Florida Geological Survey


crystalline, gray brown limestone and dolostone,
with low porosity and permeability, and potential
for only saltwater production. The field produced
a total of 13,695 barrels of oil during its entire
lifetime (Appendix 2). The discovery well was
the only producer at Sweetwater Creek field and
was plugged and abandoned in December 1980,
after it began producing 100 percent saltwater.


 South Florida Oil Field Summaries
 INTRODUCTION
 South Florida oil production began with
Florida's first oil discovery at Sunniland field in
September, 1943. There are now a total of 14 oil
fields in South Florida, oriented in a northwest-
southeast trend through Lee, Hendry, Collier and
Dade Counties (Figure 1). Of these 14
Sunniland trend oil fields, 10 are active, one is
temporarily shut-in, and three are plugged and
abandoned.
 Reservoirs found along the Sunniland trend
 are composed of localized buildups of organic
 debris into mounds or pods which formed porous
 grainstones within the upper Sunniland
 Formation (Figure 2). The fauna which make up
 these bioherms include rudistids, algal plates,
 gastropods, and foraminifera. Dolomitization has
 enhanced the porosity of these grainstones. The
 grainstones grade laterally into nonporous,
 miliolid-rich mudstones (Means, 1977, Mitchell-
 Tapping, 1984, 1985, and 1986). These miliolid
 mudstones often provide the trapping
 mechanism for these reservoirs.
 The exception to the above general description
 of south Florida oil fields is Lake Trafford field.
 Lake Trafford produces oil from a fractured
 limestone in the lower Sunniland Formation
 (Means, 1977).


 LEHIGH PARK FIELD

 The discovery well for the Lehigh Park field
 was the Exxon Consolidated Tomoka number


22-4 (permit 712) drilled in Section 22, Township
44 South, Range 26 East, Lee County. This is
the most northwesterly field in the Sunniland
trend (Figure 1). The discovery well was
completed on July 30, 1974, in the -11,349 to
-11,354 foot MSL interval of the Sunniland
Formation. Initial production was 490 barrels of
27.60 A.P.I. gravity oil and 48 barrels of saltwater
per day. This well was later abandoned and a
deviated well (permit 712A) was drilled at the
same surface location to produce higher on the
structure. A total of nine dry holes were drilled to
delineate this field. All of the producing wells
were directionally drilled because bottom hole
locations are beneath the town of Lehigh Acres.
 Figure 19 is a structure map on the top of the
Sunniland Formation (Ferber, 1985) at Lehigh
Park field. The reservoir appears to be typical of
the south Florida Sunniland trend fields -a
leached limestone bioherm. Core analysis by R.
E. Laboratories, Inc. (Dallas, Texas) yielded an
average porosity of 19.7 percent for the
Sunniland Formation from -11,337 to -11,364
feet MSL. They described this interval as a tan
to brown, fossiliferous, partially dolomitized
limestone.
 Two wells were actively producing and
 production totaled 5,165,000 barrels of oil at the
 end of December 1989 for this field (Appendices
 2 and 3).


 TOWNSEND CANAL FIELD

 Townsend Canal field is located in Section 2,
 Township 45 South, Range 28 East, Hendry
 County, approximately three miles north of Mid-
 Felda field, within the Sunniland trend (Figure 3).
 It was discovered on June 27, 1982, with the first
 production test of the Natural Resources
 Management Corporation A. Duda & Sons
 number 2-3 well (permit 1070). The test
 produced 160 barrels of 28.40 A.P.I. gravity oil
 and 42 barrels of saltwater per day. Production is
 from the Sunniland Formation between -11,363
 and -11,368 feet MSL (Appendix 1).