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Title: A SMALL-ANGLE DRILL-HOLE WHIPSTOCK

Abstract

A small angle whipstock is described for accurately correcting or deviating a drill hole by a very small angle. The whipstock is primarily utilized when drilling extremely accurate, line-of-slight test holes as required for diagnostic studies related to underground nuclear test shots. The invention is constructed of a length of cylindrical pipe or casing, with a whipstock seating spike extending from the lower end. A wedge-shaped segment is secured to the outer circumference of the upper end of the cylinder at a position diametrically opposite the circumferential position of the spike. Pin means are provided for affixing the whipstock to a directional drill bit and stem to alloy orienting and setting the whipstock properly in the drill hole. (AEC)

Inventors:
; ;
Issue Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4723072
Patent Number(s):
3075583
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-17-008582
NSA Number:
NSA-17-008582
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-63
Country of Publication:
United States
Language:
English
Subject:
INSTRUMENTS AND INSTRUMENTATION; CONTROL; CYLINDERS; NUCLEAR EXPLOSIONS; PIPES; TESTING; TOOLS

Citation Formats

Nielsen, D.E., Olsen, J.L., and Bennett, W.P. A SMALL-ANGLE DRILL-HOLE WHIPSTOCK. United States: N. p., 1963. Web.
Nielsen, D.E., Olsen, J.L., & Bennett, W.P. A SMALL-ANGLE DRILL-HOLE WHIPSTOCK. United States.
Nielsen, D.E., Olsen, J.L., and Bennett, W.P. Tue . "A SMALL-ANGLE DRILL-HOLE WHIPSTOCK". United States.
@article{osti_4723072,
title = {A SMALL-ANGLE DRILL-HOLE WHIPSTOCK},
author = {Nielsen, D.E. and Olsen, J.L. and Bennett, W.P.},
abstractNote = {A small angle whipstock is described for accurately correcting or deviating a drill hole by a very small angle. The whipstock is primarily utilized when drilling extremely accurate, line-of-slight test holes as required for diagnostic studies related to underground nuclear test shots. The invention is constructed of a length of cylindrical pipe or casing, with a whipstock seating spike extending from the lower end. A wedge-shaped segment is secured to the outer circumference of the upper end of the cylinder at a position diametrically opposite the circumferential position of the spike. Pin means are provided for affixing the whipstock to a directional drill bit and stem to alloy orienting and setting the whipstock properly in the drill hole. (AEC)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1963},
month = {1}
}