Pampered Wasson San Andres is classic example of a reliable, long-producing reservoir

Journal Article · Fri Jun 01 04:00:00 EDT 1979 · Drill Bit; (United States)

OSTI ID:6196935

Pitts, J P

Activity in the Texas North Basin Platform Wasson oil field has been a continuing, intensive process for over 40 years. The principle producing horizon of the field is the Permian San Andres dolomite at an average depth of 5200 ft. The structure of the field is an anticline capped by dense dolomite and underlain by an essentially inactive aquifer. The gross pay thickness is between 200 to 500 ft with about 140-ft of net oil pay. The primary producing mechanism is gas in solution. The average porosity of the Wasson San Andres is 12%. Average conate water saturation is 15%, with an initial oil formation volume factor of 1.312 and an original reservoir pressure of 1805 PSI. It is these reservoir characteristics that have made the Wasson a prize producer. Since its discovery in 1936, the field has produced a cumulative total of 1,042,772,383 bbl of oil. Some background information on the history of discovery and development of the field is also provided, emphasizing the engineering required to maintain productivity.

• OSTI ID: 6196935
• Journal Information: Drill Bit; (United States), Journal Name: Drill Bit; (United States) Vol. 28:6; ISSN DRBIA
• Country of Publication: United States
• Language: English

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