Depositional model and diagenetic history of Frisco Formation (Lower Devonian) in central Oklahoma

Conference · Sat Aug 01 04:00:00 EDT 1987 · AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States)

OSTI ID:5905529

Medlock, P L

The Lower Devonian Frisco Limestone is a prolific reservoir within the Hunton Group. The giant Fitts and West Edmond fields produce from the Frisco, as do other small fields in the eastern Anadarko basin, central Oklahoma, and western Arkoma basin. A crinoidal-mudmound complex is the inferred depositional model, based on geometry and lithotypes. Mound growth was probably initiated on paleostructural highs. Facies in the mud-mound complex include mound-core, flank/intermound, and mound-crest. The mound-core facies, consisting of poorly sorted wackestones and mudstones, formed as thickets of crinoid-baffled lime mud. The flank/intermound facies, which is moderately sorted packstones, formed in areas of low crinoid population, allowing current activity to winnow much of the lime mud to form carbonate sand. The mound-crest facies, which is predominantly grainstones with some packstones, was deposited as a sand sheet as the mound reached active wave base. Unlike the dolomitized reservoirs of other Hunton formations, the Frisco is a limestone reservoir that underwent an intricate, multiphase, diagenetic history. Although secondary porosity developed during subaerial exposure. Depositional facies exhibited considerable control on porosity distribution. Solution-enhanced primary porosity and secondary vuggy porosity are the most significant types.

• Research Organization: Masera Corp., Tulsa, OK
• OSTI ID: 5905529
• Report Number(s): CONF-870916-
• Conference Information: Journal Name: AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States) Journal Volume: 71:8
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
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& Exploration
CARBONATE ROCKS
DEPOSITION
DEVONIAN PERIOD
DIAGENESIS
FEDERAL REGION VI
FOSSILS
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
GEOLOGIC STRUCTURES
GEOLOGIC TRAPS
LIMESTONE
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OKLAHOMA
PALEOZOIC ERA
PETROLEUM DEPOSITS
POROSITY
RESERVOIR ROCK
RESOURCES
ROCKS
SEDIMENTARY BASINS
SEDIMENTARY ROCKS
USA