Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 33 - Sealing or packing boreholes or wells
Patents for E21B 33 - Sealing or packing boreholes or wells (33,564)
04/2010
04/28/2010EP2180136A2 System, method and apparatus for a modular production tree assembly to reduce weight during transfer of tree to rig
04/28/2010EP2180135A2 Mounting a module on an underwater structure
04/28/2010EP2179129A2 Methods and compositions for preventing high density well completion fluid loss
04/28/2010EP2179127A1 Sealing arrangement, and corresponding method
04/28/2010EP2179126A2 Annular seal between wellhead and hanger
04/28/2010CN201443355U Automatic-control mine ground grout injection system
04/28/2010CN201443354U Easy-to-drill core breaker of float collar float shoes
04/28/2010CN201443353U Expansion anchoring packer
04/28/2010CN201443352U Anchoring expansion packer
04/28/2010CN201443351U Novel packer
04/28/2010CN201443350U Anti-dropping centering steam injection packer for thick oil well
04/28/2010CN201443349U Anti-spray machine below screw pump
04/28/2010CN201443348U Cold-hot double-acting multifunction packer
04/28/2010CN201443347U Positioning plugging continuous impinger for eccentric water distributor
04/28/2010CN201443346U Double-channel packer for separated injection washing of water injection well
04/28/2010CN201443345U Spraying and lifting device for oil pipe
04/28/2010CN201443344U Quick-replacing ram blowout preventer for well servicing operation
04/28/2010CN201443343U Setting device for geothermal well casings
04/28/2010CN201443342U High-pressure compound sealer
04/28/2010CN201443341U Passive type multifunctional wellhead backflow dredging and compensating device
04/28/2010CN201443340U Rapid rush-spraying device
04/28/2010CN201443339U Well repair device with pressure in oil field
04/28/2010CN201443338U Swabbing and blowout-prevention device for oil field
04/28/2010CN201443337U Environment-friendly crude oil collector
04/28/2010CN201443336U Polished rod stuffing box
04/28/2010CN201443335U Wellhead deep stopper
04/28/2010CN201443334U Non-concentric packing box for alignment of pumping rod
04/28/2010CN201443333U Rodless oil extraction well head device
04/28/2010CN201443332U Uniform steam injection and wellhead test device of horizontal well
04/28/2010CN201443331U Multi-functional well head and christmas tree
04/28/2010CN201443330U Novel wellhead and oil-producing tree
04/28/2010CN201443329U Hydraulic power assisted test device
04/28/2010CN201443328U Fishing tandem device for well cementation
04/28/2010CN201443323U Anti-spray anchoring machine of screw pump
04/28/2010CN201443321U Oil-water well sand wash reversing packer
04/28/2010CN201443300U Overflowing and anti-falling integrated screwdrill
04/28/2010CN1860282B Method of suspending, completing and working over a well
04/28/2010CN101699029A High-pressure clamped sealing gas injection tool being used for leak detection of tube column and having function of trip prevention
04/28/2010CN101699023A High temperature-resistance external casing packer
04/28/2010CA2683430A1 Method and apparatus for testing swellable materials
04/28/2010CA2642188A1 Downhole well pump
04/27/2010US7703739 Ram BOP shear device
04/27/2010US7703542 Expandable packer system
04/27/2010US7703539 Expandable downhole tools and methods of using and manufacturing same
04/27/2010US7703535 Undersea well product transport
04/27/2010US7703529 Gel capsules for solids entrainment
04/27/2010US7703527 Aqueous two-phase emulsion gel systems for zone isolation
04/27/2010US7703525 Well perforating and fracturing
04/27/2010US7703524 Cutting windows for lateral wellbore drilling
04/27/2010US7703523 Apparatus and method for use in a well bore
04/27/2010US7703522 Methods of underground formation consolidation
04/27/2010US7703521 Polymeric microspheres as degradable fluid loss additives in oilfield applications
04/27/2010US7703517 Downhole sampling tool and method for using same
04/27/2010US7703513 Wax barrier for use with in situ processes for treating formations
04/27/2010US7703512 Packer cup systems for use inside a wellbore
04/27/2010US7703511 Pressure barrier apparatus
04/27/2010US7703508 Wellbore filter for submersible motor-driver pump
04/27/2010CA2678819A1 Downhole apparatus with packer cup and slip
04/27/2010CA2595026C Downhole drilling apparatus and method for use of same
04/27/2010CA2401744C Use of downhole high pressure gas in a gas-lift well
04/27/2010CA2310198C Hold down apparatus for progressing cavity pump
04/22/2010WO2010045102A1 Systems and methods of forming subsurface wellbores
04/22/2010WO2010044059A1 Self-viscosifying and self-breaking gels
04/22/2010WO2010009262A3 Interventionless set packer and setting method for same
04/22/2010WO2009009085A3 High capacity wellhead connector having a single annular piston
04/22/2010US20100096145 Downhole safety valve apparatus and method
04/22/2010US20100096135 rilling fluids, completion fluids, stimulation fluids, and well clean-up fluids; comprising cement, water and nano-silica particles; filling space between pipe string and subterranean formation; compressive strength, shear-bond strength, tensile strength; noncracking; mechanical properties
04/22/2010US20100096134 Well Systems and Associated Methods Incorporating Fluid Loss Control
04/22/2010US20100096133 Method for sealing pipe in a well
04/22/2010US20100096132 Methods and Devices for Forming a Wellbore with Casing
04/22/2010US20100096131 Wiper Plug Perforating System
04/22/2010US20100096119 Shunt Tube Flowpaths Extending Through Swellable Packers
04/22/2010CA2739088A1 Systems and methods of forming subsurface wellbores
04/21/2010EP2177713A1 Methods and apparatus for improved cement plug placement
04/21/2010EP2177712A1 Apparatus and methods for improved cement plug placement
04/21/2010EP2176515A2 Gravel-packing carrier fluid with internal breaker
04/21/2010EP2176514A2 Downhole apparatus
04/21/2010EP2176505A2 Winch assembly
04/21/2010EP2176502A2 Deployment system
04/21/2010CN201439716U Anti-spray well head sampler
04/21/2010CN201439711U Self-locking V-shaped underground sealing throttle
04/21/2010CN201439703U Bypass sliding sleeve
04/21/2010CN201439701U Stage cementing distributor
04/21/2010CN201439700U Blowout-prevention working valve barrel
04/21/2010CN201439699U Simple blowout-preventing controller of lower pole well head of oil well
04/21/2010CN201439698U Special tool for mounting seal packing of oil-production wellhead
04/21/2010CN201439697U Support for gland and pressure cap of packing box
04/21/2010CN201439696U Embedded-type bailing oil production well anti-theft wellhead cap and wrench specially used therefor
04/21/2010CN101696623A Steel wire cord expanding rubber packer for oil or gas well
04/20/2010US7699554 Removable seal carrier for blowout preventer bonnet assembly
04/20/2010US7699115 Method for applying an annular seal to a tubular element
04/20/2010US7699111 Float collar and method
04/20/2010US7699100 Dropping sub method and apparatus
04/20/2010US7698937 Method and apparatus for detecting defects in oilfield tubulars
04/20/2010CA2683236A1 Method and apparatus for sealing wells in co2 sequestration projects
04/20/2010CA2607078C Cable integrity monitor for electromagnetic telemetry systems
04/20/2010CA2472225C Ported subsea wellhead
04/20/2010CA2459733C Assembly for drilling low pressure formation
04/20/2010CA2401068C Isolation of subterranean zones
04/20/2010CA2397480C Expanding a tubular member
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