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Petrologic factors controlling internal migration and explosion of petroleum from source rocks: Woodford-Chattanooga of Oklahoma and Arkansas

Conference · · Am. Assoc. Pet. Geol., Bull.; (United States)
OSTI ID:6364277
;

Upper Devonian-lower Mississippian Woodford-Chattanooga black shales are oil source beds throughout Oklahoma and much of W. Arkansas. Diagenesis in the Woodford-Chattanooga source section preceeded through the following relative time sequence: (1) silicification, chiefly by recrystallization of radiolarians, which probably followed the reaction conversion of amorphous opal-a to opal-ct to chert; (2) dolomitization of deep-basin opal or chert and shallow-platform carbonate laminae; (3) tectonic faulting, folding, and associated fracturing and stylolitization predominantly associated with the late Paleozoic arbuckle and Ouachita orogenesis; (4) late silicification and mineralization along fractures contemporaneous with (5) generation and expulsion of petroleum. The principal expulsion mechanism for these upper Devonian-lower Mississippian oil source rocks is whole-oil migration through coarser grained matrix pores, stylolites, and fractures.

OSTI ID:
6364277
Report Number(s):
CONF-8105250-
Journal Information:
Am. Assoc. Pet. Geol., Bull.; (United States), Journal Name: Am. Assoc. Pet. Geol., Bull.; (United States) Vol. 65:5; ISSN AAPGB
Country of Publication:
United States
Language:
English

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Related Subjects

04 OIL SHALES AND TAR SANDS
040201* -- Oil Shales & Tar Sands-- Site Geology-- (-1989)
ARKANSAS
BITUMINOUS MATERIALS
BLACK SHALES
CARBONACEOUS MATERIALS
CHATTANOOGA FORMATION
DEVONIAN PERIOD
DIAGENESIS
ENERGY SOURCES
FEDERAL REGION VI
FOSSIL FUELS
FUELS
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
MASS TRANSFER
MATERIALS
MINERAL RESOURCES
MISSISSIPPIAN PERIOD
NORTH AMERICA
OIL SHALE DEPOSITS
OIL SHALES
OKLAHOMA
OROGENESIS
PALEOZOIC ERA
PETROLEUM
RESOURCES
USA