Modern methods rediscover deep gas. [Texas]
In 1973, Northern Natural Gas (NNG) Co.'s Midland exploration and production district acquired a 7-section lease block on a Devonian-Montoya prospect suggested by trend geology and limited seismic data. This acreage block was 2 miles west of the abandoned Hershey field, and included acreage on which the Devonian was tested at noncommercial rates in 1962. Additional seismic data confirmed the presence of a drillable prospect on NNG's acreage block. Engineering analyses of the reservoir characteristics suggested that modern completion and treatment techniques would result in a commercial producer. NNG's management approved the expenditure and the first well was spudded in April, 1977. This well, the No. 1 Hershenson, was completed in Sept., 1977 as the discovery well in the Hershey West (Devonian-Montoya) field for a calculated open flow potential (CAOFP) of 20.5 mmcfd dry gas from perforations at 15,445 to 16,017 ft. The confirmation well, No. 1 Hershenson 6, was spudded in May, 1978, and completed in Oct., 1978, for a CAOFP of 86.3 mmcfd from perforations at 16,000 to 16,624 ft. A third well, No. 1 Maddox-Willbanks 15, was spudded in Nov., 1978. Rediscovered field potential justified construction of a gas processing plant and a 16-mile pipeline.
- OSTI ID:
- 6719433
- Journal Information:
- Pet. Eng.; (United States), Vol. 51:3
- Country of Publication:
- United States
- Language:
- English
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NATURAL GAS WELLS
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TEXAS
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DEPTH 3-6 KM
EXPLORATION
NATURAL GAS DEPOSITS
NATURAL GAS DISTRIBUTION SYSTEMS
NATURAL GAS PROCESSING PLANTS
PIPELINES
SEISMIC SURVEYS
WELL COMPLETION
DEPTH
DIMENSIONS
ENERGY SYSTEMS
FEDERAL REGION VI
GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
INDUSTRIAL PLANTS
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NORTH AMERICA
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030300* - Natural Gas- Drilling
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