Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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08/01/2013 | US20130192828 Apparatus and method for sealing a portion of a component disposed in a wellbore |
08/01/2013 | US20130192827 Pressure actuation enabling method |
08/01/2013 | DE102010050494B4 Verschluss für ein Bohrloch A closure for a bore hole |
08/01/2013 | CA2861820A1 Tubular anchoring system and a seat for use in the same |
08/01/2013 | CA2861818A1 Tubular anchoring system and method |
07/31/2013 | EP2621113A1 Communicaton in a subsea well control system |
07/31/2013 | EP2620585A1 Communicaton in a subsea well control system |
07/31/2013 | EP2619496A1 Tubular joint |
07/31/2013 | EP2619402A2 Remotely operated isolation valve |
07/31/2013 | CN203097831U Self-carrying type well repairing engineering van device with pressure of environment-friendly blowout preventer |
07/31/2013 | CN203097821U Anti-blocking pressure leveling switch of water injection tubular column |
07/31/2013 | CN203097820U Releasing mechanism and inner blowout preventer including same |
07/31/2013 | CN203097816U Double-sealed plugging bridge plug device |
07/31/2013 | CN203097815U Retrievable setting and squeezing integrated bridge plug |
07/31/2013 | CN203097814U Fixed type air bag hole packer |
07/31/2013 | CN203097813U Flow restricting self-filling float collar for manifold cycles |
07/31/2013 | CN203097812U Underground suspended packer |
07/31/2013 | CN203097811U Water-stop plug capable of rapidly plugging leaking water of underground hydrological boreholes |
07/31/2013 | CN203097810U Bridge-plug-free halfway well cementing device of oil field well drilling |
07/31/2013 | CN203097809U Novel well washing protecting device |
07/31/2013 | CN203097808U Leakage stopping layer structure of oil gas well |
07/31/2013 | CN203097807U Conical rubber core of universal blowout preventer |
07/31/2013 | CN203097806U Spherical rubber core of universal blowout preventer |
07/31/2013 | CN203097805U Variable diameter flashboard rubber core applied to ordinary flashboard steel core |
07/31/2013 | CN203097804U Rubber core of steel-frame-free wear-resistant rotary blowout preventer |
07/31/2013 | CN203097803U High sulfur resistant high pressure metal sealing casing pipe head |
07/31/2013 | CN203097802U Well-mouth easily-circulating protection house used in oil and gas field development |
07/31/2013 | CN203097801U Combined type sealing device for wellhead under pressure |
07/31/2013 | CN203097800U Low-pressure light rotary control head without external cooling lubrication pump station |
07/31/2013 | CN203097799U Inflatable oil-scraping self-sealing preventer |
07/31/2013 | CN203097798U Pumping well polish rod sealer |
07/31/2013 | CN203097797U Oil field down-hole tool test well-head equipment |
07/31/2013 | CN203097796U Plug preventing high temperature caused thread gluing |
07/31/2013 | CN203097795U Three-layer concentric water injection wellhead |
07/31/2013 | CN203097794U Intelligent hydraulic type wellhead sealer |
07/31/2013 | CN203097773U Carbon dioxide flooding sleeve protection tool |
07/31/2013 | CN203097772U Ultra-deep well mandrel type sleeve hanging device |
07/31/2013 | CN103228866A Blowout preventer blade assembly and method of using same |
07/31/2013 | CN103228865A Marine subsea assemblies |
07/31/2013 | CN103225492A Long-distance belt pressure hole sealing method of gas extracting drill hole |
07/31/2013 | CN103225491A Technology for restraining gas cross flow via condensate gas reservoir salt precipitation |
07/31/2013 | CN103225490A Small-diameter dual-seal layered steam injection packer |
07/31/2013 | CN103225489A Self-expansion packer |
07/31/2013 | CN103225488A Blowout-preventing safety wellhead device |
07/31/2013 | CN103225487A Orifice anti-splashing device |
07/31/2013 | CN103225486A Dual metal seal system |
07/31/2013 | CN103224772A Cement slurry and preparation method and application thereof |
07/31/2013 | CN102504779B Paraffin rosin water plugging agent for water plugging of thick oil huff-puff well and water plugging construction method |
07/31/2013 | CN102268971B Cable-through type thermal recovery wellhead device for electric submersible pump |
07/31/2013 | CN102071903B Method for calculating dosage of horizontal well chemical water shutoff agent |
07/31/2013 | CN102041974B Bypass short-circuit structure of abandoned deep water well cutting device and cementing plug method thereof |
07/31/2013 | CN102022092B Open hole packer and tapping tool used together with same |
07/31/2013 | CN101864925B Drilling-free sizing collar and process |
07/31/2013 | CN101845943B Universal packer for through cable |
07/30/2013 | US8496052 Bottom set down hole tool |
07/30/2013 | US8496051 Stage tool apparatus and method |
07/30/2013 | CA2583798C Blowout preventer with seal seat |
07/25/2013 | WO2013109654A1 System, method and apparatus for manufacturing stable cement slurry for downhole injection |
07/25/2013 | WO2013109584A1 Completions fluid loss control system |
07/25/2013 | WO2013109392A1 Packing element with full mechanical circumferential support |
07/25/2013 | WO2013109287A1 Subterranean well interventionless flow restrictor bypass system |
07/25/2013 | WO2013109248A1 Methods of isolating annular areas formed by multiple casing strings in a well |
07/25/2013 | WO2013107789A1 Sealing fluid for setting a packer |
07/25/2013 | WO2012125254A3 Pressure regulator with improved deadband |
07/25/2013 | WO2009070656A3 Provision of viscous compositions below ground |
07/25/2013 | US20130187338 Multifunctional key design for metal seal in subsea application |
07/25/2013 | US20130186650 Treatment plug and method of anchoring and sealing the same to a structure |
07/25/2013 | US20130186646 Treatment plug setting tool, setting system and method of avoiding setting a treatment plug while running |
07/25/2013 | US20130186621 Dirty fluid valve with chevron seal |
07/25/2013 | US20130186618 Method and device for zonal isolation and management of recovery of horizontal well drained reserves |
07/25/2013 | US20130186615 Annular barrier |
07/25/2013 | DE102012000983A1 Vorrichtung für ein Drainage-Bohr-System Device for a drainage drilling system |
07/25/2013 | DE102010025717B4 Verschließen und Abdichten eines Unterwasser-Bohrlochs Closing and sealing of the subsea borehole |
07/25/2013 | CA2861344A1 Completions fluid loss control system |
07/24/2013 | EP2616636A1 Pump down liner expansion method |
07/24/2013 | EP2616634A1 Drill hole plugs |
07/24/2013 | EP2616633A2 Blowout preventer ram assembly and method of using same |
07/24/2013 | EP2616632A2 Casing friendly, shearable hardbands and systems and methods for shearing same |
07/24/2013 | EP2616631A2 Self-releasing plug for use in a subterranean well |
07/24/2013 | EP2616625A2 Downhole tools |
07/24/2013 | CN203081398U Hydraulic setting-seal-type small size oil pipe bridge plug |
07/24/2013 | CN203081397U Grouting bag type hole packer |
07/24/2013 | CN203081396U Portable hole sealing device |
07/24/2013 | CN203081395U Grouting device for pouring fillers into holes |
07/24/2013 | CN203081394U Float collar and float shoe for horizontal well |
07/24/2013 | CN203081393U Telescopic separated mining packer at oil field |
07/24/2013 | CN203081392U Self-sealing packer |
07/24/2013 | CN203081391U Downhole small-diameter hydraulic tubing plug |
07/24/2013 | CN203081390U Horizontal well logging suspension unlocking apparatus |
07/24/2013 | CN203081389U Novel blowout-preventing mud flow guiding device of drilling tool |
07/24/2013 | CN203081364U Continuous circulation short joint suitable for air drilling |
07/24/2013 | CN203081330U High-load expansion hanger back-off connector |
07/24/2013 | CN103221631A Drill hole plug |
07/24/2013 | CN103216211A Method for carrying out profile control on fracture-type oil reservoir |
07/24/2013 | CN103216210A Top packer used for preventing sand |
07/24/2013 | CN103216209A Pipe interior packer for detecting sealing property of oil sleeve |
07/24/2013 | CN103216208A Multifunctional key design for metal seal in subsea applications |
07/24/2013 | CN103216207A Blowout-prevention deviation-adjusting multi-sealing sucker rod sealer |
07/24/2013 | CN103216206A Deviation-prevention biconical sealing rubber block |
07/24/2013 | CN103216205A Adjustable orifice sealing device for geological drilling |