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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 55 (1971)

Issue: 3. (March)

First Page: 403

Last Page: 411

Title: Breedlove Field, Martin County, Texas

Author(s): James K. Munn (2)

Abstract:

The Breedlove field, in northwest Martin County, Texas, is adjacent to the present deep axis of the Midland basin and on the northeast flank of the Tobosa basin of Silurian time. The field was discovered in 1951 by Pan American Production Company on the basis of a seismic anomaly. As of January 1, 1970, the field had 42 wells producing from the Silurian and 6 wells from the Permian Spraberry. Total cumulative production was 17,876,902 bbl.

The Silurian carbonate section in West Texas, which ranges in age from possible Alexandrian (Early Silurian) through Niagaron (Middle Silurian), can be subdivided into three distinct stratigraphic rock units in the Breedlove field, referred to herein as "upper" Silurian, "middle" Silurian, and Fusselman. The major producing zone is the "upper" Silurian, which thins toward the north and east over a southwest-plunging anticlinal fold. Production on the north is limited by the nonporous limestone facies. The "upper" Silurian is overlain by the Woodford shale and is separated from the underlying porous Fusselman reservoir by the relatively nonporous "middle" Silurian limestone unit, which resulted in a water table that ranges in depth from -9,190 ft on the north to -9,260 ft on the south. Porosity development in the reservoir is the result of fracturing, selective dolomitization, and pre-Woodford erosion.

The structural and stratigraphic conditions associated with the Silurian carbonate reservoir in Breedlove field should stimulate the search for, and development of, other Silurian fields.

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