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Uinta Basin promising, frustrating

Journal Article · · Oil Gas J.; (United States)
OSTI ID:5597135
An area that has yet to see a bona fide dry hole might be considered an oil operator's dream. However, this is not exactly the case for the Altamont field area in the Uinta Basin of NE. Utah. Correlation of pay zones is difficult and abnormal pressure means expensive drilling, but each well appears capable of draining 640 acres or more. The Uinta Basin is characterized by numerous oil seeps, surface asphalts, and gilsonite dikes. Shell Oil Co., one of the more active operators in the area, has 8 recent completions and 5 drilling wells. A base map shows the pertinent data in the area of present interest. Well-to- well correlation of gross zones is fairly straightforward. Individual productive intervals within the gross zone do not line up at all as indicated by the Altamont stratigraphic cross section. Engineers feel that many oil zones are limited in areal extent. All are believed to be stratigraphic traps. Average depth is about 13,000 ft, but production is found in the range from 9,900 to 14,600 ft. Target zones in the Altamont area are the Eocene lower Green River and Wasatch zones. The Wasatch is the lower producing zone in the Bluebell field to the east. Most wells suffer a lost-circulation problem in the Uinta zone and the top of the Green River.
OSTI ID:
5597135
Journal Information:
Oil Gas J.; (United States), Journal Name: Oil Gas J.; (United States) Vol. 69:39; ISSN OIGJA
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
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03 NATURAL GAS
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ASPHALTS
BITUMENS
CENOZOIC ERA
CORRELATIONS
COST
DEPTH
DIMENSIONS
DRILLING
DRY HOLES
ENERGY SOURCES
EVALUATION
EXPLORATION
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FEDERAL REGION VIII
FOSSIL FUELS
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GEOLOGIC AGES
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GEOLOGIC FORMATIONS
GEOLOGIC TRAPS
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IGNEOUS ROCKS
INDUSTRY
MAPS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NATURAL GAS FIELDS
NATURAL GAS WELLS
NORTH AMERICA
OIL FIELDS
OIL WELLS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DEPOSITS
PETROLEUM INDUSTRY
PRODUCTION
PRODUCTIVITY
RESERVOIR PRESSURE
RESOURCES
ROCKS
SEEPS
STRATIGRAPHY
SURVEYS
TAR
TERTIARY PERIOD
UINTA BASIN
USA
UTAH
WELL COMPLETION
WELL SPACING
WELLS