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Class Information
Number: 166/55.7
Name: Wells > Means for perforating, weakening, bending or separating pipe at an unprepared point > Cutter rotates circumferentially of pipe > Internal
Description: Devices in which the cutting tool is located inside the pipe and advances outwardly for cutting.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7383876 |
Cutting tool for use in a wellbore tubular |
Jun. 10, 2008 |
| 7373983 |
Downhole milling machine and method of use |
May. 20, 2008 |
| 7308940 |
Flexible wellbore broach |
Dec. 18, 2007 |
| 7249918 |
Cutting machine |
Jul. 31, 2007 |
| 7217065 |
Modular pipe breaking assembly and method |
May. 15, 2007 |
| 7191835 |
Disengagable burr mill |
Mar. 20, 2007 |
| 7188674 |
Downhole milling machine and method of use |
Mar. 13, 2007 |
| 7178598 |
Device for a hydraulic cutting tool |
Feb. 20, 2007 |
| 7168497 |
Downhole sealing |
Jan. 30, 2007 |
| 7096950 |
Combined milling and scraping tool |
Aug. 29, 2006 |
| 7090019 |
Casing cutter |
Aug. 15, 2006 |
| 7077206 |
Method and apparatus involving an integrated or otherwise combined exit guide and section mill for sidetracking or directional drilling from existing wellbores |
Jul. 18, 2006 |
| 7063155 |
Casing cutter |
Jun. 20, 2006 |
| 6964303 |
Horizontal directional drilling in wells |
Nov. 15, 2005 |
| 6920923 |
Section mill for wells |
Jul. 26, 2005 |
| 6915853 |
Method and device for perforating a portion of casing in a reservoir |
Jul. 12, 2005 |
| 6880631 |
Whipstock casing milling system |
Apr. 19, 2005 |
| 6868901 |
Tubular cutting tool |
Mar. 22, 2005 |
| 6843320 |
Downhole tool with ratcheting swivel and method |
Jan. 18, 2005 |
| 6834725 |
Reinforced swelling elastomer seal element on expandable tubular |
Dec. 28, 2004 |
| 6805196 |
Expander |
Oct. 19, 2004 |
| 6786282 |
Milling apparatus and method for a well |
Sep. 7, 2004 |
| 6752215 |
Method and apparatus for expanding and separating tubulars in a wellbore |
Jun. 22, 2004 |
| 6725927 |
Method and system for avoiding damage to behind-casing structures |
Apr. 27, 2004 |
| 6702031 |
Anchoring device removal method and apparatus |
Mar. 9, 2004 |
| 6629565 |
Abandonment and retrieval apparatus and method |
Oct. 7, 2003 |
| 6599067 |
Apparatus for removing pressure tubes |
Jul. 29, 2003 |
| 6578635 |
Lining removal method, system and components thereof |
Jun. 17, 2003 |
| 6554073 |
Method and apparatus for removing wellhead assemblies |
Apr. 29, 2003 |
| 6516878 |
Downhole tension swivel sub |
Feb. 11, 2003 |
| 6431270 |
Downhole tools with a mobility device |
Aug. 13, 2002 |
| 6401821 |
Method and apparatus involving an integrated or otherwise combined exit guide and section mill for sidetracking or directional drilling from existing wellbores |
Jun. 11, 2002 |
| 6386797 |
Conduit liner cutter |
May. 14, 2002 |
| 6334487 |
Valve assembly |
Jan. 1, 2002 |
| 6330919 |
Method of removing wellhead assemblies and cutting assembly for use therein |
Dec. 18, 2001 |
| 6267179 |
Method and apparatus for accurate milling of windows in well casings |
Jul. 31, 2001 |
| 6183165 |
Process and device for separation of pipes or columns fixed in the ground |
Feb. 6, 2001 |
| 6155349 |
Flexible wellbore mill |
Dec. 5, 2000 |
| 6125929 |
Casing cutter blade support sleeve |
Oct. 3, 2000 |
| 6116336 |
Wellbore mill system |
Sep. 12, 2000 |
| 6109347 |
One-trip, thru-tubing, window-milling system |
Aug. 29, 2000 |
| 6056049 |
Wellhead retrieving tool |
May. 2, 2000 |
| 6056056 |
Whipstock mill |
May. 2, 2000 |
| 6031371 |
Self-powered pipeline vehicle for carrying out an operation on a pipeline and method |
Feb. 29, 2000 |
| 6029745 |
Casing cutting and retrieving system |
Feb. 29, 2000 |
| 6024168 |
Wellborne mills & methods |
Feb. 15, 2000 |
| 6012526 |
Method for sealing the junctions in multilateral wells |
Jan. 11, 2000 |
| 5960882 |
Dual-ended apparatus for cutting openings in lined conduits |
Oct. 5, 1999 |
| 5944101 |
Apparatus for milling a window in well tubular |
Aug. 31, 1999 |
| 5899796 |
Rotary grinder assembly and a cutter robot |
May. 4, 1999 |
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