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Deviation Control for Bored-raise Pilot Holes.

Authors
Callas NP
Source
NTIS: PB/86-147196 :109 pages
Link
NIOSHTIC No.
10004955
Abstract
This report presents research results obtained in the investigation of deviation control of boreholes in the rotary drilling process. The approach taken in this research is the passive method of placing stabilizers in the bottom-hole assembly to control deviation. Extensive use was made of the drill string mechanics theories of lubinski and woods. Analog, digital, and hybrid solutions to a variety of boundary value problems were investigated to determine the best models for bottom-hole assemblies. Field drilling data were analyzed, and the results obtained from various models were compared with the actual drilling results. Various accomplishments of this work have been published in Bureau of Mines Information Circular 8891.
Publication Date
19810101
Document Type
CP; Final Contract Report;
Fiscal Year
1981
NTIS Accession No.
PB86-147196
NTIS Price
A07
Identifying No.
OFR 121-85
NIOSH Division
SRC;
Source Name
NTIS: PB/86-147196
State
CO;
Performing Organization
Colorado School of Mines
Page last reviewed: May 11, 2023
Content source: National Institute for Occupational Safety and Health Education and Information Division