| Patents for E21B 23 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (12,712) |
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| 06/29/2008 | CA2594268A1 Method of using radial thrust elements to re-enter a previously-installed tubular in a lateral |
| 06/26/2008 | WO2008076855A1 Low friction coatings for dynamically engaging load bearing surfaces |
| 06/26/2008 | WO2008076697A2 A radial spring latch apparatus and methods for making and using same |
| 06/26/2008 | WO2008076189A2 Downhole tool with slip releasing mechanism |
| 06/26/2008 | US20080149348 Downhole tools utilizing electroactive polymers for actuating release mechanisms |
| 06/26/2008 | US20080149330 Sonde |
| 06/26/2008 | DE112005000893T5 Werkzeugfangvorrichtung und -verfahren Tool safety gear and procedures |
| 06/26/2008 | CA2672483A1 Low friction coatings for dynamically engaging load bearing surfaces |
| 06/25/2008 | EP1934428A2 Well cement formulations for increased drilling hardness |
| 06/25/2008 | CN201078207Y Positioning device of multilevel tube external packer filling tool |
| 06/25/2008 | CN201078206Y Mechanical and hydraulic pressure double-acting releasing tool |
| 06/25/2008 | CN201078205Y Automatic multifunctional tubing anchor |
| 06/25/2008 | CN101208495A Universal tubing hanger suspension assembly and well completion system and method of using same |
| 06/24/2008 | US7389823 Retrievable bridge plug |
| 06/24/2008 | US7389822 Expander system for incremental expansion of a tubular element |
| 06/24/2008 | US7389821 Downhole trigger device having extrudable time delay material |
| 06/19/2008 | US20080142229 Apparatus for Radially Expanding and Plastically Deforming a Tubular Member |
| 06/18/2008 | CN101203659A Downhole position locating device with fluid regulating feature |
| 06/18/2008 | CN100395474C Sealing method, sealing connection mechanism, sealing mechanism and sealing |
| 06/17/2008 | US7387170 Expandable packer with mounted exterior slips and seal |
| 06/17/2008 | US7387166 Electrically operated actuation tool for subsea completion system components |
| 06/17/2008 | US7387164 Method and apparatus for selective injection or flow control with through-tubing operation capacity |
| 06/17/2008 | CA2572596C Flow control apparatus for use in a wellbore |
| 06/17/2008 | CA2541750C Method of subsurface lubrication to facilitate well completion, re-completion and workover |
| 06/12/2008 | WO2008070051A2 Restriction element trap for use with and actuation element of a downhole apparatus and method of use |
| 06/12/2008 | WO2008068561A1 Methods and apparatus for navigating a tool downhole |
| 06/12/2008 | US20080135293 Methods and apparatus for navigating a tool downhole |
| 06/12/2008 | US20080135262 System for Radially Expanding a Tubular Member |
| 06/12/2008 | US20080135261 Liner hanger |
| 06/12/2008 | US20080135252 Adjustable Expansion Cone Assembly |
| 06/12/2008 | US20080135231 Downhole trigger apparatus |
| 06/12/2008 | CA2671444A1 Restriction element trap for use with and actuation element of a downhole apparatus and method of use |
| 06/12/2008 | CA2671170A1 Methods and apparatus for navigating a tool downhole |
| 06/11/2008 | CN201071693Y Anti-clamping device of casing tool |
| 06/11/2008 | CN201071692Y Down-hole flip-chip releasing operation ground control device |
| 06/11/2008 | CN101196112A Reducing cable belt pressing well lowering conveyer |
| 06/10/2008 | US7385523 Apparatus and method for downhole well equipment and process management, identification, and operation |
| 06/10/2008 | US7383899 Spearhead assembly |
| 06/10/2008 | US7383889 Mono diameter wellbore casing |
| 06/10/2008 | US7383888 Expansion pig |
| 06/10/2008 | US7383881 Stabiliser, jetting and circulating tool |
| 06/10/2008 | CA2494290C Disposable downhole tool with segmented compression element and method |
| 06/10/2008 | CA2445782C Tie back for use with expandable tubulars |
| 06/10/2008 | CA2381360C Downhole bypass valve |
| 06/05/2008 | US20080128140 Methods and apparatus for wellbore construction and completion |
| 06/04/2008 | CN201068750Y Rotating tail tube hanger |
| 06/04/2008 | CN201068749Y Circulative sieve tube hanger |
| 06/03/2008 | US7380604 One trip cemented expandable monobore liner system and method |
| 06/03/2008 | US7380603 Well abandonment apparatus |
| 06/03/2008 | US7380593 Expandable tubes with overlapping end portions |
| 06/03/2008 | CA2517208C Apparatus for radially expanding and plastically deforming a tubular member |
| 05/29/2008 | US20080121399 Method and system for accessing subterranean deposits from the surface |
| 05/29/2008 | US20080121390 Expandable wellbore liner |
| 05/29/2008 | DE112006001359T5 Aufweitbares Einsatzrohrhängevorrichtungssystem und- Verfahren Expandable liner hanger system and- method |
| 05/28/2008 | CN201065744Y Downhole tool for replacing high-pressure hose |
| 05/28/2008 | CN101187300A Rotary hydraulic machinery double function expansion type tail pipe hanger |
| 05/27/2008 | US7377328 Expandable anchor |
| 05/27/2008 | US7377326 Magnetic impulse applied sleeve method of forming a wellbore casing |
| 05/27/2008 | CA2393744C Tools and methods for use with expandable tubulars |
| 05/22/2008 | WO2008061100A1 Variable linkage assisted gripper |
| 05/22/2008 | WO2008061056A1 Downhole trigger device having extrudable time delay material |
| 05/22/2008 | WO2008060893A2 Large bore packer and methods of setting same |
| 05/22/2008 | WO2008059260A2 Improved tree plug |
| 05/22/2008 | US20080115939 Radial Expansion of Tubular Members |
| 05/22/2008 | US20080115929 Spring energized debris barrier for mechanically set retrievable packer |
| 05/22/2008 | CA2669151A1 Variable linkage assisted gripper |
| 05/22/2008 | CA2668063A1 Downhole trigger device having extrudable time delay material |
| 05/22/2008 | CA2667794A1 Improved tree plug |
| 05/22/2008 | CA2611459A1 Well barrier apparatus and associated methods |
| 05/21/2008 | EP1618281B1 Mandrel for a gas lift valve |
| 05/20/2008 | US7373991 Swellable elastomer-based apparatus, oilfield elements comprising same, and methods of using same in oilfield applications |
| 05/20/2008 | US7373988 Liner running system and method |
| 05/20/2008 | US7373984 Lining well bore junctions |
| 05/20/2008 | US7373980 Mono-trip cement thru completion |
| 05/20/2008 | CA2506556C Shear activated inflation fluid system for inflatable packers |
| 05/15/2008 | US20080110677 Conveyor Tube For Use In Installing Or Replacing A Well Tool In A Producing Well And Procedures For Use Of The Same |
| 05/15/2008 | US20080110642 Seal cup for a wellbore tool and method |
| 05/15/2008 | US20080110641 Hanging Apparatus And Method |
| 05/15/2008 | US20080110640 Process for Setting Anchors and Anchor Which Can Be Used in This Process |
| 05/15/2008 | US20080110639 Wellhead isolation mandrel with centralizing device |
| 05/15/2008 | US20080110638 Power and/or Data Connection in a Downhole Component |
| 05/15/2008 | US20080110635 Assembling Functional Modules to Form a Well Tool |
| 05/14/2008 | EP1920133A1 Safety device for an oil well and associated safety installation |
| 05/14/2008 | EP1497526B1 Bi-directional thruster pig apparatus and method of utilizing same |
| 05/14/2008 | CN201059172Y Polymer flooding eccentric test grappling tool |
| 05/14/2008 | CN100387804C Expansion device for expanding a pipe |
| 05/13/2008 | CA2160048C Setting tool for setting a hydraulically actuated downhole tool |
| 05/07/2008 | EP1794408B1 Method for hydrate plug removal |
| 05/07/2008 | CN101173601A Rotatable hydraulic expanding type tail pipe hanger |
| 05/06/2008 | US7367404 Tubing seal |
| 05/06/2008 | US7367402 Blow-out preventor make/break tool |
| 05/06/2008 | US7367393 Pressure monitoring of control lines for tool position feedback |
| 05/06/2008 | US7367390 Slip energized by longitudinal shrinkage |
| 05/06/2008 | US7367389 Tubing expansion |
| 05/06/2008 | CA2475360C Liner top test packer |
| 05/06/2008 | CA2433301C Running tool and wellbore component assembly |
| 05/06/2008 | CA2427453C Hydraulic running tool with torque dampener |
| 04/30/2008 | EP1915508A2 Method and apparatus for coupling expandable tubular members |
| 04/30/2008 | EP1915506A1 Casing bottom hole assembly retrieval process |
| 04/29/2008 | US7363989 Device for a pulling tool for use in pipes and boreholes for the production of oil and gas |