Report of Investigations 9500: Evaluation of Alternative Placement of Longwall Gob Gas Ventholes for Optimum Performance

Diamond, William P.; Jeran, Paul W.; Trevits, Michael A.

i

Report of Investigations 9500: Evaluation of Alternative Placement of Longwall Gob Gas Ventholes for Optimum Performance

Public Domain

1994/01/01
By Diamond, William P. ; Jeran, Paul W. ; Trevits, Michael A.
Series: Mining Publications

File Language:

English

Details

Journal Article:

Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9500
Personal Author:

Diamond, William P. ; Jeran, Paul W. ; Trevits, Michael A.
Description:

In this U.S. Bureau of Mines study, production trends have been analyzed for 82 gob gas ventholes on 7 longwall panels in the Lower Kittanning Coalbed, Pennsylvania. The variability of gas production from individual holes can be attributed to several factors, including completion practices and problems, the extent of fracture development in the strata above the extracted panel, water production, and location on the panel. Of particular significance is hole location. Holes on the ends of the panels, where overburden strata are in tension because of the support of the surrounding pillars, were generally the highest and longest producers. [Description provided by NIOSH]
Subjects:

Coal Coal Mining Mining Occupational Health Safety
Keywords:

Methane; Mine-ventilation; Boreholes; Coal-mining; Mine-gases; Longwall-mining; Mine-safety; Mineral-industries
Source:

Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9500, 1994 Jan; :1-14
Series:

Mining Publications ; NIOSH Numbered Publications
Subseries:

Report of Investigations
Document Type:

Text
Genre:

Report
Place as Subject:

OSHA Region 3 ; Pennsylvania
CIO:

National Institute for Occupational Safety and Health (NIOSH)
Division:

PRC - Pittsburgh Research Center
Topic:

Workplace Safety & Health
Location:

North America
Pages in Document:

20 pdf pages
NIOSHTIC Number:

nn:10005159
NTIS Accession Number:

PB94-171949
Federal Fiscal Year:

1994
Peer Reviewed:

False
Collection(s):

National Institute for Occupational Safety and Health
Main Document Checksum:

urn:sha-512:7238f10d8f5c8f1d62add121c9344ea74d68d1dbd19ba76c65cc84061e542ae69f435e506d7377f1cb179a76518279d347af1cc3101c981907c4e6c914215366
Download URL:

https://stacks.cdc.gov/view/cdc/9534/cdc_9534_DS1.pdf
File Type:

[PDF - 1.00 MB ]

File Language:

English

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