E21B 33 - Sealing or packing boreholes or wells

Patents for E21B 33 - Sealing or packing boreholes or wells (33,564)
03/2011
03/23/2011	CN201771465U Well head blowout preventing sealer for oil well polish rod
03/23/2011	CN201771464U Slip combined oil pumping rod blowout preventer
03/23/2011	CN201771463U Well mouth bearing protection device
03/23/2011	CN201771462U All-hydraulic blowout preventer mounting and dismounting system with hydraulic braking function
03/23/2011	CN201771461U Pollution prevention device and oil exploitation system for oil exploitation
03/23/2011	CN201771460U Wellhead pressure test blanking plug
03/23/2011	CN201771459U Novel wellhead sealer
03/22/2011	US7909109 Anchoring device for a wellbore tool
03/22/2011	US7909107 High capacity running tool and method of setting a packoff seal
03/22/2011	US7909105 Independent wellhead drilling adapter
03/22/2011	US7909104 Sealing device
03/22/2011	US7909099 Well productivity enhancement methods
03/22/2011	US7909095 Valve device and associated methods of selectively communicating between an interior and an exterior of a tubular string
03/22/2011	CA2703694C Coupling apparatus
03/22/2011	CA2605659C Apparatus and method for improving multilateral well formation and reentry
03/22/2011	CA2597887C System and method for well intervention
03/22/2011	CA2468224C Aqueous storable cement spacer system and method of making and using the same
03/18/2011	CA2698712A1 Geothermal liner system with packer
03/17/2011	WO2011031632A2 Tubular seat and tubular actuating system
03/17/2011	WO2011031541A2 Method and apparatus for dropping a pump down plug or ball
03/17/2011	WO2010144583A3 Contaminant excluding junction and method
03/17/2011	US20110062670 Load delayed seal element, system, and method
03/17/2011	US20110061939 Offshore Casing Drilling Method
03/17/2011	US20110061877 Flow control using a tortuous path
03/17/2011	US20110061876 Method and Apparatus for Cementing a Liner in a Borehole Using a Tubular Member Having an Obstruction
03/17/2011	US20110061857 Packer with Non-Extrusion Ring
03/17/2011	US20110061856 Tubular seat and tubular actuating system
03/17/2011	DE202010012866U1 Notverschluss bei einer neuen Öl-/Gasbohrung ohne Zusatzbohrung Emergency seal with a new oil / gas well without additional bore
03/17/2011	DE202010012864U1 Endgültiger Verschluss einer Öl-/Gasbohrung mit Beibohrung Final closure of an oil / gas well with Beibohrung
03/17/2011	CA2808780A1 Method and apparatus for dropping a pump down plug or ball
03/17/2011	CA2773540A1 Seat having profiled portion to resist plug extrusion
03/16/2011	EP2295714A2 Subterranean well tool including a locking seal healing system
03/16/2011	EP2295713A1 Subterranean well tool including a locking seal healing system
03/16/2011	EP2295712A2 Rotating control device for drilling wells
03/16/2011	EP2294279A1 Downhole sub with hydraulically actuable sleeve valve
03/16/2011	EP2294278A2 Oil well plug and abandonment method
03/16/2011	CN201763294U Inclining type spray preventing device for oil well test
03/16/2011	CN201763293U Integral casing head
03/16/2011	CN201763292U Highly-efficient sealed packing box
03/16/2011	CN201763291U Locking and connecting device of locking piece
03/16/2011	CN201763290U Wellhead polished rod sealer
03/16/2011	CN201763286U Device for changing valve under pressure with no releasing sub
03/16/2011	CN201763276U Clamp for fixing pressure cap of pumping well packing box
03/16/2011	CN201763262U Lower portion structure of casing string in oil and gas well
03/16/2011	CN101985874A Detection recording instrument for flashboard blowout preventer
03/16/2011	CN101451061B Sand consolidation and water plugging profile control agent made by oil sand
03/15/2011	US7906003 Subsea production system
03/15/2011	US7905492 Self-boosting wedge tubing-to-casing seal
03/15/2011	US7905293 Hybrid wellhead system and method of use
03/15/2011	US7905287 Methods of using a polymeric precipitate to reduce the loss of fluid to a subterranean formation
03/15/2011	US7905286 Method and apparatus for sealing a hole made with a cased hole formation tester
03/15/2011	US7905280 Self adjusting debris excluder sub
03/15/2011	CA2639917C Lost circulation compositions and methods of using them
03/15/2011	CA2563091C Zeolite compositions having enhanced compressive strength
03/15/2011	CA2508667C Seal cup for a wellbore tool and method
03/10/2011	WO2011028812A2 Downhole telescoping tool with radially expandable members
03/10/2011	WO2011028560A2 Fracturing and gravel packing tool with multi-position lockable sliding sleeve
03/10/2011	WO2011028559A2 Fracturing and gravel packing tool with upper annulus isolation in a reverse position without closing a wash pipe valve
03/10/2011	WO2011028558A2 Fracturing and gravel packing tool with anti-swabbing feature
03/10/2011	WO2011028404A2 Expandable gage ring
03/10/2011	WO2011028375A2 Fiber optic inner string position sensor system
03/10/2011	WO2011027121A1 Wellbore servicing compositions and methods of making and using same
03/10/2011	WO2011026238A1 Method of drilling and running casing in large diameter wellbore
03/10/2011	WO2010066341A3 Apparatus and method for launching plugs in cementing operations
03/10/2011	US20110057395 Seal element
03/10/2011	US20110056706 Longitudinally split swellable packer and method
03/10/2011	US20110056700 System and method for recompletion of old wells
03/10/2011	US20110056697 Method and system for the extinction of an underwater well for the extraction of hydrocarbons under uncontrolled fluid discharge conditions
03/10/2011	US20110056696 Subsea drilling
03/10/2011	US20110056690 Well Repair Using Swellable Material in a Remedial Matrix
03/10/2011	US20110056676 Removable Hydraulic-Set Packer
03/10/2011	CA2772836A1 Method of drilling and running casing in large diameter wellbore
03/10/2011	CA2769694A1 Sealing apparatus and method
03/09/2011	CN201757177U Sealing ring of oil pipe hanger
03/09/2011	CN201756952U Movable underground throttle of gas well
03/09/2011	CN201756946U Ball-type deep-well tubing bridge plug
03/09/2011	CN201756945U Ball-type expansion sealing tubing bridge plug
03/09/2011	CN201756944U Oil pipe bridge plug
03/09/2011	CN201756943U Oil pipe bridge plug
03/09/2011	CN201756942U Expansion type tubing stopper
03/09/2011	CN201756941U Mechanical releasing shallow-shaft tubing plug
03/09/2011	CN201756940U Expansion self-sealing tubing stopper
03/09/2011	CN201756939U Mechanical releasing tubing plug
03/09/2011	CN201756938U Environment-friendly type multifunctional packer
03/09/2011	CN201756937U Oil well thermal recovery packer
03/09/2011	CN201756936U Multifunctional wax scraper blowout preventer
03/09/2011	CN201756935U Wellhead antitheft box
03/09/2011	CN201756934U Novel plug and special wrench
03/09/2011	CN201756933U Oil water well theft-protection yoke
03/09/2011	CN101984214A Compensating annular blowout preventer
03/09/2011	CN101373024B Manual super control device for sluice valve assembly
03/08/2011	US7900707 Apparatus and method for selectively controlling fluid downhole in conjunction with a progressive cavity pump (PCP)
03/08/2011	US7900697 Fracturing isolation sleeve
03/08/2011	US7900696 Downhole tool with exposable and openable flow-back vents
03/03/2011	WO2011025752A2 Selective placement of conformance treatments in multi-zone well completions
03/03/2011	WO2011023943A2 Methods and apparatus for releasing a chemical into a well bore upon command
03/03/2011	WO2011023942A2 Methods of activating compositions in subterranean zones
03/03/2011	WO2011022814A1 Casing head connector
03/03/2011	WO2010141795A3 Subsea control module with interchangeable segments
03/03/2011	WO2010135644A3 High expansion metal seal system

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