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The offset well test an engineering study of Devonian shale production characteristics

Conference · · Proc., Intersoc. Energy Convers. Eng. Conf.; (United States)
OSTI ID:5497982
A reservoir interference test was conducted in an established shale gas field to quantitively determine the gas production characteristics of the naturally fractured Devonian shale formation. The test utilized an established producing well and two newly drilled monitoring wells offsetting the producer on the secondary and primary regional fracture trends. The test was located in Meigs County, Ohio, and addressed investigation of the following reservoir properties: flow characteristics of gas, orientation and distribution of natural fractures, storage and release mechanisms of gas, and impact of directional flow on production practices. Test results indicate extreme reservoir permeability anisotropy, suggesting that the preferential well drainage pattern of the fractured shale is elliptical. Virtually all of the free gas is stored sorbed in the matrix, and natural fractures primarily provide conduits for gas transport. Study findings impact infill drilling considerations and overall gas recovery efficiency from fractured shale.
Research Organization:
U.S. Department of Energy, Morgantown, West Virginia
OSTI ID:
5497982
Report Number(s):
CONF-820814-
Conference Information:
Journal Name: Proc., Intersoc. Energy Convers. Eng. Conf.; (United States) Journal Volume: 2
Country of Publication:
United States
Language:
English