| 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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| 11/19/2013 | CA2708007C Tractor communication/control and select fire perforating switch simulations |
| 11/14/2013 | WO2013169790A1 Seat assembly with counter for isolating fracture zones in a well |
| 11/14/2013 | WO2013169649A1 One trip casing or liner directional drilling with expansion and cementing |
| 11/14/2013 | WO2013169418A1 Disintegrable and conformable metallic seal, and method of making the same |
| 11/14/2013 | WO2013169417A1 Disintegrable metal cone, process of making, and use of the same |
| 11/14/2013 | WO2013169416A1 Disintegrable tubular anchoring system and method of using the same |
| 11/14/2013 | WO2013167872A2 Drilling and lining subsea wellbores |
| 11/14/2013 | WO2013131165A8 Magnetic installation and retrieval tool for fluid lift plungers |
| 11/14/2013 | WO2012141881A8 Pressure equalization apparatus and associated systems and methods |
| 11/14/2013 | US20130299197 Adjustable cone expansion systems and methods |
| 11/14/2013 | US20130299196 Extended Reach Placement of Wellbore Completions |
| 11/14/2013 | US20130299194 Shaped charge tubing cutter |
| 11/14/2013 | US20130299193 Positive retention lock ring for tubing hanger |
| 11/14/2013 | US20130299192 Disintegrable tubular anchoring system and method of using the same |
| 11/14/2013 | US20130299187 Lateral Liner Tie Back System and Method |
| 11/13/2013 | EP2662526A2 Methods and apparatus for subsea well intervention and subsea wellhead retrieval |
| 11/13/2013 | EP2661532A1 Well tool with shearable collet |
| 11/13/2013 | CN203285408U High pressure layered water injection tubular column |
| 11/13/2013 | CN203285373U Mine holing device |
| 11/13/2013 | CN203285372U Device for grabbing and putting multiple water nozzles underground |
| 11/12/2013 | US8579037 Method and apparatus for controlled bidirectional movement of an oilfield tool in a wellbore environment |
| 11/12/2013 | US8579024 Non-damaging slips and drillable bridge plug |
| 11/07/2013 | WO2013126044A8 Downhole clamping mechanism |
| 11/07/2013 | WO2012177926A3 Liner top packer for liner drilling |
| 11/07/2013 | WO2012120282A3 Tractor and jar assembly |
| 11/07/2013 | US20130292135 Method and Apparatus for Launching Objects in Dual Gradient Systems |
| 11/06/2013 | EP2660421A2 Actuator switch for a downhole tool, tool and method |
| 11/06/2013 | EP2659087A2 System and method for positioning a bottom hole assembly in a horizontal well |
| 11/06/2013 | CN203271646U Hydraulic setting tool |
| 11/06/2013 | CN203271645U Decompression tool with seal |
| 11/06/2013 | CN103382826A Releasing device |
| 11/06/2013 | CN103382825A Improved flow module placement between a subsea tree and a tubing hanger spool |
| 11/06/2013 | CN101718178B Method for continuously washing coal ash under coal bed methane well in bride type without causing pollution |
| 11/06/2013 | CN101718170B Performing six-grade branch well system tool |
| 11/05/2013 | US8573313 Well servicing methods and systems |
| 11/05/2013 | US8573306 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well |
| 11/05/2013 | US8573296 Limit collar |
| 11/05/2013 | CA2724787C Apparatus and methods for anchoring and orienting equipment in well casing |
| 11/05/2013 | CA2720813C Sonic latch mechanism |
| 11/01/2013 | CA2814376A1 Actuator switch for a downhole tool, tool and method |
| 10/31/2013 | WO2013162380A1 Anchor mechanism for use in a well |
| 10/31/2013 | WO2013159237A1 Methods and electrically-actuated apparatus for wellbore operations |
| 10/31/2013 | WO2012149431A3 Casing relief valve |
| 10/31/2013 | US20130284454 Rubber element removal tool |
| 10/31/2013 | US20130284445 Emergency elastomer injection system for use on e-line and braided cable |
| 10/31/2013 | US20130284432 System and method for triggering a downhole tool |
| 10/31/2013 | US20130284426 Setting Tool |
| 10/30/2013 | EP2655797A2 Sampling assembly for a single packer |
| 10/30/2013 | EP2655788A2 Downhole release joint with radially expandable member |
| 10/30/2013 | EP2655787A1 Tool for extracting an object engaged in a fluid exploitation pipe, extraction device and related method |
| 10/30/2013 | CN203257356U Device for lowering 3.5mm load bearing detection cable into well |
| 10/30/2013 | CN203257355U Hydraulic setting tool |
| 10/30/2013 | CN203257354U Wellhead replacer |
| 10/30/2013 | CN103380262A Methods of maintaining sufficient hydrostatic pressure in multiple intervals of a wellbore in a soft formation |
| 10/30/2013 | CN103380258A System and method for positioning a bottom hole assembly in a horizontal well |
| 10/29/2013 | US8567529 Permanent magnet direct drive top drive |
| 10/29/2013 | US8567515 Tools and methods for hanging and/or expanding liner strings |
| 10/29/2013 | US8567493 Tubing hanger running tool with integrated landing features |
| 10/29/2013 | CA2550883C Anchoring device for casing procedures in wellbores |
| 10/24/2013 | WO2012146707A3 Cycling device |
| 10/24/2013 | US20130277042 Deep Deployment System for Electric Submersible Pumps |
| 10/23/2013 | EP2652257A1 Rock anchor |
| 10/23/2013 | EP2652245A2 "packer assembly with sealing bodies" |
| 10/23/2013 | CN203248108U Deviation hole polish rod sealing piece press-in device |
| 10/23/2013 | CA2805379A1 Swellable packer in hookup nipple |
| 10/22/2013 | US8561708 ID centralizer |
| 10/22/2013 | US8561690 Expansion cone assembly for setting a liner hanger in a wellbore casing |
| 10/22/2013 | US8561687 Pressure containment devices and methods of using same |
| 10/22/2013 | CA2591137C Improved anchor arm for seismic logging tool |
| 10/22/2013 | CA2535940C Packers and methods of use |
| 10/17/2013 | WO2013017859A3 A downhole device for data acquisition during hydraulic fracturing operation and method thereof |
| 10/17/2013 | US20130269952 Robotic Disassembly Method at a Well Site |
| 10/16/2013 | CN203239260U Down-hole remote-control locking device |
| 10/16/2013 | CN102251753B Continuous oil pipe and fracturing pipe column hanging and uncoupling device |
| 10/16/2013 | CN102121358B Multifunctional tail pipe hanger |
| 10/15/2013 | US8555985 Permeability modification |
| 10/15/2013 | US8555976 Emergency disconnect sequence timer display and method |
| 10/15/2013 | US8555963 Gripper assembly for downhole tools |
| 10/15/2013 | US8555962 Downhole tool unit |
| 10/15/2013 | US8555959 Compression assembly and method for actuating downhole packing elements |
| 10/10/2013 | WO2012146892A3 Improved limit collar |
| 10/10/2013 | US20130264123 Methods of manufacturing steel tubes for drilling rods with improved mechanical properties, and rods made by the same |
| 10/10/2013 | US20130264071 Pressure Activated Contingency Release System and Method |
| 10/10/2013 | US20130264049 Plug counter and downhole tool |
| 10/09/2013 | CN203230365U Anchoring device in oil tube |
| 10/09/2013 | CN203230364U Double-action throwing and fishing device |
| 10/09/2013 | CN203230363U Anti-overflow telescopic nipple |
| 10/09/2013 | CN203230362U Disassembling tool for platens of rope hanging devices |
| 10/09/2013 | CN203230361U Auxiliary tool for binding well feeding of test instrument |
| 10/09/2013 | CN103348094A Expandable packer with expansion induced axially movable support feature |
| 10/09/2013 | CN103348091A Annulus mounted potential energy driven setting tool |
| 10/09/2013 | CN103343673A Hydraulic anchor used for oil drilling |
| 10/09/2013 | CN102206992B Crawler and crawling method for continuous oil pipe |
| 10/08/2013 | US8550177 Packer assembly |
| 10/08/2013 | US8550170 Retrievable flow module unit |
| 10/08/2013 | US8550169 Connector |
| 10/08/2013 | CA2758493C Slickline conveyed tubular scraper system |
| 10/08/2013 | CA2491807C Sealed branch wellbore transition joint |
| 10/03/2013 | WO2013148022A1 Retrievable cementing bushing system |
| 10/03/2013 | WO2012160380A3 Support device for use in a wellbore and a method for deploying a barrier in a wellbore |