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Class Information
Number: 175/81
Name: Boring or penetrating the earth > Tool shaft advanced relative to guide insertable in inaccessible hole to change direction of advance > With anchor for guide engaging hole side wall
Description: Apparatus in which the means changing the direction of advance has combined therewith means to engage or penetrate a side wall of the hole to resist movement of the direction changing means either longitudinally or radially of the hole.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7575050 |
Method and apparatus for a downhole excavation in a wellbore |
Aug. 18, 2009 |
| 7484573 |
Slip grip drilling tool |
Feb. 3, 2009 |
| 7448446 |
Thru tubing tool and method |
Nov. 11, 2008 |
| 7178589 |
Thru tubing tool and method |
Feb. 20, 2007 |
| 6889781 |
Horizontal directional drilling in wells |
May. 10, 2005 |
| 6880631 |
Whipstock casing milling system |
Apr. 19, 2005 |
| 6848504 |
Apparatus and method to complete a multilateral junction |
Feb. 1, 2005 |
| 6843314 |
Retrievable through-tubing whipstock apparatus having fluid-responsive pivotal anchoring members |
Jan. 18, 2005 |
| 6786283 |
Methods and associated apparatus for drilling and completing a wellbore junction |
Sep. 7, 2004 |
| 6761217 |
Downhole latch assembly and method of using the same |
Jul. 13, 2004 |
| 6719045 |
Whipstock assembly |
Apr. 13, 2004 |
| 6712144 |
Method for drilling multilateral wells with reduced under-reaming and related device |
Mar. 30, 2004 |
| 6668945 |
Method and apparatus for milling a window in a well casing or liner |
Dec. 30, 2003 |
| 6591905 |
Orienting whipstock seat, and method for seating a whipstock |
Jul. 15, 2003 |
| 6588542 |
Borehole tool actuating mechanism |
Jul. 8, 2003 |
| 6588517 |
Boring apparatus |
Jul. 8, 2003 |
| 6554062 |
Anchor apparatus and method |
Apr. 29, 2003 |
| 6550553 |
Boring apparatus |
Apr. 22, 2003 |
| 6464002 |
Whipstock assembly |
Oct. 15, 2002 |
| 6457525 |
Method and apparatus for completing multiple production zones from a single wellbore |
Oct. 1, 2002 |
| 6419012 |
Deviated borehole drilling assembly |
Jul. 16, 2002 |
| 6419010 |
Deviated borehole drilling assembly |
Jul. 16, 2002 |
| 6378629 |
Boring apparatus |
Apr. 30, 2002 |
| 6371221 |
Coring bit motor and method for obtaining a material core sample |
Apr. 16, 2002 |
| 6334485 |
Deviated borehole drilling assembly |
Jan. 1, 2002 |
| 6315075 |
Borehole logging tool with anchoring mechanism |
Nov. 13, 2001 |
| 6283208 |
Orienting tool and method |
Sep. 4, 2001 |
| 6260623 |
Apparatus and method for utilizing flexible tubing with lateral bore holes |
Jul. 17, 2001 |
| 6220372 |
Apparatus for drilling lateral drainholes from a wellbore |
Apr. 24, 2001 |
| 6202761 |
Directional drilling method and apparatus |
Mar. 20, 2001 |
| 6189616 |
Expandable wellbore junction |
Feb. 20, 2001 |
| 6186233 |
Down hole assembly and method for forming a down hole window and at least one keyway in communication with the down hole window for use in multilateral wells |
Feb. 13, 2001 |
| 6073691 |
Torque resistant retrievable whipstock |
Jun. 13, 2000 |
| 6070667 |
Lateral wellbore connection |
Jun. 6, 2000 |
| 6035935 |
Method for establishing connectivity between lateral and parent wellbores |
Mar. 14, 2000 |
| 6035939 |
Wellbore anchor system |
Mar. 14, 2000 |
| 6012516 |
Deviated borehole drilling assembly |
Jan. 11, 2000 |
| 5971073 |
Methods of completing a subterranean well and associated apparatus |
Oct. 26, 1999 |
| 5915474 |
Multiple drain drilling and production apparatus |
Jun. 29, 1999 |
| 5909770 |
Retrievable whipstock |
Jun. 8, 1999 |
| 5894889 |
One trip milling system |
Apr. 20, 1999 |
| 5887668 |
Wellbore milling-- drilling |
Mar. 30, 1999 |
| 5884698 |
Whipstock assembly |
Mar. 23, 1999 |
| 5878818 |
Mechanical set anchor with slips pocket |
Mar. 9, 1999 |
| 5860474 |
Through-tubing rotary drilling |
Jan. 19, 1999 |
| 5845710 |
Methods of completing a subterranean well |
Dec. 8, 1998 |
| 5829531 |
Mechanical set anchor with slips pocket |
Nov. 3, 1998 |
| 5816324 |
Whipstock accelerator ramp |
Oct. 6, 1998 |
| 5806596 |
One-trip whipstock setting and squeezing method |
Sep. 15, 1998 |
| 5806600 |
Whipstock system |
Sep. 15, 1998 |
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