Details:

Personal Author:
Krickovic, Stephen ; Kalasky, J. D.
Krickovic, Stephen ; Kalasky, J. D. Less -
Corporate Authors:
United States. Bureau of Mines.
Description:
"A degasification experiment was conducted in a Pocahontas No. 3 Coalbed mine in Virginia. It involved (1) drilling holes in the coalbed in the outside headings of a set of five being developed in virgin area and (2) conducting a methane emission rate study as mining progressed and additional holes were drilled. Degasification from all drill holes except the longest in each of the outside headings and the first three drilled (excluding the in situ pressure hole) was erratic and inconsequential in methane emission rates. The two longest holes liberated 66 and 79 cfm of methane, which is significant for the coalbed, but such quantity lasted a relatively short time; the first three were uniform but low in methane emission." - NIOSHTIC-2

NIOSHTIC no. 10000619


Subject:
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Coalbed Methane Drainage
Methane
Mine Gases
Mine Ventilation

Series:
Report of investigations (United States. Bureau of Mines) ; 7703
Document Type:
Report
Place as Subject:
Virginia
Collection(s):
National Institute for Occupational Safety and Health
Main Document Checksum:
[+]
urn:sha256:65bb1827ea7a536c60e8305feeddc7163ef16636318041fe0d40867bbc0aa804
File Type:

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