| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 06/22/2011 | CN201874513U Sealing barrel for compression type packers for oil-gas fields |
| 06/22/2011 | CN201874512U High temperature-resistant over pumping and water plugging packer of oil well |
| 06/22/2011 | CN201874511U Tapered releasing type tubing plug |
| 06/22/2011 | CN201874510U High-pressure resistant sucker-rod blowout preventer |
| 06/22/2011 | CN201874509U Novel check-valve type sleeve-pipe well-plugging device |
| 06/22/2011 | CN201874508U Oil pipe rotating device for oil pumping well |
| 06/22/2011 | CN201874507U Anti-theft plug for Christmas trees |
| 06/22/2011 | CN201874506U Lock block type wellhead connecting device |
| 06/22/2011 | CN102105649A Apparatus for improving well safety and recovery and installation process thereof |
| 06/22/2011 | CN102102499A Plugging equipment for ground fracturing plugging water-bearing stratum |
| 06/22/2011 | CN101798658B 24-30% Mn-containing alloy pipe material and manufacture method thereof |
| 06/22/2011 | CN101054892B Inversion-proof packing box for oil extraction well port |
| 06/21/2011 | US7963342 Downhole isolation valve and methods for use |
| 06/21/2011 | US7963333 Controlling the pressure within an annular volume of a wellbore |
| 06/21/2011 | US7963331 Method and apparatus for isolating a jet forming aperture in a well bore servicing tool |
| 06/21/2011 | US7963330 Resin compositions and methods of using resin compositions to control proppant flow-back |
| 06/21/2011 | US7963322 Large bore packer and methods of setting same |
| 06/21/2011 | US7963320 Cover assembly for flanges and other tubular members |
| 06/21/2011 | CA2626755C Diverter plugs for use in well bores and associated methods of use |
| 06/21/2011 | CA2624563C Yield power law packer fluid |
| 06/21/2011 | CA2484714C Tubing anchor |
| 06/16/2011 | WO2011072145A2 Dual path subsea control system |
| 06/16/2011 | WO2011071619A2 Ultra high temperature packer by high-temperature elastomeric polymers |
| 06/16/2011 | WO2011071618A2 Temperature-activated swellable wellbore completion device |
| 06/16/2011 | WO2011071389A1 Injection module, method and use for lateral insertion and bending of a coiled tubing via a side opening in a well |
| 06/16/2011 | WO2011069339A1 Isolating particles for preventing channeling in production section of oil-gas well, completion method and production method using the same |
| 06/16/2011 | WO2011031632A3 Tubular seat and tubular actuating system |
| 06/16/2011 | WO2011028560A3 Fracturing and gravel packing tool with multi-position lockable sliding sleeve |
| 06/16/2011 | WO2011023943A3 Methods and apparatus for releasing a chemical into a well bore upon command |
| 06/16/2011 | WO2011023942A3 Methods of activating compositions in subterranean zones |
| 06/16/2011 | WO2011023938A9 Activating compositions in subterranean zones |
| 06/16/2011 | WO2011018765A3 Fiber reinforced packer |
| 06/16/2011 | US20110140365 Rotary seal with supported inlet |
| 06/16/2011 | US20110140013 Blowout preventer with rope packing seal |
| 06/16/2011 | US20110139466 Ultra high temperature packer by high-temperature elastomeric polymers |
| 06/16/2011 | US20110139465 Packing tube isolation device |
| 06/16/2011 | US20110139461 Assembly for use in a christmas tree |
| 06/16/2011 | US20110139460 Hydrocarbon production system, method for performing clean-up and method for controlling flow |
| 06/16/2011 | US20110139436 Temperature conditioned stuffing box with fluid containment |
| 06/16/2011 | US20110139435 Casing make-up and running tool adapted for fluid and cement control |
| 06/16/2011 | DE102008056261B4 Ventilzentrierung Ventilzentrierung |
| 06/16/2011 | CA2835959A1 Polymer composition, swellable composition comprising the polymer composition, and articles including the swellable composition |
| 06/16/2011 | CA2783389A1 Anti-channeling pack-off particles used in a production section of an oil-gas well, and completion method and production method using such particles |
| 06/16/2011 | CA2782360A1 Injection module, method and use for lateral insertion and bending of a coiled tubing via a side opening in a well |
| 06/15/2011 | EP2333234A2 Metal-to-metal seal with wiper element and wellhead system incorporating same |
| 06/15/2011 | EP2333233A2 Wellhead test tool and method |
| 06/15/2011 | EP2333026A1 Method for producing crude oil |
| 06/15/2011 | CN201866970U Same-floor geothermal energy cyclic utilization system |
| 06/15/2011 | CN201865621U Gas pressure type hole packer |
| 06/15/2011 | CN201865620U Staged fracturing packer for open hole of horizontal well |
| 06/15/2011 | CN201865619U Draggable controller for overflowing of oil tube |
| 06/15/2011 | CN201865618U Anti-splashing collector of oil pipe |
| 06/15/2011 | CN201865617U Chemical feeding type oil well protective cover |
| 06/15/2011 | CN201865616U Anti-theft blowout prevention nipple |
| 06/15/2011 | CN201865615U Quick plug of oil pipe |
| 06/15/2011 | CN201865614U Anti-spraying device used during breaking process of sucker rod |
| 06/15/2011 | CN201865613U Combined oil cylinder for ram preventer with shearing function |
| 06/15/2011 | CN201865612U Multi-component combination balanced stress type ball-shaped rubber core of annular blowout preventer |
| 06/15/2011 | CN201865605U Sleeve hanger cleaning tool for underwater well heads |
| 06/15/2011 | CN201865597U Laminated fracturing protection device for continuous oil pipe |
| 06/15/2011 | CN102099543A Arrangement for directing a fluid flow |
| 06/15/2011 | CN102094593A Sealing device and mechanical sealing packer |
| 06/15/2011 | CN102094592A Open hole well packer |
| 06/15/2011 | CN102094591A Fracturing packer for barefoot well |
| 06/15/2011 | CN102094590A Soft seal isolation technology for protecting oil jackets |
| 06/15/2011 | CN101684733B Grout sealing device of advance strengthening and grout sealing device and advance strengthening and grout sealing device |
| 06/15/2011 | CA2725306A1 Blowout preventer with rope packing seal |
| 06/15/2011 | CA2688704A1 Sealing method and apparatus |
| 06/15/2011 | CA2688635A1 Sealing method and apparatus |
| 06/14/2011 | US7959155 Packer cup |
| 06/14/2011 | CA2539337C Method for pressurized mud cap and reverse circulation drilling from a floating drilling rig using a sealed marine riser |
| 06/14/2011 | CA2510351C Polyether polyesters having anionic functionality |
| 06/14/2011 | CA2459188C Wellhead production blowout preventer |
| 06/10/2011 | CA2688186A1 Mill-through tailpipe liner exit and method of use thereof |
| 06/09/2011 | WO2011068580A1 Shape memory alloy powered hydraulic accumulator |
| 06/09/2011 | WO2011067347A1 An apparatus for sealing off a part of a wall in a section drilled into an earth formation, and a method for applying the apparatus |
| 06/09/2011 | WO2011037995A3 Plug counter and method |
| 06/09/2011 | WO2011031541A3 Method and apparatus for dropping a pump down plug or ball |
| 06/09/2011 | WO2011028812A3 Downhole telescoping tool with radially expandable members |
| 06/09/2011 | US20110133410 Hydrodynamic bore seal |
| 06/09/2011 | US20110132626 Wellsite systems utilizing deployable structure |
| 06/09/2011 | US20110132625 Method and apparatus for dropping a pump down plug or ball |
| 06/09/2011 | US20110132606 Apparatus and Method for Selectively Placing Additives in Wellbore Cement |
| 06/09/2011 | US20110132605 Biodegradable Set Retarder For A Cement Composition |
| 06/09/2011 | US20110132596 Wellbore Method and Apparatus For Completion, Production and Injection |
| 06/09/2011 | CA2724375A1 Subterranean well ultra-short slip and packing element system |
| 06/08/2011 | EP2330273A2 Stabplate connections |
| 06/08/2011 | EP2329109A2 Methods and equipment to improve reliability of pinpoint stimulation operations |
| 06/08/2011 | EP2329105A1 Cementing enhancement device |
| 06/08/2011 | EP2329104A1 Single packer system for fluid management in a wellbore |
| 06/08/2011 | EP2329103A1 Sand control screen assembly and method for use of same |
| 06/08/2011 | EP2329102A1 Combined tree stab and control interface |
| 06/08/2011 | EP2329101A1 Optical sensing system for wellhead equipment |
| 06/08/2011 | EP2145076B1 Methods and devices for treating multiple-interval well bores |
| 06/08/2011 | EP1730383B1 Spear type blow out preventer |
| 06/08/2011 | CN201857942U Integrated tubular column capable of realizing layered sand prevention and layered oil production |
| 06/08/2011 | CN201857941U Anti-leakage and bottom water coning delay integrated string of horizontal well |
| 06/08/2011 | CN201857935U Locked sealing inserting tube |
| 06/08/2011 | CN201857934U Special sealing intubation tube for sealing packer |
| 06/08/2011 | CN201857933U Throwing tubing overflow controller |