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)
07/2007
07/03/2007CA2214798C Universal pipe injection apparatus for wells and method
06/2007
06/28/2007WO2007071907A1 Method and means to seal the casing-by-casing annulus at the surface for reverse circulation cement jobs
06/28/2007WO2007071266A1 Electrical power system for a subsea system
06/28/2007WO2007052082A3 Blowout preventer
06/28/2007WO2007035707A3 Well cement formulations for increased drilling hardness
06/28/2007US20070144908 Subsea production system
06/28/2007US20070144786 Stripper rubber adapter
06/28/2007US20070144743 Tree mounted well flow interface device
06/28/2007US20070144739 Blending system for solid/fluids mixtures
06/28/2007US20070144734 Inflatable packers
06/28/2007US20070144733 Self boosting packing element
06/28/2007US20070144731 Self-energized downhole tool
06/27/2007EP1799957A1 Blow out preventers
06/27/2007EP1506343B1 System for treating an underground formation
06/27/2007CN2916126Y Separated movable blowout prevention pipe facilitating oilfield injection well testing
06/27/2007CN2916117Y Well-cementing circulation device
06/27/2007CN2916116Y Separated double-plug casing cement head
06/27/2007CN2916115Y Flushing packer
06/27/2007CN2916114Y Oil well head sealing device
06/27/2007CN2916113Y Polish rod sealing device for oil pumping well head
06/27/2007CN2916112Y Dual ship gate type pressurized blowout preventer for workover
06/27/2007CN2916098Y Self-releasing type liner hanger
06/27/2007CN1989312A A method and a device for expanding a body under overpressure
06/27/2007CN1989218A Under-neutralized alkylxylene sulfonic acid composition for enhanced oil recovery processes
06/27/2007CN1323220C High strength and readily soluble nano water shutoff agent
06/26/2007US7234546 Drilling and cementing casing system
06/26/2007US7234542 Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
06/26/2007US7234533 Well packer having an energized sealing element and associated method
06/26/2007US7234531 Mono-diameter wellbore casing
06/26/2007US7234523 Hydraulic friction fluid heater and method of using same
06/26/2007US7234522 Apparatus and method for drilling a wellbore with casing and cementing the casing in the wellbore
06/26/2007US7234517 System and method for sensing load on a downhole tool
06/26/2007US7234347 Internal riser inspection device and methods of using same
06/26/2007CA2402623C Template and system of templates for drilling and completing offsite well bores
06/26/2007CA2399071C Controlling activation of devices
06/26/2007CA2339944C Hydraulic well control system
06/26/2007CA2324761C Adjustable sub-tension hanger
06/26/2007CA2260519C Sealed lateral wellbore junction assembled downhole
06/21/2007WO2007069282A1 Improved stuffing box for pump drive head of oil well
06/21/2007WO2007068118A1 Cam-actuated centrifugal brake for preventing backspin
06/21/2007WO2006060788A3 Downhole swivel apparatus and method
06/21/2007US20070137866 Dual purpose blow out preventer
06/21/2007US20070137863 Method and Apparatus to Provide Electrical Connection in a Wellhead for a Downhole Electrical Device
06/21/2007US20070137861 Methods of cementing using cationic cellulose ethers as fluid loss control additives
06/21/2007US20070137826 Creating a well abandonment plug
06/21/2007CA2632752A1 Improved stuffing box for pump drive head of oil well
06/20/2007EP1798369A2 Deformable seal (DIV II)
06/20/2007EP1798368A2 Side-wall probe assembly
06/20/2007EP1798367A2 Wellhead comprising a tubing hanger with ball valve in the annulus bore
06/20/2007CN2913592Y Mine pore high pressure double-stage smooth rod sealing device
06/20/2007CN2913591Y Error correctable directional smooth rod sealing device for pumping unit having sucker rod
06/20/2007CN2913590Y Error correctable directional smooth rod sealing device for oil field pumping unit with sucker rod
06/20/2007CN2913589Y Anti-theft oil mine pore
06/20/2007CN2913588Y Multifunctional oil-collecting control device for oil extraction pore
06/20/2007CN2913587Y Automatic following error-regulating sealer
06/20/2007CN2913586Y Theft protection installation for oil field pore
06/20/2007CN1985067A Aqueous tackifier and methods of controlling particulates
06/19/2007US7231987 Deep set packer with hydrostatic setting actuator
06/19/2007US7231983 Split locking ring for wellhead components
06/19/2007US7231977 Continuous monobore liquid lining system
06/19/2007US7231976 Method of treating an oil or gas well with biodegradable low toxicity fluid system
06/19/2007US7231975 Borehole stabilisation
06/19/2007US7231970 Non-rotational casing hanger and seal assembly running tool
06/19/2007US7231968 Well cap systems
06/19/2007US7231934 Shut-off actuator with gas generation device
06/19/2007CA2458454C Drillable inflatable packer and methods of use
06/19/2007CA2435382C Device and method to seal boreholes
06/14/2007WO2007067786A1 Plug retrieval and debris removal tool
06/14/2007WO2007066003A1 Plug intended to be inserted into a duct on which a fluid flows and associated fluid prospecting well
06/14/2007WO2007014101A3 Downhole actuation tool
06/14/2007US20070131434 Flow control device with a permeable membrane
06/14/2007US20070131425 Aggregating reagents, modified particulate metal-oxides, and methods for making and using same
06/14/2007US20070131416 Apparatus for gripping a tubular on a drilling rig
06/14/2007US20070131413 Mandrel for introduction into a fluid circulation duct, and related production well
06/14/2007CA2632379A1 Plug intended to be inserted into a duct on which a fluid flows and associated fluid prospecting well
06/14/2007CA2530782A1 Cam actuated centrifugal brake for wellhead drives
06/13/2007EP1794411A2 Downhole safety valve apparatus and method
06/13/2007CN2911174Y Wear-proof composite sealed ram of blowout preventer
06/13/2007CN1981109A Method and apparatus for performing chemical treatments of exposed geological formations
06/12/2007US7228915 Device and method to seal boreholes
06/12/2007US7228914 Interventionless reservoir control systems
06/12/2007US7228912 Method and system to deploy control lines
06/12/2007US7228909 One-way valve for a side pocket mandrel of a gas lift system
06/12/2007US7228905 Zeolite compositions having enhanced compressive strength
06/12/2007US7228897 Cement through side pocket mandrel
06/12/2007US7228896 Ribbed sealing element and method of use
06/12/2007CA2473210C Plug-dropping container for releasing a plug into a wellbore
06/12/2007CA2462195C Expandable packer
06/12/2007CA2456189C Downhole actuation system utilizing electroactive fluids
06/12/2007CA2367491C Wellbore packer with rupture disc
06/07/2007WO2007064235A1 Anchoring system for posts
06/07/2007WO2007063492A2 Packer cups for use inside a wellbore
06/07/2007WO2007026317A3 Methods of forming acid particle based packers for wellbores
06/07/2007US20070125554 Actuating mechanism
06/07/2007US20070125553 Circulation tool
06/07/2007US20070125548 Stripper rubber insert assembly
06/07/2007US20070125545 Method and apparatus for removing cuttings from drilling fluids
06/07/2007US20070125539 Methods of Cementing Subterranean Formations Using Cement Compositions Comprising Maltodextrin
06/07/2007US20070125538 Methods of treating subterranean formations using treatment fluids comprising chlorinated carbohydrates
06/07/2007US20070125537 membranes with selectivity between methane and the stimulant or fracturing gas ( N2 or CO2) are available; enables the gas under treatment to be processed to yield a fracturing-gas depleted stream that meets prescribed targets for composition or methane recovery; automatic monitoring and control means
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