Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

The Advantages of Inhole Motor Drilling.

Authors
Kravits-SJ; Stainato-A; Finfinger-GL
Source
Coal Min 1984 Nov; 21(11):44-46
Link
NIOSHTIC No.
10004281
Abstract
The Bureau of Mines pioneered the rotary drilling technology of horizontal boreholes into coal as an effective method of removing methane from coalbeds. To date, more than 10 billion cu ft of methane has been removed, consistently reducing methane emissions at active faces by at least 50%. Although horizontal boreholes have been drilled to depths greater than 2,500 ft, inherent problems have prevented universal acceptance of this technique. This paper presents a discussion on the advantages of inhole motor drilling compared with rotary drilling.
Publication Date
19841101
Document Type
OP;
Fiscal Year
1985
NTIS Accession No.
NTIS Price
Identifying No.
OP 154-84
Issue of Publication
11
NIOSH Division
PRC;
Source Name
Coal Min., V. 21, No. 11, Nov. 12, 1984, PP. 44-46
TOP