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Evaluation of Horizontal Drilling Techniques in Coalbeds.

Authors
Williamson-TN
Source
NTIS: PB/212-746/2 Available for Reference At Bureau Libraries :131 pages
Link
NIOSHTIC No.
10000726
Abstract
The purpose of this study was to provide guidelines for meaningful research leading toward improved drilling devices and techniques. The evaluation of the technology indicates clearly that those techniques now in use by the Bureau of Mines represent the most advanced state of the art currently available for the Bureau's purposes and conditions. It also shows that much of the advance in the current state of the art in technology has been the result of the Bureau's activities. It indicates that further advances can and should be reached through research by the Bureau and provides guidance for such activity. The first section describes the conditions under which a drill must work. The second section discusses the state of the art of drilling as it relates to the problem. The third section describes the problem.
Publication Date
19700101
Document Type
CP; Final Contract Report;
Fiscal Year
1970
NTIS Accession No.
PB-212746/2
NTIS Price
A08
Identifying No.
OFR 34-72
NIOSH Division
PRC;
Source Name
NTIS: PB/212-746/2; Available for Reference At Bureau Libraries
Performing Organization
Jacobs and Associates
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