Details:

Personal Author:
Elder, Curtis H. ; Irani, M. C.
Elder, Curtis H. ; Irani, M. C. Less -
Corporate Authors:
United States. Bureau of Mines.
Description:
"Two degasification test boreholes were drilled to depths of 1,238 and 1,212 feet on Bureau of Mines property at Bruceton, Pennsylvania, as part of the Bureau's long-range coal degasification program. The holes provided detailed geologic information and geologic sections, which were correlated with regional stratigraphic cross sections prepared by the Pennsylvania geological survey. Gas content determinations and coal analyses were made on the Upper Freeport, Middle Kittanning, Clarion, Brookville, and Mercer coalbeds; gas content of the coalbeds ranged from 53 to 165 cubic feet per ton. Formation pressure and gas flow tests were conducted on selected coalbed intervals in borehole 1; formation pressures ranged from 292 to 473 psig. The middle Kittanning coalbed was hydraulically stimulated using very heavy gelled water, but gas production remained low because gel residue and formation water inhibited the flow of gas. Gas contents in the Clarion, Upper Brookville, and Mercer coalbeds were anomalously low owing to the proximity of porous sandstones which act as reservoirs for gas migrating from coalbeds." - NIOSHTIC-2

NIOSHTIC no. 10000585


Subject:
[+]
Coal -- Geology.
Mine Gases.

Series:
Report of investigations (United States. Bureau of Mines) ; 8247
Document Type:
Report
Place as Subject:
Pennsylvania ; Pennsylvania -- Bruceton Region
Pennsylvania ; Pennsylvania -- Bruceton Region Less -
Collection(s):
National Institute for Occupational Safety and Health
Main Document Checksum:
[+]
urn:sha256:d74b84ce0ebb99103cc29a0f5d6a0a5a0ad9e0645f1c4dab3e38a9377c11d149
File Type:

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• No Additional Files

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