Lowstand carbonate reservoirs: Upper Pennsylvanian sea level changes and reservoir development adjoining Horseshoe Atoll
Conference
·
· AAPG Bulletin (American Association of Petroleum Geologists); (USA)
OSTI ID:6989930
- Wichita State Univ., KS (USA)
The majority of carbonate reservoirs comprising the Horseshoe Atoll were deposited as reefs and skeletal sand banks during sea level highstands of glacio-eustatic origin, during Canyon (Missourian) and Cisco (Virgilian) deposition. During lowstands, previously deposited carbonate rocks were exposed subaerially to intense meteoric dissolution and karstification creating the pore systems typical of most Horseshoe Atoll fields. Detailed biostratigraphic and sedimentologic studies and recent discoveries adjoining the Horseshoe Atoll have documented the deposition of in-situ and associated intraclastic limestone reservoirs deposited in former slope and basin locations concomittant with periods of sea level lowstand. The authors data suggest that the deposition of such reservoirs occurred throughout the Late Pennsylvanian and accompanied sea level drops of as great as 200 m. To date, productive lowstand reservoirs have been identified in rocks of the middle lower, upper lower, and upper middle Missourian, and the lower lower Virgilian. These deposits are represented by porous reefs, skeletal sandstones, and porous-to-tight intraclastic limestones previously referred to as satellite or pinnacle reefs. These deposits, subsequently onlapped and buried by deepwater shales, comprise potentially prolific stratigraphic-trap reservoirs in basinal areas seaward of the Horseshoe Atoll.
- OSTI ID:
- 6989930
- Report Number(s):
- CONF-9003145--
- Conference Information:
- Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (USA) Journal Volume: 74:2
- Country of Publication:
- United States
- Language:
- English
Similar Records
Perriwinkle and Perriwinkle North fields, Martin County, Texas: A Cisco-Canyon lowstand reef complex
Late Pennsylvanian depositional cycles and fusulinid zonations for the Salt Creek reef of the Horseshoe Atoll of west Texas - Implications for a sea level curve and regional correlations
Carbonate reservoirs deposited during sea level lowstands, Permian basin: Occurrence, geometry, facies, and origin of porosity of in-situ buildups
Conference
·
Tue Mar 31 23:00:00 EST 1992
· AAPG Bulletin (American Association of Petroleum Geologists); (United States)
·
OSTI ID:6969521
Late Pennsylvanian depositional cycles and fusulinid zonations for the Salt Creek reef of the Horseshoe Atoll of west Texas - Implications for a sea level curve and regional correlations
Conference
·
Tue Mar 31 23:00:00 EST 1992
· AAPG Bulletin (American Association of Petroleum Geologists); (United States)
·
OSTI ID:7152949
Carbonate reservoirs deposited during sea level lowstands, Permian basin: Occurrence, geometry, facies, and origin of porosity of in-situ buildups
Conference
·
Wed Jan 31 23:00:00 EST 1990
· AAPG Bulletin (American Association of Petroleum Geologists); (USA)
·
OSTI ID:6989941