Comparison of Rotary and In-Hole Motor Techniques for Drilling Horizontal Boreholes in Coal

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Comparison of Rotary and In-Hole Motor Techniques for Drilling Horizontal Boreholes in Coal

Public Domain

01/01/1985

Details

Description:

This Bureau of Mines report describes and compares the procedures, capital investments, and operating costs of rotary and in-hole motor drilling techniques used to drain methane gas from the Pittsburgh coalbed in an underground mine located in southwest...
Document Type:

Report
CIO:

NIOSH
Division:

NIOSH Mining
Location:

North America
NIOSHTIC Number:

nn:na
Collection(s):

National Institute for Occupational Safety and Health
Main Document Checksum:

urn:sha-512:504bff911ecc82b86d3397a69bc49c6cdafc6e8566f15c3ae1afea07087aad64afffc6f9446eccf9f89279aa387cf0da5079fccb5fbb3e6991426be9c55e8ba2
Download URL:

https://stacks.cdc.gov/view/cdc/161842/cdc_161842_DS1.pdf
File Type:

[PDF - 2.35 MB ]

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Details

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