Primary and secondary porosity development in valley fill, marine sandstone reservoirs - Misener Formation, north-central Oklahoma
- International Petrology Research, Tulsa, OK (USA)
The Devonian Misener formation in north-central Oklahoma consists of a series of discontinuous sand and shale bodies deposited in erosional topographic lows on the post-Hunton unconformity surface. Paleontological, mineralogical, and sedimentological evidence supports a marine depositional setting. Rapid changes in sandstone thickness and reservoir properties are characteristic of Misener sands. These sands were episodically deposited, fine upward, and commonly interfinger with an equivalent shale facies. The basal contact of the Misener sandstone bodies is erosional with the inclusion of shale, phosphate, and sandstone clasts in a medium-grained, dolomitic quartzarenite sandstone. Reservoir porosity is best developed in the poorer sorted, medium-grained, dolomitic quartzarenites of the channel facies. A mixed mineralogy sandstone is critical to the preservation of primary porosity and the development of secondary porosity. Well-sorted, fine-grained quartzarenite sandstones (nonchannel) have been extensively quartz cemented. Early dolomitization in the mixed mineralogy sandstones prevented quartz cementation and preserved primary porosity. Sandstones containing preserved primary porosity served as pathways for the movement of subsurface fluids. These fluids generated secondary porosity by the selective dissolution of glauconite, phosphate, and lithic grains. Significant post-hydrocarbon diagenesis in the form of bitumen precipitation, dedolomitization, and calcite cementation has occurred in the water zone of several Misener sandstone reservoirs. The occurrence of these diagenetic products in the oil column suggests post entrapment tilting of some reservoirs.
- OSTI ID:
- 5661123
- Report Number(s):
- CONF-8909245--
- Journal Information:
- AAPG Bulletin (American Association of Petroleum Geologists); (USA), Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (USA) Vol. 73:8; ISSN AABUD; ISSN 0149-1423
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020200* -- Petroleum-- Reserves
Geology
& Exploration
ALKALINE EARTH METAL COMPOUNDS
BITUMENS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATES
DIAGENESIS
DOLOMITE
FEDERAL REGION VI
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MINERAL RESOURCES
MINERALS
NORTH AMERICA
OKLAHOMA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PERMEABILITY
PETROLEUM DEPOSITS
POROSITY
RESERVOIR ROCK
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
TAR
USA