| Patents for E21B 29 - Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground (5,744) |
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| 05/02/2006 | US7036599 Method and apparatus for cutting underwater structures |
| 05/02/2006 | US7036598 Intervention module for a well |
| 05/02/2006 | US7036582 Expansion cone for radially expanding tubular members |
| 04/26/2006 | EP1502001A4 Packer retriever |
| 04/26/2006 | CN1253646C Method for sampling an earth formation through a cased borehole |
| 04/25/2006 | US7032673 Orientation system for a subsea well |
| 04/25/2006 | US7032672 Subsurface safety valve having a communication tool accessible non annular hydraulic chamber |
| 04/25/2006 | US7032658 High power umbilicals for electric flowline immersion heating of produced hydrocarbons |
| 04/19/2006 | EP1549824A4 Mono diameter wellbore casing |
| 04/19/2006 | EP1527254B1 An expandable metal liner for downhole components |
| 04/18/2006 | US7028780 Expandable hanger with compliant slip system |
| 04/18/2006 | US7028778 Fluid system component with sacrificial element |
| 04/18/2006 | US7028777 Open water running tool and lockdown sleeve assembly |
| 04/13/2006 | US20060076146 Generating Downhole Power |
| 04/13/2006 | US20060076136 Fluid Communication Nipple |
| 04/12/2006 | EP1551744A4 Tubular slip device and method |
| 04/11/2006 | US7025156 Rotary drill bit for casting milling and formation drilling |
| 04/11/2006 | US7025145 Tensioning arrangement for a subsea wellhead assembly |
| 04/11/2006 | US7025144 Wellbore liner system |
| 04/11/2006 | US7025135 Thread integrity feature for expandable connections |
| 04/06/2006 | US20060070738 Perforating gun quick connection system |
| 04/06/2006 | US20060070730 Device for cutting of slot-like key seats in wells by a hydroabrasive method |
| 04/05/2006 | EP1570152B1 Method for releasing cables from an attached well tool and apparatus for exercising the method |
| 04/04/2006 | US7021402 Method for using a multipurpose unit with multipurpose tower and a surface blow out preventer |
| 04/04/2006 | US7021390 Tubular liner for wellbore casing |
| 04/04/2006 | US7021381 Method and apparatus for removing casing |
| 04/04/2006 | CA2421712C Methods and apparatus for forming a lateral wellbore |
| 03/30/2006 | WO2006033906A2 A subsea wellhead arrangement for hydraulically pumping a well |
| 03/30/2006 | US20060065406 Interposed joint sealing layer method of forming a wellbore casing |
| 03/30/2006 | CA2576989A1 Method of expansion |
| 03/29/2006 | EP1640560A1 Device for arranging a shut-off valve in a well |
| 03/29/2006 | EP1640559A1 Wireline retrievable safety valve with radial cutting device |
| 03/29/2006 | EP1640558A1 Wireline retrievable safety valve with radial cutting device |
| 03/29/2006 | EP1639229A1 Apparatus and method for sealing a wellbore |
| 03/28/2006 | US7017670 Apparatus and method for expanding and fixing a tubular member within another tubular member, a liner or a borehole |
| 03/28/2006 | CA2426766C Rolling sleeve tubing expander |
| 03/28/2006 | CA2233086C Method for isolating multi-lateral well completions while maintaining selective drainhole re-entry access |
| 03/23/2006 | US20060060357 Subsea wellhead arrangement for hydraulically pumping a well |
| 03/23/2006 | US20060060355 Perforating apparatus, firing assembly, and method |
| 03/22/2006 | CN1749527A Treating method for oil submersible cable fish |
| 03/21/2006 | US7013992 Borehole stabilization while drilling |
| 03/21/2006 | US7013978 System and method for separating fluids |
| 03/21/2006 | US7013970 Central circulation completion system |
| 03/16/2006 | US20060054330 Mono diameter wellbore casing |
| 03/15/2006 | EP1511912A4 Downhole tool deployment safety system and methods |
| 03/14/2006 | US7011161 Structural support |
| 03/14/2006 | US7011160 High torque and high capacity rotatable center core with ram body assemblies |
| 03/09/2006 | US20060048940 Automatic Tool Release |
| 03/07/2006 | US7008340 Ram-type tensioner assembly having integral hydraulic fluid accumulator |
| 03/07/2006 | CA2415488C Apparatus and methods for orientation of a tubular string in a non-vertical wellbore |
| 03/02/2006 | US20060042835 Apparatus and method for drilling a branch borehole from an oil well |
| 03/02/2006 | US20060042793 Apparatus and method for formation evaluation |
| 03/01/2006 | EP1339942B1 Expander |
| 03/01/2006 | CA2517753A1 Apparatus and method for drilling a branch borehole from an oil well |
| 02/28/2006 | US7006920 Activity data capture system for a well service vehicle |
| 02/28/2006 | US7004264 Bore lining and drilling |
| 02/28/2006 | US7004257 Apparatus and methods for separating and joining tubulars in a wellbore |
| 02/28/2006 | CA2307627C Mill for use in a wellbore and method of milling |
| 02/23/2006 | WO2006020206A2 Coiled tubing conveyed milling |
| 02/23/2006 | US20060037750 Exothermic tool and method for heating a low temperature metal alloy for repairing failure spots along a section of a tubular conduit |
| 02/23/2006 | US20060037749 Well tool and method for heating and depositing first and second charges of selective temperature melting metal alloys for repairing failure spots along a section of a tubular conduit in a subterranean well |
| 02/23/2006 | US20060037748 Subterranean well secondary plugging tool for repair of a first plug |
| 02/23/2006 | CA2577043A1 Radial expansion system |
| 02/23/2006 | CA2576985A1 Hydroforming method and apparatus |
| 02/23/2006 | CA2576432A1 Coiled tubing conveyed milling |
| 02/22/2006 | EP1278932B1 Apparatus and methods for forming a lateral wellbore |
| 02/21/2006 | US7000903 Wireline subsea metering head and method of use |
| 02/16/2006 | US20060032628 Well casing straddle assembly |
| 02/15/2006 | EP1626159A2 Apparatus and methods for forming a lateral wellbore |
| 02/15/2006 | EP1626157A1 Deformable seal (div) |
| 02/15/2006 | CN2758456Y Mending device of high pressure casing pipe |
| 02/15/2006 | CN2758455Y Expanding tool of expandable pipe for use in petroleum engineering |
| 02/14/2006 | US6997647 Active hold down system for jack-up drilling unit |
| 02/14/2006 | US6997264 Method of jointing and running expandable tubulars |
| 02/14/2006 | US6997262 Emergency cutting apparatus and method |
| 02/14/2006 | US6997260 Method of repairing tubular members on oil and gas wells |
| 02/14/2006 | CA2414358C Deformable wall of a tubular |
| 02/10/2006 | CA2515619A1 Well casing straddle assembly |
| 02/09/2006 | WO2006014895A2 Shearing sealing ram |
| 02/09/2006 | US20060027376 Expandable tubing and method |
| 02/09/2006 | US20060027374 Electrical transmission system |
| 02/07/2006 | US6994162 Linear displacement measurement method and apparatus |
| 02/02/2006 | WO2005100738A3 Heavy load carry slips and method |
| 02/02/2006 | US20060021756 Dry tree subsea well communications apparatus and method using variable tension large offset risers |
| 02/02/2006 | US20060021749 Shearing sealing ram |
| 02/02/2006 | US20060021748 Sealing plug and method for removing same from a well |
| 02/01/2006 | EP1045958A4 A drill pipe and method of forming and reconditioning a drill pipe |
| 02/01/2006 | CN1239808C Electroreleasing device |
| 01/31/2006 | US6991404 Closed modular ditch liners |
| 01/31/2006 | US6991038 Method for dimensioning a riser element with integrated auxiliary lines |
| 01/26/2006 | US20060016606 Methods and apparatus for in situ generation of power for devices deployed in a tubular |
| 01/26/2006 | US20060016604 Shoulder ring set on casing hanger trip |
| 01/26/2006 | US20060016603 Casing reaming assembly |
| 01/26/2006 | US20060016597 Open hole expandable patch |
| 01/26/2006 | US20060016590 Downhole Component with A Pressure Equalization Passageway |
| 01/25/2006 | EP1618279A1 Method of creating a borehole in an earth formation |
| 01/25/2006 | CN2753868Y Mechanical combined window-opening tool |
| 01/24/2006 | US6988553 Horizontal spool tree wellhead system and method |
| 01/24/2006 | CA2406259C Downhole tool apparatus with non-metallic components and methods of drilling thereof |
| 01/24/2006 | CA2246186C Methods of completing and producing a subterranean well and associated apparatus |