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)
06/2010
06/10/2010WO2010064922A1 Wellhead having an integrated safety valve and method of making same
06/10/2010WO2010064920A1 Method to stop wellbore fluid leakage from a spoolable wellbore intervention rod
06/10/2010WO2010063406A1 Apparatus and method for deploying cementing plugs
06/10/2010WO2009051490A8 Casing device
06/10/2010US20100144562 Ceramic microspheres for cementing applications
06/10/2010US20100140876 Sealing gland and methods of use
06/10/2010US20100140516 Bop packing units selectively treated with electron beam radiation and related methods
06/10/2010US20100139930 System and method to seal using a swellable material
06/10/2010US20100139929 Method and system for zonal isolation
06/10/2010US20100139926 System and method for performing intervention operations with a compliant guide
06/10/2010US20100139925 Connector
06/10/2010US20100139920 Dry cement formulation for cementing holes in the earth
06/10/2010US20100139917 System and method for sealing gravel exit ports in gravel pack assemblies
06/10/2010US20100139911 Subterranean well ultra-short slip and packing element system
06/10/2010US20100139461 Granular Particle Gripping Surface
06/10/2010CA2745632A1 Two-stage submersible actuators
06/10/2010CA2745196A1 Method to stop wellbore fluid leakage from a spoolable wellbore intervention rod
06/10/2010CA2744481A1 Sub-sea chemical injection metering valve
06/09/2010EP2194226A1 Apparatus and Method for Deploying Cementing Plugs
06/09/2010EP2193253A1 Bearing assembly retaining apparatus and well drilling equipment comprising same
06/09/2010CN201502356U Detonation soot feeding barrel
06/09/2010CN201502355U High-temperature resistant thermal recovery packer
06/09/2010CN201502354U Thermal recovery packer seal sleeve
06/09/2010CN201502353U Adjustable blanking plug capable of detecting aperture of water nozzle
06/09/2010CN201502352U Multilevel pressure-reducing blowout preventer
06/09/2010CN201502351U Fixing device for packing box gland
06/09/2010CN201502350U Novel well head sealing device
06/09/2010CN201502346U Device for replacing ram of ram preventer
06/09/2010CN101730785A A sealing device for a tubing arrangement
06/09/2010CN101725330A Drilling-and-plugging-free well fixing method and tool
06/09/2010CN101725329A Wellhead sealing device
06/09/2010CN101724182A Method for preparing well fixing rubber stopper from short fibre-rubber composite material
06/09/2010CN101201005B Anchor bar/anchorage cable water stopper and method of use thereof
06/08/2010US7732384 complexing tetra-isopropyl zirconate, triethanolamine, and boric acid in an alcohol solvent; for use in oil field applications such as hydraulic fracturing and plugging of permeable zones and leaks in subterranean formations
06/08/2010US7732383 Process for stabilized zirconium triethanolamine complex and uses in oil field applications
06/08/2010US7730968 Apparatus for wellbore communication
06/08/2010US7730950 Methods for treating intervals of a subterranean formation having variable permeability
06/08/2010CA2525931C Methods of cementing in subterranean zones penetrated by well bores using biodegradable dispersants
06/03/2010WO2010062652A2 Subsea completion with a wellhead annulus access adapter
06/03/2010WO2010062181A1 Method for modifying an existing subsea arranged oil production well, and a thus modified oil production well
06/03/2010WO2010060620A1 Method for monitoring cement plugs
06/03/2010US20100138158 Method and apparatus for testing swellable materials
06/03/2010US20100133864 Gripping means for use with a unit insertable in a pipeline
06/03/2010US20100132960 Drillable bridge plug for high pressure and high temperature environments
06/03/2010US20100132959 Frac Sleeve with Rotational Inner Diameter Opening
06/03/2010US20100132944 Differential filters for removing water during oil production
06/03/2010US20100132940 Focused probe apparatus and method therefor
06/03/2010CA2742577A1 Method for modifying an existing subsea arranged oil production well, and a thus modified oil production well
06/02/2010EP2192263A1 Method for monitoring cement plugs
06/02/2010CN201496053U Acid Fracturing pipe string for setting, construction and acidification layer by layer
06/02/2010CN201496034U Integral oil well head anti-theft temporary blocking ball valve
06/02/2010CN201496030U Automatic hole-closing stage collar assembly device
06/02/2010CN201496029U All-floating slip packer
06/02/2010CN201496028U Inner pipe series tool external inflatable casing packer
06/02/2010CN201496027U compensating self-sealing blowout preventer
06/02/2010CN201496026U Blowout preventer for oil pumping wellhead
06/02/2010CN201496025U Hydraulic rotary well plugging device
06/02/2010CN201496024U Gate valve type polished rod sealer
06/02/2010CN201496023U Paraffin removal device for sucker rod wellhead
06/02/2010CN201496022U High-pressure converter for machine pumping wellhead
06/02/2010CN201496016U Creeping compensator
06/02/2010CN101718190A Completed well body structure with temporary plugging function screen pipe and well completion method for suspending screen pipe at tail pipe
06/02/2010CN101718189A Completed well body structure with temporary plugging function screen pipe and well completion method for injecting cement on top
06/02/2010CN101718183A Intercept type leak stoppage tool for geological drilling and oil and gas well drilling
06/02/2010CN101718182A Ball valve type inside and outside integrative downhole blow-out preventer
06/02/2010CN101718181A Lifting valve type underground inside-outside integrated blowout preventer
06/02/2010CN101718178A Method for continuously washing coal ash under coal bed methane well in bride type without causing pollution
06/02/2010CN101718172A Underground branching device for multi-branch well
06/02/2010CN101718169A Method for implementing six-stage multilateral well completion by posterior inferior three-way branching mechanism
06/02/2010CN101550811B Lifting full water depth outer suspension clutch unlock underwater well head cutting recovery combined tool
06/02/2010CN101139919B Negative pressure well cementing system and control method thereof
06/01/2010US7726418 Method and apparatus for adding a tubular to drill string with diverter
06/01/2010US7726407 Anchor system for packers in well injection service
06/01/2010US7726400 slurry of cement, water and super-absorbent polymer which absorbs free water in slurry to form gel ore when placed in well, and which releases absorbed water to cement hydration reaction as cement sets; poly(2-propenamide-co-2-propenoic acid sodium salt), polyacrylamide, modified crosslinked polyacrylate
06/01/2010US7726393 Wellhead isolation tool and wellhead assembly incorporating the same
06/01/2010CA2591288C Rod pump stuffing box
06/01/2010CA2584531C Linear displacement measurement method and apparatus
06/01/2010CA2560461C Modular design for downhole ecd-management devices and related methods
05/2010
05/27/2010WO2010059638A2 Systems and methods for mitigating annular pressure buildup in an oil or gas well
05/27/2010WO2010059557A2 Use of swellable material in an annular seal element to prevent leakage in subterranean well
05/27/2010WO2010059511A2 Methods for minimizing fluid loss to and determining the locations of lost circulation zones
05/27/2010WO2010058313A1 Single packer structure with sensors
05/27/2010WO2010058224A1 Sealing method and apparatus
05/27/2010WO2010057931A1 Sealing of thief zones
05/27/2010WO2010038219A3 Configurable hydraulic system
05/27/2010WO2010030190A3 Deep water well intervention system
05/27/2010WO2010017208A3 Swelling delay cover for a packer
05/27/2010US20100126736 Bi-Directional Annulus Seal
05/27/2010US20100126735 Use of Swellable Material in an Annular Seal Element to Prevent Leakage in a Subterranean Well
05/27/2010US20100126733 Packer
05/27/2010US20100126725 Coiled tubing bottom hole assembly with packer and anchor assembly
05/27/2010US20100126723 Fluid Loss Control
05/27/2010US20100126722 Wellbore system and method of completing a wellbore
05/27/2010US20100126714 Plug Device
05/27/2010CA2829436A1 Use of swellable material in an annular seal element to prevent leakage in a subterranean well
05/27/2010CA2744068A1 Sealing method and apparatus
05/27/2010CA2743638A1 Use of swellable material in an annular seal element to prevent leakage in a subterranean well
05/27/2010CA2743504A1 Methods for minimizing fluid loss to and determining the locations of lost circulation zones
05/27/2010CA2743164A1 Systems and methods for mitigating annular pressure buildup in an oil or gas well
05/27/2010CA2743114A1 Single packer structure with sensors
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