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North Blowhorn Creek oil field - a stratigraphic trap in Black Warrior basin of Alabama

Conference · · Am. Assoc. Pet. Geol., Bull.; (United States)
OSTI ID:6648186
The Black Warrior basin of northwestern Alabama contains shallow oil and gas prospects. To date more than 1000 wells have been drilled in the region and more than 90 petroleum fields and pools have been discovered. Mississippian sandstone reservoirs are the most productive horizons for hydrocarbons in the basin, and the Carter sandstone is the most prolific. Identification of stratigraphic traps will enhance petroleum exploration by delineating sand body geometry. Definition reservoir thickness and extent is critical for identifying successful prospects. The North Blowhorn Creek field in Lamar County, Alabama, which produces from the Carter sandstone, is a prime example of a stratigraphic trap. As of March 1983, this field has produced a total of 657,678 bbl of oil and 972,3 mmcf of gas. The Carter sandstone there was deposited as part of a delta which prograded from northwest to southeast across the Black Warrior basin of Alabama. Primary and secondary porosity in the Carter sandstone ranges from 10 to 16% with an average of 13.5%. Permeability ranges from approximately .01-29 md with an average of 10 md. The Parkwood shales interbedded with the Carter sandstone are probably the primary petroleum source beds of the Mississippian hydrocarbons.
Research Organization:
State Oil and Gas Board of Alabama, University
OSTI ID:
6648186
Report Number(s):
CONF-8405216-
Conference Information:
Journal Name: Am. Assoc. Pet. Geol., Bull.; (United States) Journal Volume: 68:4
Country of Publication:
United States
Language:
English