| 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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| 08/20/2009 | CA2717080A1 One trip liner running, cementing and setting tool using expansion |
| 08/20/2009 | CA2715574A1 Expandable downhole actuator, method of making and method of actuating |
| 08/19/2009 | EP2089607A2 Downhole tool with slip releasing mechanism |
| 08/19/2009 | CN201292792Y Inside tube column positioning tools |
| 08/19/2009 | CN101509359A Unkilling well tubing valve |
| 08/19/2009 | CN101509358A Tube fitting pressing device |
| 08/19/2009 | CN100529326C Mechanism helping to make traction on flat surface and non-flat surface |
| 08/18/2009 | US7575073 Separation of evolved gases from drilling fluids in a drilling operation |
| 08/18/2009 | US7575059 Sonde deployment |
| 08/18/2009 | CA2432030C Mono-diameter wellbore casing |
| 08/14/2009 | CA2653826A1 Methods of retrieving data from a pipe conveyed well logging assembly |
| 08/14/2009 | CA2653814A1 Carrier assembly for a pipe conveyed well logging assembly |
| 08/14/2009 | CA2653583A1 Latchable carrier assembly for pipe conveyed well logging |
| 08/13/2009 | US20090200041 Expansion Cone for Expandable Liner Hanger |
| 08/13/2009 | US20090200040 One Trip Liner Running, Cementing and Setting Tool Using Expansion |
| 08/12/2009 | EP2088280A1 System for positioning a body in a tube |
| 08/12/2009 | EP2088279A2 Downhole completion tool |
| 08/12/2009 | CN201288524Y Push-pull device for well opening valve assembling and disassembling |
| 08/12/2009 | CN101506461A Coupling device |
| 08/12/2009 | CN101503952A Seat seal mechanism used for packing type tail pipe hanger |
| 08/11/2009 | US7571774 Self-lubricating expansion mandrel for expandable tubular |
| 08/11/2009 | US7571765 Hydraulic open hole packer |
| 08/06/2009 | WO2009097341A2 Launching tool for releasing cement plugs downhole |
| 08/06/2009 | US20090194338 Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 08/06/2009 | US20090194286 Multi-step heater deployment in a subsurface formation |
| 08/06/2009 | US20090194277 Single trip tubing punch and setting tool |
| 08/06/2009 | US20090194271 Carrier Assembly for a Pipe Conveyed Well Logging Assembly |
| 08/05/2009 | EP1709289A4 Externally activated seal system for wellhead |
| 08/05/2009 | CN101498213A Downhole wet mixing connection |
| 08/04/2009 | CA2541489C System and method for controlling actuation of tools in a wellbore |
| 07/30/2009 | WO2009093913A1 Device and method for isolating a section of a wellbore |
| 07/30/2009 | WO2009093912A1 A method and an apparatus for controlling a well barrier |
| 07/30/2009 | US20090188677 Small footprint drilling rig |
| 07/30/2009 | US20090188676 Large Inside Diameter Completion with Position Indication |
| 07/30/2009 | US20090188675 Drilling rigs with apparatus identification systems and methods |
| 07/30/2009 | US20090188666 Method And System For Completing A Well |
| 07/30/2009 | US20090188665 Monitoring of Downhole Parameters and Tools Utilizing Fiber Optics |
| 07/30/2009 | US20090188664 Launching Tool for Releasing Cement Plugs Downhole |
| 07/29/2009 | CN201280905Y Positive and negative bidirectional regulating mechanism for adjustment arm |
| 07/29/2009 | CN201280904Y Cam type releasing and withdrawing device of support arm |
| 07/29/2009 | CN201280903Y Oil gas well tail tube suspension controller |
| 07/29/2009 | CN101493002A Control system communication and lock open tool and method for locking open a safety valve and communicating with surface |
| 07/28/2009 | US7565936 Combined telemetry system and method |
| 07/23/2009 | WO2009043901A3 Inflatable packer with energy and triggering section |
| 07/22/2009 | CN201276996Y Hydraulic anchor |
| 07/22/2009 | CN201276995Y Tail pipe hanger with control lock |
| 07/21/2009 | US7562712 Setting tool for hydraulically actuated devices |
| 07/21/2009 | CA2465936C Method and apparatus for anchoring downhole tools in a wellbore |
| 07/16/2009 | WO2009088620A2 Screen coupler for modular screen packs |
| 07/16/2009 | WO2009088502A2 Swellable packer with composite material end rings |
| 07/16/2009 | US20090178809 Methods and Apparatus for Well Construction |
| 07/16/2009 | US20090178808 Convertible seal |
| 07/16/2009 | US20090178800 Multi-Layer Water Swelling Packer |
| 07/16/2009 | CA2711318A1 Downhole tool delivery system |
| 07/15/2009 | EP2078820A2 Coiled tubing wellbore drilling and surveying using a through the drill bit apparatus |
| 07/14/2009 | US7559366 Flex-lock metal seal system for wellhead members |
| 07/14/2009 | US7559365 Collapsible expansion cone |
| 07/14/2009 | US7559364 Bridge plug and setting tool |
| 07/14/2009 | US7559363 Wiper darts for subterranean operations |
| 07/14/2009 | CA2517978C Drilling with casing latch |
| 07/09/2009 | WO2009085813A2 Ball dropping assembly and technique for use in a well |
| 07/09/2009 | WO2009083596A2 Drilling method including a cutting tool disengagement step |
| 07/09/2009 | US20090173499 Methodology for setting of an inflatable packer using solid media |
| 07/09/2009 | US20090173495 Drifting Tubing |
| 07/09/2009 | US20090173489 Bridge plug and setting tool |
| 07/08/2009 | EP2077375A2 Universal tubing hanger suspension assembly and well completion system and method of using same |
| 07/08/2009 | EP2077374A1 Submersible pump assembly |
| 07/08/2009 | CN201269059Y Down-hole clamping apparatus used for plunger gas lift |
| 07/08/2009 | CN201269058Y Special tool for replacing polish rod packing of oil pumping machine |
| 07/07/2009 | US7556100 Apparatus and method for delivering chemicals into an underground well |
| 07/07/2009 | US7556092 Flow control system for an apparatus for radially expanding tubular members |
| 07/07/2009 | CA2602356C Positioning and conveying well apparatus and method |
| 07/07/2009 | CA2450924C Expandable liner hanger with bypass |
| 07/07/2009 | CA2411701C Downhole window finder and method of using the same |
| 07/02/2009 | WO2009079770A1 Dual-stage valve straddle packer for selective stimulation of wells |
| 07/02/2009 | US20090166045 Harvesting vibration for downhole power generation |
| 07/01/2009 | EP2074277A2 Activating device for a downhole tool |
| 07/01/2009 | EP1640560B1 Device for arranging a shut-off valve in a well |
| 07/01/2009 | CN201265381Y Pre-stress well cementing anchor |
| 07/01/2009 | CN100507203C Bi-directional thruster pig apparatus and method of utilizing same |
| 06/30/2009 | US7552778 Seal cup for a wellbore tool and method |
| 06/30/2009 | US7552777 Self-energized downhole tool |
| 06/30/2009 | US7552776 Anchor hangers |
| 06/30/2009 | US7552766 Ribbed sealing element and method of use |
| 06/30/2009 | CA2632812C Apparatus and method for installation of subsea well completion systems |
| 06/30/2009 | CA2563092C Flow switchable check valve |
| 06/25/2009 | WO2009077714A1 Submersible pump assembly |
| 06/25/2009 | WO2009056839A3 Tool storage assembly |
| 06/25/2009 | US20090159297 Ball dropping assembly and technique for use in a well |
| 06/25/2009 | US20090159296 Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore |
| 06/25/2009 | US20090159295 Wellsite Systems Utilizing Deployable Structure |
| 06/25/2009 | US20090159293 Isolating tubing |
| 06/25/2009 | US20090159269 Self-Anchoring Device with Force Amplification |
| 06/25/2009 | US20090159268 Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore |
| 06/25/2009 | US20090159266 Actuating mechanism |
| 06/25/2009 | US20090159265 Packer-anchoring device |
| 06/24/2009 | EP2072750A2 Mechanical expansion system |
| 06/24/2009 | CN201262054Y Balancing type hydraulic tubing anchor |
| 06/24/2009 | CN201262053Y Rotating tail pipe hanger capable of respective well drilling and well completion |
| 06/24/2009 | CN201262052Y Special tool for assembling and disassembling well plugging device bottom flange |