Stratigraphic vs structural controls on hydrocarbon accumulation in Aneth area, Paradox basin
Pennsylvanian oil and gas accumulations in the southern Paradox basin occur in carbonate mounds of Des Moines age. Major oil production at Aneth, Ismay, Tohonadla, Gothic Mesa, Anido Creek, and other fields is from algal mounds elongated in a general NW. direction along the basin shelf. Carbonate reservoirs are closely associated with sapropelic black shales and evaporites. As far as can be determined all reservoirs are isolated bodies of porous carbonates, mostly limestone. About 30 oil and gas fields in Pennsylvanian rocks have been found in the Four Corners area, about half of which are classed as stratigraphic and the other half as either structural or structural- stratigraphic. In almost all cases it can be demonstrated that the accumulation would have developed even if no structural closure were present, although in many places the occurrence is localized by structural growth.
- OSTI ID:
- 6736387
- Journal Information:
- Am. Assoc. Pet. Geol. Bull.; (United States), Vol. 49:19; Conference: AAPG mid-continent section bien. meeting, Tulsa, OK, USA, 13 Oct 1965
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
03 NATURAL GAS
58 GEOSCIENCES
NATURAL GAS DEPOSITS
STRATIGRAPHY
PETROLEUM DEPOSITS
ALGAE
BLACK SHALES
CARBONATES
EXPLORATION
GEOLOGIC TRAPS
NATURAL GAS FIELDS
OIL FIELDS
PENNSYLVANIAN PERIOD
PRODUCTION
RESERVOIR ROCK
ROCKS
UTAH
BITUMINOUS MATERIALS
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CHATTANOOGA FORMATION
ENERGY SOURCES
FOSSIL FUELS
FUELS
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
GEOLOGY
MATERIALS
MINERAL RESOURCES
NORTH AMERICA
OIL SHALES
OXYGEN COMPOUNDS
PALEOZOIC ERA
PLANTS
RESOURCES
ROCKY MOUNTAIN REGION
USA
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing
580100 - Geology & Hydrology- (-1989)