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Effects of hydraulic stimulation on coalbeds and associated strata.

Authors
Elder-CH
Source
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8260, 1977 Jan; :1-20
NIOSHTIC No.
10000587
Abstract
In studies conducted by the Bureau of Mines, two test areas were hydraulically stimulated and exposed by mining: one in the Pittsburgh coalbed at the Vesta No. 5 Mine, Washington County, Pennsylvania; and one in the Illinois No. 6 Coalbed at the Inland Mine, Jefferson County, Illinois. Induced fractures were contained totally within the coalbed with no adverse effect on the stability of associated rock strata. Induced fractures were vertical and were propagated normal to the direction of least residual tectonic stress. Gas production was increased fivefold to twentyfold by hydraulic stimulation.
Keywords
Mine-gases; Mining-industry; Explosive-gases; Explosive-atmospheres; Underground-mining; Coal-mining; Control-technology; Engineering-controls; Explosion-prevention; Explosive-hazards
Publication Date
19770101
Document Type
IH; Report of Investigations
Fiscal Year
1977
NTIS Accession No.
PB-278561
NTIS Price
A03
Identifying No.
RI-8260
NIOSH Division
PRC
Source Name
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8260
State
IL; PA
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