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)
09/2012
09/05/2012CN202417366U Anchoring and sitting hanging device of expansion restoration pipe embedded with slip sleeves
09/05/2012CN202417365U Tail pipe hanger with expandable horn mouth
09/05/2012CN202417364U Releasing tool for hydraulic suspension packer
09/05/2012CN202417363U Snubbing valve exchanging device
09/05/2012CN202417362U Tool for taking out protective sleeves of casing heads with pressure
09/05/2012CN102654041A Setting tool for well completion pipe string
09/05/2012CN101824981B Test string for stimulating produced liquid section of pumping unit
09/05/2012CN101644147B Feeding and salvaging tool of electronic single/multi-point measurement instrument suitable for gas drilling
09/05/2012CN101509359B Unkilling well tubing valve
09/05/2012CN101506461B Coupling device
09/05/2012CN101403283B Down-hole tool and controllable positioning device for down-hole working barrel positioning
09/05/2012CN101203659B Downhole position locating device with fluid regulating feature
09/04/2012US8256506 Tubing hanger
08/2012
08/30/2012WO2012115889A2 Expandable packer with expansion induced axially movable support feature
08/30/2012US20120217022 Universal rotating flow head having a modular lubricated bearing pack
08/30/2012US20120217019 Shear laser module and method of retrofitting and use
08/30/2012CA2827733A1 Subsea conductor anchor
08/29/2012EP2492437A2 Activation device for use in a downhole well
08/29/2012CN202401997U Expansion pipe suspension type drilling liner hanger
08/29/2012CN202401996U Anchoring tool for window sidetracking of lateral wells
08/28/2012US8251142 Super shoe swell packer
08/28/2012US8251137 Geometrically optimized expansion cone
08/23/2012WO2012112799A2 Conduit assembly and method of making and using same
08/23/2012WO2012112673A2 Method and apparatus for protecting downhole components with inert atmosphere
08/23/2012WO2012112612A2 Tubing hanger and methods for testing and sealing the tubing hanger
08/23/2012WO2012091838A3 Flexible collet anchor assembly with compressive load transfer feature
08/23/2012WO2011079169A8 Hydraulic deployment of a well isolation mechanism
08/23/2012US20120211245 Downhole Clamping Mechanism
08/23/2012US20120211236 System and Method for High-Pressure High-Temperature Tieback
08/23/2012US20120211235 Conduit assembly and method of making and using same
08/23/2012US20120211227 Well Treatment Compositions and Methods Utilizing Nano-Particles
08/23/2012US20120211221 Annulus Mounted Potential Energy Driven Setting Tool
08/23/2012CA2827490A1 Conduit assembly and method of making and using same
08/22/2012EP2097609B1 Coiled tubing tractor assembly
08/22/2012CN202391376U Multi-functional slip blowout preventer
08/22/2012CN202391368U Screen pipe hanger for petroleum drilling
08/22/2012CN202391367U Bidirectional bearing rotary lifting-pressing short circuit
08/22/2012CN202391366U Downhole positioning device with expansion pipe for petroleum drilling production
08/22/2012CN102644455A Hydraulic control rotary ball injector
08/21/2012US8245796 Tractor with improved valve system
08/21/2012US8245776 Wellhead system having wicker sealing surface
08/21/2012CA2720872C Jointed spearhead assembly
08/21/2012CA2540481C Expandable wellbore assembly
08/21/2012CA2524506C Expansion device for expanding a pipe
08/16/2012WO2012107075A1 Method and apparatus for drilling and lining a wellbore
08/16/2012WO2012071208A3 Entry guide formation on a well liner hanger
08/16/2012WO2012004366A3 Closure for a drill hole
08/16/2012US20120205124 System and method to expand tubulars below restrictions
08/16/2012US20120205123 Tubing Hanger and Methods for Testing and Sealing the Tubing Hanger
08/16/2012CA2825997A1 Method and apparatus for drilling and lining a wellbore
08/15/2012CN202381074U Tool special for disassembling well logging equipment
08/15/2012CN202381064U Dedicated tool integrated with laminating and fracturing
08/15/2012CN202381005U Positioning hanger
08/15/2012CN202381004U Soft anchoring tubing anchor
08/15/2012CN202381003U Suspension device of downhole tool
08/15/2012CN202381002U Tool for taking out and placing in wearing bush while drilling
08/15/2012CN102639810A Systems and methods for initiating annular obstruction in a subsurface well
08/15/2012CN102639809A Systems and methods for initiating annular obstruction in a subsurface well
08/15/2012CN102635352A Perforation pressure meter as well as dispenser and fisher thereof
08/15/2012CN102635340A Novel high-efficient testing and regulating process utilizing optical fiber cable
08/15/2012CN102635337A Rapid gas production method implemented after coiled tubing is put in gas well
08/15/2012CN101509369B Horizontal well thruster raising tractor for measuring under well gravity force
08/14/2012US8240390 Method and apparatus for releasing a packer
08/14/2012CA2720489C Hydraulically set liner hanger
08/14/2012CA2697395C Method and apparatus for a packer assembly
08/14/2012CA2521763C Pump plug
08/09/2012WO2012106039A2 Disconnect devices for downhole strings
08/09/2012WO2012106012A1 Methods of maintaining sufficient hydrostatic pressure in multiple intervals of a wellbore in a soft formation
08/09/2012WO2012105850A1 Method and device for deploying a cable and an apparatus in the ground
08/09/2012WO2012061465A3 Combination whipstock and completion deflector
08/09/2012WO2012010897A3 A safety mechanism for a well, a well comprising the safety mechanism, and related methods
08/09/2012US20120199396 Drill rig and associated drill rig traverse system
08/09/2012CA2825797A1 Methods of maintaining sufficient hydrostatic pressure in multiple intervals of a wellbore in a soft formation
08/08/2012EP2483518A1 Compression assembly and method for actuating downhole packing elements
08/08/2012EP2483517A1 Anchor assembly and method for anchoring a downhole tool
08/08/2012EP2483516A1 Actuation assembly and method for actuating a downhole tool
08/08/2012EP2122117B1 Pressure activated locking slot assembly
08/08/2012CN202370466U Expansion type suspension pack off nipple
08/08/2012CN202370465U Tieback self-locking mechanism for suspended packer
08/08/2012CN202370464U Fixture block type releasing connector
08/08/2012CN102628342A Tail tube cementing drill pipe rubber plug placing device
08/07/2012US8235123 Separating device
08/07/2012US8235122 Combination well pipe centralizer and overpull indicator
08/07/2012US8235108 Swell packer and method of manufacturing
08/07/2012US8235105 Mouse hole support unit with rotatable or stationary operation
08/07/2012CA2668533C Downhole anchoring tools conveyed by non-rigid carriers
08/07/2012CA2666240C Hydraulic well packer
08/07/2012CA2552722C Expandable connection
08/07/2012CA2499007C Bottom plug for forming a mono diameter wellbore casing
08/07/2012CA2482362C Service tool with flow diverter and associated method
08/04/2012CA2731039A1 Method of deploying and powering an electrically driven device in a well
08/02/2012WO2012103243A2 Setting tool
08/02/2012WO2012103136A2 Lock mandrel load distribution apparatus
08/02/2012WO2012065123A3 Remote operation of cementing head
08/02/2012WO2012061202A3 Method and apparatus for creating an annular barrier in a subterranean wellbore
08/02/2012US20120193106 Recovering heated fluid using well equipment
08/02/2012US20120193105 Disconnect devices for downhole strings
08/02/2012US20120193102 Remote subsea connection equipment
08/02/2012US20120193088 Expandable Compliant Anchor/Seal
08/02/2012CA2825773A1 Setting tool
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