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Influence of coalbed characteristics and geology on methane draining.

Authors
Finfinger-GL; Prosser-LJ Jr.; Cervik-J
Source
SPE/DOE Symp on Unconventional Gas Recovery Pittsburgh, Pennsylvania, 1980 :319-324
Link
NIOSHTIC No.
10000648
Abstract
Methane drainage in advance of mining using horizontal holes continues to expand. Interpretation of coalbed characteristics and geology in relation to drilling procedures and gas flows will provide additional information for further development of this technique. A study conducted in the Pittsburgh coalbed at Bethlehem Mines Corp., Marianna Mine 58, showed the effect of coalbed discontinuities, such as clay veins and sandstone channels, on drilling of horizontal boreholes, and on gas flows. It has shown the need to adapt drilling techniques to the varying degrees of hardness encountered within the same coalbed.
Publication Date
19800101
Document Type
OP
Fiscal Year
1980
NTIS Accession No.
NTIS Price
Identifying No.
OP 38-80
NIOSH Division
PRC
Source Name
SPE/DOE Symp. on Unconventional Gas Recovery, Pgh., Pennsylvania, 1980, Spe Preprint 8964, PP. 319-324
State
PA
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