CA2043695A1 - Drilling tool for sinking wells in underground rock formations - Google Patents

Drilling tool for sinking wells in underground rock formations

Info

Publication number
CA2043695A1
CA2043695A1 CA 2043695 CA2043695A CA2043695A1 CA 2043695 A1 CA2043695 A1 CA 2043695A1 CA 2043695 CA2043695 CA 2043695 CA 2043695 A CA2043695 A CA 2043695A CA 2043695 A1 CA2043695 A1 CA 2043695A1
Authority
CA
Canada
Prior art keywords
tool
drive shaft
drilling tool
drilling
rock formations
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2043695
Other languages
French (fr)
Other versions
CA2043695C (en
Inventor
Volker Krueger
Hans-Juergen Faber
Dagobert Feld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baker Hughes Holdings LLC
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE4017761A external-priority patent/DE4017761A1/en
Application filed by Individual filed Critical Individual
Publication of CA2043695A1 publication Critical patent/CA2043695A1/en
Application granted granted Critical
Publication of CA2043695C publication Critical patent/CA2043695C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

The present invention provides an apparatus for orienting a drilling tool in a borehole, and which employs drilling mud pressure to selectively hydraulically move force-transmitting elements associated with pressure members on the exterior of the tool against the wall of the borehole, or to radially shift the drive shaft of the drilling tool in the tool casing. The tool may also include a drilling mud powered centering mechanism for maintaining the tool or the drive shaft within the tool in a centered basic position. A tool may include both pressure members and a shiftable drive shaft, as well as centering mechanisms to act on both the pressure members and the drive shaft.
CA 2043695 1990-06-01 1991-05-31 Drilling tool for sinking wells in underground rock formations Expired - Lifetime CA2043695C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEP4017761.0 1990-06-01
DE4017761A DE4017761A1 (en) 1990-06-01 1990-06-01 DRILLING TOOL FOR DRILLING HOLES IN SUBSTRATE ROCK INFORMATION
EP90115963.2 1990-08-21
EP90115963A EP0459008B1 (en) 1990-06-01 1990-08-21 Drilling tool for directional drilling

Publications (2)

Publication Number Publication Date
CA2043695A1 true CA2043695A1 (en) 1991-12-02
CA2043695C CA2043695C (en) 2001-12-04

Family

ID=25893777

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2043695 Expired - Lifetime CA2043695C (en) 1990-06-01 1991-05-31 Drilling tool for sinking wells in underground rock formations

Country Status (2)

Country Link
CA (1) CA2043695C (en)
NO (1) NO301900B1 (en)

Also Published As

Publication number Publication date
NO301900B1 (en) 1997-12-22
NO912127D0 (en) 1991-06-03
CA2043695C (en) 2001-12-04
NO912127L (en) 1991-12-02

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry