| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 02/22/2007 | US20070039160 Resin impregnated continuous fiber plug with non-metallic element system |
| 02/22/2007 | CA2618001A1 Device for conducting cementing operations and inflow regulation |
| 02/21/2007 | EP1754856A2 Recovery of production fluids from an oil or gas well |
| 02/21/2007 | EP1753936A1 Sealing system |
| 02/21/2007 | EP0894353B1 Underground well electrical cable transition, seal and method |
| 02/21/2007 | CN2871823Y Fishing connected well fastener without stopper |
| 02/21/2007 | CN2871822Y Automatic offset three-level sealed blowout preventer of optical lever |
| 02/21/2007 | CN2871821Y Blowout preventer on hole top for wireline logging |
| 02/21/2007 | CN2871820Y Packing protector of oil-pumping well |
| 02/21/2007 | CN2871819Y Jump jetter of double pipe head |
| 02/21/2007 | CN2871818Y Pollution preventer of internally-adjusting packing box for pumping well |
| 02/21/2007 | CN2871817Y Sucker rod sealing tool in oil field |
| 02/21/2007 | CN2871812Y Packing loader of sealer at well opening |
| 02/21/2007 | CN1918361A Suppressing fluid communication to or from a wellbore |
| 02/21/2007 | CN1916355A Adjustable valve for controlling magnitude of solid powder flow rate |
| 02/20/2007 | US7178603 Method and apparatus for ECP element inflation utilizing solid laden fluid mixture |
| 02/20/2007 | US7178602 Method and device related to a retrievable well plug |
| 02/20/2007 | US7178600 Apparatus and methods for utilizing a downhole deployment valve |
| 02/20/2007 | US7178597 Cement compositions comprising high aspect ratio materials and methods of use in subterranean formations |
| 02/20/2007 | US7178590 Well fluids and methods of use in subterranean formations |
| 02/20/2007 | US7178588 Flexible cup for downhole devices |
| 02/15/2007 | WO2007018642A2 Undersea well product transport |
| 02/15/2007 | WO2005112574A3 Flying lead connector and method for making subsea connections |
| 02/15/2007 | WO2005042906A3 Subsea completion system, and methods of using same |
| 02/15/2007 | US20070034386 Expandable well barrier |
| 02/15/2007 | US20070034382 Externally activated seal system for wellhead |
| 02/15/2007 | US20070034380 Subsurface Annular Safety Barrier |
| 02/15/2007 | US20070034379 Plug installation system for deep water subsea wells |
| 02/15/2007 | US20070034375 Techniques and Systems Associated With Perforation And The Installation of Downhole Tools |
| 02/15/2007 | US20070034371 Downhole actuation tool |
| 02/14/2007 | EP1752609A1 A plug assembly, a seal locating assembly and associated methods |
| 02/14/2007 | EP1751396A2 Method and apparatus for performing chemical treatments of exposed geological formations |
| 02/14/2007 | EP1751074A2 Subterranean fluids and methods of cementing in subterranean formations |
| 02/14/2007 | EP1497529B1 Method to form a barrier in a reservoir with a magnetorheological fluid |
| 02/14/2007 | CN2869376Y Pneumatic dual-liquid slip casting pump |
| 02/14/2007 | CN2869301Y Compression type low-pressure sealing-test packer |
| 02/14/2007 | CN2869300Y Packer for horizontal well side drilling and horizontal well operation |
| 02/14/2007 | CN2869299Y Multifunctional blow-out preventer |
| 02/14/2007 | CN2869298Y Multifunctional sucker-rod sealing device |
| 02/14/2007 | CN2869297Y Closed anti-theft wellhead combination device |
| 02/14/2007 | CN2869296Y Multifunctional well sealing device |
| 02/14/2007 | CN2869295Y Releaseable counterweight sealing device |
| 02/14/2007 | CN2869294Y Anti-theft well sealing decompression device |
| 02/14/2007 | CN1912334A Preparation method of cementitous material speial for well cementing |
| 02/14/2007 | CN1300442C Rod sealing packer ring assembly |
| 02/13/2007 | US7175748 Subsea production system |
| 02/13/2007 | US7174975 Control systems and methods for active controlled bottomhole pressure systems |
| 02/13/2007 | US7174964 Wellhead with radially expanded tubulars |
| 02/13/2007 | US7174962 water, and microspheres; compressive strengths; use of waste material (cement kiln dust) |
| 02/13/2007 | US7174961 Methods of cementing using cement compositions comprising basalt fibers |
| 02/13/2007 | US7174960 Method to depolymerize as well as derivatize a polysaccharide in a hydrocarbon slurry |
| 02/13/2007 | US7174956 Stripper rubber adapter |
| 02/13/2007 | CA2418817C Method of preventing gas breakthrough in an oil bearing formation |
| 02/13/2007 | CA2359566C Hydraulic distributor |
| 02/13/2007 | CA2320711C Compositions for use in well construction, repair and/or abandonment |
| 02/13/2007 | CA2306736C Downhole packer system |
| 02/08/2007 | WO2007016313A2 Ball dropping tool method and apparatus |
| 02/08/2007 | WO2007015766A1 Reinforced open-hole zonal isolation packer |
| 02/08/2007 | WO2006032842A3 Foamed cement compositions and associated methods of use |
| 02/08/2007 | US20070029092 Mono-trip cement thru completion |
| 02/08/2007 | US20070029089 Methods for cementing using compositions containing salts |
| 02/08/2007 | US20070029088 Hydraulically-active cement and spherical zeolite; the flexural strength to compressive strength ratio of the cured cement is 0.29 to 0 80; for cementing an oil or gas well |
| 02/08/2007 | US20070029086 Methods of forming packs in a plurality of perforations in a casing of a wellbore |
| 02/08/2007 | US20070029084 Retrievable plug system |
| 02/08/2007 | US20070029082 Apparatus and methods for creation of down hole annular barrier |
| 02/08/2007 | US20070029080 Deformable member |
| 02/08/2007 | US20070029079 Subsea tubing hanger assembly for an oil or gas well |
| 02/08/2007 | US20070028811 Fluid loss additives for cement slurries |
| 02/07/2007 | EP1749141A1 Downhole tool |
| 02/07/2007 | CN2866812Y Natural gas well separate fracturing merging-layer extracting integral tubelar column |
| 02/07/2007 | CN2866805Y Drilling well leakage plugging simulating experimental instrument |
| 02/07/2007 | CN2866804Y Cementing tank pressure controller for petroleum field |
| 02/07/2007 | CN2866803Y Mud tank with mixing chamber and equalizing chamber |
| 02/07/2007 | CN2866802Y Apparatus for preventing recycle liquid from falling for grinding and milling well |
| 02/07/2007 | CN2866801Y Servo rotary offset blow-out preventing sealing wellhead apparatus |
| 02/07/2007 | CN2866800Y Wellhead reducing antitheft cross used for oil field horizontal well |
| 02/07/2007 | CN1910336A Device of a test plug |
| 02/07/2007 | CN1908365A Control system of well mouth release valve |
| 02/07/2007 | CN1298961C Method for treating multiple wellbore intervals |
| 02/06/2007 | US7172029 Bi-directionally boosting and internal pressure trapping packing element system |
| 02/06/2007 | US7172028 Reciprocating slickline pump |
| 02/06/2007 | US7172027 Expanding tubing |
| 02/06/2007 | US7172026 Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore |
| 02/06/2007 | US7172022 Cement compositions containing degradable materials and methods of cementing in subterranean formations |
| 02/06/2007 | US7172021 Liner hanger with sliding sleeve valve |
| 02/06/2007 | CA2438654C Composition and method for cementing a well |
| 02/06/2007 | CA2375045C Tubing conveyed fracturing tool and method |
| 02/01/2007 | WO2007014101A2 Downhole actuation tool |
| 02/01/2007 | WO2007012340A1 Sealing material used for building wells and filling underground hollow spaces, especially deep boreholes |
| 02/01/2007 | WO2005079224A3 Hydraulic impulse generator and frequency sweep mechanism for borehole applications |
| 02/01/2007 | US20070023193 Inventory control system |
| 02/01/2007 | US20070023189 Tubing hanger connection |
| 01/31/2007 | EP1747345A2 Hydraulically set concentric packer with multiple umbilical bypass through the piston |
| 01/31/2007 | CN2864087Y Underwell anti-injection oil discharger |
| 01/31/2007 | CN2864085Y Fixing fastener hoop for hydraulic auxiliary pipe of down-hole sleeve tube well plugging device |
| 01/31/2007 | CN2864084Y Mechanical oil extraction used anti-theft safety device for well mouth |
| 01/31/2007 | CN2864078Y Isolating device for location of sub-well oblique machine |
| 01/31/2007 | CN1906379A Measuring device and drilling device for deep drillings |
| 01/31/2007 | CN1906376A Method of creating a zonal isolation in an underground wellbore |
| 01/31/2007 | CN1903973A Fortified collapse proof well drilling liquid |