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Statistics of Oklahoma's petroleum industry, 1971

Journal Article · · Okla. Geol. Notes; (United States)
OSTI ID:5999060
Total drilling of wells in search of oil and (or) gas decreased in all categories in 1971. Sixty-one counties were explored for new reservoirs, and 32 had successful completions, making a statewide success ratio for exploratory wells of 20%. Garvin County had the most exploratory tests (30), of which only 3 were discoveries. Caddo, Grady, Kay, Stephens, and McClain counties also had numerous exploratory tests but in addition had better success ratios. The most concentrated drilling activity in Oklahoma during 1971 was along the Marchand Sandstone (Mississippian) trend in W.-central Grady County and NE. Caddo County. Although the discovery well was completed in 1967, development was slow until additional discoveries were made in 1969, 1970, and early 1971 in the 20-mile-long north-northwesterly trend. Depth to the Marchand reservoir is 10,000 to 11,000 ft. Well spacing has been established as 160-acre units. Initial-flow potentials range up to 1,675 bopd. These figures show increases during 1971 of 90 producing wells, daily average production of 28,943 bbl and cumultive production of 6,639,364 bbl. The daily average production per well for Dec. 1971 was 256 bbl.
OSTI ID:
5999060
Journal Information:
Okla. Geol. Notes; (United States), Journal Name: Okla. Geol. Notes; (United States) Vol. 32:4; ISSN OKGNA
Country of Publication:
United States
Language:
English