| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
|---|
| 07/13/2010 | CA2504084C Setting tool for hydraulically actuated devices |
| 07/13/2010 | CA2441757C Method for preventing critical annular pressure buildup |
| 07/13/2010 | CA2382980C Cementing compositions comprising particulate material and reinforcing particles |
| 07/13/2010 | CA2299076C Mono-diameter wellbore casing |
| 07/08/2010 | WO2010078447A2 Rigless abandonment system |
| 07/08/2010 | WO2010078388A2 Liner drilling and cementing system utilizing a concentric inner ring |
| 07/08/2010 | WO2010077888A1 Bi-directional wellhead seal |
| 07/08/2010 | WO2010077456A1 System and method for controlling flow in a wellbore |
| 07/08/2010 | WO2010077175A1 Method for forming an isolating plug |
| 07/08/2010 | WO2010076416A1 Method for blocking a storage well |
| 07/08/2010 | WO2009094410A3 Formation tester with low flowline volume |
| 07/08/2010 | US20100170682 Inflatable packer assembly |
| 07/08/2010 | US20100170681 Tree plug |
| 07/08/2010 | US20100170679 System and method for terminating tubing |
| 07/08/2010 | CA2748591A1 Liner drilling and cementing system utilizing a concentric inner string |
| 07/07/2010 | EP2204529A2 Mechanically operated hydraulic valve actuator |
| 07/07/2010 | CN201521292U Self-checking sealing instrument of water injection well |
| 07/07/2010 | CN201521278U Separation type step-by-step unsealing washable well packer |
| 07/07/2010 | CN201521277U 注水井封隔器 Packer injection wells |
| 07/07/2010 | CN201521276U Control device of electric control type ground blowout preventer |
| 07/07/2010 | CN201521275U Drilling top drive blowout prevention switch |
| 07/07/2010 | CN201521274U Wear-resistance packing of pumping unit |
| 07/07/2010 | CN201521270U Rising and adding packing device |
| 07/07/2010 | CN201521259U Blowout preventing interlocking type clamping jaw connecting-tripping device |
| 07/07/2010 | CN101769143A Skid-mounted device for switching and monitoring process flows of water dissolving method mining |
| 07/07/2010 | CN101769139A Compressed self-sealed well-flushing packer |
| 07/07/2010 | CN101769138A Leak-proof method of circulating fluid of oil well |
| 07/07/2010 | CN101769137A Anti-blowout leakage-preventing device of Christmas tree big four joint |
| 07/07/2010 | CN101769129A Integral layering gas recovery technology tubular column and application method thereof |
| 07/06/2010 | US7748468 Sealing devices having a metal foam material and methods of manufacturing and using same |
| 07/06/2010 | US7748467 Downhole seal apparatus and method |
| 07/06/2010 | US7748462 Actuating mechanism |
| 07/06/2010 | US7748460 Method and apparatus for wellbore fluid treatment |
| 07/06/2010 | US7748459 Annular pressure monitoring during hydraulic fracturing |
| 07/06/2010 | US7748456 Dual functional components and associated methods |
| 07/06/2010 | US7748455 Surfaced mixed epoxy method for primary cementing of a well |
| 07/06/2010 | US7748454 placing in the wellbore a material having tricalcium aluminate and tetracalcium aluminoferrite, a gelation inhibiton retarder comprising a alkylbenzene sulfonic acid; a methallyl sulfonic acid monomer; a copolymerizable nonionic monomer; an olefinic unsaturated carboxylic acid; a set modifer; setting |
| 07/06/2010 | US7748453 Servicing a wellbore with wellbore fluids comprising perlite |
| 07/06/2010 | US7748452 Polymeric microspheres as degradable fluid loss additives in oilfield applications |
| 07/06/2010 | US7748448 Wellhead plunger inspection arrangement |
| 07/01/2010 | WO2010073116A1 Wellhead downhole line communication arrangement |
| 07/01/2010 | WO2010072319A1 Apparatus and method for launching plugs in cementing operations |
| 07/01/2010 | WO2010071994A1 Proppant addition system and related methods |
| 07/01/2010 | WO2010039685A3 Method and apparatus for forming and sealing a hole in a sidewall of a borehole |
| 07/01/2010 | US20100163254 Device For Sealing Off A Well And A Pipe And A Fitting Method |
| 07/01/2010 | US20100163253 Dual isolation mechanism of cementation port |
| 07/01/2010 | US20100163252 Method and composition for zonal isolation of a well |
| 07/01/2010 | US20100163250 Well equipment for heated fluid recovery |
| 07/01/2010 | US20100163243 Intervention system dynamic seal and compliant guide |
| 07/01/2010 | US20100163237 Degradable cement compositions containing degrading materials and methods of cementing in wellbores |
| 07/01/2010 | US20100163236 Controlling the Pressure Within an Annular Volume of a Wellbore |
| 07/01/2010 | US20100163222 Device for a test plug |
| 07/01/2010 | CA2748215A1 Wellhead downhole line communication arrangement |
| 07/01/2010 | CA2746721A1 An improved seal |
| 06/30/2010 | EP2201270A1 Multi-elastomer seal |
| 06/30/2010 | EP2201214A1 Activating mechanism |
| 06/30/2010 | EP2201213A1 Oil field system for through tubing rotary drilling |
| 06/30/2010 | CN201517396U Preset downhole choke and delivery tool |
| 06/30/2010 | CN201517391U Steel wire cord expanding packer rubber tube for oil and gas fields |
| 06/30/2010 | CN201517390U Anchor expanding type double rubber barrel packer |
| 06/30/2010 | CN201517389U Anchor expanding type packer |
| 06/30/2010 | CN201517388U Underground warning paraffin prevention and blockage removing choke holder |
| 06/30/2010 | CN201517387U Flexible device for preventing upward movement of sleeve tube |
| 06/30/2010 | CN201517386U Automatic blowout-prevention polished rod sealer |
| 06/30/2010 | CN201517374U Gas production well completion column jacket |
| 06/30/2010 | CN101761332A Up-running-proof pipe string sealing check device |
| 06/30/2010 | CN101761320A Rotary ring-shaped blowout preventer |
| 06/30/2010 | CN101761319A Method for injecting injection fluid by outside-tube chemical packer |
| 06/30/2010 | CA2689480A1 Dual isolation mechanism of cementation port |
| 06/29/2010 | US7743835 Compositions containing shape-conforming materials and nanoparticles that absorb energy to heat the compositions |
| 06/29/2010 | US7743830 Controlling the pressure within an annular volume of a wellbore |
| 06/29/2010 | US7743829 Cement flow control tool |
| 06/29/2010 | US7743828 Methods of cementing in subterranean formations using cement kiln cement kiln dust in compositions having reduced Portland cement content |
| 06/29/2010 | US7743825 Packer sealing element with shape memory material |
| 06/29/2010 | US7743824 Method and apparatus for isolating a wellhead for fracturing |
| 06/29/2010 | US7743823 Force balanced rotating pressure control device |
| 06/29/2010 | CA2620849C Chemical delivery system for plunger lift |
| 06/29/2010 | CA2604698C Control system design for a mixing system with multiple inputs |
| 06/29/2010 | CA2525817C Cement compositions with improved fluid loss characteristics and methods of cementing in subterranean formations |
| 06/29/2010 | CA2406306C Apparatus to provide pressure pulsations to cement slurry in wells |
| 06/29/2010 | CA2377697C Expandable joint connector |
| 06/24/2010 | WO2010070348A2 Subsea system |
| 06/24/2010 | WO2010070284A1 Methods and compositions for stabilizing unconsolidated particulates in a subterranean formation |
| 06/24/2010 | WO2010069478A1 Damper cartridge for launching plugs in cementing operations |
| 06/24/2010 | WO2009056845A3 Connecting assembly |
| 06/24/2010 | WO2009056842A3 Object manoeuvring apparatus |
| 06/24/2010 | US20100155628 Deformation Resistant Opening Chamber Head and Method |
| 06/24/2010 | US20100155086 Method and Device with Biasing Force for Sealing a Well |
| 06/24/2010 | US20100155085 Method and apparatus for sealing wells in co2 sequestration projects |
| 06/24/2010 | US20100155080 Bidirectional ram bop and method |
| 06/24/2010 | US20100155071 Subsea Force Generating Device and Method |
| 06/24/2010 | US20100155069 Cement Compositions Comprising Stevia Retarders |
| 06/24/2010 | US20100155068 Cement retarder systems, and retarded cement compositions |
| 06/24/2010 | US20100155067 Systems and methods for using a passageway through subterranean strata |
| 06/24/2010 | US20100155064 Apparatus and Method for Providing an Alternate Flow Path in Isolation Devices |
| 06/24/2010 | US20100155061 Formation evaluation system and method |
| 06/24/2010 | US20100155056 Eutectic material-based seal element for packers |
| 06/24/2010 | US20100155053 Downhole fluid communication apparatus and method |
| 06/24/2010 | US20100155052 Downhole Tool and Running Tool System for Retrievably Setting a Downhole Tool at Locations Within a Well Bore |
| 06/24/2010 | US20100155050 Down hole tool |