skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

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:
OSTI Identifier:
4723072
Patent Number(s):
3075583
Assignee:
U.S. Atomic Energy Commission
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
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}
}