| Patents for E21B 23 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (12,712) |
|---|
| 04/04/2013 | WO2013048666A1 Enhancing swelling rate for subterranean packers and screens |
| 04/04/2013 | WO2013048371A1 Forming inclusions in selected azimuthal orientations from a casing section |
| 04/04/2013 | WO2013044300A1 A method and system of development of a multilateral well |
| 04/04/2013 | US20130081803 Centralizing Mechanism Employable with a Downhole Tool |
| 04/04/2013 | CA2847591A1 Forming inclusions in selected azimuthal orientations from a casing section |
| 04/03/2013 | CN202850909U Tubing anchor special for blowout-prevention oil-drainable mechanical screw pump |
| 04/03/2013 | CN202850908U Screw rod pump anchoring adjustable stretching device |
| 04/03/2013 | CN202850907U Hanger for pipeless dive motor pump |
| 04/03/2013 | CN202850906U Delivering-in guide tool for locking device |
| 04/03/2013 | CN202850905U Flexible connecting pawl spring release device |
| 04/03/2013 | CN103015932A Drilling system with function of coring while drilling |
| 04/03/2013 | CN103015930A Multi-level heavy-load rotating tail pipe suspender |
| 04/03/2013 | CN103015929A Casting-fishing tool with strength-sensing position |
| 04/03/2013 | CN103015928A Method and system for performing an electrically operated function with a running tool in a subsea wellhead |
| 04/02/2013 | US8408319 Control swelling of swellable packer by pre-straining the swellable packer element |
| 04/02/2013 | US8408317 Tubular expansion tool and method |
| 04/02/2013 | US8408310 Method and apparatus of mounting a valve on a flange with flexible bolts to stop oil flow from a ruptured pipe or device |
| 04/02/2013 | US8408307 Wellbore cleaning method and apparatus |
| 04/02/2013 | US8408291 Engaging device |
| 04/02/2013 | US8408290 Interchangeable drillable tool |
| 04/02/2013 | CA2732180C Low profile, high capacity ball injector |
| 04/02/2013 | CA2694851C Methods and apparatus for actuating a downhole tool |
| 04/02/2013 | CA2687548C Composite spoolable tube |
| 03/29/2013 | CA2774698A1 Propulsion generator and method |
| 03/28/2013 | WO2013043539A2 Well tractor with active traction control |
| 03/28/2013 | WO2013043499A2 A bottom hole assembly for deploying an expandable liner in a wellbore |
| 03/28/2013 | WO2013043392A2 Composite limit collar |
| 03/28/2013 | WO2013041494A1 Fiber-optic cable |
| 03/28/2013 | WO2013040709A1 Axially compressed and radially pressed seal |
| 03/28/2013 | CA2848234A1 Fiber-optic cable |
| 03/28/2013 | CA2848224A1 Composite limit collar |
| 03/28/2013 | CA2847704A1 Well tractor with active traction control |
| 03/28/2013 | CA2847699A1 A bottom hole assembly for deploying an expandable liner in a wellbore |
| 03/27/2013 | CN202832463U Step pressure guiding layering fracturing pipe column |
| 03/27/2013 | CN202832433U Slip downhole restriction chock easy to salve |
| 03/27/2013 | CN202832362U Slip-type swab damper |
| 03/27/2013 | CN202832328U Hydraulic anchor capable of being closed mechanically and for fixing tubular columns in oil wells and water wells |
| 03/27/2013 | CN202832327U Oil pumping polish rod buckle hanging device |
| 03/27/2013 | CN202832326U Well drilling wellhead wearing bush taking out device |
| 03/27/2013 | CN202832325U Hydraulic type oil pipe anchor device of oil pumping machine well |
| 03/27/2013 | CN202832324U Electric running and pulling tool |
| 03/27/2013 | CN202832323U Locking type expansion drilling liner hanger |
| 03/27/2013 | CN103003517A Electrical wiring for drill pipe, casing, and tubing |
| 03/27/2013 | CN102996089A Multi-stage hydraulic expansion tail pipe suspension system with reducing expansion cone for horizontal well for thermal recovery of heavy oil |
| 03/26/2013 | US8403065 Fluid connection to drilling riser |
| 03/26/2013 | US8403064 One trip retrieval of a multi-zone fracturing system |
| 03/26/2013 | US8403057 Wellhead connection |
| 03/26/2013 | US8403035 Sealing and anchoring device for use in a well |
| 03/26/2013 | CA2674350C Method and apparatus for retrieving an assembly from a wellbore |
| 03/26/2013 | CA2514534C A downhole tool with an axial drive unit |
| 03/21/2013 | WO2013040177A1 Hydraulically actuated standoff |
| 03/21/2013 | WO2013039774A1 Shaped memory polyphenylene sulfide (pps) for downhole packer applications |
| 03/21/2013 | WO2013039406A1 Collar |
| 03/21/2013 | US20130068483 Composite Limit Collar |
| 03/21/2013 | US20130068482 Drop In Completion Method |
| 03/21/2013 | US20130068481 A Bottom Hole Assembly For Deploying An Expandable Liner In a Wellbore |
| 03/21/2013 | US20130068480 Apparatus and Method for Transitioning a Tool Around the Radius of a Whipstock with Internal Guide Channel |
| 03/21/2013 | US20130068479 Well Tractor With Active Traction Control |
| 03/21/2013 | US20130068466 Latching mechanism with adjustable preload |
| 03/21/2013 | DE102012108830A1 Faseroptisches Kabel An optical fiber cable |
| 03/21/2013 | CA2848296A1 Shaped memory polyphenylene sulfide (pps) for downhole packer applications |
| 03/20/2013 | CN202810816U Hydraulic releasing mechanism, hydraulic releasing packer and pump sealing integrated production string |
| 03/20/2013 | CN202810767U Layering release combination packer device |
| 03/20/2013 | CN202810736U Thermal recovery horizontal well expansion pipe hanger |
| 03/20/2013 | CN202810735U Borehole operation hydraulic anchor of oil field |
| 03/20/2013 | CN202810734U Drilling tool rod pulling device |
| 03/20/2013 | CN202810733U Rod pumped well wellhead packing adding and taking device |
| 03/20/2013 | CN202810732U Tool capable of preventing pressing cap of packing box from slipping off |
| 03/20/2013 | CN202810731U Plucking device for sealer of heat insulation pipe |
| 03/20/2013 | CN202810686U Anchoring type multilateral well window height adjusting pup joint |
| 03/20/2013 | CN102979474A A control system for a subsea well |
| 03/20/2013 | CN102979472A Expansion hanger |
| 03/20/2013 | CN102979471A Anti-fall split slip hydraulic hanging packer |
| 03/20/2013 | CN102979470A Uncemented expansion tail pipe hanger |
| 03/20/2013 | CN102094583B Underground composite cable and mounting device matched therewith |
| 03/20/2013 | CN101208495B Universal tubing hanger suspension assembly and well completion system and method of using same |
| 03/19/2013 | US8397827 Reducing trips in well operations |
| 03/19/2013 | US8397818 Method and device for cleaning a cavity in a petroleum well |
| 03/19/2013 | US8397804 Expandable device for use in a well bore |
| 03/14/2013 | WO2012149224A3 Expandable open-hole anchor |
| 03/14/2013 | WO2012141881A3 Pressure equalization apparatus and associated systems and methods |
| 03/14/2013 | WO2012125936A3 Downhole rebound hardness measurement while drilling or wireline logging |
| 03/14/2013 | US20130062076 Intervention Device for Use in A Fluid Exploitation Well in The Subsoil, and Associated Intervention Assembly |
| 03/14/2013 | US20130062075 Hydraulically Actuated Standoff |
| 03/14/2013 | US20130062073 Packer Assembly with a Standoff |
| 03/14/2013 | US20130062069 Accumulator having operating fluid volume independent of external hydrostatic pressure |
| 03/13/2013 | EP2567060A2 System and method for maintaining position of a wellbore servicing device within a wellbore |
| 03/13/2013 | CN202788704U Electrically-controlled hydraulic-driven coiled tubing downhole tractor |
| 03/13/2013 | CN202788703U Multistage packer casting tool for water injection well |
| 03/13/2013 | CN202788702U Anchor for fixing open hole staged fracturing stringstand pipe |
| 03/13/2013 | CN202788701U Downhole stretching tool |
| 03/13/2013 | CN202788700U Motor-driven coiled tubing downhole tractor |
| 03/13/2013 | CN202788699U Grading well cementing slide sleeve opening tool |
| 03/13/2013 | CN202788698U Wellhead catcher for downhole testers |
| 03/13/2013 | CN202788697U Turnplate device |
| 03/13/2013 | CN202788668U Mounting device for beam hanger of pumping unit |
| 03/13/2013 | CN102971484A Mitigating leaks in production tubulars |
| 03/13/2013 | CN102966328A Novel electro-hydraulic integral bridge plug release tool |
| 03/13/2013 | CN102966322A Method for dropping and fishing tubing plug |
| 03/13/2013 | CN102966321A Hydraulic anchor |