Nisku of northeastern Montana with special reference to Tule Creek area, Roosevelt County, Montana
Conference
·
· Am. Assoc. Pet. Geol. Bull.; (United States)
OSTI ID:6669818
Oil accumulations of the Tule Creek area, that are found in the Devonian Nisku formation, are a result of structural and stratigraphic conditions. Present-day productive structures have about 50 ft of closure. These structures occur in an area of favorable Nisku patch-reef environment that was subjected to secondary dolomitization. Oil production is from vuggy and intercrystalline porosity and permeability developed by secondary dolomitization. Occasional high-angle fractures contribute only slightly to the overall reservoir productivity. The favorable patch- reef facies of the Nisku formation is controlled by environment and trends locally in a SW.-NE. direction. Structural closures that occur in the favorable facies area contain reservoir rocks with excellent porosity and permeability.
- OSTI ID:
- 6669818
- Conference Information:
- Journal Name: Am. Assoc. Pet. Geol. Bull.; (United States) Journal Volume: 49:13
- Country of Publication:
- United States
- Language:
- English
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Mon Aug 01 00:00:00 EDT 1983
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·
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Mon Feb 28 23:00:00 EST 1983
· Am. Assoc. Pet. Geol., Bull.; (United States)
·
OSTI ID:6375352
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Conference
·
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· Am. Assoc. Pet. Geol., Bull.; (United States)
·
OSTI ID:6962904
Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALKALINE EARTH METAL COMPOUNDS
CARBON COMPOUNDS
CARBONATE ROCKS
CARBONATES
DOLOMITE
ENERGY SOURCES
FAILURES
FOSSIL FUELS
FRACTURES
FUELS
GEOLOGIC DEPOSITS
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MINERAL RESOURCES
MINERALS
MONTANA
NORTH AMERICA
OIL FIELDS
OIL WELLS
OXYGEN COMPOUNDS
PERMEABILITY
PETROLEUM
PETROLEUM DEPOSITS
POROSITY
PRODUCTION
RESERVOIR ROCK
RESOURCES
ROCKS
ROCKY MOUNTAIN REGION
SEDIMENTARY ROCKS
STRATIFICATION
USA
WELLS
020300* -- Petroleum-- Drilling & Production
ALKALINE EARTH METAL COMPOUNDS
CARBON COMPOUNDS
CARBONATE ROCKS
CARBONATES
DOLOMITE
ENERGY SOURCES
FAILURES
FOSSIL FUELS
FRACTURES
FUELS
GEOLOGIC DEPOSITS
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MINERAL RESOURCES
MINERALS
MONTANA
NORTH AMERICA
OIL FIELDS
OIL WELLS
OXYGEN COMPOUNDS
PERMEABILITY
PETROLEUM
PETROLEUM DEPOSITS
POROSITY
PRODUCTION
RESERVOIR ROCK
RESOURCES
ROCKS
ROCKY MOUNTAIN REGION
SEDIMENTARY ROCKS
STRATIFICATION
USA
WELLS