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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 69 (1985)

Issue: 5. (May)

First Page: 844

Last Page: 844

Title: Mustang Flat--Significant New Paradox Basin Field: ABSTRACT

Author(s): Richard M. Carroll

Article Type: Meeting abstract

Abstract:

The Mustang Flat oil and gas field in T36S, R23E, Utah, was discovered by Texas Eastern Skyline Oil through the integration of regional geologic concepts and seismic stratigraphic techniques.

Mustang Flat currently is capable of production from five wells in the Ismay (Des Moines) Member of the Hermosa Formation. The reservoir is developed from limestones and dolomites associated with the deposition of algal (Ivanovia) mounds. The porous section ranges from 30 to 104 ft (9 to 32 m) thick, using a 7% porosity cutoff (as indicated on a compensated neutron log). A hydrocarbon column of at least 180 ft (55 m) has been established; a water contact has not been encountered. Developmental drilling is continuing. Two wells are capable of production from the Desert Creek.

The Patterson field in T37S, R24E, served as a model for exploration. Regional seismic and subsurface studies revealed the Patterson field to be associated with a break in the slope of a postulated paleoshelf. In addition, modeling indicated that porosity within the Ismay could be recognized from seismic data. From regional seismic control, the paleoshelf break was traced to the northwest into T36S, R23E. Seismic data revealed a broad northeast-southwest-trending nose that intersected the paleoshelf break, and porosity indicators were noted. Seismic and leasing programs were subsequently begun. Portable shothole seismic equipment was used because of terrain considerations. High-resolution acquisition and processing techniques were utilized. Careful analysis of isochron and time struct re maps, and use of porosity indicators resulted in the Mustang 1 discovery location. Subsequent drilling and seismic work have revealed pitfalls of which the seismic interpreter should be aware.

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Copyright 1997 American Association of Petroleum Geologists