| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 06/12/2013 | CN103146369A Novel chemical foamed cement slurry and construction process thereof |
| 06/12/2013 | CN103146363A Composite salt low-activity anti-sloughing drilling fluid and construction method thereof |
| 06/12/2013 | CN102515343B Expandable air barrier device and method of using same for injection remediation of underground water pollution |
| 06/12/2013 | CN102003157B Subsea wellhead connector |
| 06/12/2013 | CN101967976B Open pit mined-out area through hole plug and through hole plugging method thereof |
| 06/12/2013 | CA2761516A1 Flow control hanger and polished bore receptacle |
| 06/11/2013 | US8459367 Swellable packer having a cable conduit |
| 06/11/2013 | US8459366 Temperature dependent swelling of a swellable material |
| 06/11/2013 | US8459356 Cement composition containing a substituted ethoxylated phenol surfactant for use in an oil-contaminated well |
| 06/11/2013 | US8459355 Radiation-induced triggering for set-on-command compositions and methods of use |
| 06/11/2013 | US8459354 Self-sealing method |
| 06/11/2013 | US8459347 Subterranean well ultra-short slip and packing element system |
| 06/11/2013 | US8459346 Bottom set downhole plug |
| 06/11/2013 | US8459344 Bi-directional internal tubing plug |
| 06/11/2013 | CA2734266C Tubing hanger seal |
| 06/11/2013 | CA2722521C Low profile internal tree cap |
| 06/11/2013 | CA2702652C Apparatus and method for directionally disposing a flexible member in a pressurized conduit |
| 06/07/2013 | CA2797508A1 Selective set module for multi string packers |
| 06/06/2013 | WO2013081808A1 Marine isolation assembly |
| 06/06/2013 | WO2013081782A1 Probe packer and method of using same |
| 06/06/2013 | WO2013081753A1 Selectively disengagable sealing system |
| 06/06/2013 | WO2013079575A1 Annular barrier system with flow lines |
| 06/06/2013 | WO2013079574A1 Pressure integrity testing system |
| 06/06/2013 | WO2013078514A1 Grout delivery |
| 06/06/2013 | WO2013028517A4 Universal pipe thread protector |
| 06/06/2013 | US20130140775 Seal With Bellows Type Nose Ring |
| 06/06/2013 | US20130140043 System and method for containing borehole fluid |
| 06/06/2013 | US20130140042 Seal with bellows style nose ring and radially drivable lock rings |
| 06/06/2013 | US20130140041 Selectively disengagable sealing system |
| 06/06/2013 | US20130140025 Equipment for Remote Launching of Cementing Plugs |
| 06/06/2013 | US20130140024 Method and apparatus for dropping a pump down plug or ball |
| 06/06/2013 | US20130140023 Assemblies and methods for minimizing pressure-wave damage |
| 06/06/2013 | CA2857578A1 Apparatus for use in a fluid conduit |
| 06/06/2013 | CA2857509A1 Selectively disengagable sealing system |
| 06/06/2013 | CA2856578A1 Marine isolation assembly |
| 06/06/2013 | CA2856437A1 Grout delivery |
| 06/06/2013 | CA2856172A1 Pressure integrity testing system |
| 06/06/2013 | CA2856169A1 Annular barrier system with flow lines |
| 06/05/2013 | EP2600040A1 Multi-elastomer seal |
| 06/05/2013 | EP2599956A1 Annular barrier system with flow lines |
| 06/05/2013 | EP2599955A1 Pressure integrity testing system |
| 06/05/2013 | EP2599954A2 Probe packer and method of using same |
| 06/05/2013 | EP2599951A2 Seabed well influx control system |
| 06/05/2013 | EP2598713A1 Sand control well completion method and apparutus |
| 06/05/2013 | EP2598712A2 A system and method for conformance control in a subterranean reservoir |
| 06/05/2013 | EP2598711A1 Expanding elastomer/plug device for sealing bore hole and pipelines |
| 06/05/2013 | CN202970682U Cable passing mechanism for packer |
| 06/05/2013 | CN202970664U Thermal-expansion wellhead compensator of movable elbow |
| 06/05/2013 | CN202970640U Reservoir protection tubular pillar of pressure self-adaptive anchoring packer |
| 06/05/2013 | CN202970615U Construction equipment capable of improving stratum pressure-bearing capacity |
| 06/05/2013 | CN202970614U Water burst drilling and water sealing device |
| 06/05/2013 | CN202970613U Setting packer with locking machine |
| 06/05/2013 | CN202970612U High temperature and high pressure test packer |
| 06/05/2013 | CN202970611U Double pressurizing channel packer suitable for oil pipe sealing detection |
| 06/05/2013 | CN202970610U Oil and gas well underground casing pipe packer rubber sleeve |
| 06/05/2013 | CN202970609U Coal seam water injection hole packer with novel pipe joint |
| 06/05/2013 | CN202970608U 膨胀管 Expansion pipe |
| 06/05/2013 | CN202970607U Casing deformation well high-temperature resistant dual-rubber-sleeve water plugging packer |
| 06/05/2013 | CN202970606U Recoverable hole sealer of gas drainage drill hole |
| 06/05/2013 | CN202970605U Equal drift diameter oil-line plugging system |
| 06/05/2013 | CN202970604U Reverse circulation high pressure fracture acidizing packer |
| 06/05/2013 | CN202970603U Drilling liner hanger sealing box |
| 06/05/2013 | CN202970602U Plugging structure of high-rise building deep foundation pit large water volume tube well |
| 06/05/2013 | CN202970601U Gate plate blowout preventer with novel structure |
| 06/05/2013 | CN202970600U Ram blowout preventer for well drilling |
| 06/05/2013 | CN202970599U Orifice blowout control water stop system |
| 06/05/2013 | CN202970598U High-pressure casing head component |
| 06/05/2013 | CN202970597U Coal bed gas well head device |
| 06/05/2013 | CN202970596U Oil well wellhead double-channel oil return device |
| 06/05/2013 | CN202970595U Manual control gate opening digital display device for oil field well sealing apparatus |
| 06/05/2013 | CN202970594U Wellhead device special for oil field fracturing |
| 06/05/2013 | CN202970593U Multifunctional sealer device |
| 06/05/2013 | CN202970592U Lubricated polish rod sealer |
| 06/05/2013 | CN202970591U Blowout prevention well opening oil extraction device |
| 06/05/2013 | CN202970590U High sectional open drop shaft wellhead plugging device |
| 06/05/2013 | CN202970589U Antitheft oil extraction wellhead device |
| 06/05/2013 | CN202970588U Pumping well polished rod sealing device enabling sealing piece to be conveniently taken out |
| 06/05/2013 | CN202970587U Wellhead sealing device |
| 06/05/2013 | CN202970586U Super-long stroke wellhead sealing device |
| 06/05/2013 | CN202970585U Blowout preventor fixing device |
| 06/05/2013 | CN202970584U RCS (Radar Cross Section) type sealing mechanism |
| 06/05/2013 | CN103140648A Drill pipe |
| 06/05/2013 | CN103140647A Subsea running tool with emergency release |
| 06/05/2013 | CN103132944A Sand-prevention hydraulic small-diameter packer |
| 06/05/2013 | CN103132943A Multiplex tubing hanger |
| 06/05/2013 | CN103132942A Seal with bellows type nose ring |
| 06/05/2013 | CN103132941A Special type multifunctional polish rod sealer |
| 06/05/2013 | CN103132940A Downhole spiral flow shear vibration generator device |
| 06/05/2013 | CN101845944B Method for sealing gas drainage boreholes at specified positions |
| 06/05/2013 | CN101672171B Novel blowout preventer hydraulic locking device |
| 06/05/2013 | CN101375015B Wellbore operation method |
| 06/05/2013 | CN101365862B Hydrocarbon production related system and method |
| 06/04/2013 | US8455402 Wellbore operations using controlled variable density fluid |
| 06/04/2013 | US8453750 Well tools utilizing swellable materials activated on demand |
| 06/04/2013 | US8453735 Method and biodegradable water based thinner composition for drilling subterranean boreholes with aqueous based drilling fluid |
| 06/04/2013 | US8453733 Method to control driving fluid breakthrough during production of hydrocarbons from a subterranean reservoir |
| 06/04/2013 | CA2709074C Telescopic joint mini control panel |
| 06/04/2013 | CA2560553C Methods of making cement compositions using liquid additives containing lightweight beads |
| 06/04/2013 | CA2463413C Testing drill packer |
| 05/30/2013 | WO2013077957A1 Ion exchange method of swellable packer deployment |