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
- 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}
}