| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 07/27/2010 | US7762341 Flow control device utilizing a reactive media |
| 07/27/2010 | US7762329 introducing into well bore hydrophobic well bore servicing composition comprising liquid hardenable resin, hardening agent, and weighting material selected to impart desired density to well bore servicing composition, allowing liquid hardenable resin to at least partially harden to form well bore plug |
| 07/27/2010 | US7762325 Methods and apparatus to apply axial force to a packer in a downhole tool |
| 07/27/2010 | US7762323 Composite cement retainer |
| 07/27/2010 | US7762322 Swellable packer with variable quantity feed-throughs for lines |
| 07/27/2010 | CA2341996C Wiper for tubing stripper |
| 07/23/2010 | CA2843619A1 Downhole tool assembly with debris relief, and method for using same |
| 07/23/2010 | CA2820652A1 Downhole tool assembly with debris relief, and method for using same |
| 07/23/2010 | CA2749636A1 Downhole tool assembly with debris relief, and method for using same |
| 07/22/2010 | WO2010083132A1 Seal having stress control groove |
| 07/22/2010 | WO2010082831A1 Stuffing box for accommodating geometrical differences between passing, rotating drill pipes and pipe couplings |
| 07/22/2010 | WO2010082186A2 Barrier seal and assembly incorporating same |
| 07/22/2010 | WO2010082025A1 Methods of setting particulate plugs in horizontal well bores using low-rate slurries |
| 07/22/2010 | WO2010081621A2 Connector assembly |
| 07/22/2010 | WO2010062652A3 Subsea completion with a wellhead annulus access adapter |
| 07/22/2010 | WO2010056779A3 Particulate bridging agents used for forming and breaking filtercakes on wellbores |
| 07/22/2010 | WO2010056440A3 Method and system for hydraulically presetting a metal seal |
| 07/22/2010 | WO2009052112A3 Water dissolvable materials for activating in-flow control devices that control flow of subsurface fluids |
| 07/22/2010 | US20100181729 Downhole Seal Element Formed From a Nanocomposite Material |
| 07/22/2010 | US20100181727 Threaded joint with energizable seal |
| 07/22/2010 | US20100181080 Expandable downhole tools and methods of using and manufacturing same |
| 07/22/2010 | US20100181079 Method and apparatus for cementing a liner in a borehole using a tubular member having an obstruction |
| 07/22/2010 | US20100181071 Process and system for creating enhanced cavitation |
| 07/22/2010 | US20100181065 Fluid Loss Additive and Breaking Agent |
| 07/22/2010 | US20100181063 Multi-lock adapters for independent screwed wellheads and methods of using same |
| 07/22/2010 | US20100180538 Cementitious compositions having coarse ground blast furnace slag and methods of making and using the same |
| 07/22/2010 | CA2748930A1 Methods of setting particulate plugs in horizontal well bores using low-rate slurries |
| 07/21/2010 | EP2208855A2 Subsea rotating control device system internal to a riser and method |
| 07/21/2010 | CN201531708U Wellhead casing antitheft sealing plug |
| 07/21/2010 | CN201531254U Second open hole horizontal well sand prevention well cementation tubular column adopting interpolation method |
| 07/21/2010 | CN201531246U Multi-functional tool in underground oil pipe |
| 07/21/2010 | CN201531244U Hydraulic stage-cementing device |
| 07/21/2010 | CN201531243U Foam killer filling device suitable for high energy mixer of cementing truck |
| 07/21/2010 | CN201531242U Oilfield oil testing plugging packer |
| 07/21/2010 | CN201531241U Eccentric withdraw-prevention plugging device of spare mounting hole |
| 07/21/2010 | CN201531240U Combined choke free of disassembly and assembly |
| 07/21/2010 | CN201531239U Polished rod protecting wear-resistant blowout control well mouth sealing device |
| 07/21/2010 | CN201531238U Non-welding universal wellhead flow passage device |
| 07/21/2010 | CN201531237U Steel wire rope well hole seal device |
| 07/21/2010 | CN201531236U High-pressure seal examining device |
| 07/21/2010 | CN1769643B Inflatable packer assembly |
| 07/21/2010 | CN101784749A Method of creating an annular seal around a tubular element |
| 07/21/2010 | CN101781977A Bidirectional high-pressure detachable bridge plug |
| 07/21/2010 | CN101781976A Snubbing oil pipe plugging device for injection well |
| 07/21/2010 | CA2690439A1 Cementitious compositions having coarse ground blast furnace slag and methods of making and using the same |
| 07/20/2010 | US7757771 Wellhead seal unit |
| 07/20/2010 | US7757766 Treating a well bore penetrating a subterranean formation comprising combining components water and a density-matched suspension to prepare a treatment fluid; the density-matched suspension comprises a suspending liquid and a solid particle suspended in the suspending liquid; nonsettling |
| 07/20/2010 | US7757765 Providing a thixotropic cement slurry to a zone of a wellbore in a subterranean formation penetrated by wellbore comprising introducing a thixotropic agent into the well through a tubular member; cleaning out agent residue from interior; adding cement slurry; rapid gelation of downhole cement slurry |
| 07/20/2010 | US7757764 Method for drilling and casing a wellbore with a pump down cement float |
| 07/20/2010 | US7757757 In-well baffle apparatus and method |
| 07/20/2010 | US7757756 Bridge plug and setting tool |
| 07/20/2010 | CA2606139C Annular packer sealingly movable on tubular |
| 07/15/2010 | WO2010080294A2 Single trip positive lock adjustable hanger landing shoulder device |
| 07/15/2010 | WO2010080273A1 Full bore system without stop shoulder |
| 07/15/2010 | WO2010080132A1 Systems and methods for using a passageway through a subterranean strata |
| 07/15/2010 | WO2010079237A1 Annular barrier and annular barrier system |
| 07/15/2010 | WO2010059638A3 Systems and methods for mitigating annular pressure buildup in an oil or gas well |
| 07/15/2010 | WO2010059511A3 Methods for minimizing fluid loss to and determining the locations of lost circulation zones |
| 07/15/2010 | WO2010053812A3 Control package container |
| 07/15/2010 | US20100175891 Dart launcher for well cementing operations |
| 07/15/2010 | US20100175882 Subsea Internal Riser Rotating Control Device System and Method |
| 07/15/2010 | US20100175878 Methods of Setting Particulate Plugs in Horizontal Well Bores Using Low-Rate Slurries |
| 07/15/2010 | US20100175870 Downhole disconnect mechanism |
| 07/15/2010 | US20100175867 Well Tools Incorporating Valves Operable by Low Electrical Power Input |
| 07/15/2010 | CA2853370A1 Annular barrier and annular barrier system |
| 07/15/2010 | CA2752322A1 Systems and methods for using a passageway through a subterranean strata |
| 07/15/2010 | CA2746015A1 Annular barrier and annular barrier system |
| 07/15/2010 | CA2690289A1 Subsea internal riser rotating control device system and method |
| 07/14/2010 | EP2206879A1 Annular barrier and annular barrier system |
| 07/14/2010 | EP2205824A2 Subsea assembly |
| 07/14/2010 | EP2205823A2 Ram bop shear device |
| 07/14/2010 | EP2205822A2 Object manoeuvring apparatus |
| 07/14/2010 | EP2205820A2 Inflatable packer with energy and triggering section |
| 07/14/2010 | EP2205819A1 Low stress traction system |
| 07/14/2010 | EP2205818A1 Anchoring system for use in a wellbore |
| 07/14/2010 | EP2205814A2 Connecting assembly |
| 07/14/2010 | CN201526337U Rapid compressed air hole sealer |
| 07/14/2010 | CN201526310U Well cementation casing-cement sheath indoor analog manufacturer |
| 07/14/2010 | CN201526303U Separate mining process unit by single-pump pressure balancing method |
| 07/14/2010 | CN201526300U Water-plugging packer |
| 07/14/2010 | CN201526299U Shearing fully-closed flashboard preventer |
| 07/14/2010 | CN201526298U Telescopic horn mouth for drilling |
| 07/14/2010 | CN201526297U Burglarproof well plugging device |
| 07/14/2010 | CN201526296U Conveniently-installed well sealing-device |
| 07/14/2010 | CN201526295U Oil water well pressured operation apparatus |
| 07/14/2010 | CN201526293U Blowout preventing tubing anchor |
| 07/14/2010 | CN201526282U Blowout control connecting-tripping device |
| 07/14/2010 | CN201526268U Inner blowout preventer device |
| 07/14/2010 | CN101778994A Method of lining a well or a pipe using an inflatable bladder |
| 07/14/2010 | CN101775980A Quick drainage and hole sealing gas parameter testing system |
| 07/14/2010 | CN101775975A Method for exploiting coal bed gas by hydraulic drilling and pressure relieving |
| 07/14/2010 | CN101775974A Method for exploiting coal bed methane (CBM) by water transportation and pressure relief in butted well |
| 07/13/2010 | US7753131 High temperature packer and method |
| 07/13/2010 | US7753129 Wireline or coiled tubing deployed electric submersible pump |
| 07/13/2010 | US7753115 Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations |
| 07/13/2010 | CA2627027C Erosion resistant frac head |
| 07/13/2010 | CA2602069C An apparatus and a method for deployment of a well intervention tool string into a subsea well |
| 07/13/2010 | CA2597548C One trip cemented expandable monobore liner system and method |
| 07/13/2010 | CA2596282C Wellbore circulation system |
| 07/13/2010 | CA2544494C Plug member |