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

Title: Hydromechanical drilling device

Abstract

A hydromechanical drilling tool which combines a high pressure water jet drill with a conventional roller cone type of drilling bit. The high pressure jet serves as a tap drill for cutting a relatively small diameter hole in advance of the conventional bit. Auxiliary laterally projecting jets also serve to partially cut rock and to remove debris from in front of the bit teeth thereby reducing significantly the thrust loading for driving the bit.

Inventors:
 [1]
  1. Rolla, MO
Issue Date:
Research Org.:
Missouri Univ., Rolla (USA)
OSTI Identifier:
863156
Patent Number(s):
4106577
Assignee:
Curators of University of Missouri (Columbia, MO)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
DOE Contract Number:  
EY-76-S-02-2677
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
hydromechanical; drilling; device; tool; combines; pressure; water; jet; drill; conventional; roller; cone; type; bit; serves; tap; cutting; relatively; diameter; advance; auxiliary; laterally; projecting; jets; serve; partially; cut; rock; remove; debris; front; teeth; reducing; significantly; thrust; loading; driving; pressure water; water jet; reducing significantly; remove debris; hydromechanical drilling; /175/

Citation Formats

Summers, David A. Hydromechanical drilling device. United States: N. p., 1978. Web.
Summers, David A. Hydromechanical drilling device. United States.
Summers, David A. Sun . "Hydromechanical drilling device". United States. https://www.osti.gov/servlets/purl/863156.
@article{osti_863156,
title = {Hydromechanical drilling device},
author = {Summers, David A},
abstractNote = {A hydromechanical drilling tool which combines a high pressure water jet drill with a conventional roller cone type of drilling bit. The high pressure jet serves as a tap drill for cutting a relatively small diameter hole in advance of the conventional bit. Auxiliary laterally projecting jets also serve to partially cut rock and to remove debris from in front of the bit teeth thereby reducing significantly the thrust loading for driving the bit.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

Patent:

Save / Share: