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Development of large diameter drilling equipment. Volume II: bit feature test

Authors
Schalge-R; Smith-D
Source
Spokane, WA: U.S. Department of the Interior, Bureau of Mines, Contract C-12482, 1981 Mar; :1-336
Link
NIOSHTIC No.
10003628
Abstract
The comparative test program provided data to evaluate three bit configureations: CUTTERS ONLY, JET ASSIST, and CUTTER PUMPS, in order to recommend one configuration for the LDDM. The bits were evaluated in terms of their cleanability; how much aggregate ...
Keywords
Comparative evaluations; Design; Drill bits; Drilling equipment; Experimental data; Lining processes; Performance testing; Rotary drills; Shaft excavations; Underground mining
Publication Date
19810301
Document Type
CP; Final Contract Report
Fiscal Year
1981
NTIS Accession No.
ET/12482-1
NTIS Price
A16
Identifying No.
Contract-C-12482
NIOSH Division
SRC
Source Name
Spokane, WA: U.S. Department of the Interior, Bureau of Mines, Contract C-12482
State
WA; OK
Performing Organization
Fenix and Scisson, Inc., Tulsa, OK
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