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)
12/2012
12/27/2012CA2839159A1 Fracturing port locator and isolation tool
12/26/2012CN202628063U Automatic multiple ball injector
12/26/2012CN202628005U Composite double-slip hydraulic setting suspension tool for windowing on double-layered casings
12/26/2012CN202628004U Hydraulic dismantling device for under-pressure removing oil pipeline oil-stolen valve
12/26/2012CN202628003U Large-tonnage continuous drawbench
12/26/2012CN202627966U Release device for window of coiled tube
12/26/2012CN102844519A Jacking units and bellows for down hole intervention tools
12/26/2012CN102839920A Multi-segment transforming tubular column for horizontal well and use method for same
12/20/2012WO2012173695A1 Modular anchoring sub for use with a cutting tool
12/20/2012WO2012171792A1 Immersion pump and method for assembling an immersion pump
12/20/2012WO2012024440A3 Retrieving a subsea tree plug
12/20/2012US20120318531 Pressure Pulse Driven Friction Reduction
12/20/2012US20120318516 Subsea connector with a latching assembly
12/20/2012US20120318494 Connecting Head for Connecting A Cable and A Downhole Tool and Associated Intervention Device
12/19/2012EP2534330A2 System and method for determining position within a wellbore
12/19/2012CN202611638U Oil pipe crawler for underground traction cable and collector
12/17/2012CA2780412A1 Valve system for downhole tool string
12/13/2012WO2012170273A1 Optimization of dynamically changing downhole tool settings
12/13/2012US20120312556 Seal
12/13/2012US20120312555 Controllably releasable shifting tool
12/13/2012US20120312554 Insert Gas Lift Injection Assembly for Retrofitting String for Alternative Injection Location
12/13/2012US20120312523 Modular control system for downhole tool
12/13/2012CA2838342A1 Optimization of dynamically changing downhole tool settings
12/12/2012EP2532830A2 Velocity Strings
12/12/2012CN202596627U High-temperature drilling liner hanger bidirectional setting mechanism
12/12/2012CN202596626U High-inclination well eccentric delivery support device
12/12/2012CN202596625U Mechanical downward placing tool of well completion pipe column
12/12/2012CN202596624U Casing suspender with metallic sealing and metallic framework type rubber sealing
12/12/2012CN102817565A Downhole intra-tube support device
12/12/2012CN101550810B Outer suspension positioning mechanism of an underwater cutting tool
12/12/2012CN101493002B Control system communication and lock open tool and method for locking open a safety valve and communicating with surface
12/11/2012US8327945 Remotely operated drill pipe valve
12/11/2012US8327929 Support assembly for downhole tool, downhole tool and method
12/11/2012CA2659692C Dead string completion assembly with injection system and methods
12/11/2012CA2589672C Abrasive jet cutting system and method for cutting wellbore tubulars
12/06/2012WO2012166269A1 Safely deploying powwer
12/06/2012WO2012164236A1 System and method for servicing a wellbore
12/06/2012US20120305270 Down-hole actuation device storage apparatus and method for launching
12/06/2012US20120305269 System and method for casing hanger running
12/06/2012US20120305268 High Pressure Multibore Junction Assembly
12/06/2012US20120305251 Method and device for closing a well in the ground
12/06/2012US20120305241 Atomic battery powered downhole completions assembly
12/06/2012CA2836860A1 System and method for servicing a wellbore
12/05/2012CN202578668U Downhole parameter direct reading and testing integrated machine for vertical well and horizontal well of oil field
12/05/2012CN202578659U Hydraulic control rotation type ball injector
12/05/2012CN202578597U Mobile fixing device for ground relief pipeline of oil-gas well
12/05/2012CN202578596U Break-outing tool of dynamite
12/05/2012CN202578595U Rush installing device for plug valve of oil tube
12/05/2012CN102808589A Motor-driven underground tractor for coiled tubing
12/05/2012CN101929330B Remote control cock type steel ball delivery system
12/04/2012US8322447 Generating power in a well
12/04/2012US8322446 Remote actuation of downhole well tools
12/04/2012US8322441 Open water recoverable drilling protector
12/04/2012US8322432 Subsea internal riser rotating control device system and method
12/04/2012US8322428 Casing hanger nesting indicator
12/04/2012US8322426 Downhole actuator apparatus having a chemically activated trigger
12/04/2012CA2720917C Braking devices and methods for use in drilling operations
11/2012
11/29/2012WO2012162159A1 Borehole seal, backup and method
11/29/2012WO2012160416A1 Inflatable bag assembly
11/29/2012WO2012138556A3 Borehole metal member bonding system and method
11/29/2012US20120298380 Annular isolation with tension-set external mechanical casing (EMC) packer
11/29/2012US20120298379 Method and system for lining a section of a wellbore with an expandable tubular element
11/29/2012US20120298378 Wellbore anchor
11/29/2012US20120298377 Velocity Strings
11/29/2012US20120298376 Tubular coupling device
11/29/2012US20120298355 Logging While Pulling
11/29/2012CA2834795A1 Borehole seal, backup and method
11/28/2012EP2526256A1 Electrically triggered pressure set packer assembly
11/28/2012CN202560146U Lifting fixing clamp of pumping well mouth packing box
11/28/2012CN202560135U Two-way traceless tubing anchor
11/28/2012CN202560134U Special tool for exchanging pumping well head packing
11/27/2012US8316953 Valve
11/27/2012US8316947 System and method for deployment of a subsea well intervention system
11/27/2012CA2565937C Continuous positive flow backflash prevention system
11/22/2012WO2012158575A2 Vortex controlled variable flow resistance device and related tools and methods
11/22/2012WO2012155197A1 Balanced piston setting tool
11/22/2012WO2012129029A3 Multiple liner hanger assembly
11/22/2012WO2012112673A3 Method and apparatus for protecting downhole components with inert atmosphere
11/22/2012US20120292049 Device and a system and a method of moving in a tubular channel
11/22/2012US20120292047 Wellbore filter screen and related methods of use
11/22/2012US20120292045 Downhole pump apparatus having decoupleable isolation plug
11/22/2012US20120292040 Hybrid buoyed and stayed towers and risers for deepwater
11/22/2012US20120292035 Tubing hanger setting confirmation system
11/22/2012US20120292033 Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods
11/22/2012US20120292018 Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods
11/22/2012US20120292016 Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods
11/22/2012US20120292015 Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods
11/22/2012CA2834693A1 Tubular cutting with a sealed annular space and fluid flow for cuttings removal
11/22/2012CA2834059A1 Tubular cutting with debris filtration
11/22/2012CA2833767A1 Vortex controlled variable flow resistance device and related tools and methods
11/21/2012EP2524104A2 Downhole hydraulic coupling assembly
11/21/2012EP2524102A1 Well tools operable via thermal expansion resulting from reactive materials
11/21/2012CN202544836U Logging instrument conveying device
11/21/2012CN202544783U Rupture-disk controlled bridge plug seat sealing tool
11/21/2012CN202544782U Clock-controlled bridge plug setting tool
11/21/2012CN202544781U Electromagnetic valve control type bridge plug seat seal tool
11/21/2012CN202544780U Ball seat type hydraulic delivery device for horizontal well
11/21/2012CN202544779U Dual clamping-release safety hydraulic anchor
11/21/2012CN202544778U Rotatable positioning whipstock anchoring device
11/21/2012CN202544760U Hydraulic separator for coiled tubing
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