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

Drilling and Casing a Large-diameter Shaft in the Piceance Creek Basin.

Authors
Utter-S; Hawkins-JE
Source
11th Oil Shale Symp 1978 Apr; :292-310
Link
NIOSHTIC No.
10001914
Abstract
The drilling and casing of a pioneer 8-foot-diameter vertical shaft to a depth of 2,371 feet in thick oil shale beds is described. Mining environmental research studies are planned from the shaft and samples of oil shale, nahcolite, and dawsonite will be mined. Results showed that a large-diameter shaft could be safely blind- bored through the aquifers in the basin. Problems with the drilling assembly, drilling mud, and welding of the casing can be solved with improved designs.
Publication Date
19780401
Document Type
OP;
Fiscal Year
1978
NTIS Accession No.
NTIS Price
Identifying No.
OP 55-79
NIOSH Division
DRC;
Source Name
11th Oil Shale Symp., April 12-14, 1978, Colorado School of Mines Press, 1978, PP. 292-310
State
CO;
TOP