


Flgu 5. Stratigraphic Cross Section, with lithology described from cores, Lake Trafford area,
Lee County and Collier Couiity.


I -


LITHOLOGY DESCRIBED FROM CORES


LIMESTONE
Calcorenite Colcilutite
CO Soft
IJ Hord ::B


Dolomite
EFZ


-IF=-r--


1 I ~I 1 17 11-~~1 1


i


s- Sholy

Anhydrite
E2m


.


---





INFORMATION CIRCULAR NO. 71


saturation. It is understood that permeability in the lower Sunniland Limestone
was developed by boring organisms on a mud flat. The interval between the top
of the zone of saturation and the Punta Gorda Anhydrite was about 15 feet
thick in the discovery well, and only 2 feet thick in the No. 1 Sanders failure.

EXPLORATION

EXPLORATORY DRILLING

Table 4, which summarizes exploratory activity, shows that during the report
period 40,888 feet were drilled in four exploratory tests, one of which resulted
in the discovery by the Mobil Oil Corporation of the new field discussed in the
immediately proceeding part of this report. Information on three other wells
listed on table 4, and drilled in Duval County, northeastern Florida, will remain
confidential at the request of the operator until the middle of 1970. Also, the
Humble Oil and Refining Company, No. 1 Lehigh Acres Development,
Incorporated well was not completed as of the end of the report period, and
hence it is not listed in table 4. Drilling operations on this proposed 16,000-foot
Jurassic test were commenced on May 22, 1969, and the well was temporarily
abandoned August 28, 1969 at a depth of 15,710 feet, after reportedly reaching
"basement" rock. This is the deepest any well has been drilled in Florida.
A rumored show in the Sunniland Limestone of the Lehigh Acres well had not
been production tested as of the date of this report.
The Lehigh Acres well is located about 4 miles west of the West Sunoco-Felda
field, and in Section 14, Township 45 South, Range 27 East, Lee County; the
survey is 1,302.5 feet from the west line and 1,661.3 feet from the north line of
the section. There is a probable embayment between this well and the West
Sunoco-Felda field, as indicated by subsurface control in the field (fig. 3).
Another exploratory location, as yet undrilled though permitted on December
2, 1969, is not included in table 4, which lists only completed wildcat tests. This
test will be the Triton Oil and Gas Corporation, No. 1 University of Miami well;
the permitted location is:

Section 15-T45S-R34E
Survey: 660 feet east and about 433 feet north of the section lines

This places the location 4 1/2 miles west of the RK Petroleum Corporation, No.
2 Florida State Lease 1939-1939 S well, which was plugged and abandoned in
1968 as the westernmost well in the Forty Mile Bend area. The RK No. 2 well
contained thin sections of fair to good shows in both the upper and lower
Sunniland Limestone; but, the entire Sunniland Limestone section was very
tight.






BUREAU OF GEOLOGY


The proposed depth of the Triton Oil and Gas Corporation well is 12,500
feet. This depth should reach the Brown Dolomite section, which Banks (1964,
fig. I) reveals to have excellent porosity in a section about 100 feet thick in
wells along the southwestern coast of Florida. The Brown Dolomite is the upper
part of the "C-D" hoffatella decipiens) zone, which is about 1,700 feet thick;
and, Banks records (table 1) that the "C-D" zone in 8 wells of central and
southwestern Florida has contained 16 minor hydrocarbon manifestations and 1
possible manifestation.

GEOPHYSICAL ACTIVITY

OFFSHORE

The 1969 geophysical permits in State and Federal water bottoms offshore
from Florida are summarized in table 5; locations of the permits are shown on
figure 6. These presentations show that in 1969 there were 8 permits for
offshore geophysical activity; and one permit to test the use of explosive charges
to excavate cavities for footings for the anchors of oil well drilling barges. Of the
geophysical permits, 7 were for work to be performed on State and Federal
water bottoms west and south of Florida; and one permit was for a seismic
survey of Federal acreage offshore from the Florida east coast.
The number of offshore permits for each of the previous six years has been 5
in 1963, 7 in 1964, 10 in 1965, 13 in 1966, 23 in 1967, and 19 in 1968.

MAINLAND

Details of Florida's mainland geophysical activity, 1969, which totalled 236
crew weeks, are presented in table 6. Table 7 is a recapitulation of this activity
by regional areas within the State.


LAND

WATER BOTTOM LEASES

Figure 7 shows the locations, and a tabulation of lease information, for
Florida's two current offshore leases. The mineral rights of both of these leases,
containing a combined total of 3,910,460 acres, are held by the Coastal
Petroleum Company, and the annual rental received by the State from the leases
is $49,614.40.
Also, Coastal holds State Mineral Lease No. 248 on 11 lake bottoms of
Florida containing a combined total of 660,736 acres, including Lake
Okeechobee, with 467,200 acres. The annual rental on this lease is $19,985.92.







Table 5. Florida Offshore Geophysical Permits, 1969
(permit locations plotted on figure 6)


1969 Permit
(Date)


Permittee (Client)


80 (Jan. 6) Delta Exploration
81 (Feb. 3) Western Geophysical

82 (May 13) Exploration Surveys, Inc.


82a University of Wisconsin
Texas Tech.
Southwest Center for
Advanced Studies


83 (May 27) Shell Oil Co.

84 (Aug. 19) Gearhart-Owens


Estimated Term
(Extension)
Jan. 1-Mar. 1, 1969
Feb. 4-May 4, 1969

May 15-Aug. 15, 1969


June 19-June 25, 1969




June 14-Dec. 3, 1969
(to Mar. 2, 1970)
Aug. 25-Sept. 5, 1969


85 Shell Oil Co. Nov. 11-Dec. 24, 1969
86 Texaco, Inc. Dec. 3, 1969-June 3, 1970
871 Mobil Oil Corp. Nov. 21-Dec. 5, 1969
1 This permit authorized two single seismic lines. It is not the policy of the Bur
plotting on a map such as figure 6, but rather in general terms, as follows:
Offshore Seismic Lines


Length
Permit (miles)
87 (2 lines) 53
128


Waters
Surveyed
State and Federal
Federal


Comment
Vibroseis
a. Gas gun reflection, seismic
b. Completed Mar. 18, 1969
a. Planned commencement: June 3, 1969
b. Initial 5,000 miles (single ship) gravity and magnetic
survey, completed July 31, 1969
a. World's first controlled experiment to examine
rocks underlying ocean basin
b. Refraction, to penetrate crust to depths of 250 miles
Maximum charge, 1 ton
c. Lines start on the high plateau of Mexico, and extend
to central Florida; all shots in international waters
Hydrosein and gas gun seismic

a. To test use of explosive charges for excavation of
cavities to depths of up to 50 ft. for "footings" for the
anchors of oil ell drilling barges
Air Gun seismic
Non-explosion reflection
Seismic using compressed air
eau of Geology to describe the location of single lines by


SE (Southeastward) or
NW (Northwestward) from:
SE: Marquesas Keys-Tortugas
NW: Cay Sal








































Figure 6. Florida offshore geophysical permits, 1969.







INFORMATION CIRCULAR NO. 71


Table 6. Florida Mainland Geophysical Activity, 1969
-236 Crew Weeks-


Crew
Weeks
per
total Company
45 1/2 15
6
1
4 1/2'
7 1/2
6
5 1/2
5 1/2
9 3
6


County
Escambia







Collier

Collier,
Lee,
Hendry



Gadsden
Hendry

Highlands
Jefferson

Lafayette
Leon
Nassau

Okaloosa


Okeechobee
Orange
Santa Rosa





Seminole

Taylor
Union
Walton
TOTAL


4


Company-
Contractor
Chevron-Self
Delta Exploration-Self
Getty-Teledyne
Humble-Self
Humble-Ray Geophy Co.
Phillips-Self
Superior-Self
Superior-Self
Chevron-Self
Phillips ?


Type



Reflection


43 Mobil (Type and location: one-man
gravity and magnetics crew,
with most of activity in or
near Sunniland field, of Collier
County, or just southwest
thereof)
1/2 1/2 Pan Am-Teledyne Vibrosels
4 Chevron-Self


2
1
2
1 1/2
3

5 1/2


2
1
2
1
3


3
2

12 12
10 10
92 7
30
12
11
2
30
2 2
1 1
1 1
1 1
236 crew weeks


Shell
Pan Am-Teledyne
Pan Am-Teledyne
1/2 Pan Am-Teledyne
Pan Am-Teledyne
1/2 Phillips-Self
Texaco-Self
Sun-Self
Shell
Texaco-Self
Delta Exploration-Self
Humble-Self
LL and E-GSI
Phillips-Self
Sun
Texaco-Self
Texaco-Self
Pan Am-Teledyne
Pan Am-Teledyne
Phillips-Self


Vibroseis
Vibroseis
Vibroseis
Vibroseis








Reflection
Vibroseis





Vibrosais
Vibroseis


1


43







18 BUREAU OF GEOLOGY



Table 7. Recapitulation of Florida Mainland Geophysical Activity, 1969,
by Regional Areas of the State

Area Crew Weeks

Northwestern Florida
Florida Panhandle
Escambia County 45 1/2
Okaloosa County 4 1/2
Santa Rosa County 92
Walton County 1
Total, Florida Panhandle 144

Big Bend Area
Gadsden County 1/2
Jefferson County 1
Lafayette County 2
Leon County 1 1/2
Taylor County 1
Total, Big Bend 6
Total, Northwestern Florida 150

Northern Peninsular Florida
Nassau County 3
Union County 1
Total, Northern Peninsular Florida 4

Central Florida
Highlands County 2
Okeechobee County 12
Orange County 10
Seminole County 2
Total, Central Florida 26

Southern Florida
Collier County 9
Collier, Lee and Hendry counties 43
Hendry County 4
Total, Southern Florida 56

GRAND TOTAL, Florida Mainland 236





INFORMATION CIRCULAR NO. 71 19











At the request of the U.S. .
Department o4 e
II-
4~4'r



v, 4



At the request of the U.S.
Department of Defense, on ,
the Statleleasing restriction dutI o
of 1963 was renewed in n'e.. .,
March,1967.4 0 "" ".-7---/t


I j j




Dand of Deeny i7-



Lease Acres Rental Prouction /
Coastal Pet.Co -" ......
224-A 1,936,100 $22,566.40 one-eighth
224-B 1,974,360 $27,048.00 one-eighth -L J
Total 3,910,460 $49,614.40


Lease outlines are approximate


Figure 7. Offshore Florida State Leases, December 31, 1969.






BUREAU OF GEOLOGY


In a Federal Court case which commenced October 20, 1969, and lasted three
days, Coastal brought suit against the U.S. Corps of Engineers, the Trustees of
the Internal Improvement Fund, and the Central and Southern Florida Flood
Control District. Coastal maintained that the defendants had illegally denied the
company the right to mine limerock from Lake Okeechobee under the terms of
its lease. As of December 31, 1969, the opinion in this case had not been
rendered, but was anticipated in the near future.

MAINLAND

Current figures on land acres leased on the Florida mainland are not available
to this office. In 1965, however, these figures totaled 3,075,219 acres.

RULES AND REGULATIONS

Order No. 8 was adopted and promulgated by the Florida Board of
Conservation (later known as the Department of Natural Resources) on April 29,
1969. This order recognized that there is no connection between the oil
accumulation in the western part of the Sunoco-Felda area, and the
Sunoco-Felda field proper, except that of the common water drive of the area.
Therefore, the oil accumulation to the west, discovered in 1966, was designated
as a separate field to be known as the West Sunoco-Felda field.
Order No. 9, which was adopted and promulgated by the Department of
Natural Resources on July 24, 1969, permits the Humble Oil and Refining
Company to utilize the "Boulder Zone" in their No. 8 Gulf Coast Realties
Corporation abandoned producer for the disposal of salt water produced in the
Sunniland field. Currently the salt water production in the field is about 8,000
barrels per day, and it is anticipated that this will increase due to the installation
of submerged pumping equipment to recover oil from the field. The injection
will be through perforations at 2,960-3,020 feet in 5 1/2 inch casing; the
chlorinity of the water sample from this interval was 19,927 ppm. This injection
will not contaminate fresh water zones.






INFORMATION CIRCULAR NO. 71 21



BIBLIOGRAPHY

Banks, Joseph E.
1964 Oil and gas prospects of the Englewood area of Lee, Charlotte and Sarasota
counties: Part IV, consisting of a study of the Comanche (Brown Dolomite
zone), the Jurassic (sand) zone, and the Jurassic (carbonate) zone, unpublished
report for the Coastal Petroleum Company, 18 p., 2 maps, 3 fig. and 3 tables.
On open file, Library of Bureau of Geology, Florida Division of Natural
Resources.









INFORMATION CIRCULAR NO. 71


APPENDIX I
EXPLORATORY WELL INFORMATION, 1969














COLLIER COUNTY




Bureau of
Geology Total
Acquisition Locality Well Fee Commenced Depth Elevation
N1. Designation API No. Operator No. Name Completed (feet) (feet)

W-8748 Cr-47S-28E.9ad 09-021.20007 Mobil 1 Barron Feb. 14,'69 11,987 39DF
Callier, Mar. 30, '69
Jr.

Location: Sec. 9-T47S-R28E (1, 980 feet from the South line, and 1, 980 feet from the East line of the section)

Remarks: 1. Discovery well, Lake Trafford field (possible field title only; not confirmed or official)

2. Casing Program:
Set 20" in 26" hole at 269' with 600 sacks of cement
Set 13 3/8" in 18 1/2" hole at 1,507' with 845 sacks of cement
Set 9 5/8" in 12 1/4" hole at 3,830' with 400 sacks of cement
Set 5 1/2" in 8 3/4" hole at 11, 987' with 359 sacks of cement
2 1/2" tubing at 11,089'

3. DST (11,837 886 feet). Hole size 8 3/4". Mud weight, 8.3 water.
Temperature, 180' F. Water cushion, 1,000 feet.
Tool open, 15 minutes, bubble started in 11 minutes. Recovery: 1,000 of water
cushion, 1,900 feet of gas-cut oil, 550 feet of oil-cut fresh water.

Tool closed in for 30 minutes for the initial closed-in pressure.

Tool was re-opened for 240 minutes for the second flow readings;
there was a good blow, with pressure increasing steadily.









COLLIER COUNTY (con't)


API No.


Operator


Well Fee
No. Name


Pressure (in pai)

Upper chart (top of tool at 11,816 feet):


Initial Hydrostatic
Initial Closed In
Initial Flow
Final Flow
Final Closed In
Final Hydrostatic


First (15 min.) Interval
First Second
Reading Reading
5,469
5,440
966 1,050
1,008 1,752
5,386
5,469


Second (240 min.) Interval
First Second
Reading Reading
5,428
5,411
889 1,017
998 1,733
5,419
5,378


Lower Chart (top of tool at 11,883 feet):

Initial Hydrostatic 5,466 5,467
Initial Closed In 5,425 5,450
Initial Flow 989 1,032 1,000
Final Flow 1,032 1,779 1,040
Final Closed In 5,396 5,454
Final Hydrostatic 5,466 5,408

4. The perforated interval of the 5 1/2- inch production casing was 11,870-892 feet (22 feet).


5. The Initial Production from this well was 118 BOPD with 78 BWPD; corrected gravity was 25. 6 degrees APL Pump
specifications were: size working barrel, I 1/4 inches; number of strokes per minute, 10; length of stroke, 120 inches.


Bureau of
Geology
Acquisition
No.


Locality
Designation


- Commenced
- Completed


Total
Depth
(feet)


Elevation
feetl


1,055
1,776











COLLIER COUNTY (con't)




Bureau of
eQology Total
Acquisition Locality Well Fee Commenced Depth Elevation
No, Designation API No. Operator No. Name Completed (feet) (feet)

6. This well produces from the tight lower Sunniland Limestone. Several applications of
acid have been used to increase permeability. An unsuccessful cementing and
acidation operation will be described as an indication of the mechanical difficulties
encountered in completion attempts. This description is:

Some four months after the well initially was completed, the operator
perforated the casing opposite salt water zones immediately above the
productive interval; in the original setting of the production string, these
sIlt water zones had been inadequately sealed because the cement "flash set. "

Through the new perforations cement was squeezed to seal the salt water zones,
Then, the well was acidized; 15,000 gallons were on the location, but not all of
it was used. It was intended that the injected acid should go into the producing
zone, but instead it went upward into the newly "squeezed" cement opposite the
water zones, and thence through the perforations at that depth and into the casing.
This pressure increased from 3,700 psi to 7,900 psi.

Subsequently the subject water zones were successfully squeezed, the well was re-acidized
(with 5,000 gallons?) and stabilized production as of December 1, 1969 was 115 BOPD
with about 0. 2 of 1 percent water.

The pump is set below 10,000 feet, but the well produces gas to the surface which
eliminates fuel cost for pump operation. This well produces more gas than any well
in Florida to date, though the gas is non-commercial in quantity.

7. Induction-Electrical Log, 3,833-11,986 feet; Borehole Compensated Sonic Log, with
Caliper, 30-11, 984 feet.

8. Top of Sunniland Limestone at 11,632 feet (-11,593 feet)










COLLIER COUNTY


Bureau of
Geology Total
Acquisition Locality Well Fee -Commenced Depth Elevation
No. Designation API No. Operator No. Name -Completed (feet) (feet)

W-8853 WCr-48S- Humble 26 Gulf Coast Jan. 3, '69 11,700 34 DF
30E-19bc Realties Apr. 25, '69
Corp.

Location: Sec. 19 T48S-R30E (from the southwest corner of the section, go north along the section line 1,984.48 feet; thence at right
angles go easterly 2,015.0 to location)

Remarks: 1. Producing well, Sunniland field

2. Casing Program:
20" in 26" hole at 245' with 300 sacks
13 3/8" in 17 1/2" hole at 1,403' with 656 sacks
9 5/8" in 12 1/4" hole at 3,699' with 400 sacks
5 1/2" in 8 3/4" hole at 11,711' with 450 sacks

3. Completion Steps

Perforations Initial Acidation Subsequently Cemented

11,573 11,584 (up "C" zone) 250 gal. 15% Hcl
11,598-- 11,604 ("D" zone) 250 gal. 15% Hcl 50 sacks





* Florida well and locality designation system is described in appendix 3.














COLLIER COUNTY (con't)


Locality
Designation At

4. Production Tests:


'I No.


Operator


Well Fee -Commenced
N. Name -Completed


TEST
DATE PERIOD OIL

Initial Completion in "D" zone


24 HR. RATES WATER
WATER TOTAL OIL WATER TOTAL %


2-28 24 hr. 36 269 305 36 269 305

3-19 24 hr. 102 232 334 102 232 334

Recomplete Well to "UC" zone, with conventional pugp

3-16 24 hr. 471 50 521 471 50 521

4-10 24 hr. 242 103 345 242 103 345

Remove Rod Pump and Install Electrical Submersible Centrifugal Pump ("UC" zone)

4-17 4 hr. 124 74 198 744 444 1,188

4-24 6 hr. 148 106 254 592 424 1,016

6-7 24 hr. 303 384 687 303 384 687

5. Induction-Electrical Log, 3,700 11,710 feet-


88 100

70 100



10 100

29 100



37 100

42 100

56 100


Bureau of
Geology
Acquisition
No.


Total
Depth
Ifeet)


Elevation
IfHeti


GOR


-~--


ifectl















COLLIER COUNTY


Locality
Designation


API No.


Operator


Cr-485-29E- 09-021-20008 Humble


Well Fee Cmmenced
No. Name -Camoleted


27 Gulf Coast
Realties
Corp.


Total
Depth
(feet)


11,715


Location: Sec. 24-T48S-R29E (1,400 feet from the North line, and 2,600 feet from the East line 2f the section)


Remarks: 1. Producing well, Sunniland field
(perforatfans, 11,588-11, 600 feet)

2. Initial production test: 40 BOPD, with 88%
of the total fluid recovery being salt water.
GOR was 100 to 1; corrected gravity, 26
degrees API.

3. Induction-Electrical Lag, 3,720-11,694 feet


Elevation
(feet)

35 DF 0


0



















DUVAL COUNTY


Bureau 3t
Geology
Acquisition
No.


Locality
Designation


API No.


Operator


DU-3S-23E 09-031-20003 Durham
llad


Well Fee -Commenced
No. Name Completed


Gilman Apr. 24, '69
Paper May 15, '69


Total
Depth
(feet)


Location: Sec. 11-T3S-R23E (South 32'30'56" Eaqt a distance of 196. 67 feet from the center of the Northwest quarter
of the Southeast quarter of the section)


Remarks: 1. Plugged and abandoned.


Elevation
95 Dt)

95 D


__



















DUVAL COUNTY


Locality
Designation


API No.


Operator


DU-3S-23E-17aa 09-031-20002 Durham


Well Fee Commenced
No. Name Comoleted


Total
Depth
(feet)


B-l Gilman July 12, '69
Paper Aug. 7, '69


Location: Sec. 17-T3S-R23E (North 2'34'38" East, a distance of 199. 07 feet from the center of the NW quarter of the section)



Remarks: 1. Plugged and abandoned.


0



Elevation
(feet) 0

94 DF -






z


A-a


Bureau of
Geology
Acquis ition
No.


W-8898



















DUVAL COUNTY


API No.


Operator


09-031-20001 Durham


Well Fee Commenced
No. Name Completed


Total
Depth
(feet)


Monticello Feb. 14, '69
Drug Co. Mar. 19, '69


Location: Sec. 23.TIS-R24E ( 1989.80 feet West, and 630. 33 feet South of the Northeast corner of the section)


Elevation
(fact)

91 DF



1


1. Plugged and abandoned.


.1.


W-8881


Locality
Destinat inn


DU- S- 24E-
Z3ab


Remarks:


Deal, nto API No nnerator















HENDRY COUNTY


API No.


Operator


09-051-20006 Humble


Well Fee Commenced
No. Name Comoleted


32-1 Lee-
Cypress "A"


Total
Depth
(feet)


11,600


Location: Sec. 32-T45S-R28E (1,100 feet from the North line, and 1,100 feet from the East line of the section)


Remarks: 1. Producing Well, West Sunoco-Felda Field



Note: Additional data not supplied because well was not officially completed,
as of December 31, 1969. On this date the well was still production
testing the upper Sunniland Limestone.


Elevation


46 DF












>-4


Bureau of
Geology
Acquisition
No.


Locality
Designation


Hy-45S-28E-
32bb












HENDR Y COUNTY


Bureau of
Geology Total
Acquisition Locality Well Fee -Commenced Depth Elevation
No. Designation API No. Operator No. Name Completed (feet) (feet)

W-8758 Hy-45S-28E- 09-051-20005 Sun Oil Co. 28-3 Lee May 9, '69 11,675 49 DF
28cc Cypress July 9, '69
"A"


Location: Sec. 28-T45S-R28E (1,183.6 feet from the West line, and L, 187. 6 feet from the South line of the section)

Remarks: 1. Producing well, West Sunoco-Felda Field

2. Casing Program:
20" in 26" hole at 217' with 500 sacks of cement
13 3/8" in 17 1/2" hole at 1,132' with 800 sacks of cement
95/8" in 12 1/4" hole at 3,560' with 200 eacks of cement
5 1/2" in 8 3/4" hole at 11, 675' with 473 sacks af cement;
perforated at 11,456-466 feet with 4 shots per foot

2 7/8" tubing at 7,018'

3. DST's: Nane

4. Perfaration and Acidation:.
(a) Perforated at 11,456-11,466 feet with 4 shots per foot.
(b) This well was not acidized for the initial production test.

5. Initial Production Test (24 hours if durat ln):
296 BOPD with 15 BWPD (4.5 percent of total fluid)
(Pumping details: working barrel, I1/Z inches; strokes per
minute, 13; length of stroke, 100 inches)


















HENRY COUNTY (con't)



6. Induction-Electrical Log, 3,561-11,678 feet; borehole compensated
Sonic- Gamma Ray log, 8,000-11,678 feet.
7. Tops (IES)'
Sunniland marker 11,426 (-11,378) feet


0



0
Cl

C,

p


0'












HENDRY COUNTY


Bureau of
Geology Total
Acquisition Locality Well Fee Commenced Depth Elevation
No. Designation API No. Operator No. Name Completed ((eet) (feet)

Hy=45S-28E-313. 09-051-20007 Sun Oil Co. 33-2 Red Cattle Sept. 25, '69 11,686 50 DF
Co. "B" Nov. 6, '69

Location: Sec. 33-T45S-R28E (center of the N. W. quarter, being 1,330.4 feet from the North line,
and 1,324.6 feet from the Welt line of the section).

Remarks: 1. Producing well, West Sunoco-Felda field


20" in 26" hole at 204' with 500 sacks of cement T
13 3/8" in 17 1/2" hole at 1,365' with 800 sacks of cement
9 5/8" in 12 1/4" hole at 3,570' wkh 200 sacks of cement
5 1/2" in 8 3/4" hole at 11, 685' with 450 sacks of cement
2 7/8" tubing at 4,687'

3. DST's: None

4. Perforation and Acidation:
a. Perforated at 11,464-11,472 well with 4 shots per foot
b. This well was not acidized for the initial production test.

5. Initial production test (24 hours of duration):
-408 BOPD with 12 BWPD (2. 9 percent). GOR was 498 to 1
(Pumping details: Working barrel, 2 1/2 inches; strokes per minute,
12; length of stroke, 100 inches)

6. Induction Electrical log, 3,572 11,686 feet.





















HENDRY COUNTY


rOneratnr


Hy-44S-28E-33C 09-051-20009 San Oil Co.


Well Fee -Commenced
No. Name Completed


33-3 Red
Cattle
Co. "B"


Total
Depth
(feet)


Dec. 3, '69


Location: Sec. 33-T45S-R28E (1,555 feet fr3m the South line, and 1,325 feet (rom the West line of the section)


"Ii





Elevation C
(feet)

46 DF






-41


Additional information is not available because this well was not completed
on December 31, 1969, on which date the operator was coring the Sunniland
Limestone.


Locality
n.sia natin


APIT N .


Note:


Aw. *DT .- e or












I. t:: (COUIN'' Y


Bureau f
Geology Total
Acqurision Locality Well Fee -Commencud Depth Elevation
No. Designat ion API No. Operator No, Name Completed (feet) (feet)

Le-46S-27E-35b 09-071-20001 Mobil 1 Sanders July 23, '69 11,960 41 D
Sept. 15, '69

Location: Sec. 35-T465-R27E (1, 200 feet from the East line, and 1,320 feet from the North line of the section.)
This location is about 4 1/2 miles N. W. of the Mobil, No. 1 Barron Collier, Jr. discovery well.

Remarks: 1, Plugged and Abandoned

2. Casing Program:
Set 20" in 26" hole at 243' with 275 sacks of cement
Set 13 3/8" in 17 1/2" hole at 1,483' with 1,050 sacks of cement
Set 9 5/8" in 12 1/4" hole at 3, 737' with 500 sacks of cement
Set 5 1/2"'in 8 3/4" hole at 11,955' with 1,000 sacks os cement

3. Interval Thickness Recovery
Core (feet) (feet) (feet) Comment
L 11,830-11,848 18 16
2 11,848-11,867 19 19
3 11,867-11,887 20 13 It is probable that the bottom 7 feet of the
interval cut was the portion not recovered,
and that it consisted of anhydrite, as indi-
cated by the Electrical Log and Drilling Time.

General Comment: a) Oil shows were found in 10-15 feet of the rock of the
three cores; but only 2 feet were saturated.











LEE COUNTY (con't)


b) These cores were taken in the lower Sunniland Limestone, which is the 0
productive horizon in the Mobil, No. 1 Barron Collier, Jr. discovery well.

4. DST (11,838-11,888 feet), preliminary report:

Open 10 hours. Water cushions, 1,000 feet
Recovery, 1,166 feet of oil and gas cut water cushion.
Bottom Hole Pressure: MM, 5,960 psi; IF, 630 pstL FF, 630 psi; 151, 3,349 psi: FM, 5,960 pL.

Comment: It appears that the oil recovery on DST of about 1 to 2 BOPD might have been better Z
If the drilling mud had been lighter. This mud had been increased to a drilling weight of 9.4
pounds per gallon, with a viscosity of 42, to improve sample and core quality. For this reason
the hydrostatic mud pressures shown above are unusually large.

5. The operator squeezed off the water zone above the horizon of oil interest, and conducted
the following production test:

Perforated Acidized with Swabbed p

11,852-11,868 feet 1,000 gallons about 1/2 BOPH or at "4
with 32 shots a rate of 12 BOPD

6. Dual Induction-Laterolog, 3, 741 11,955 feet; Borehole Compensated Sanic-Gamma Ray,
3, 740-11, 955 feet.

7. Top Sunniland Limestone: 11,608 feet (.11,568 feet)














POLK COUNTY


Well Fee -Commenced
No. Name C.mnletad


W-8741


Po-32S-27E- 09-105.20001 Sun Oil Co.
19ab


Shepard Mar. 31, '69
Dairy, Inc. Apr. 30, '69


Location: Sec. 19-T32S-R27E (Center of the Northweet quarter of the Northeast quarter of the section, being
660.3 feet from the N3rth line and 1,98L 7 feet from the East line of the section)


Remarks: 1. Plugged and Abandoned

2. Casing Program:
Set 20" in 26" hole at 196' with 250 sacks of cement
Set 13 3/8" in 17 1/2 hole at 540' with 395 sacks of cement
Set 9 5/8" in 12 1/4" hole at 3,089' with 380 sacks of cement

3. DST's: None

4. Chemical or shooting record: None

5. Induction-Electrical Log, 3,090 = 9,669 feet; Borehole Compensated Sonic-Gamma Ray,
3,090-9,670 feet


Locallty
Deienation


API Na.


Operator


Total
Depth
Ifest\


Elevation
If( e,


169 DF


Designation No. ...... ...... e










SANTA ROSA COUNTY


Locality
neirgnation


API No.


Qoerator


WSr-IS-28W-14b 09-113-20003 Anderson


Well Fee
N3. Name


-Commenced
- Completed


FSL 2338 lay 14, '69
June 8, '69


Total
Depth
(feet)


6,871


Location: Sec. 14-TIS-R28W (from corner common to section 12, 13 and 14, go South 29*30' West a distance of 1,337 feet).
This location was on land but adjacent to the State water bottom in East Bay; it satisfied the State drilling lease
well requirement.

Remarks: A. Subsurface record
1. Plugged and abandoned

Z. Casing Program:
8 5/8" in 12" hole at 456' with 250 sacks

3. Induction-electrical log, 462-6870'


4. Tops (IES):

Selma Chalk
Eutour
Marine Shale
Lower Tuscaloosa
Massive Sand


Elevation
(feet) i

12 KB



0
Q


3,974'
5,690'
6,158'
6,548'
6,636'


5. Plugging method:


Bureau of
Geology
Acquisition
No.


No Dehuto. AIN. Oea









INFORMATION CIRCULAR NO. 71


APPENDIX HI
BUREAU OF GEOLOGY CARBONATE CLASSIFICATION









PLORIDA GEOLOGICAL SURVEY CARBONATE CLASSIFICATION

LIMESTONE DOL IT
Original texture not Original Texture Altered OO.""""..
visibly altered ex- Moderately Stron y I
cept by cementation Less than 10% Partially Les than' 10-75% More than 75% Original texture
and compaction. Dolomite Dolomitised 10% Dolo- Grano- Dolomite with obliterated.
Less than 10% mite plastic relic texture. More than 75%
Dolonmite. Dolomite Dolomite.
i ,


Pie grained
carbonate
particles.
Major per-
centage of
carbonate
fraction is
clay and silt
else.


Carbonate faces
10% impurities of
noncarbonate
minerals


Calcilutite


Partially re-
crystallized.
Calcilutite.


Partially
Dolomitized.
Calcilutite.


Crystalline Dolomitic CalcilutiUc

Calcilutite alcilutite Clcolomite


Impure facies 10- Impure Partially
50% impurities of Calcilutite (Marl) Dolomitied
noncarbonate, clay Impure
and silt sized Calcilutite
minerals


Sanoy zacies 4-
50% clastic non-
carbonate sand
asied impurities


nanoy
Calcilutite


Crystalline
Sandy
Calcilutite


Calcarenite
Major per- Carbonate Calcarenite Dolomitic
centage of __ Calcarenite
rock is corn- Impure Impure Impure
posed of Calcarenite Calcarenitic
carbonate Dolomite
particles Sandy Sandy
1/16 to 2 Calcarenite Dolomitic
millimeters Sandy
in size. Calcarenite


alcirudite
Major per-
centage of
sediments
composed
of carbonate
particles
coarser than
2 millimeter
in diameter.


Carbonate


Calcirudite


Crystalline
Calcirudite


Impure Impure Partially
Calcirudite Dolomitized
Calcirudite


sandy,


Sandy
Calirudite


Partially re-
crystallized
Sandy
Calcirudite


Crystalline
Dolomite.
with impure
and sandy.
applied where
appropriate.


'1



0
t2







INFORMATION CIRCULAR NO. 71 45


APPENDIX mI






BUREAU OF GEOLOGY


BUREAU OF GEOLOGY WELL AND LOCALITY DESIGNATION SYSTEM
The locality and well numbering system is based on the location of the
locality or well, and uses the rectangular system of section, township, and range
for identification. The number consists of five parts. These are: 1) a prefix of
three letters designating L for locality or W for well and county abbreviation, 2)
the quarter/quarter location within the section, 3) the section, 4) the township,
and 5) the range.
The basic rectangle is the township which is 6 miles square. It is consecutively
measured by tiers both north and south of the Florida base line-an east-west
line that passes through Tallahassee. This basic rectangle is also consecutively
measured both east and west of the principal meridian-a north-south line that
passes through Tallahassee. In recording the township and range numbers, the T
is left off the township numbers, and the R is left off the range numbers. Each
township is divided equally into 36 square miles called sections, and are
numbered 1 through 36 as shown on the attached diagram.
The sections are divided into quarters with the quarters labeled "a" through
"d" as shown on diagram. In turn, each of these quarters is divided into quarters
with these quarter/quarter squares labeled "a" through "d" in the same manner.
The "a" through "d" designation of quarters may be carried to any extent
deemed useful.
The location of the well WLn-2N-2E-21 db shown on the diagram would be in
the center of the southeast quarter of the northeast quarter of section 21,
township 2 north, range 2 east.
When there is more than one well or locality in a square 40-acre tract
(quarter/quarter section) they are identified by either an additional quarter
designation or by a sixth arbitrary accession number at the end of the range unit.
The abbreviations used for counties are:
Alachua Aa Escambia Es
Baker Bk Flagler Fg
Bay By Franklin Fk
Bradford Bf Gadsden Ga
Brevard By Gilchrist Gr
Broward Bw Glades G1
Calhoun Cn Gulf Gf
Charlotte Ch Hamilton Hm
Citrus Ci Hardee Hd
Clay Cy Hendry Hy
Collier Cr Hernando Hr
Columbia Co Highlands Hi
Dade Dd Hillsborough HI
DeSoto Ds Holmes Ho
Dixie Dx Indian River Ir
Duval Du Jackson Jk






INFORMATION CIRCULAR NO. 71


Jefferson
Lafayette
Lake
Lee
Leon
Levy
Liberty
Madison
Manatee
Marion
Martin
Monroe
Nassau
Okaloosa
Okeechobee
Orange
Osceola
Palm Beach


Jf
Lf
Lk
Le
Ln
Lv
Lb
Md
Mn
Mr
Mt
Mo
Na
Oa
Oe
Or
Os
Pb


Pasco
Pinellas
Polk
Putnam
St. Johns
St. Lucie
Santa Rosa
Sarasota
Seminole
Sumter
Suwannee
Taylor
Union
Volusia
Wakulla
Walton
Washington


Ps
Pi
Po
Pu
Sj
Sl
Sr
Sa
Se
Sm
Sw
Ty
Un
Vo
Wk
W1
Ws





BUREAU OF GEOLOGY


6 5 4 3 2 I

7 8 9 10 11 12

18 17 16 15 14 13

19 20 21 22 23 24

30 29 28 27 26 25

31 32 33 34 35 36

SECTIONIZED TOWNSHIP


a ib
a ------
c I d
c d


c d

Division of a section into
quarters of approx.160
acres and division of a
quarter section into
quarters of approx. 40
acres.


NOTE:
A well in Leon County,Township 2 North,
Range 2 East, Section 21, located in the
center of the southeast quarter of the
northeast quarter would be designated
thus:

WLn-2N-2E-21 db

















































































































4;




Full Text

PAGE 1

STATE OF FLORIDA DEPARTMENT OF NATURAL RESOURCES Randolph Hodges, Executive Director DIVISION OF INTERIOR RESOURCES J.V. Sollohub, Director BUREAU OF GEOLOGY Robert O. Vernon,Chief Information Circular No. 71 OIL AND GAS ACTIVITIES IN FLORIDA, 1969 By Clarence Babcock Prepared by BUREAU OF GEOLOGY DIVISION OF INTERIOR RESOURCES FLORIDA DEPARTMENT OF NATURAL RESOURCES TALLAHASSEE 1971

PAGE 2

3-5)7.0/7 F36i/ o ,71 Completed manuscript received September 1, 1970 Printed by the Florida Department of Natural Resources Division of Interior Resources Bureau of Geology Tallahasseo ii

PAGE 3

CONTENTS Page Acknowledgements ............................................ v Production ........................ .......... ................ 1 Field descriptions and 1969 development drilling ........................ 1 Sunniland field ............................................ 1 Description .................................. .......... 1 Development drilling .................................... 4 Sunoco-Felda field ......................................... 8 Description ........ ................................... 8 Development drilling ................. ................... 8 West Sunoco-Felda field ............ ......................... 8 Description ............... ............................ 8 Development drilling ..................................... 10 Mobil's new field .......................................... 12 Exploratory drilling ......................................... ... 13 Geophysical activity ............................................ 14 Offshore ......................... ........ ... .... ....... 14 Mainland ................................................ 14 Land ..................................................... 14 Water bottom leases ...... ........ ........................... 14 Mainland ..... ............................................. 20 Rules and regulations ................... ........... ......... 20 Bibliography ....................................... ......... 21 Appendices .............................. ........... ........ 23 I. Well Data Sheets, 1969 ...................... ..... .......... 23 II. Bureau of Geology carbonate classification ...................... 43 III. Bureau of Geology well and locality designation system ............. 45 ILLUSTRATIONS Figure Page 1 Florida petroleum exploration and production, 1969 .................. 2 2 Structure map on top of the Sunniland Limestone, Sunniland field, Collier County ..................... ............. .............7 7 3 Structure map on top of the Sunniland Limestone marker, Sunoco-Felda and West Sunoco-Felda fields, Hendry County and Collier County ............ 9 4 Stratigraphic Cross Section A-A', with lithology described from cores, West Sunoco-Felda field, Hendry County ..................... Facing Page 12 5 Stratigraphic Cross Section, with lithology described from cores, Lake Trafford area, Lee County and Collier County ...................... Facing Page 12 6 Florida offshore geophysical permits, 1969 ....................... 16 7 Offshore Florida State Leases, December 31, 1969 .................... 19 lii

PAGE 4

TABLES Table Page 1 Monthly and cumulative pumping production, 1967, 1968 and 1969 from Florida's four oil fields ..................................... 3 2 Salt water production, specified years, from Florida's four oil fields ........ 4 3 Florida development drilling, 1969 .............................. 5 4 Florida exploratory drilling, 1969 .............................. 6 5 Florida offshore geophysical permits, 1969 ........................ 15 6 Florida mainland geophysical activity, 1969 ........................ 17 7 Recapitulation of Florida mainland geophysical activity, 1969, by regional areas of the State ............. .................................. 18

PAGE 5

ACKNOWLEDGEMENTS The writer is indebted to personnel of the Bureau of Geology, Department of Natural Resources, for stimulating discussions, review of manuscript, proof of copy and preparation of illustrations.

PAGE 7

OIL AND GAS ACTIVITIES IN FLORIDA, 1968 By Clarence Babcock PRODUCTION The monthly and cumulative production for 1967, 1968 and 1969 from Florida's four oil fields, all located in Collier County and Hendry County, figure 1, is presented in Table 1. All Florida wells are on pump. The 1969 production from the Sunniland field was 36 percent greater than the 1968 production. This increased oil production primarily reflects the use of submersible pumps in recovery operations during 1969. Table 2 shows the salt water production for Florida's four fields for specified years. The figures for the Sunniland field indicate that the submersible pumps which increased oil production in 1969 did not cause a significant increase in the percentage of salt water production. FIELD DESCRIPTIONS AND 1969 DEVELOPMENT DRILLING Florida's 1969 development drilling is summarized in table 3, which shows that a combined total of 46,772 feet were drilled' in four wells in two established fields. Also, a new field was discovered in 1969; the discovery well is listed in table 4, which summarizes exploratory activity. Each of Florida's fields, as well as the details of the drilling in fields as listed in tables 3 and 4, will be discussed. SUNNILAND FIELD The Sunniland field, discovered in 1943 and operated by the Humble Oil and Refining Company, is located in Collier County. The structure is a northwest-southwest dome 2 miles wide and 4 1/2 miles long, as shown in figure 2. There are 18 producing wells on this structure. Production is from calcareous rock containing disoriented macrofossils (rudistids) reached at a depth of about 11,500 feet. As shown on unpublished cross-sections by Woodson R. Oglesby of the Bureau of Geology, productive zones begin at the top of the Sunniland Limestone and extend to a point about 75 feet lower in the section. The lowermost of the five zones has a bottom water drive.

PAGE 8

2 BUREAU OF GEOLOGY FLOMATON FIELD, Escambia Co.,Ala. Discovered by the HUMBLE, No.1 Wessner. Completed Oct. 15,1968 thru perforations at 15,320'-15,360' in the Norphlet formation with a calculated absolute open flow of 30 mm fgpd with 1,563 bbls.of condensate. POLLARD FIELD, Escambia Co.,Ala. SDiscovered Jan.1952, cumulative production *to Dec.31,1965, 9,348,378 bbls. S-STA "------, ROSA -ENSAW-LAKE FIELD,Baldwin Ala. Discovered by Lee,etal. No.1 Smith well completed Nov.16,1965 in the Paluxy sand. On the initial production tests thru perforations at 8,382-8,387 flowed 20 B.O.P. D.; gr., 160; choke 7/64" SUNOCO-FELDA FIELD Discovered,Oct.9,1964,cumulatie \i production to Dec.31,1969, PL 4,334,567bbls. WEST SUNOCO-FELDA FIELD Discovered, Aug.2,1966,cumulative production to Dec.31,1969,165,744 bbls. MOBIL'S NEW FIELD -FIJL Discovered,Mar.30,1969,cumulative c\ CuLIER i _. production to Dec. 31,1969,21,542 bbis.0 I 0 DE SUNNILAND FIELD i Discovered, Sept.26,1943,cumulative production to Dec.31,1969,11,885,306 bbls. FORTY-MILE BEND FIELD Discovered, Feb. 26,1954; abandoned,Sept. 1955, cumulative production 32,888 bbls. --Rank exploratory wells drilled during 1969 I plugged and abandoned I NOTE: Development and exploratory drilling in 1969 is shown in Tables 3 and 4. Data sheets for each well drilled are shown in Appendix 1. Figure 1. Florida petroleum exploration and production, 1969.

PAGE 9

Table 1. Monthly and Cumulative Pumping Production in Barrels, 1967, 1968, and 1969 from the Four Oil Fields of (Southern) Florida. Mobil's New Sun's Sun's Field Humble's Sunoco Felda Field West Collier Sunniland Field Hendry and Sunoco-Felda Field County Collier County Collier Counties Hendry County (discovered (discovered in 1943) (discovered in 1964) (discovered in 1966) Mar. 30, 1969) 1967 1968 1969 1967 1968 1969 1967 1968 1969 1969 Month (16 Wells) (16 Wells) (18 Wells) (25 Wells) (23 Wells) (22 Wells) (1 Well) (3 Wells) (5 Wells) (1 Well) January 56,138 42,592 58,259 88,583, 73,259 67,443 880 735 4,997 February 48,766 39,142 51,638 79,428 68,847 60,850 649 774 4,402 March 53,733 44,203 67,935 87,202 74,863 65,385 903 674 4,364 0 April 50,845 43,211 71,236 85,565 75,144 64,247 849 611 4,816 1,497 May 50,394 46,761 75,445 86,079 74,504 63,897 854 617 4,846 2,874 June 50,276 47 026 73,589 83,143 73,304 65,112 889 587 4,786 2,665 July 50,439 47,789 73,254 86,412 76,611 68,253 852 575 9,765 553 August 49,196 47,885 64,000 80,120 75,341 66,878 875 1,147 13,176 September 44,525 46,070 66,194 77,556 74,681 61,314 880 3,602 13,018 3,344 October 47,569 61,032 59,602 77,629 71,643 70,339 839 3,572 14,060 3,843 November 42,780 60,793 61,300 72,874 66,280 67,060 643 3,286 25,795 3,383 z December 40,713 54,951 68,141 68,423 66,871 71,417 680 5,502 25,130 3,383 est. 0 585,374 581,455 790,593 973,014 871,348 792,195 9,793 21,682 129,155 21,542 est. Cumulative Dec. 31, Previous Year 9,927,884 10,513,258 11,094,713 1,698,010 2,671,024 3,542,372 5,114 14,907 36,589 Cumulative Dec. 31 Respective Years 10,513.258 11,094,713 11.885,306 2,671,024 3.542.372 4.334,567 14,907 36,589 165,744 21,542 est.

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4 BUREAU OF GEOLOGY Table 2. Salt water Production in Barrels, Specified Years, from the Four Oil Fields of (Southern) Florida. Salt Percent Water of Total Field Year Production Fluid Yield Sunniland 1967 1,646,215 74% 1968 1,693,749 74% 1969 2,301,566 75% Sunoco-Felda 1969 1,108,394 58% West Sunoco-Felda 1969 172,355 57% Mobil's New Field 1969 12,183 est. 36%* Following cement "squeezing" operations in the latter part of 1969, Mobil's new one-well field now makes only about 0.2 of 1 percent salt water. Yields from the better wells in the field range from about 130 to 400 BOPD (barrels of oil per day). The oil has a gravity of 19 to 26 degrees API (American Petroleum Institute). Salt water produced in the field is injected into the "Boulder Zone" through two disposal wells. The interval used for disposal is very permeable, contains very saline formation water, and occurs between 2,960 feet and 3,020 feet in the No. 8 GCRC (Gulf Coast Realties Corporation) disposal well, and 2,830 feet and 3,300 feet in the No. 14 GCRC disposal well. At this time it is thought that 35 million barrels of oil probably is a reasonable figure for the initially recoverable reserves of the field. DEVELOPMENT DRILLING Two wells producing from the upper Sunniland Limestone were completed by the Humble Oil and Refining Company in the Sunniland field in 1969. These wells were: No. 26 Gulf Coast Realties Corporation No. 27 Gulf Coast Realties Corporation The top of the Sunniland Limestone in these wells is contoured in figure 2; Well Data Sheets for the wells are included in appendix 1. The No. 26 Gulf Coast Realties Corporation well had an initial production of 36 BOPD with 269 BWPD (barrels of water per day) from zone D; perforations

PAGE 11

Table 3. Development Drilling Completed in Florida, January 1,1969 -December 31, 1969 (Total Field Footage, 46, 772 feet) Initial Production Test from upper Sunniland Well Name Total Depth (feet) Limestone (all with conventional pump) (A) Sunniland field (Collier County) Humble, No. 26 GCRC* 11,711 Zone D: 36 BOPD* with 269 BWPD*; perforations, 11,598-604 feet. Recompleted in zone C for 242 BOPD with 103 BWPD; perfs. 11,573-584 feet Humble, No. 27 GCRC 11700 Zone D or zone C: 40 BOPD with 293 BWPD; perforations, 11,588-600 feet Total, Sunniland field 23,411 (B) West Sunoco-Felda field (Hendry County) Sun, No. 28-3 Lee-Cypress "A" 11,675 Interval "C"t: 297 BOPD with 14 BWPD; perforations, 11,456-466 feet -J Sun, No. 33-2 Red Cattle "B" 11,686 Interval "C": 408 BOPD with 12 BWPD; perforations, 11,464-472 feet Total, Sunoco-Felda field 23.361 TOTAL 46,772 Abbreviations: GCRC is Gulf Coast Realties Corporation; BOPD is barrels of oil per day; and BWPD is barrels of water per day. t Interval "C" of these wells is the approximate stratigraphic equivalent of zone C of the Sunniland field. LA

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Table 4. Exploratory Drilling Completed in Florida, January 1, 1969. December 31, 1969 (Total Exploratory Footage, 40,488 feet, plus the footage in three confidential wells) Total Depth County Well (feet) Comment (A) New-field discovery wildcat Collier Mobil, No. 1 Collier Jr. 11,987 Lower Sunniland Limestone discovery IP* 118 BOPD* with 78 BWPD* through perforations, 11,870-892 feet (B) Dry new-field wildcat Duval Durham, No. 1 Gilman -Confidential to Aug. 15, 1970 Duval Durham, No. 1-B Gilman -Confidential to Aug. 15, 1970 t Duval Durham, No. 1 Monticello -Confidential to June 19, 1970 Lee Mobil, No. 1 Sanders 11,960 Swabbed 1/2 BOPH*; P and A* Polk Sun, No. 1 Shepard 9,670 Confidential to May 5, 1970 Santa Rosa Anderson, No. 1 FSL* 2338 6,871 Drilled on land to hold State water bottom lease in East Bay TOTAL 40,488+ These classifications are after Lahee, Frederick H. (AAPG, 1944, v. 28, table 1, p. 709). Abbreviations: IP is Initial Production; BOPD is barrels of oil per day; BWPD is barrels of water per day; BOPH is barrels of oil per hour; P and A is plugged and abandoned; and FSL is Florida State Lease.

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R 29 El setion 1 Section7 R 30 E S111ion 15e i -6..._5-.. 1,631 LOCATION \6 5 SUNNILAND % ,,D5-' FIE(LD (11 •661 EXPLANATION ,56 .114 1 969 Completions: Well No.26, initial production .\,oC ) \\ (Upper C zone) \-G --j -II}3 G.C 40 BOPD /293BWPD .. 9 1 1. 5 7./ Well No.2, initial production -1 -0G T-,541 ) New producing well se-ionn\ / (Camplet e 1962-1968,incl.) /'?S z 15 Old producing well ,deepened. Se 3c io Section 05 9-' (Re-completedi0 71963) 1 0 .Abandoned producer -...,A.24 G1 & o/ I20 / -Plugged and ab ndoned (initially) -gSWDConverted to disposal well o0 Well number -11,558 Datum below sea level Contour interval 10 Feet Figure 2. Structure map on top of the Sunniland Limestone, Sunniland field, Collier County,

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8 BUREAU OF GEOLOGY originally known as the No. 1-"B" Red Cattle Company wells. In 1968 two additional producers, which on initial production tests yielded a combined total of 187 BOPD with 249 BWPD, were completed as offsets to the discovery wells. Also in 1968 a dry hole was drilled which defined the. limit of the field to the north. In each of the first three producing wells in the West Sunoco-Felda field, the Roberts zone as described in the section of this report dealing with the original Sunoco-Felda field is the productive interval. In 1969, Board of Conservation Order No. 8 recognized that there was no connection between the oil accumulation in the West Sunoco-Felda field and the Sunoco-Felda field proper, except the common water drive of the area. Figure 3 shows these two fields to be separated by a distance of 3 miles; it also shows two plugged and abandoned wells which are structurally high, and which are located between the two fields. These intervening wells produced large quantities of salt water on DSTs (drill stem tests) of the Roberts pay zone, as follows: Well Drill Stem Test Results Sun Oil Co., Interval: 11,481-491 feet No. 26-1 LeeChokes: 5/8 and 1/4 inch Cypress Tool Open: 4 hours Recovery: 6,175 feet of salt water plus 300 feet of very slightly oil-cut fresh water Pressures: Flowing, 1,500 psi; Shut-in, 4,600 psi Commonwealth Interval: 11,410-483 feet and Gulf Coast, et al Recovery: 5 feet of heavy oil and 2,300 feet No. 1 Red of salt water Cattle Co. In the Sun, No. 26-1 Lee-Cypress well the "pay" zone consists of soft limestone which appears to have the porosity characteristics of a classic chalk. The subject section is fairly soft also in the Commonwealth Oil Company and Gulf Coast Drilling and Exploration Company, No. 1 Red Cattle Company well. The porosity of chalk is extremely good, but the pore spaces are minute. Such rocks may contain water, but act as a barrier to oil migration. DEVELOPMENT DRILLING Drilling in 1969 in the West Sunoco-Felda field consisted of two offset wells, both located in the Southern part of the field. Both of these tests were completed as far better producers than previous field wells. The wells are:

PAGE 15

( "\ WESTSUNOCO HUMBLE No.1, \ \ FELDA FIELD-, -SUNOCO FELDA FIELD Lehi h Acres Devel.,Inc\ -R_29E 27t co 14 s Waiting for further testing 1' /T .e / ommenced May 5,1969 21 Temp.Abd. Aug.29,1969 Ui --\ \ \ 5 -, Proposed depth 16,000'-7 D c5, I l69 .-'se s3 1s 2o 0t s2 V Actual T.D. 15,710' 1/.. W 19" 4 l Wat for further tu ellot y determined N.-1 .W L MC Plugged and abandoned Dry hole cnverted to salt water R 9 E SWell drilling,coring or testing Dy hole converted to fresh water njection Iec.31, 9 /4389 3.4.90 35O T3 a 33 X Permitted location,-(Oct.28,1969) Date of permit well to maintain field pressure INITIAL PRODUCTION (IP) tFW Abandoned producer converted to fresh water () I.P of 300-427 BOPD injection well to maintain field pressure SI.Rof 1-00-300BOPD COilpermeability barrier LOCATION ARE SI.R of 5-100 BOPD 5 Figure 3. Structure map on top of the Sunniland Limestone marker, Sunoco-Felda and West Sunoco-Felda fields, Hendry County and Collier County.

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10 BUREAU OF GEOLOGY were at 11,598-604 feet. The well was recompleted in zone C with an initial production of 242 BOPD with 103 BWPD; perforations were at 11,573-584 feet. Both of the productive zones are in the upper part of the Sunniland Limestone. This well was one foot high to the No. 6 Gulf Coast Realties Corporation producer, located 1,700 feet to the northeast. The No. 6 well has produced almost 2 million barrels of oil, and during October, 1969, its production averaged 136 BOPD with 150 BWPD. The No. 27 Gulf Coast Realties Corporation well had an initial production of 40 BOPD with 293 BWPD. Electric log correlations reveal that the productive interval is either zone C or zone D; perforations are at 11,588-600 feet. SUNOCO-FELDA FIELD In 1964 the Sun Oil Company discovered the Sunoco-Felda field, located mainly in Hendry County, with the southern edge extending into Collier County. This field is 18 miles north of the Sunniland field. Structural nosing associated with a decrease of oil permeability in upgradient directions is the trapping mechanism in the Sunoco-Felda field, figure 3. There are 22 producing wells drilled on 160-acre spacing on this structure. The limits of the field in all directions have been defined by 11 dry holes of which 7 were offset locations, and 4 were outposts; also, 2 edge wells which were marginal producers have been abandoned as oil wells. Production is from the Roberts zone of the upper Sunniland Limestone. The top of the Roberts zone is reached at depths ranging from about 11,460 feet to 11,488 feet; this zone is correlative with zone D of the Sunniland field. Babcock (1964, fig. 4 and fig. 5) shows that in wells in the Sunoco-Felda area the Roberts zone is 17-20 feet thick and consists of very soft to moderately soft microfossiliferous (miliolitic) calcarenite. It is overlain by some 10 feet of impermeable calcilutite or shaly calcilutite; and the calcilutite is overlain by a calcareous interval which yields water when drill stem tested. Yields from the better wells in the field range from about 200 to 320 BOPD; the gravity of the oil is about 24.5 degrees API. Pressure maintenance for the field is implemented by one salt water injection well, and three fresh water injection wells (fig. 3). DEVELOPMENT DRILLING There was no drilling in the Sunoco-Felda field in 1969. WEST SUNOCO-FELDA FIELD In 1966 the first test drilled in this field was completed as a commercially marginal producer; this was the Sun, No. 21-3 Red Cattle Company "B" well,

PAGE 17

INFORMATION CIRCULAR NO. 71 11 Sun, No. 28-3 Lee-Cypress "A" Sun, No. 33-2 Red Cattle Company "B" Core descriptions, electrical logs, drill stem tests and initial production tests on these wells are depicted on Stratigraphic Cross Section A-A', figure 4; the top of the Sunniland Limestone marker is contoured on figure 3; and Well Data Sheets for the wells are included in appendix 1. Cores of these 1969 completions, as depicted in Stratigraphic Cross Section A-A', contained saturation not only in the Roberts zone proper, which was described previously in this report, but also in an immediately overlying interval which produced water in wells of the original Sunoco-Felda field. Where water bearing, the subject interval consists of dense, chalky calcilutite; circumstances suggest that these rocks are impermeable to oil. The Roberts zone is the stratigraphic equivalent of zone D of the Sunniland field. And, the upper part of the interval of saturation in the West Sunoco-Felda wells completed in 1969 (fig. 4) has been informally referred to as interval "C", to indicate its approximate stratigraphic equivalency with zone C of the Sunniland field, where the "pay" is a discrete unit of saturated porosity separated by hard rock from underlying and overlying productive units. However, in the No. 28-3 well, of the West Sunoco-Felda field, the calcilutite between the upper interval (so-called interval "C") and the lower interval (restricted Roberts zone) contains slight vuggy porosity in moderately hard chalky calcilutite, and is only 4 feet thick; this could well be insufficient to serve as a vertical oil-permeability barrier between the intervals of saturation. It is probable that pressures in the No. 28-3 well above and below the hard calcilutite are very interdependent. Certainly in the No. 33-2 offset well to the south the entire section of saturation consists of soft calcarenite with excellent vuggy and intercrystalline porosity; there is no rock which could serve as a vertical oil-permeability barrier anywhere within this section. Therefore, the entire section of saturated rock in the No. 33-2 well forms a single pool, and the interval of saturation represents a thickening of the Roberts zone, rather than two separate zones. The oil accumulation in the West Sunoco-Felda field is not part of the Roberts pool of the Sunoco-Felda field proper, since the two fields are separated by a barrier to east-west oil migration (fig. 3). However, the two oil accumulations are interdependent to some extent, since they have a common water drive, as discussed under "West Sunoco-Felda Field-Description." Two additional offset wells located in the southern part of the West Sunoco-Felda field (fig 3) were not completed as of the end of the report period, and hence are not listed in the development drilling tabulation, table 3. The Humble, No. 32-1 Lee-Cypress "A" wells, which probably will be a good producer from the upper part of the Roberts zone which is productive in the Sun, No. 28-3 Lee-Cypress "A" well, was testing the Sunniland Limestone on

PAGE 18

12 BUREAU OF GEOLOGY December 31, 1969. Also, the Sun, No. 33-3 Red Cattle Company "B" well was coring the Sunniland Limestone on this date. There are as yet undrilled permits issued to Sun for two other wells to be located in the southern part of the field. These tests will be designated the No. 29-4 Red Cattle Company "B" well, located in the southeast quarter of Section 29, and No. 28-4 Lee-Cypress "A" well, located in the southeast quarter of Section 28. MOBIL'S NEW FIELD The Mobil Oil Corporation, No. 1 Barren Collier, Jr., well was completed March 30, 1969, as a discovery well for a new field. As yet a confirmation test has not been drilled in this field; also, the field had not been officially named as of the end of the report period. The discovery well is located in Section 9, Township 47 South, Range 28 East; the survey is 1,980 feet from the south and east lines of the section. This is in the Lake Trafford area, Collier County. On the Initial Production Test, after acidation with 2,500 gallons, this well yielded 118 BOPD, with 78 BWPD from perforations at 11,870-892 feet; the pump was set below 11,000 feet. Subsequently, up-hole water was "squeezed off" with cement, and the well was re-acidized. Testing over the past several months indicates that the stabilized production will be about 100-115 BOPD with 0.2 of 1 percent water. The Stratigraphic Cross Section of figure 5 presents core descriptions, electrical logs, and formation fluid and pressure tests for wells in the Lake Trafford area. This section includes the Mobil discovery well and two other wells which have been plugged and abandoned. Well Data Sheets for the discovery well are included in appendix 1. The productive interval in the discovery well is the lower Sunniland Limestone of Lower Cretaceous Trinity Age, whereas the other fields in Florida produce from the upper Sunniland Limestone. As depicted on the Stratigraphic Cross Section, the minor and uppermost part of the productive interval is hard calcilutite described as "vitiated rock;" cores were not available for the remainder of the productive interval. The fine-textured "vitiated rock" examined does not appear "rotten", and does not consist of Orbitolina rubble. However, the rock is rather easily flaked off inward toward porous spaces, and it is especially susceptible to fracture along occasional lines of weakness by a needle-point used in examing the rock. The electrical log, and correlations on the Stratigraphic Cross Section, indicate that in the discovery well the zone of permeability, for most of which cores are not available, could be 10 to 15 feet thick. Cores from the Mobil, No. 1 Sanders well of the cross section revealed only some 2 feet of permeability in the zone of

PAGE 19

1969 COMPLETION 1969 COMPLETION W-7804 W-8609 W-8758 W-10324 A Sun Oil Company Sun Oil Company Sun Oil Company Sun Oil Company No-21-3 Red Cottle"B" 2/3 mi. No.28-1 Lee Cypress 34 mi. No.28-3 Lee Cypress "A" < mi. No.33-2 Red Cattle "B" Sec.21-T 45S-R28E Sec.28-T45 S-R 28 E Sec. 28-T45 SR 28 E Sec. 33-T45S-R28 E EtreL48 D.E TD.11,675'Drlr. Elev.48'D.F T.D. I,509'Drir. Elev.48' D.F. T.D.ll,676'Drlr. Elev.47' D.F T.D. 11,685'Drir. S11,681 Sch. 1II,522' SchI. II,686 Sch. S> TOP LAKE TRAFFORD F 11,678' Sch. -C ICAL INDUC ION ECCOS RC SSP ELECT ICAL -TOP SUNNILAND 5-'--~______ _------_.____ LIMESTONE MARKER-, __ _______ -~ ~_______ 0 --Bown ______ -SRoberts Zone Porosity lo iucrasic MO SoT B .e Orbit. I. -ES G r a -Zon "ESTRu ididd DST T E20 _., Orbit. Chalky a lac Drill Stem Test at 11,470-479 feet (corrected depth, 11,483-492 -_ Or a :feet). Chokes,ond34 inch. Cushion,2,000 feet. Tool open 4 hours. Recovery was 3,000 feet of sweet gas, 254 feet of clean oil, 1,800 ? ~---=_ t TOP feet of oil cut with gas and fresh water, 218 feet of fresh water,and -PUNTA GORDA 3,312feet of salt water,with a trace of oil and gas (114,000 ppm).) E_ Hydrostatic pressure, 5221 psi. Bottom hole pressures, flowing, "_ -____ Orbit. 1,789 and 3,234 psi; closed-in, 4,931 and 4,736 psi. Sern Test at H,479-486 feet (corrected depth, -2 feet). Chokes, andYinch. Working pressure, Initial Production Test through perforations at 11,486-489 feet, Initial Production Test through(un-acidized) Initial Production Test through(un-acidized) :curds. TaaE apen 4 hours. Recovery was 2,000 feet after ocidation with 500 gallons: 105 BOPD with 88 BWPD perforations at 11,456-466 feet296 BOPD with perforations at 11,464-472feet: 408 BOPD -aue cushicn, 3,000 feet of gas, 1,540 feet of oil,and (45.6%). Gravity, 25.2 degrees API.GOR,70 to I. Pump data: 14 BWPD (4.5%). Gravity,26.3 degrees, API. GOR, with 12 BWPD(2.9%). Gravity, 25.6 degrees, : feet cf Gil-cut salt water (Ci, 130,000 ppm). working barrel, Ia inch; 9) 100-inch strokes per minute. 150 to I,estimated. Pump data: working barrel, API. GOR, 498 to I (daily gas volume,203mcfl : --n cle pressures,flawing,t,038 and 3,227 psiclosedLITHOLOGY DESCRIBED FROM CORES inch; 13 100-inch strokesper minute. Pump data: working barrel, 2 inch; 12 100:-052 osi: LITHOLOGY DESCRIBED FROM CORES ...... -_ inch strokes per minute. LIMpsTO infh strokes per minute. LIMESTONE + ZSE -i Praduction Test through perforations at 11,486-489 Calcarenite Colcilutite LOCATION -Datum and after acidation with 500 gallons: 56 BOPD with [I) Moderately soft --o-11,380o -W=8609 JW-875 -EWPD 73%) Gravity,~ 24-6 degrees API. GOR, 90to .L L-Hard Ei Shaly -8) S a wtascking barrel, lzinch; 10 100-inch strokes per T -4i9 7 04 W ,J.^ * DOLOMITE ANHYDRITE ----1"3909 780 OIL SHOWS POROSITY t '9 ,9 o -7804 (-11393) (SHeavily saturated V Large vuggy -609 Alt Tops aa this Cross Section were determined Saturated v Small vuggy Producer w 30 29 58 Vertically Exaggerated Sketch from good Gamma Ray Correlations. o Stained z.7 Inter-crystalline W Abandoned 032 Structural Top of the d Much asphalt -p Pinpoint producer J R C Sunniland Limestone Marker --R-28 E Figure 4. Stratigraphic Cross Section A-A', with lithology described from cores, West Sunoco-Felda field, Hendry County.

PAGE 20

1969 FAILURE.W-8745 1969 DISCOVERY WELLW-8748 1948 FAILURE W-1883 LITHOLOGY DESCRIBD FROM CR !OBi6L OIL CORFORATION MOBIL OIL CORPORATION HUMBLE OIL0 nd REFINING CO1.IMESTONE No1I Henry Sanders,Trustee No.I Barron Collier, Jr. No.I Gulf Coast Realties Corporation C Calcorenite Caciiute Sect.35-T46S-R27E Sect.9-T47S-R28E .-2Miles--Sect.21-147S-R28E oft ; T. D. II 960' Drl.4.25 Miles D.F.39 T.D. II980'Drlr. 2E les 37 T.D. 2,120'DrIr. CI--Hord [if5 Schl. 5 Sch. I TOP LAKE TRAFFORD FM 11987 Sch. V D Sn, Dolomit e An I! i 4 :l i \ £ i .-" v. POROSITY TOP SUNNILAND v Vuggy _____ LIMESTONE MARKERp Pinpoin Id Ton --' SBrown Wht OIL SHOWS SPatiollyredGray --* Heavily saturated crysllized --Milo Saturated S.----Stained and bleedingoi ---S o Stained d Brown Much asphalt S : " -.: d Asphalt S'P r-t TOrrbit L -TOP PUNTA GORDA it I B own _A-:iNHYDRITE -iti ted k T-Re.xzd .COLLER rCo. -.S -' ^---= • ^ ^ ^ -fIcored Ls. ""T-::----e' -m-l' LOCATION .6i S~S'eet, Water cushion, 1000 feet. Open DST( I,837-886feet corrected dept 1844-893 feet). Hoe size 8". Mud weight8.3 bs,water.Temp.,80F. -; .RZ 7E E E -:jvery was 1,166 feet of oil and gas-cut Water cushion, 1000. Chokes, and. Tool initially open 15 minutes, bubble started in I minutes. SAL xn. .-. _us rT om hole pressures were IHM Tool closed in30minutes foriniol closed-in pressure.Tool re-opened 240 minutesIgood blow with r -1.575 :.;S .si; FF 630psi; IS13349 psit pressure increasing steadily. Recovery from the combined 15-min.and 240-min.periods was 1000'of M n Ton psi water cushion,l,900of gos-cut oil,and 556'ofoil-cutfresh water. Bottom hole pressuresinpsi,upper .S.(ll.918-938,feet .Recovery in 28 hours was 66 of 6f-\( qhort (top of tool at l1,816')were: oil, nd I50 of oil-cutmud. -:;TEST FIRST(15-MINUTE) INTERVAL SECOND (240-MINUTE) INTERVA QS ( 11,906-950feet). Recovery in 36 hours was 2,325' r .aiT IHM 5469 FF 1752 IHM5428 FF 1733 ofoil and528'ofoil-ut mud. (-1 'r-rat Acidized Swabbed ICI 5440 'FCI 5386 ICI 5411 FCI 5419 -no? S ,000 gans about l2 brrel IF 1050 FH 5469 IF 1017 FHM5378 SI(11,906-95feet).Af acidation with 2,500 gols. ericll Exaerted S2 s. of oil per hour. I PTESTThru perforotions at 1,870-892 feet ielded il with 78 8WPD(40%). Corrected Qrovity pef ope hole u-94feet recovery was erticualy r was25.6*API. Pump specificotions: orkingbarrel, l1" number of strokes per minte, 1x 4,320 oil-utmud, oin2,790'of solt woter. Structural Top ofte length of stroke, 120.:nd Li Figua 5. Stratigraphic Cross Section, with lithology described from cores, Lake Trafford area, SLee County and Collier Couty..

PAGE 21

INFORMATION CIRCULAR NO. 71 13 saturation. It is understood that permeability in the lower Sunniland Limestone was developed by boring organisms on a mud flat. The interval between the top of the zone of saturation and the Punta Gorda Anhydrite was about 15 feet thick in the discovery well, and only 2 feet thick in the No. 1 Sanders failure. EXPLORATION EXPLORATORY DRILLING Table 4, which summarizes exploratory activity, shows that during the report period 40,888 feet were drilled in four exploratory tests, one of which resulted in the discovery by the Mobil Oil Corporation of the new field discussed in the immediately preceeding part of this report. Information on three other wells listed on table 4, and drilled in Duval County, northeastern Florida, will remain confidential at the request of the operator until the middle of 1970. Also, the Humble Oil and Refining Company, No. 1 Lehigh Acres Development, Incorporated well was not completed as of the end of the report period, and hence it is not listed in table 4. Drilling operations on this proposed 16,000-foot Jurassic test were commenced on May 22, 1969, and the well was temporarily abandoned August 28, 1969 at a depth of 15,710 feet, after reportedly reaching "basement" rock. This is the deepest any well has been drilled in Florida. A rumored show in the Sunniland Limestone of the Lehigh Acres well had not been production tested as of the date of this report. The Lehigh Acres well is located about 4 miles west of the West Sunoco-Felda field, and in Section 14, Township 45 South, Range 27 East, Lee County; the survey is 1,302.5 feet from the west line and 1,661.3 feet from the north line of the section. There is a probable embayment between this well and the West Sunoco-Felda field, as indicated by subsurface control in the field (fig. 3). Another exploratory location, as yet undrilled though permitted on December 2, 1969, is not included in table 4, which lists only completed wildcat tests. This test will be the Triton Oil and Gas Corporation, No. 1 University of Miami well; the permitted location is: Section 15-T45S-R34E Survey: 660 feet east and about 433 feet north of the section lines This places the location 4 1/2 miles west of the RK Petroleum Corporation, No. 2 Florida State Lease 1939-1939 S well, which was plugged and abandoned in 1968 as the westernmost well in the Forty Mile Bend area. The RK No. 2 well contained thin sections of fair to good shows in both the upper and lower Sunniland Limestone; but, the entire Sunniland Limestone section was very tight.

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14 BUREAU OF GEOLOGY The proposed depth of the Triton Oil and Gas Corporation well is 12,500 feet. This depth should reach the Brown Dolomite section, which Banks (1964, fig. I) reveals to have excellent porosity in a section about 100 feet thick in wells along the southwestern coast of Florida. The Brown Dolomite is the upper part of the "C-D" hoffatella decipiens) zone, which is about 1,700 feet thick; and, Banks records (table 1) that the "C-D" zone in 8 wells of central and southwestern Florida has contained 16 minor hydrocarbon manifestations and 1 possible manifestation. GEOPHYSICAL ACTIVITY OFFSHORE The 1969 geophysical permits in State and Federal water bottoms offshore from Florida are summarized in table 5; locations of the permits are shown on figure 6. These presentations show that in 1969 there were 8 permits for offshore geophysical activity; and one permit to test the use of explosive charges to excavate cavities for footings for the anchors of oil well drilling barges. Of the geophysical permits, 7 were for work to be performed on State and Federal water bottoms west and south of Florida; and one permit was for a seismic survey of Federal acreage offshore from the Florida east coast. The number of offshore permits for each of the previous six years has been 5 in 1963, 7 in 1964, 10 in 1965, 13 in 1966, 23 in 1967, and 19 in 1968. MAINLAND Details of Florida's mainland geophysical activity, 1969, which totalled 236 crew weeks, are presented in table 6. Table 7 is a recapitulation of this activity by regional areas within the State. LAND WATER BOTTOM LEASES Figure 7 shows the locations, and a tabulation of lease information, for Florida's two current offshore leases. The mineral rights of both of these leases, containing a combined total of 3,910,460 acres, are held by the Coastal Petroleum Company, and the annual rental received by the State from the leases is $49,614.40. Also, Coastal holds State Mineral Lease No. 248 on 11 lake bottoms of Florida containing a combined total of 660,736 acres, including Lake Okeechobee, with 467,200 acres. The annual rental on this lease is $19,985.92.

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Table 5. Florida Offshore Geophysical Permits, 1969 (permit locations plotted on figure 6) 1969 Permit Estimated Term (Date) Permittee (Client) (Extension) Comment 80 (Jan. 6) Delta Exploration Jan. 1-Mar. 1, 1969 Vibroseis 81 (Feb. 3) Western Geophysical Feb. 4-May 4, 1969 a. Gas gun reflection, seismic b. Completed Mar. 18, 1969 82 (May 13) Exploration Surveys, Inc. May 15-Aug. 15, 1969 a. Planned commencement: June 3, 1969 b. Initial 5,000 miles (single ship) gravity and magnetic survey, completed July 31, 1969 82a University of Wisconsin June 19-June 25, 1969 a. World's first controlled experiment to examine Texas Tech. rocks underlying ocean basin Southwest Center for b. Refraction, to penetrate crust to depths of 250 miles 3 Advanced Studies Maximum charge, 1 ton 0 c. Lines start on the high plateau of Mexico, and extend to central Florida; all shots in international waters 83 (May 27) Shell Oil Co. June 14-Dec. 3, 1969 Hydrosein and gas gun seismic (to Mar. 2, 1970) 84 (Aug. 19) Gearhart-Owens Aug. 25-Sept. 5, 1969 a. To test use of explosive charges for excavation of cavities to depths of up to 50 ft. for "footings" for the anchors of oil ell drilling barges 85 Shell Oil Co. Nov. 11-Dec. 24, 1969 Air Gun seismic 0 86 Texaco, Inc. Dec. 3, 1969-June 3, 1970 Non-explosion reflection :a 871 Mobil Oil Corp. Nov. 21-Dec. 5, 1969 Seismic using compressed air 1 This permit authorized two single seismic lines. It is not the policy of the Bureau of Geology to describe the location of single lines by plotting on a map such as figure 6, but rather in general terms, as follows: Offshore Seismic Lines Length Waters SE (Southeastward) or Permit (miles) Surveyed NW (Northwestward) from: 87 (2 lines) 53 State and Federal SE: Marquesas Keys-Tortugas 128 Federal NW: Cay Sal

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-, -' -* 1 O -.' lot -.--. ----o -0 ---. iV ,.os s 0 I --I " '\ I \ .. 4. -* 1 |, 65' -| ei Figure 6. Florida offshore geophysical perits, 1969.osGun 85 un ismagtic 86 on-Exptlosion Refliction sTFor del Isf the rmis aoted's TWblO 150 13 100 I le Figure 6. Florida offshore geophysical pennits, 1969.

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INFORMATION CIRCULAR NO. 71 17 Table 6. Florida Mainland Geophysical Activity, 1969 -236 Crew WeeksCrew Weeks per CompanyCounty Total Company Contractor Type Escambia 45 1/2 15 Chevron-Self 6 Delta Exploration-Self 1 Getty-Teledyne 4 1/2' Humble-Self Reflection 7 1/2 Humble-Ray Geophy Co. 6 Phillips-Self 5 1/2 Superior-Self 5 1/2 Superior-Self Collier 9 3 Chevron-Self 6 Phillips ? Collier, 43 43 Mobil (Type and location: one-man Lee, gravity and magnetics crew, Hendry with most of activity in or near Sunniland field, of Collier County, or just southwest thereof) Gadsden 1/2 1/2 Pan Am-Teledyne Vibroseis Hendry 4 4 Chevron-Self Highlands 2 2 Shell Jefferson 1 1 Pan Am-Teledyne Vibroseis Lafayette 2 2 Pan Am-Teledyne Vibroseis Leon 1 1/2 1 1/2 Pan Am-Teledyne Vibroseis Nassau 3 3 Pan Am-Teledyne Vibroseis Okaloosa 5 1/2 1/2 Phillips-Self 3 Texaco-Self 2 Sun-Self Okeechobee 12 12 Shell Orange 10 10 Texaco-Self Santa Rosa 92 .7 Delta Exploration-Self 30 Humble-Self Reflection 12 LL and E-GSI Vibroseis 11 Phillips-Self 2 Sun 30 Texaco-Self Seminole 2 2 Texaco-Self Taylor 1 1 Pan Am-Teledyne Vibroseis Union 1 1 Pan Am-Teledyne Vibroseis Walton 1 1 Phillips-Self TOTAL 236 crew weeks

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18 BUREAU OF GEOLOGY Table 7. Recapitulation of Florida Mainland Geophysical Activity, 1969, by Regional Areas of the State Area Crew Weeks Northwestern Florida Florida Panhandle Escambia County 45 1/2 Okaloosa County 4 1/2 Santa Rosa County 92 Walton County 1 Total, Florida Panhandle 144 Big Bend Area Gadsden County 1/2 Jefferson County 1 Lafayette County 2 Leon County 1 1/2 Taylor County 1 Total, Big Bend 6 Total, Northwestern Florida 150 Northern Peninsular Florida Nassau County 3 Union County 1 Total, Northern Peninsular Florida 4 Central Florida Highlands County 2 Okeechobee County 12 Orange County 10 Seminole County 2 Total, Central Florida 26 Southern Florida Collier County 9 Collier, Lee and Hendry counties 43 Hendry County 4 Total, Southern Florida 56 GRAND TOTAL, Florida Mainland 236

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INFORMATION CIRCULAR NO. 71 19 .6/ .4, -~ 'W4 Department o .. \ s i G Department of Defense, the State leasing restriction of 1963 was renewed in March,1967. L Is 'Company t 'a *an .o any C 1 --Lease Acres Rental Pro uction Coastal Pet.Co 224-A 1,936,100 $22,566.40 one-eighth i 224-B 1,974.360 $27,048.00 one-eighth Total 3,910,460 $49,614.40 Lease outlines are approximate Figue .Ore 7. Offshore Florida State Leases, December 31, 1969.

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20 BUREAU OF GEOLOGY In a Federal Court case which commenced October 20, 1969, and lasted three days, Coastal brought suit against the U.S. Corps of Engineers, the Trustees of the Internal Improvement Fund, and the Central and Southern Florida Flood Control District. Coastal maintained that the defendants had illegally denied the company the right to mine limerock from Lake Okeechobee under the terms of its lease. As of December 31, 1969, the opinion in this case had not been rendered, but was anticipated in the near future. MAINLAND Current figures on land acres leased on the Florida mainland are not available to this office. In 1965, however, these figures totaled 3,075,219 acres. RULES AND REGULATIONS Order No. 8 was adopted and promulgated by the Florida Board of Conservation (later known as the Department of Natural Resources) on April 29, 1969. This order recognized that there is no connection between the oil accumulation in the western part of the Sunoco-Felda area, and the Sunoco-Felda field proper, except that of the common water drive of the area. Therefore, the oil accumulation to the west, discovered in 1966, was designated as a separate field to be known as the West Sunoco-Felda field. Order No. 9, which was adopted and promulgated by the Department of Natural Resources on July 24, 1969, permits the Humble Oil and Refining Company to utilize the "Boulder Zone" in their No. 8 Gulf Coast Realties Corporation abandoned producer for the disposal of salt water produced in the Sunniland field. Currently the salt water production in the field is about 8,000 barrels per day, and it is anticipated that this will increase due to the installation of submerged pumping equipment to recover oil from the field. The injection will be through perforations at 2,960-3,020 feet in 5 1/2 inch casing; the chlorinity of the water sample from this interval was 19,927 ppm. This injection will not contaminate fresh water zones.

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INFORMATION CIRCULAR NO. 71 21 BIBLIOGRAPHY Banks, Joseph E. 1964 Oil and gas prospects of the Englewood area of Lee, Charlotte and Sarasota counties: Part IV, consisting of a study of the Comanche (Brown Dolomite zone), the Jurassic (sand) zone, and the Jurassic (carbonate) zone, unpublished report for the Coastal Petroleum Company, 18 p., 2 maps, 3 fig. and 3 tables. On open file, Library of Bureau of Geology, Florida Division of Natural Resources.

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INFORMATION CIRCULAR NO. 71 23 APPENDIX I EXPLORATORY WELL INFORMATION, 1969

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COLLIER COUNTY Bureau of Geology Total Acquisition Locality Well Fee -Commenced Depth Elevation N1. Designation API No. Operator No. Name -Completed (feet) (feet) W-8748 Cr-47S-28E-9ad 09-021-20007 Mobil 1 Barron Feb. 14,'69 11,987 39DF Callier, Mar. 30, '69 Jr. Location: Sec. 9-T47S-RZ8E (1, 980 feet from the South line, and 1, 980 feet from the East line of the section) Remarks: 1. Discovery well, Lake Trafford field (possible field title only; not confirmed or official) 2. Casing Program: Set 20" in 26" hole at 269' with 600 sacks of cement Set 13 3/8" in 18 1/2" hole at 1,507' with 845 sacks of cement Set 9 5/8" in 12 1/4" hole at 3,830' with 400 sacks of cement Set 5 1/2" in 8 3/4" hole at 11, 987' with 359 sacks of cement 2 1/2" tubing at 11,089' 3. DST (11,837 -886 feet). Hole size 8 3/4". Mud weight, 8.3 water. Temperature, 180' F. Water cushion, 1,000 feet. Tool open, 15 minutes, bubble started in 11 minutes. Recovery: 1,000 of water cushion, 1,900 feet of gas-cut oil, 550 feet of oil-cut fresh water. Tool closed in for 30 minutes for the initial closed-in pressure. Tool was re-opened for 240 minutes for the second flow readings; there was a good blow, with pressure increasing steadily.

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COLLIER COUNTY (con't) Bureau of Geology Total Acquisition Locality Well Fee -Commenced Depth Elevation No. Designation API No. Operator No. Name -Completed (feet) (feetl Pressure (in psi) Upper chart (top of tool at 11,816 feet): First (15 min.) Interval Second (240 min.) Interval First Second First Second Reading Reading Reading Reading Initial Hydrostatic 5,469 5,428 Initial Closed In 5,440 5,411 Initial Flow 966 1,050 889 1,017 Final Flow 1,008 1,752 998 1,733 Final Closed In 5,386 5,419 Final Hydrostatic 5,469 5,378 Lower Chart (top of tool at 11,883 feet): Initial Hydrostatic 5,466 5,467 Z Initial Closed In 5,425 5,450 Initial Flow 989 1,032 1,000 1,055 j Final Flow 1,032 1,779 1,040 1,776 Final Closed In 5,396 5,454 Final Hydrostatic 5,466 5,408 4. The perforated interval of the 5 1/2inch production casing was 11,870-892 feet (22 feet). 5. The Initial Production from this well was 118 BOPD with 78 BWPD; corrected gravity was 25. 6 degrees APL Pump specifications were: size working barrel, I 1/4 inches; number of strokes per minute, 10; length of stroke, 120 inches. ts> l/l z

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COLLIER COUNTY (con't) Bureau of eQology Total Acquisition Locality Well Fee -Commenced Depth Elevation No, Designation API No. Operator No. Name -Completed (feet) (feet) 6. This well produces from the tight lower Sunniland Limestone. Several applications of acid have been used to increase permeability. An unsuccessful cementing -and acidation operation will be described as an indication of the mechanical difficulties encountered in completion attempts. This description is: Some four months after the well initially was completed, the operator perforated the casing opposite salt water zones immediately above the productive interval; in the original setting of the production string, these sIlt water zones had been inadequately sealed because the cement "flash set. Through the new perforations cement was squeezed to seal the salt water zones, Then, the well was acidized; 15,000 gallons were on the location, but not all of it was used. It was intended that the injected acid should go into the producing zone, but instead it went upward into the newly "squeezed" cement opposite the water zones, and thence through the perforations at that depth and into the casing. This pressure increased from 3,700 pal to 7,900 psi. Subsequently the subject water zones were sucessfully squeezed, the well was re-acidized (with 5,000 gallons?) and stabilized production as of December 1, 1969 was 115 BOPD with about 0. 2 of 1 percent water. The pump is set below 10,000 feet, but the well produces gas to the surface which eliminates fuel cost for pump operation. This well produces more gas than any well in Florida to date, though the gas is non-commercial in quantity. 7. Induction-Electrical Log, 3,833-11,986 feet; Borehole Compensated Sonic Log, with Caliper, 30-11, 984 feet. 8. Top of Sunniland Limestone at 11,632 feet (-11,593 feet)

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COLLIER COUNTY Bureau of Geology Total Acquisition Locality Well Fee -Commenced Depth Elevation No. Designation API No. Operator No. Name -Completed (feet) (feet) W-8853 WCr-48SHumble 26 Gulf Coast Jan. 3, '69 11,700 34 DF 30E-19bc Realties Apr. 25, '69 Corp. Location: Sec. 19 -T48S-R30E (from the southwest corner of the section, go north along the section line 1,984.48 feet; thence at right angles go easterly 2,015.0 to location) Remarks: 1. Producing well, Sunniland field 2. Casing Program: 20" in 26" hole at 245' with 300 sacks 13 3/8" in 17 1/2" hole at 1,403' with 656 sacks 9 5/8" in 12 1/4" hole at 3,699' with 400 sacks 5 1/2" in 8 3/4" hole at 11,711' with 450 sacks 3. Completion Steps Perforations Initial Acidation Subsequently Cemented 11,573 -11,584 (up "C" zone) 250 gal. 15% Hcl 11,598-11,604 ("D" zone) 250 gal. 15% Hcl 50 sacks Florida well and locality designation system is described in appendix 3. t-

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COLLIER COUNTY (con't) Bureau of Total Geology Acquiition Locality Well Fee -Commenced Depth Elevation No. Designation API No. Operator N3. Name -Completed (feet) (feet) 4. Production Tests: TEST 24 HR. RATES WATER DATE PERIOD OIL WATER TOTAL OIL WATER TOTAL % GOR Initial Completion in "D" zone 2-28 24 hr. 36 269 305 36 269 305 88 100 0 3-19 24 hr. 102 232 334 102 232 334 70 100 Recomplete Well to "UC" zone, with convcntional pump 3-16 24 hr. 471 50 521 471 50 521 10 100 4-10 24 hr. 242 103 345 242 103 345 29 100 Remove Rod Pump and Install Electrical Submersible Centrifugal Pump ("UC" zone) 4-17 4 hr. 124 74 198 744 444 1,188 37 100 4-24 6 hr. 148 106 254 592 424 1,016 42 100 6-7 24 hr. 303 384 687 303 384 687 56 100 5. Induction-Electrical Log, 3,700 -11,710 feet-

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COLLIER COUNTY Bureau £f Geology Total Acquisition Locality Well Fee -Cammenced Depth Elevation No. Designation API No. Operator No. Name -Completed (feet) (feet) Cr-485-29E09-021-20008 Humble 27 Gulf Coast 11,715 35 DF 24b Realties Corp. Location: Sec. 24-T48S-R29E (1,400 feet from the North line, and 2,600 feet fram the East line of the section) Remarks: 1. Producing well, Sunniland field (perforatfans, 11,588-11, 600 feet) 2. Initial production test: 40 BOPD, with 88% of the total fluid recovery being salt water. GOR was 100 to 1; corrected gravity, 26 degrees API. 3. Induction-Electrical Lag, 3,720-11,694 feet 'O

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DUVAL COUNTY Bureau fa Geology Total Acquisition Locality Well Fee -Commenced Depth Elevation No. Designation API No. Operator No. Name -Completed (feet) (feet) DU-3S-23E 09-031-20003 Durham 1 Gilman Apr. 24, '69 95 DF llad Paper May 15, '69 Co, Location: Sec. 11-T3S-R23E (South 32'30'56" Eaqt a distance of 196. 67 feet from the center of the Northwest quarter of the Southeast quarter of the section) Remarks: 1. Plugged and abandoned. L'J

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DUVAL COUNTY Bureau of Geology Total Acquisition Locality Well Fee -Commenced Depth Elevation No. Designation API No. Operator No. Name -Completed (feet) (feet) W-8898 DU-3S-23E-17aa 09-031-20002 Durham B-I Gilman July 12, '69 94 DF Paper Aug. 7, '69 Co. Location: Sec. 17-T3S-R23E (North -2*34'38" East, a distance of 199. 07 feet from the center of the NW quarter of the section) Remarks: 1. Plugged and aband'ned. A-' r-

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DUVAL COUNTY Bureau of Geology Ttal Acquisition Locality Well Fee -Commenced Depth Elevation No. Designation API No. .Operator No. Name -Completed (feet) (feet) W-8881 DU-IS-24E09-031-20001 Durham 1 Monticello Feb. 14, '69 91 DF 23ab Drug Co. Mar. 19, '69 Location: Sec. 23.TIS-R24E ( 1989.80 feet West, and 630. 33 feet South of the Northeast corner of the section) Remarks: 1. Plugged and abandoned. .1.

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HENDRY COUNTY Bureau of O Geology Total Acquisition Locality Well Fee -Commenced Depth Elevation No. Designation API No. Operator No. Name -Completed (feet) (feet) Hy-45S-28E09-051-20006 Humble 32-1 Lee11,600 46 DF 32bb Cypress "A" Location: Sec. 32-T45S-R28E (1,100 feet from the North line, and 1,100 feet from the East line of the section) Remarks: 1. Producing Well, West Sunoco-Felda Field Note: Additional data not supplied because well was not officially completed, as of December 31, 1969. On this date the well was still production testing the upper Sunniland Limestone. U,

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HENDR Y COUNTY Bureau of Geology Total Acquisition Locality Well Fee -Commenced Depth Elevation No. Designation API No. Operator No. Name -Completed (feet) (feet) W-8758 Hy-45S-28E09-051-20005 Sun Oil Co. 28-3 Lee May 9, '69 11,675 49 DF 28cc Cypress July 9, '69 "A" Locatlon: Sec. 28-T45S-R28E (1,183.6 feet from the West line, and L, 187. 6 feet from the South line of the section) Remarks: 1. Producing well, West Sunoco-Felda Field 2. Casing Program: 20" in 26" hole at 217' with 500 sacks of cement 13 3/8" in 17 1/2" hole at 1,132' with 800 sacks of cement 95/8" in 12 1/4" hole at 3,560' with 200 sacks of cement 5 1/2" in 8 3/4" hole at 11, 675' with 473 sacks af cement; perforated at 11,456-466 feet with 4 shots per foot 2 7/8" tubing at 7,018' 3. DST's: Nane 4. Perfaration and Acidation:. (a) Perforated at 11,456-11,466 feet with 4 shots per foot. (b) This well was not acidised for the initial production test. 5. Initial Production Test (24 hours £f duratln): 296 BOPD with 15 BWPD (4.5 percent of total fluid) (Pumping details: working barrel, 1I/Z inches; strokes per minute,. 13; length of stroke, 100 inches)

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HENDRY COUNTY (con't) 6. Induction-Electrical Log, 3,561-11,678 feet; borehole compensated SonicGamma Ray log, 8,000-11,678 feet. 0 7. Tops (IES)' Sunniland marker 11,426 (-11,378) feet 2Z

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HENDRY COUNTY Bureau of Geology Total Acquisition Locality Well Fee -Commenced Depth Elevation No. Designation API No. Operator No. Name -Completed ((eet) (feet) Hy=45S-28E-313. 09-051-20007 Sun Oil Co. 33-2 Red Cattle Sept. 25, '69 11,686 50 DF Co. "B" Nov. 6, '69 Location: Sec. 33-T45S-R28E (center of the N. W. quarter, being 1,330.4 feet from the North line, and 1,324.6 feet from the Welt line of the section). Remarks: 1. Producing well, West Sunoco-Felda field 20" in 26" hole at 204' with 500 sacks of cement 13 3/8" in 17 1/2" hole at 1,365' with 800 sacks of cement 9 5/8" in 12 1/4" hole at 3,570' wkh 200 sacks of cement 5 1/2" in 8 3/4" hole at 11.685' with 450 sacks of cement 2 7/8" tubing at 4,687' 3. DST's: None 4. Perforation and Acidation: a. Perforated at 11,464-11,472 well with 4 shots per foot b. This well was not acidized for the initial production test. .Initial production test (24 hours of duration): -408 BOPD with 12 BWPD (2. 9 percent). GOR was 498 to 1 (Pumping details: Working barrel, 2 1/2 inches; strokes per minute, 12; length of stroke, 100 inches) 6. InductionElectrical log, 3,57211,686 feet.

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HENDRY COUNTY Bureau of deology Total Acquisition Locality WeLl Fee -Commenced Depth Elevation No. Designation API No. Operator No. Name -Completed (feet) (feet) Hy-44S-28E-33C 09-051-20009 San Oil Co. 33-3 Red Dec. 3, '69 46 DF Cattle Co. "B" Location: Sec. 33-T45S-R28E (1,555 feet fr3m the South line, and 1,325 feet (rom the West Line of the section) -41 Note: Additional information is not available because this well was not completed on December 31, 1969, on which date the operator was coring the Sunniland Limestone.

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I.t: : (COUIN'I Y Bureau o Geology Total Acquisition Locality Well Fee -Commencud Depth Elevation No. Designat ion API No. Opurator No, Name -Completed (feet) (feet) Le-46S-27E-35b 09-071-20001 Mobil 1 Sanders July 23, '69 11,960 41 DF Sept. 15, '69 La3ation: Sec. 35-T465-R27E (1, 200 feet from the East line, and 1,320 feet from the North line of the section.) This location Is about 4 1/2 miles N. W. of the Mobil, No. 1 Barron Collier, Jr. discovery well. Remarks: 1, Plugged and Abandoned 2. Casing Program: Set 20" in 26" hole at 243' with 275 sacks of cement Set 13 3/8" in 17 1/2" hole at 1,483' with 1,050 sacks of cement Set 9 5/8" in 12 1/4" hole at 3, 737' with 500 sacks of cement Set 5 l/2"'ln 8 3/4" hole at 11,955' with 1,000 sacks os cement 3. Interval Thickness Recovery Core .(feet) (feet) (feet) Comment L. 11,830-11,848 18 16 2 11,848-11,867 19 19 3 11,867-11,887 20 13 It is probable that the bottom 7 feet of the interval cut was the portion not recovered, and that it consisted of anhydrite, as indicated by the Electrical Log and Drilling Time. General Comment: a) Oil shows were found in 10-15 feet of the rock of the three cores; but only 2 feet were saturated.

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LEE COUNTY (con't) b) These cores were taken in the lower Sunniland Limestone, which is the -4 productive horizon in the Mobil, No. 1 Barron Collier, Jr. discovery well. 4. DST (11,838-11,888 feet), preliminary report: Open 10 hours. Water cushions, 1,000 feet > Recovery, 1,166 feet of oil and gas cut water cushion. Bottom Hole Pressure: MM, 5,960 psi; IP, 630 pstL FF, 630 psi; 151, 3,349 psi: FM, 5,960 psL Comment: It appears that the oil recovery on DST of about 1 to 2 BOPD might have been better If the drilling mud had been lighter. This mud had been increased to a drilling weight of 9.4 pounds per gallon, with a viscosity of 42, to improve sample and core quality. For this reason the hydrostatic mud pressures shown above are unusually large. 5. The operator squeezed off the water zone above the horizon of oil interest, and conducted the following production test: Perforated Acidized with Swabbed p 11,852-11,868 feet 1,000 gallons about 1/2 BOPH or at with 32 shots a rate of 12 BOPD 6. Dual Induction-Laterolog, 3, 741 -11,955 feet; Borehole Compensated Sanlc-Gamma Ray, 3, 740-11, 955 feet. 7. Top Sunniland Limestone: 11,608 feet (.11,568 feet)

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POLK COUNTY Bureau of Geology Total Acquisition Locallty Well Fee -Commenced Depth Elevation No. Design4tion API N., Operator No. Name -Completed (feet) (feet) W-8741 Po-32S-27E09-105.20001 Sun Oil Co. 1 Shepard Mar. 31, '69 169 DF 19ab Dairy, Inc. Apr. 30, '69 Location: Sec. 19-T32S-R27E (Center of the Northwest quarter of the Northeast quarter of the section, being 660.3 feet from the N3rth line and 1,98L 7 feet from the East line of the section) O Remarks: 1. Plugged and Abandoned 2. Casing Program: Set 20" in 26" hole at 196' with 250 sacks of cement Set 13 3/8" in 17 1/2 hole at 540' with 395 sacks of cement Set 9 5/8" in 12 1/4" hole at 3,089' with 380 sacks of cement 3. DST's: None 4. Chemical or shooting record: None 5. Induction-Electrical Log, 3,090 = 9,669 feet; Borehole Compensated Sonic-Gamma Ray, 3,090-9,670 feet

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SANTA ROSA COUNTY Bureau of Geology Total Acquisition Locality Well Fee -Commenced Depth Elevation Z No. Designation API No. Operator N3. Name -Completed (feet) (feet) I WSr-IS-Z8W-14b 09-113-20003 Anderson I FSL 2338 May 14, '69 6,871 12 KB June 8, '69 Location: Sec. 14-TIS-R28W (from corner common to section 12, 13 and 14, go South 29*30' West a distance of 1,337 feet). This location was on land but adjacent to the State water bottom in East Bay; it satisfied the State drilling lease 0 well requirement. Remarks: A. Subsurface record 1. Plugged and abandoned 2. Casing Program: 8 5/8" in 12" hole at 456' with 250 sacks 3. Induction-electrical log, 462-6870' 4. Tops (IES): Selma Chalk 3,974' Eutour 5,690' Marine Shale 6,158' Lower Tuscaloosa 6,548' Massive Sand 6,636' 5. Plugging method: s*

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INFORMATION CIRCULAR NO. 71 43 APPENDIX HI BUREAU OF GEOLOGY CARBONATE CLASSIFICATION

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FLORIDA GEOLOGICAL SURVEY CARBONATE CLASSIFICATION LIMESTONE DOLkTOriginal texture not Original Texture Altered OO. visibly altered exModerately Stronly cept by cementation Lees than 1 Partially Less than 10-75% More than 75% Original texture and compaction. Dolomite Dolomitised 10% DoloGranoDolomite with obliterated. Less than 10% mite blastic relic texture. More than 75% ________Dolonite. Dolomite Dolomite. Calcilutite ne grained Carbonate facies Calcilutite Partially rePartally Crystalline Dolomitic Calcilutitic carbonate 10% impurities of crystallized. Dolomitized. particles. noncarbonate Calcilutite. Calcilutite. Calcilutite Calcilutite Dolomite Major perminerals centage of Impure facies 10. Impure Partially carbonate 50% impurities of Calcilutite (Marl) Dolomitised fraction is noncarbonate, clay Impure clay and silt and silt sized Calcilutite else, minerals Sandy faies 10Sandy Crystalline Crystalline 50% clastic nonCalcilutite Sandy Dolomi carbonate sand Calcilutite with impure sised impurities and sandy. Calcarenite applied where Major perCarbonate Calcarenite Dolomitic appropriate. centage of Calcarenite rock is comI mpure pre mpure posed of Calcarenite Calcarenitic carbonate Dolomite particles Sandy Sandy 1/16 to 2 Calcarenite Dolomitic millimeters landy in size. Calcarenite Calcirudite Major perCarbonate Calcirudite Crystalline centage of C___ ___ __ alcirudite sediments Impure Impure artally composed Calcirudite Dolomitized of carbonate Calcirudite particles; Sandy Sandy Partially recoarser than Calcirudite crystallized 2 milltmeteo Sandy in diameter. _ Calcirudite

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INFORMATION CIRCULAR NO. 71 45 APPENDIX mI

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46 BUREAU OF GEOLOGY BUREAU OF GEOLOGY WELL AND LOCALITY DESIGNATION SYSTEM The locality and well numbering system is based on the location of the locality or well, and uses the rectangular system of section, township, and range for identification. The number consists of five parts. These are: 1) a prefix of three letters designating L for locality or W for well and county abbreviation, 2) the quarter/quarter location within the section, 3) the section, 4) the township, and 5) the range. The basic rectangle is the township which is 6 miles square. It is consecutively measured by tiers both north and south of the Florida base line-an east-west line that passes through Tallahassee. This basic rectangle is also consecutively measured both east and west of the principal meridian-a north-south line that passes through Tallahassee. In recording the township and range numbers, the T is left off the township numbers, and the R is left off the range numbers. Each township is divided equally into 36 square miles called sections, and are numbered 1 through 36 as shown on the attached diagram. The sections are divided into quarters with the quarters labeled "a" through "d" as shown on diagram. In turn, each of these quarters is divided into quarters with these quarter/quarter squares labeled "a" through "d" in the same manner. The "a" through "d" designation of quarters may be carried to any extent deemed useful. The location of the well WLn-2N-2E-21 db shown on the diagram would be in the center of the southeast quarter of the northeast quarter of section 21, township 2 north, range 2 east. When there is more than one well or locality in a square 40-acre tract (quarter/quarter section) they are identified by either an additional quarter designation or by a sixth arbitrary accession number at the end of the range unit. The abbreviations used for counties are: Alachua Aa Escambia Es Baker Bk Flagler Fg Bay By Franklin Fk Bradford Bf Gadsden Ga Brevard By Gilchrist Gr Broward Bw Glades G1 Calhoun Cn Gulf Gf Charlotte Ch Hamilton Hm Citrus Ci Hardee Hd Clay Cy Hendry Hy Collier Cr Hernando Hr Columbia Co Highlands Hi Dade Dd Hillsborough HI DeSoto Ds Holmes Ho Dixie Dx Indian River Ir Duval Du Jackson Jk

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INFORMATION CIRCULAR NO. 71 47 Jefferson Jf Pasco Ps Lafayette Lf Pinellas Pi Lake Lk Polk Po Lee Le Putnam Pu Leon Ln St. Johns Sj Levy Lv St. Lucie Si Liberty Lb Santa Rosa Sr Madison Md Sarasota Sa Manatee Mn Seminole Se Marion Mr Sumter Sm Martin Mt Suwannee Sw Monroe Mo Taylor Ty Nassau Na Union Un Okaloosa Oa Volusia Vo Okeechobee Oe Wakulla Wk Orange Or Walton W1 Osceola Os Washington Ws Palm Beach Pb

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48 BUREAU OF GEOLOGY R 2 E 6 5 4 3 2 1 a i b __ ___ a -----c d T 7 8 9 10 II 12 ___ __ ___ __ _____ ---^-t-18 17 16 15 14 13 c d 2 19 20 21 22 23 24 Division of a section into quarters of approx. 160 N 30 29 28 27 26 25 acres and division of a quarter section into quarters of approx. 40 31 32 33 34 35 36 acres. SECTIONIZED TOWNSHIP NOTE: A well in Leon County,Township 2 North, Range 2 East, Section 21, located in the center of the southeast quarter of the northeast quarter would be designated thus: WLn-2N-2E-21 db

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t;

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-FLORIDA-GEOLOGICAL-SURVEY COPYRIGHT NOTICE [year of publication as printed] Florida Geological Survey [source text] The Florida Geological Survey holds all rights to the source text of this electronic resource on behalf of the State of Florida. The Florida Geological Survey shall be considered the copyright holder for the text of this publication. Under the Statutes of the State of Florida (FS 257.05; 257.105, and 377.075), the Florida Geologic Survey (Tallahassee, FL), publisher of the Florida Geologic Survey, as a division of state government, makes its documents public (i.e., published) and extends to the state's official agencies and libraries, including the University of Florida's Smathers Libraries, rights of reproduction. The Florida Geological Survey has made its publications available to the University of Florida, on behalf of the State University System of Florida, for the purpose of digitization and Internet distribution. The Florida Geological Survey reserves all rights to its publications. All uses, excluding those made under "fair use" provisions of U.S. copyright legislation (U.S. Code, Title 17, Section 107), are restricted. Contact the Florida Geological Survey for additional information and permissions.


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