| |
 |
|
Class Information
Number: 166/361
Name: Wells > Submerged well > Means removably connected to permanent well structure > Pipe cutting means
Description: Process or apparatus including means to subdivide one portion of the well tubing from another portion.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7389817 |
Riser control device |
Jun. 24, 2008 |
| 7325612 |
One-trip cut-to-release apparatus and method |
Feb. 5, 2008 |
| 7225873 |
Coiled tubing cutter |
Jun. 5, 2007 |
| 7178598 |
Device for a hydraulic cutting tool |
Feb. 20, 2007 |
| 7090019 |
Casing cutter |
Aug. 15, 2006 |
| 7086467 |
Coiled tubing cutter |
Aug. 8, 2006 |
| 7036599 |
Method and apparatus for cutting underwater structures |
May. 2, 2006 |
| 6926085 |
Safety system for underwater cutting |
Aug. 9, 2005 |
| 6834721 |
System for disconnecting coiled tubing |
Dec. 28, 2004 |
| 6679328 |
Reverse section milling method and apparatus |
Jan. 20, 2004 |
| 6629565 |
Abandonment and retrieval apparatus and method |
Oct. 7, 2003 |
| 6601650 |
Method and apparatus for replacing BOP with gate valve |
Aug. 5, 2003 |
| 6554073 |
Method and apparatus for removing wellhead assemblies |
Apr. 29, 2003 |
| 6439313 |
Downhole machining of well completion equipment |
Aug. 27, 2002 |
| 6386290 |
System for accessing oil wells with compliant guide and coiled tubing |
May. 14, 2002 |
| 6357528 |
One-trip casing cutting & removal apparatus |
Mar. 19, 2002 |
| 6330919 |
Method of removing wellhead assemblies and cutting assembly for use therein |
Dec. 18, 2001 |
| 6145594 |
Gate valve for subsea completion system |
Nov. 14, 2000 |
| 6056049 |
Wellhead retrieving tool |
May. 2, 2000 |
| 5979943 |
Shearable completion riser joint |
Nov. 9, 1999 |
| RE35542 |
Pipe bursting and replacement method |
Jun. 24, 1997 |
| 5525010 |
Method and apparatus for severing tubular members |
Jun. 11, 1996 |
| 5318115 |
Casing cutting and retrieving tool |
Jun. 7, 1994 |
| 5303776 |
Device for a down-hole assembly |
Apr. 19, 1994 |
| 5238069 |
System for preventing cutting gas explosion during subterranean pipe cutting operations |
Aug. 24, 1993 |
| 5078546 |
Pipe bursting and replacement method |
Jan. 7, 1992 |
| 4987956 |
Apparatus for use in drilling a well at an offshore location |
Jan. 29, 1991 |
| 4909320 |
Detonation assembly for explosive wellhead severing system |
Mar. 20, 1990 |
| 4789268 |
Device and method for removing irregularities in or enlarging an underground duct |
Dec. 6, 1988 |
| 4703802 |
Cutting and recovery tool |
Nov. 3, 1987 |
| 4528910 |
Apparatus for cutting a submerged tube by means of a pyrotechnic charge |
Jul. 16, 1985 |
| 4323117 |
Method and means for emergency shearing and sealing of well casing |
Apr. 6, 1982 |
| 4215749 |
Gate valve for shearing workover lines to permit shutting in of a well |
Aug. 5, 1980 |
| 4191255 |
Method and apparatus for cutting and pulling tubular and associated well equipment submerged in a water covered area |
Mar. 4, 1980 |
| 4181196 |
Method and apparatus for recovery of subsea well equipment |
Jan. 1, 1980 |
| 3983936 |
Method of and apparatus for cutting and recovering of submarine surface casing |
Oct. 5, 1976 |
|
|
|
