thumbnail

Structural controls on fractured coal reservoirs in the southern Appalachian Black Warrior foreland basin

Journal of Structural Geology

By:
, ,
DOI: 10.1016/j.jsg.2008.02.017

Links

Abstract

Coal is a nearly impermeable rock type for which the production of fluids requires the presence of open fractures. Basin-wide controls on the fractured coal reservoirs of the Black Warrior foreland basin are demonstrated by the variability of maximum production rates from coalbed methane wells. Reservoir behavior depends on distance from the thrust front. Far from the thrust front, normal faults are barriers to fluid migration and compartmentalize the reservoirs. Close to the thrust front, rates are enhanced along some normal faults, and a new trend is developed. The two trends have the geometry of conjugate strike-slip faults with the same ??1 direction as the Appalachian fold-thrust belt and are inferred to be the result of late pure-shear deformation of the foreland. Face cleat causes significant permeability anisotropy in some shallow coal seams but does not produce a map-scale production trend. ?? 2008 Elsevier Ltd. All rights reserved.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Structural controls on fractured coal reservoirs in the southern Appalachian Black Warrior foreland basin
Series title:
Journal of Structural Geology
DOI:
10.1016/j.jsg.2008.02.017
Volume
31
Issue:
9
Year Published:
2009
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
874
Last page:
886
Number of Pages:
13