The Mobil-David Anderson field, an abnormal- pressure gas reservoir in South Texas
The behavior of abnormal pressure reservoirs is of current interest to the industry. Preliminary information indicates that such reservoirs require some special handling. The purpose of this study is to present the basic data of the early history of an abnormal pressure reservoir. The basic data presented should be useful to those interested in operating or modeling such reservoirs. The Anderson ''L'' gas-condensate reservoir had 9,507 psia at 11,277 ft for a 0.843 psi/ft gradient and the 3 wells have produced 36.8 billion cu ft and 2.3 MM bbl of condensate to 3,247 psia BHP. The condensate yield has declined from 74.4 bbl MMcf to 36 bbl/MMcf. Semiannual wellstream analyses are compared with the PVT analysis predictions. The separation of this 414-acre reservoir from the surrounding fault blocks is evident from faulting and different fluid contents and pressure- production histories. The BHP/Z curve was a straight line at early times, but other such reservoirs reported in the literature as having a concave upward trend.
- Research Organization:
- Mobil Oil Corp
- OSTI ID:
- 5300701
- Report Number(s):
- CONF-701012-
- Journal Information:
- Soc. Pet. Eng. AIME, Pap.; (United States), Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Vol. SPE-2938; ISSN SEAPA
- Country of Publication:
- United States
- Language:
- English
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030300* -- Natural Gas-- Drilling
Production
& Processing
CAPACITY
CONDENSATES
FEDERAL REGION VI
FLUID FLOW
FLUIDS
GAS CONDENSATE FIELDS
GAS CONDENSATES
GEOLOGIC DEPOSITS
GEOLOGIC FAULTS
GEOLOGIC STRUCTURES
GEOLOGY
GULF COAST
LIQUIDS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NATURAL GAS LIQUIDS
NATURAL GAS WELLS
NORTH AMERICA
PERFORMANCE
PETROLEUM DEPOSITS
PRESSURE GRADIENTS
PRODUCTION
RESERVOIR PRESSURE
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WELLS