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Class Information
Number: 166/55.1
Name: Wells > Means for perforating, weakening, bending or separating pipe at an unprepared point > With disparate below ground feature
Description: Devices including a means for performing a function below ground level unlike and other than a function which directly contributes to the use of the device as a perforating, weakening, bending or separating device.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7451819 |
Openhole perforating |
Nov. 18, 2008 |
| 7441601 |
Perforation gun with integral debris trap apparatus and method of use |
Oct. 28, 2008 |
| 7428921 |
Well treatment system and method |
Sep. 30, 2008 |
| 7409993 |
Weight spacer apparatus |
Aug. 12, 2008 |
| 7387156 |
Perforating safety system |
Jun. 17, 2008 |
| 7360587 |
Debris reduction perforating apparatus |
Apr. 22, 2008 |
| 7360599 |
Debris reduction perforating apparatus and method for use of same |
Apr. 22, 2008 |
| 7353871 |
Downhole automatic tool release and method of use |
Apr. 8, 2008 |
| 7303016 |
Casing with isolated annular space |
Dec. 4, 2007 |
| 7296625 |
Methods of forming packs in a plurality of perforations in a casing of a wellbore |
Nov. 20, 2007 |
| 7287589 |
Well treatment system and method |
Oct. 30, 2007 |
| 7278484 |
Techniques and systems associated with perforation and the installation of downhole tools |
Oct. 9, 2007 |
| 7246659 |
Damping fluid pressure waves in a subterranean well |
Jul. 24, 2007 |
| 7243713 |
Shear/seal ram assembly for a ram-type blowout prevention system |
Jul. 17, 2007 |
| 7240733 |
Pressure-actuated perforation with automatic fluid circulation for immediate production and removal of debris |
Jul. 10, 2007 |
| 7228907 |
High energy gas fracturing charge device and method of use |
Jun. 12, 2007 |
| 7217065 |
Modular pipe breaking assembly and method |
May. 15, 2007 |
| 7213648 |
Pressure-actuated perforation with continuous removal of debris |
May. 8, 2007 |
| 7178609 |
Window mill and drill bit |
Feb. 20, 2007 |
| 7152680 |
Slickline power control interface |
Dec. 26, 2006 |
| 7131494 |
Screen and method having a partial screen wrap |
Nov. 7, 2006 |
| 7124823 |
Apparatus for and method of anchoring a first conduit to a second conduit |
Oct. 24, 2006 |
| 7104326 |
Apparatus and method for severing pipe utilizing a multi-point initiation explosive device |
Sep. 12, 2006 |
| 7096955 |
Long duration fuel cell system |
Aug. 29, 2006 |
| 7093656 |
Solid expandable hanger with compliant slip system |
Aug. 22, 2006 |
| 7059411 |
Process of using a propellant treatment and continuous foam removal of well debris and apparatus therefore |
Jun. 13, 2006 |
| 7059407 |
Method and apparatus for stimulation of multiple formation intervals |
Jun. 13, 2006 |
| 7044219 |
Shock absorber |
May. 16, 2006 |
| 7025156 |
Rotary drill bit for casting milling and formation drilling |
Apr. 11, 2006 |
| 7013977 |
Sealed connectors for automatic gun handling |
Mar. 21, 2006 |
| 7000699 |
Method and apparatus for orienting perforating devices and confirming their orientation |
Feb. 21, 2006 |
| 6991044 |
High-energy combined well perforating device |
Jan. 31, 2006 |
| 6976536 |
Tubing expansion |
Dec. 20, 2005 |
| 6966377 |
Providing a low pressure condition in a wellbore region |
Nov. 22, 2005 |
| 6957701 |
Method and apparatus for stimulation of multiple formation intervals |
Oct. 25, 2005 |
| 6955217 |
Method and apparatus for a tubing conveyed perforating guns fire identification system using fiber optics |
Oct. 18, 2005 |
| 6926080 |
Operation method of an oil well pumping unit for well development and device for performing said operation method |
Aug. 9, 2005 |
| 6915853 |
Method and device for perforating a portion of casing in a reservoir |
Jul. 12, 2005 |
| 6896059 |
Components and methods for use with explosives |
May. 24, 2005 |
| 6880637 |
Full bore automatic gun release module |
Apr. 19, 2005 |
| 6880646 |
Laser wellbore completion apparatus and method |
Apr. 19, 2005 |
| 6877562 |
Oil well perforator |
Apr. 12, 2005 |
| 6877559 |
Retrieving a sample of formation fluid in as cased hole |
Apr. 12, 2005 |
| 6874579 |
Creating an underbalance condition in a wellbore |
Apr. 5, 2005 |
| 6860329 |
Apparatus for and method of including a packer to facilitate anchoring a first conduit to a second conduit |
Mar. 1, 2005 |
| 6843318 |
Method and system for determining the position and orientation of a device in a well casing |
Jan. 18, 2005 |
| 6837310 |
Intelligent perforating well system and method |
Jan. 4, 2005 |
| 6820693 |
Electromagnetic telemetry actuated firing system for well perforating gun |
Nov. 23, 2004 |
| 6817598 |
Gun brake device |
Nov. 16, 2004 |
| 6779605 |
Downhole tool deployment safety system and methods |
Aug. 24, 2004 |
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