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Drilling and Casing a 96-Inch Id by 2371 Foot Deep Shaft in Oil Shale. Volume 1.

Authors
Gibbs-J; Greenwood-L; Mitchell-M; Grovenburg-D
Source
For Reference Only At Bureau Libraries :560 pages
Link
NIOSHTIC No.
10009474
Abstract
To provide an initial approach to the deposits of oil shale, nahcolite, and dawsonite in the central area of the Piceance Creek Basin in northwestern Colorado, the Bureau of Mines and associated contractor personnel drilled and cased a 96-inch-id shaft to a depth of 2,371 feet. The shaft was constructed using "big hole" drilling techniques and succeeded in giving access to previously inaccessible deposits of the minerals. This report documents the construction from its beginning in January 1977, to its completion in January 1978. Procedures used and problems encountered are discussed in detail.
Publication Date
19780101
Document Type
CP; Final Contract Report;
Fiscal Year
1978
NTIS Accession No.
NTIS Price
Identifying No.
OFR 9(1)-79
Source Name
For Reference Only At Bureau Libraries
State
CO;
Performing Organization
Fenix & Scisson, Inc.
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