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)
03/2014
03/19/2014CN103643917A Inward pushing type packer
03/19/2014CN103643916A Exploratory-hole layered pumping test sealing water stop device
03/19/2014CN103642474A Low damage rubber plug thickening agent used for hydraulic fracturing, rubber plug composition and application thereof
03/19/2014CN102322239B High-energy mixer for well cementation in oil and gas fields
03/18/2014US8672058 Method for repairing aberrations along a drill bore wall
03/18/2014US8672057 Method for controlling loss of drilling fluid
03/18/2014US8672041 Convertible downhole devices
03/18/2014US8672037 Plug removal and setting system
03/18/2014US8672030 System for cementing tubulars comprising a mud motor
03/18/2014US8672029 System for reducing foam in mixing operations
03/18/2014US8672028 Settable compositions comprising interground perlite and hydraulic cement
03/18/2014CA2816126A1 Magnesium chloride in alcoholic solvent for sorel cement
03/18/2014CA2685561C Method and apparatus for connecting drilling riser strings and compositions thereof
03/18/2014CA2607289C Tubular running tool and method of using same
03/18/2014CA2558115C Mechanical setting tool for an expandable packer
03/14/2014CA2837997A1 Multi-stage well isolation
03/13/2014WO2014039622A1 Blowout preventer status assembly
03/13/2014WO2014038956A1 Seal assembly
03/13/2014WO2014038955A1 Seal assembly
03/13/2014WO2014038954A1 Seal assembly and seal ring
03/13/2014WO2014036658A1 Latching assembly
03/13/2014WO2014015104A3 Asymmetrical button for ram-type blowout preventers
03/13/2014WO2013103785A3 One trip toe-to-heel gravel pack and liner cementing assembly
03/13/2014WO2013066825A3 Traversable, segmented wellbore obstructions
03/13/2014US20140069661 Annulus seal with stepped energizing ring
03/13/2014US20140069660 Apparatus, methods, and systems for filling and circulating fluid in tubular members
03/13/2014US20140069656 Systems and methods for detecting leaks in subsea cement and wellbore equipment
03/13/2014US20140069646 E-ring divot back-out lock
03/13/2014US20140069632 Load Enhanced Locking Arrangement
03/13/2014US20140069631 Pin-Actuated Lock Ring Arrangement
03/13/2014US20140069630 Integrated wellhead assembly
03/13/2014US20140069531 Blowout Preventer Status Assembly
03/13/2014DE102010025227A1 Vorrichtung, die eine defekte Ölquelle schließen kann Device that can connect a broken oil well
03/13/2014CA2838094A1 Multi-stage well isolation and fracturing
03/12/2014EP2706189A2 An annular barrier with a diaphragm
03/12/2014EP2706188A2 Annular barrier with a diaphragm
03/12/2014EP2706187A2 Standoff device for downhole tools using slip elements
03/12/2014EP2705215A2 Single upset landing string running system
03/12/2014EP2705214A2 Adjustment and restraint system for a subsea flex joint
03/12/2014EP2705207A2 Liner cementation process and system
03/12/2014CN203479470U Internal blowout preventer automatic pressure test device
03/12/2014CN203476282U Staged fracturing packer of horizontal well
03/12/2014CN203476281U Expanding-type leakage-proof well-flushing packer
03/12/2014CN203476280U Improved oil sleeve gas tightness detection packer
03/12/2014CN203476279U Sealing device of oil well compression type external casing packer
03/12/2014CN203476278U Grouting type hole sealing and automatic water discharging device for underground drilling gas extraction
03/12/2014CN203476277U Multifunctional H2S and CO2-resistant gas production gas-injection well mouth device casing head in exposed environment
03/12/2014CN203476276U Well opening pressure relief device for adjustable double-acting well plugging device
03/12/2014CN203476275U Polished rod sealing device
03/12/2014CN203476274U Lifting cross of deep-sea oil field well head device
03/12/2014CN103635655A Optimized pressure drilling with continuous tubing drill string
03/12/2014CN103632410A Black box of deepwater blowout preventer system
03/12/2014CN103628839A Blowout preventer for oil field equipment
03/12/2014CN103628838A Sealing technology for packing box of oil pumping unit
03/12/2014CN103628835A Internally pushed hanger
03/12/2014CN102587852B Drilling liner hanger and setting tool
03/12/2014CN102312663B Leakage blocking device for leaking oil well
03/12/2014CN102124182B Wellhead annulus monitoring
03/12/2014CN101942981B Open hole packer with double rubber drums
03/12/2014CN101460700B Packer sealing element with shape memory material
03/12/2014CA2873198A1 Multi-stage well isolation and fracturing
03/12/2014CA2838092A1 Multi-stage well isolation and fracturing
03/11/2014US8668021 Energizing ring nose profile and seal entrance
03/11/2014US8668019 Dissolvable barrier for downhole use and method thereof
03/11/2014US8668003 Cement head with integrated energy supply for operating valves
03/11/2014CA2747186C Cement compositions comprising stevia retarders
03/11/2014CA2582970C Coated tools for use in oil well pipes
03/06/2014WO2014036545A1 Methods for maintaining zonal isolation in a subterranean well
03/06/2014WO2014036431A2 Stabilized valve
03/06/2014WO2014036215A1 Cap system for subsea equipment
03/06/2014WO2014036092A1 Method and system for recovering, and displacing fluid from, a pipe
03/06/2014WO2014035975A1 Subsea electronic data system
03/06/2014WO2014035923A1 Acid-soluble cement compositions comprising cement kiln dust and methods of use
03/06/2014WO2014035810A1 Wellbore servicing compositions and methods of making and using same
03/06/2014WO2014035774A2 Seal assembly for a casing hanger
03/06/2014WO2014035420A1 Electronic rupture discs for interventionless barrier plug
03/06/2014WO2014035384A1 Safety valve with lockout capability and methods of use
03/06/2014WO2014035380A1 Expandable tie back seal assembly
03/06/2014WO2014035375A1 Riser displacement and cleaning systems and methods of use
03/06/2014WO2014035369A1 Constructed annular safety valve element package
03/06/2014WO2014035256A1 Hydraulic cylinder device
03/06/2014WO2014035255A1 Seal retainer device
03/06/2014WO2014035254A1 Water damper device
03/06/2014WO2014011549A3 Insulating annular fluid
03/06/2014WO2014006149A9 Dynamic annular sealing apparatus
03/06/2014WO2013068739A3 Improved monitoring of subsea installations
03/06/2014US20140062025 Seal Assembly For A Casing Hanger
03/06/2014US20140061516 Stabilized Valve
03/06/2014US20140061514 Ball valve having actuator of blow out prevention
03/06/2014US20140060855 Angled-penetrator device and system
03/06/2014US20140060850 Control system for a subsea well
03/06/2014US20140060849 Cap System for Subsea Equipment
03/06/2014US20140060847 Device for Operations in Proximity of an Underwater Installation
03/06/2014US20140060836 Methods for Maintaining Zonal Isolation in A Subterranean Well
03/06/2014US20140060835 Invert emulsion transition fluid containing calcium aluminate cement
03/06/2014US20140060834 Controlled Electrolytic Metallic Materials for Wellbore Sealing and Strengthening
03/06/2014US20140060815 Functionally gradient elastomer material for downhole sealing element
03/06/2014US20140060811 Downhole elastomeric components including barrier coatings
03/06/2014US20140060810 Systems, methods, and devices for isolating portions of a wellhead from fluid pressure
03/06/2014US20140060806 Systems, methods, and devices for isolating portions of a wellhead from fluid pressure
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