Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 23 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
Patents for E21B 23 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (12,712)
08/2010
08/11/2010CN201546649U Thickened oil impeller automatic-rotating efficient viscosity reducing device
08/11/2010CN101161982B Hydraulic buckling type tail pipe hanger
08/11/2010CN101161981B Hydraulic mechanical double-action buckling type tail pipe hanger
08/10/2010US7770656 System and method for delivering a cable downhole in a well
08/10/2010US7770649 Locking device
08/10/2010CA2536046C Casing attachment method and apparatus
08/10/2010CA2471789C Method and apparatus for backing off a tubular member from a wellbore
08/10/2010CA2413244C Downhole tubular patch, tubular expander and method
08/05/2010WO2006003477A8 Intervention rod
08/05/2010US20100193195 Seal system and method
08/04/2010EP0925475B1 Device for freezing biological samples
08/04/2010CN101793129A Drilling rig endoscope motor cable-fixing device
08/04/2010CN101793128A Blowout preventing tubing anchor
08/03/2010US7769260 Intervention rod
08/03/2010US7766088 System and method for actuating wellbore tools
08/03/2010US7766085 Apparatus, assembly and process for injecting fluid into a subterranean well
08/03/2010US7766084 Downhole tool
07/2010
07/29/2010WO2010084353A2 Apparatus and method
07/29/2010WO2010065405A3 Downhole shape memory alloy actuator and method
07/29/2010WO2009149038A8 Systems and methods for providing wireless power transmissions and tuning a transmission frequency
07/29/2010US20100186970 Support assembly
07/29/2010US20100186969 Downhole Apparatus
07/29/2010US20100186947 Retractable Downhole Backup Assembly for Circumferential Seal Support
07/28/2010CN101787855A Reentry device of later-operation pipe column of multi-branch well
07/27/2010US7762338 Orientation-less ultra-slim well and completion system
07/27/2010CA2522277C Mandrel for a gas lift valve
07/22/2010WO2010083197A1 Downhole disconnect mechanism
07/22/2010WO2009062718A3 Anchoring systems for drilling tools
07/22/2010US20100181077 Weakpoint coupling of selectively adjustable load bearing capacity
07/21/2010EP2208854A2 Well tools incorporating valves operable by low electrical power input
07/21/2010CN201531246U Multi-functional tool in underground oil pipe
07/21/2010CN201531234U Anchor of side-passing cable oil pipe
07/20/2010US7757774 Method of completing a well
07/20/2010US7757773 Latch assembly for wellbore operations
07/20/2010US7757767 Through tubing gun lock
07/20/2010US7757764 Method for drilling and casing a wellbore with a pump down cement float
07/20/2010US7757758 Expandable wellbore liner
07/15/2010US20100175895 Permeability Modification
07/15/2010US20100175894 Single trip well completion system
07/15/2010US20100175893 Manipulatable spider components adapted for cooperation with a vertically reciprocating control line guide
07/15/2010US20100175891 Dart launcher for well cementing operations
07/15/2010US20100175888 Downhole Device Actuator and Method
07/15/2010US20100175871 Multi-Position Hydraulic Actuator
07/15/2010US20100175870 Downhole disconnect mechanism
07/15/2010US20100175868 Modular Electro-Hydraulic Controller for Well Tool
07/15/2010US20100175867 Well Tools Incorporating Valves Operable by Low Electrical Power Input
07/14/2010EP2206878A2 Multi-position hydraulic actuator
07/14/2010EP2205822A2 Object manoeuvring apparatus
07/14/2010EP2205820A2 Inflatable packer with energy and triggering section
07/14/2010EP2205819A1 Low stress traction system
07/14/2010EP2205818A1 Anchoring system for use in a wellbore
07/14/2010CN201526293U Blowout preventing tubing anchor
07/13/2010US7753120 Pore fluid sampling system with diffusion barrier and method of use thereof
07/13/2010CA2504084C Setting tool for hydraulically actuated devices
07/13/2010CA2442233C Downhole axial force generating tool
07/07/2010CN201521272U Branching hanger
07/07/2010CN201521271U Oil drain type oil tube fixer
07/07/2010CN201521270U Rising and adding packing device
07/07/2010CN101772617A Method for altering the stress state of a formation and/or a tubular
07/06/2010US7748476 Variable linkage assisted gripper
07/06/2010US7748465 Production tubing hydraulic release mechanism and method of use
07/01/2010WO2010075062A1 Setting tool for expandable liner hanger and associated methods
07/01/2010WO2010072751A2 Expanding a tubular element in a wellbore
07/01/2010US20100163251 Roller link toggle gripper and downhole tractor
07/01/2010US20100163250 Well equipment for heated fluid recovery
07/01/2010US20100163249 Running-tool for downhole equipment with a hydraulic control system
07/01/2010CA2748162A1 Expanding a tubular element in a wellbore
07/01/2010CA2747436A1 Setting tool for expandable liner hanger and associated methods
06/2010
06/30/2010EP2202383A1 Method of expanding a tubular element in a wellbore
06/30/2010EP2201212A1 Apparatus and method for ratcheting stimulation tool
06/30/2010EP2201211A1 Setting tool for expandable liner hanger and associated methods
06/30/2010CN201517396U Preset downhole choke and delivery tool
06/30/2010CN201517383U Special-purpose nipple for landing throwing-dragging type downhole tool
06/29/2010US7743836 Apparatus for controlling slip deployment in a downhole device and method of use
06/29/2010CA2592949C Gravel pack multi-pathway tube with control line retention and method for retaining control line
06/29/2010CA2377697C Expandable joint connector
06/24/2010WO2009056842A3 Object manoeuvring apparatus
06/24/2010US20100155084 Setting tool for expandable liner hanger and associated methods
06/24/2010US20100155083 Open-hole anchor for whipstock system
06/24/2010US20100155082 Actuator Assembly for Tubular Expansion
06/24/2010US20100155072 Rechargeable Subsea Force Generating Device and Method
06/24/2010US20100155071 Subsea Force Generating Device and Method
06/24/2010US20100155055 Drop balls
06/24/2010US20100155052 Downhole Tool and Running Tool System for Retrievably Setting a Downhole Tool at Locations Within a Well Bore
06/24/2010US20100155050 Down hole tool
06/23/2010CN201513148U Installation device for drilling machine blowout preventer of inclined shaft
06/23/2010CN101748981A Underground fire-extinction preventing drilling device
06/23/2010CA2688731A1 Actuator assembly for tubular expansion
06/23/2010CA2663423A1 Down hole tool
06/22/2010CA2558477C One trip perforating cementing, and sand management apparatus and method
06/22/2010CA2465934C Hydraulic tools for setting liner top packers and for cementing liners
06/22/2010CA2412813C Open hole straddle tool
06/17/2010WO2010068111A1 Method and device for cleaning a cavity in a petroleum well
06/17/2010WO2010066341A2 Apparatus and method for launching plugs in cementing operations
06/17/2010WO2010065993A1 Removal/fitting of subsea sealing plug(s)
06/17/2010US20100147535 Expandable Liner Hanger
06/17/2010US20100147531 Downhole tools
06/16/2010EP2196621A1 A micro-logging system and method
06/16/2010EP2196620A1 A micro-logging system and method
06/16/2010EP2196619A1 Apparatus and method for Launching Plugs in Cementing Operations
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