| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 02/17/2004 | US6693553 Reservoir management system and method |
| 02/17/2004 | US6691788 Retrievable packer having a positively operated support ring |
| 02/17/2004 | US6691786 Inflatable flow control device and method |
| 02/17/2004 | US6691785 Isolation valve |
| 02/17/2004 | US6691775 System for accessing oil wells with compliant guide and coiled tubing |
| 02/17/2004 | CA2287593C Hydraulic blowout preventer assembly for production wellhead |
| 02/17/2004 | CA2182535C One-trip window-milling system |
| 02/17/2004 | CA2160676C Well plugging apparatus and method |
| 02/12/2004 | WO2004013459A1 Inflation tool with real-time temperature and pressure probes |
| 02/12/2004 | WO2004013458A1 Compact insert for variable bore ram packer |
| 02/12/2004 | WO2004013457A2 Electric power control for sickline operations in wellbores |
| 02/12/2004 | WO2004013447A2 Subsea well production system |
| 02/12/2004 | US20040026866 Seal ring for well completion tools |
| 02/12/2004 | US20040026092 Modular retrievable packer |
| 02/12/2004 | US20040026084 Recovery of production fluids from an oil or gas well |
| 02/11/2004 | EP1021637B1 Slimbore subsea completion system and method |
| 02/10/2004 | US6688400 Downhole sealing |
| 02/10/2004 | US6688394 Drilling methods and apparatus |
| 02/10/2004 | US6688386 Tubing hanger and adapter assembly |
| 02/09/2004 | CA2397360A1 Stuffing box for progressing cavity pump drive |
| 02/05/2004 | WO2004011770A2 Apparatus for releasing a ball into a wellbore |
| 02/05/2004 | WO2004011762A2 Stell tube flying lead jumper connector |
| 02/05/2004 | WO2003070565A9 Subsea intervention system, method and components thereof |
| 02/05/2004 | WO2003004821A3 Soap stick launcher and method for launching soap sticks |
| 02/05/2004 | US20040021269 Compact insert for variable bore ram packer in a ram type blowout preventer |
| 02/05/2004 | US20040021102 Quick release blowout preventer bonnet |
| 02/05/2004 | US20040020709 Slickline power control interface |
| 02/05/2004 | US20040020662 Well packing |
| 02/05/2004 | US20040020654 Subsea well production system |
| 02/05/2004 | US20040020651 Well plug additive, well plug treatment fluid made therefrom, and method of plugging a well |
| 02/05/2004 | US20040020648 Well reference apparatus and method |
| 02/05/2004 | US20040020644 Inflation tool with real-time temperature and pressure probes |
| 02/05/2004 | US20040020641 Apparatus for releasing a ball into a wellbore |
| 02/04/2004 | EP1386055A2 Quick release blowout preventer bonnet |
| 02/04/2004 | EP1169546B1 Multi-stage pressure maintenance device for subterranean well tool |
| 02/04/2004 | CN1472418A High-temperature high-pressure artifical sandproof well wall and construction technology thereof |
| 02/04/2004 | CN1137312C Foundation grouting apparatus and method thereof |
| 02/03/2004 | US6684965 Method and apparatus for operations in underground subsea oil and gas wells |
| 02/03/2004 | US6684947 Apparatus for radially expanding a tubular member |
| 02/03/2004 | CA2254390C Compact retrievable well packer |
| 02/03/2004 | CA2231901C Oil based compositions for sealing subterranean zones and methods |
| 02/03/2004 | CA2068562C Cleaning methods |
| 01/29/2004 | WO2003060279A3 Ported subsea wellhead |
| 01/29/2004 | US20040016550 Retrievable packer having a positively operated support ring |
| 01/29/2004 | US20040016548 Steel tube flying lead jumper connector |
| 01/29/2004 | US20040016546 Method and apparatus for transferring material in a wellbore |
| 01/29/2004 | US20040016545 Hanging liners by pipe expansion |
| 01/29/2004 | US20040016543 Compositions and processes for treating subterranean formations |
| 01/29/2004 | US20040016538 Anti-rotation method and apparatus for limiting rotation of cementing plugs |
| 01/28/2004 | EP1384852A2 Anti-rotation device for cementing plugs |
| 01/28/2004 | EP1384851A2 Method and apparatus for installing casing in a well |
| 01/28/2004 | EP1384850A2 Downhole packer with anti rotating device |
| 01/28/2004 | EP1060325B1 Compositions for use in well construction, repair and/or abandonment |
| 01/28/2004 | CN2601299Y Multifunctional well operation tool |
| 01/27/2004 | US6681861 Power system for a well |
| 01/27/2004 | US6681852 Tubing hanger shuttle valve |
| 01/27/2004 | US6681850 Flow completion system |
| 01/27/2004 | US6681849 Downhole packer system utilizing electroactive polymers |
| 01/24/2004 | CA2435451A1 Method and apparatus for transferring material in a wellbore |
| 01/23/2004 | CA2432846A1 Anti-rotation method and apparatus for limiting rotation of cementing plugs |
| 01/22/2004 | WO2004007910A1 Subsea and landing string distributed temperature sensor system |
| 01/22/2004 | US20040011521 Template and system of templates for drilling and completing offset well bores |
| 01/22/2004 | US20040011519 Well pressure activated pack-off head |
| 01/22/2004 | DE10052168B4 Verschlußvorrichtung für Bohrlöcher Device for closing holes |
| 01/22/2004 | CA2731526A1 Subsea and landing string distributed temperature sensor system |
| 01/21/2004 | EP1381804A1 Threaded coupling with water exclusion seal system |
| 01/21/2004 | EP1381750A1 Drilling system with expandable sleeve |
| 01/21/2004 | CN2600580Y Temp. control flushing packer |
| 01/21/2004 | CN2600579Y Heat flushing unback oil reversoir packer |
| 01/21/2004 | CN2600578Y Hydraulic plug for maintening wellhead valve with pressure |
| 01/20/2004 | US6679472 Pressure balanced choke and kill connector |
| 01/15/2004 | US20040007829 Downhole seal assembly and method for use of same |
| 01/15/2004 | US20040007392 Subsea mud pump and control system |
| 01/15/2004 | US20040007366 Anti-extrusion apparatus and method |
| 01/15/2004 | US20040007354 System for running tubular members |
| 01/15/2004 | US20040007147 Inflatable gas bag for use as a borehole plug |
| 01/15/2004 | DE20213393U1 Verbindungsvorrichtung Connecting device |
| 01/15/2004 | DE20213388U1 Verbindungsvorrichtung Connecting device |
| 01/14/2004 | EP1380721A2 Method of wiping the inner surface of a tubular member, and a plug for use in said method |
| 01/14/2004 | CN2599221Y Telescopic compensator |
| 01/14/2004 | CN2599220Y Eccentric integrated type water distribution packer |
| 01/14/2004 | CN2599219Y Drilling type packer with hydraulic cylinder |
| 01/14/2004 | CN2599218Y Small diameter packer |
| 01/14/2004 | CN2599217Y Oil unloading separator |
| 01/14/2004 | CN2599216Y High sealing well-flushing packer |
| 01/14/2004 | CN2599215Y Double-purpose well-head packer |
| 01/14/2004 | CN2599214Y Oil pumping machine well head wear-resistant sealing device |
| 01/13/2004 | US6676103 Wireline centralization apparatus and method |
| 01/13/2004 | US6675900 Crossover tree system |
| 01/13/2004 | US6675898 Apparatus for preventing critical annular pressure buildup |
| 01/13/2004 | US6675895 Well cementing |
| 01/13/2004 | US6675894 Metal to metal seal for use in well plugging applications, and associated methods |
| 01/13/2004 | US6675893 Single placement well completion system |
| 01/13/2004 | US6675888 Method and system for moving equipment into and through an underground well |
| 01/08/2004 | WO2004003338A1 An assembly and a method for intervention of a subsea well |
| 01/08/2004 | US20040003944 Drilling and cementing casing system |
| 01/08/2004 | US20040003928 Composite bridge plug system |
| 01/08/2004 | US20040003920 High torque and high capacity rotatable center core with ram body assemblies |
| 01/08/2004 | US20040003919 Shear ram assembly |
| 01/08/2004 | US20040003657 Open hole formation testing |