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Class Information
Number: 166/241.1
Name: Wells > Guide for device or conduit
Description: Apparatus comprising positioning means attached to and projecting laterally beyond (1) a tool; (2) a fluid moving structure; or (3) a fluid conveying means (i.e., tubing) to centralize within the well the tool, fluid moving structure, or fluid conveying means.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7431535 |
Clamp for anchoring production tube, electrohydraulic hose and electric cable simultaneously |
Oct. 7, 2008 |
| 7334642 |
Constant force actuator |
Feb. 26, 2008 |
| 7311154 |
Line slack compensator |
Dec. 25, 2007 |
| 7275594 |
Stab guide |
Oct. 2, 2007 |
| 7182131 |
Dual diameter and rotating centralizer/sub and method |
Feb. 27, 2007 |
| 7174958 |
Drill string member |
Feb. 13, 2007 |
| 7156171 |
Dual diameter and rotating centralizer/sub |
Jan. 2, 2007 |
| 7143848 |
Downhole tool |
Dec. 5, 2006 |
| 7140432 |
Dual diameter and rotating centralizer/sub and method |
Nov. 28, 2006 |
| 7121349 |
Wellhead protector |
Oct. 17, 2006 |
| 7104318 |
Self-contained centralizer system |
Sep. 12, 2006 |
| 7071697 |
Centralizer including measurement means |
Jul. 4, 2006 |
| 6968897 |
Anti-rotation tool |
Nov. 29, 2005 |
| 6920936 |
Constant force actuator |
Jul. 26, 2005 |
| 6907326 |
Autonomous surf zone line charge deployment system |
Jun. 14, 2005 |
| 6883611 |
Sealed multilateral junction system |
Apr. 26, 2005 |
| 6845816 |
ADI centralizer |
Jan. 25, 2005 |
| 6688409 |
Friction reducing tool and method for its use in a wellbore |
Feb. 10, 2004 |
| 6681853 |
Downhole anti-rotation tool |
Jan. 27, 2004 |
| 6666267 |
Downhole tools |
Dec. 23, 2003 |
| 6644409 |
Riser guide system |
Nov. 11, 2003 |
| 6637511 |
Borehole casing centralizer |
Oct. 28, 2003 |
| 6629568 |
Bi-directional grip mechanism for a wide range of bore sizes |
Oct. 7, 2003 |
| 6615921 |
Apparatus and method for remote adjustment of drill string centering to prevent damage to wellhead |
Sep. 9, 2003 |
| 6561280 |
Method of injecting tubing down pipelines |
May. 13, 2003 |
| 6516877 |
Sucker rod protector |
Feb. 11, 2003 |
| 6516900 |
Apparatus for directional drilling |
Feb. 11, 2003 |
| 6484803 |
Dual diameter centralizer/sub and method |
Nov. 26, 2002 |
| 6464013 |
Oil well casing centralizer coupling |
Oct. 15, 2002 |
| 6453998 |
Progressive lock integral joint centralizer |
Sep. 24, 2002 |
| 6454000 |
Cavity well positioning system and method |
Sep. 24, 2002 |
| 6435275 |
Casing centralizer |
Aug. 20, 2002 |
| 6425442 |
Anti-rotation device for use with well tools |
Jul. 30, 2002 |
| 6394186 |
Apparatus for remote adjustment of drill string centering to prevent damage to wellhead |
May. 28, 2002 |
| 6374914 |
Duel completion bop centralizer |
Apr. 23, 2002 |
| 6374918 |
In-tubing wellbore sidetracking operations |
Apr. 23, 2002 |
| 6367556 |
Multiple configuration centralizer device and method for using same |
Apr. 9, 2002 |
| 6354375 |
Lateral well tie-back method and apparatus |
Mar. 12, 2002 |
| 6343657 |
Method of injecting tubing down pipelines |
Feb. 5, 2002 |
| 6293347 |
Sleeve and method of use for preventing polish rod scoring by a pump jack carrier structure |
Sep. 25, 2001 |
| 6283205 |
Polymeric centralizer |
Sep. 4, 2001 |
| 6273189 |
Downhole tractor |
Aug. 14, 2001 |
| 6209638 |
Casing accessory equipment |
Apr. 3, 2001 |
| 6173773 |
Orienting downhole tools |
Jan. 16, 2001 |
| 6167915 |
Well pump electrical cable with internal bristle support |
Jan. 2, 2001 |
| 6092593 |
Apparatus and methods for deploying tools in multilateral wells |
Jul. 25, 2000 |
| 6000469 |
Self aligning stuffing box and guide bushing assembly |
Dec. 14, 1999 |
| 5937955 |
Method and apparatus for sealing a well bore and sidetracking a well from the well bore |
Aug. 17, 1999 |
| 5908072 |
Non-metallic centralizer for casing |
Jun. 1, 1999 |
| 5896925 |
Tool protection guide |
Apr. 27, 1999 |
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