| 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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| 07/18/2013 | WO2012040235A3 Remotely operated isolation valve |
| 07/18/2013 | US20130180736 Drill pipe |
| 07/18/2013 | US20130180730 Hydraulic assist deployment system for artificial lift systems and methods for using the same |
| 07/18/2013 | US20130180715 Methods and apparatus for cementing wells |
| 07/17/2013 | EP2614214A2 Electrically driven coiled tubing injector assembly |
| 07/17/2013 | CN203066917U Elastic clamping mechanism applicable to while drilling coring |
| 07/17/2013 | CN203066916U High pressure well liquid balance drive backpressure valve picking up and delivering tool |
| 07/17/2013 | CN203066915U Device enabling geothermal well safety mining-injecting pipe column to be convenient to disassemble and assemble |
| 07/17/2013 | CN103210176A Remotely controlled apparatus for downhole applications, components for such apparatus, remote status indication devices for such apparatus, and related methods |
| 07/17/2013 | CN103210168A Combination whipstock and completion deflector |
| 07/17/2013 | CN103206182A Hydraulic setting tool |
| 07/17/2013 | CN103206181A Top packer recovery tool |
| 07/17/2013 | CN103206177A Method for installing underwater wellhead cap without occupying wellhead and hoisting apparatus for method |
| 07/17/2013 | CN102146778B Through-tubing operation system for wireline pulling electric pump |
| 07/16/2013 | US8485280 Core drilling tools with retractably lockable driven latch mechanisms |
| 07/16/2013 | US8485278 Methods and apparatuses for inhibiting rotational misalignment of assemblies in expandable well tools |
| 07/16/2013 | US8485268 Recovering heated fluid using well equipment |
| 07/16/2013 | US8485266 Contigency release device that uses right-hand torque to allow movement of a collet prop |
| 07/16/2013 | US8485265 Smart actuation materials triggered by degradation in oilfield environments and methods of use |
| 07/16/2013 | US8485262 Modular, stackable wellhead system |
| 07/16/2013 | CA2645948C High velocity string for well pump and method for producing well fluid |
| 07/11/2013 | WO2013103786A2 Gravel pack inner string adjustment device |
| 07/11/2013 | WO2013103766A2 Wireless drill string disconnect |
| 07/11/2013 | WO2013103561A1 Segregating flowable materials in a well |
| 07/11/2013 | WO2013103461A1 Downhole plug drop tool |
| 07/11/2013 | WO2013058982A3 Method and apparatus for removing shifting tools and providing wellbore isolation |
| 07/11/2013 | WO2013025516A3 Debris barrier for hydraulic disconnect tools |
| 07/11/2013 | WO2012092023A3 System and method for positioning a bottom hole assembly in a horizontal well |
| 07/11/2013 | US20130175094 Safety Mechanism For A Well, A Well Comprising The Safety Mechanism, And Related Methods |
| 07/11/2013 | US20130175051 High pressure lock assembly |
| 07/11/2013 | US20130175049 Kickover tool with ratcheting arm and methods of use |
| 07/11/2013 | US20130175027 High pressure lock assembly |
| 07/10/2013 | EP2611988A1 Multi-function isolation tool and method of use |
| 07/10/2013 | CN203050610U Integrated electro-hydraulic bridge plug feeding tool |
| 07/10/2013 | CN203050583U No-releasing valve changing device of casing valve |
| 07/10/2013 | CN203050582U Tubular column rotating-resistant device |
| 07/10/2013 | CN203050581U Non-release gate valve replacing device |
| 07/10/2013 | CN203050580U Operating window for replacing downwell tools at wellhead without well pressing or pressure relief |
| 07/10/2013 | CN203050579U Mechanical release device for coiled tubing fracturing |
| 07/10/2013 | CN203050578U Oil-drainage anchor of oil tube |
| 07/10/2013 | CN103201454A Multi-function isolation tool and method of use |
| 07/10/2013 | CN103201452A Remote pig launcher |
| 07/10/2013 | CN103195384A Method for fixing ground relief pipeline of oil well |
| 07/10/2013 | CN103195383A Underground delivering device for highly-deviated well gas-lift valve |
| 07/09/2013 | US8484004 Systems and methods for improved positioning of pads |
| 07/09/2013 | US8479827 Disconnect devices for downhole strings |
| 07/09/2013 | US8479824 Power slip assembly for wellhead casing and wellbore tubing |
| 07/09/2013 | CA2718793C Wellbore anchor and isolation system |
| 07/09/2013 | CA2589600C Methods and apparatus for drilling with casing |
| 07/04/2013 | WO2013101368A1 Milling tool |
| 07/04/2013 | WO2013100769A1 Device for anchoring in a casing in a borehole in the ground |
| 07/04/2013 | US20130168083 Release Assembly for a Downhole Tool String and Method for Use Thereof |
| 07/04/2013 | CA2854861A1 Connector device for use in wireline intervention operations |
| 07/03/2013 | CN203035138U Anchoring device |
| 07/03/2013 | CN203035137U Pull-out device of circulation sleeve for directional drilling |
| 07/03/2013 | CN103189600A Subsea pig handler |
| 07/03/2013 | CN103184842A Hydraulic suspension packer disconnecting tool and disconnecting method |
| 07/03/2013 | CA2845490A1 Annular barrier with pressure amplification |
| 07/02/2013 | US8474542 Selective and non-selective lock mandrel assembly having upward biased inner sleeve |
| 07/02/2013 | US8474527 Mechanism for providing controllable angular orientation while transmitting torsional load |
| 07/02/2013 | CA2646563C Tubing anchor |
| 07/02/2013 | CA2627279C Improved plug |
| 06/27/2013 | WO2013095886A2 Circumferential cams for mechanical case running tool |
| 06/27/2013 | WO2013093389A1 Unequal load collect and method of use |
| 06/27/2013 | WO2012119837A3 Method and system for well and reservoir management in open hole completions as well as method and system for producing crude oil |
| 06/27/2013 | US20130161965 Circumferential cams for mechanical case running tool |
| 06/27/2013 | US20130161026 Chemical glass transition temperature reducer |
| 06/27/2013 | US20130160995 Reducing axial wave reflections and identifying sticking in wireline cables |
| 06/27/2013 | US20130160992 Dissolvable tool |
| 06/27/2013 | US20130160991 Propulsion Generator and Method |
| 06/27/2013 | CA2856614A1 Unequal load collet and method of use |
| 06/26/2013 | EP2607606A1 Setting tool |
| 06/26/2013 | CN203022716U Logging instrument guide short section applicable to multilateral well |
| 06/26/2013 | CN203022669U Drilling system for taking core while drilling |
| 06/26/2013 | CN203022667U Hydraulic releasing rotary tail pipe hanger |
| 06/26/2013 | CN203022666U Multilevel heavy load rotary tail tube hanger |
| 06/26/2013 | CN203022665U Screw pump anchoring device |
| 06/26/2013 | CN203022664U Well mouth head feed device capable of synchronously completing operation of washing well mouth |
| 06/26/2013 | CN103174392A 3.5-millimeter load-bearing exploration cable logging device |
| 06/26/2013 | CN103174391A Control system of coiled tubing underground tractor driven by electronic control hydraulic pressure |
| 06/26/2013 | CN103174390A Automatically anchoring unfreezing device for flame cutting device of cable transmission |
| 06/25/2013 | US8469088 Drillable bridge plug for high pressure and high temperature environments |
| 06/25/2013 | US8469087 Interface for deploying wireline tools with non-electric string |
| 06/25/2013 | CA2734285C Rotation tool |
| 06/25/2013 | CA2437395C Apparatuses and methods for deploying logging tools and signalling in boreholes |
| 06/20/2013 | WO2013090289A1 Completing a well in a reservoir |
| 06/20/2013 | WO2013089941A1 Controlled electrolytic degradation of downhole tools |
| 06/20/2013 | WO2013086617A1 Flow control hanger and polished bore receptacle |
| 06/20/2013 | WO2012129506A3 Managed pressure drilling withrig heave compensation |
| 06/20/2013 | CA2857123A1 Controlled electrolytic degradation of downhole tools |
| 06/20/2013 | CA2770088A1 Ball drop wellhead control apparatus |
| 06/19/2013 | EP2604785A1 Downhole device actuator and method |
| 06/19/2013 | EP2603662A2 Fill up tool |
| 06/19/2013 | CN203008880U Insertion-tube type release layered water injection tubular column |
| 06/19/2013 | CN203008846U Self-expanding type oil and gas well wall plugging and strengthening pipe nipple and sending and releasing device thereof |
| 06/19/2013 | CN203008838U Dual-tubing and dual-suspension wellhead |
| 06/19/2013 | CN203008833U Expansion type suspension device of screen pipe well completion |
| 06/19/2013 | CN203008832U Novel double-acting dropping-fishing device |
| 06/19/2013 | CN203008831U Floating type well drilling system high-pressure well square-shaped head temporary guide base lowering tool |
| 06/19/2013 | CN103161431A Small hole well completion lifting technology tubular column and use method thereof |