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
04/15/2010WO2010040544A1 Wellhead valve system for adjusting the flow with integrated multiphase flow rate measuring ability
04/15/2010WO2010040445A1 Multiple activation-device launcher for a cementing head
04/15/2010WO2010014697A3 Subsea well intervention systems and methods
04/15/2010US20100090639 Control System of an Actuator for the Actuation of Submarine Devices
04/15/2010US20100090410 Expandable metal-to-metal seal
04/15/2010US20100089655 Rotating control device with replaceable bowl sleeve
04/15/2010US20100089654 Rotating control device having bearing assembly housing with replaceable wear sleeve
04/15/2010US20100089595 Staging tool seal arrangement for gas wells
04/15/2010US20100089594 Method and apparatus for dropping a pump down plug or ball
04/15/2010US20100089582 Sorel cement compositions, amine phosphono retarders, and associated methods
04/15/2010US20100089141 Downhole annular measurement system and method
04/15/2010CA2739511A1 Multiple activation-device launcher for a cementing head
04/14/2010EP2173967A1 A sealing device for a tubing arrangement
04/14/2010EP1963612B1 Apparatus for gripping a tubular on a drilling rig
04/14/2010CN201437710U Underbalanced well-used combined rubber plug
04/14/2010CN201437709U Barite powder adding cycling device
04/14/2010CN201437708U Permanent packer
04/14/2010CN201437707U Anchor claw inbuilt multi-stage hydraulic cylinder type packer
04/14/2010CN201437706U Novel hydraulic stage collar hole sealing tool for under-balanced well cementation
04/14/2010CN201437705U Grease-filling cable seal blowout preventing box
04/14/2010CN201437704U Packing box with anti-theft performance
04/14/2010CN201437703U Seal ring cavity of packing box of eccentric wellhead
04/14/2010CN201437702U Oil extractor wellhead packing installing device
04/14/2010CN201437701U Well test vehicular lubricator anti-freezing and unfreezing device
04/14/2010CN201437700U Oil extractor feed-rod lubricating device
04/14/2010CN101694152A Multi-level fine choke manifold and automatic control system
04/14/2010CN101073798B Pulse vibration generator and generation method
04/14/2010CA2682621A1 Method and apparatus for use in selectively fracing a well
04/13/2010US7696275 comprises acrylonitrile-butadiene copolymers
04/13/2010US7694746 Large bore packer and methods of setting same
04/13/2010US7694745 Modular well tool system
04/13/2010US7694739 providing cement composition that comprises cementitious component and additive comprising a polymer, a phosphorus component, a polyvalent metal ion, an oil-based liquid, and a surfactant, introducing composition into subterranean formation, allowing composition to set; reduced fluid loss
04/13/2010US7694738 Methods of using wellbore sealant compositions containing cationic latexes
04/13/2010US7694737 Method of blocking water-out zone in a gas well by dumping cement and injecting pressurizing gas
04/13/2010US7694732 Diverter tool
04/13/2010US7694730 Spear type blow out preventer
04/13/2010CA2549941C Foamed fly ash cement compositions and methods of cementing
04/13/2010CA2511249C Method for drilling a lateral wellbore with secondary fluid injection
04/13/2010CA2449664C In-situ casting of well equipment
04/08/2010WO2010039694A2 Method and apparatus for sealing a hole made with a cased hole formation tester
04/08/2010WO2010039685A2 Method and apparatus for forming and sealing a hole in a sidewall of a borehole
04/08/2010WO2010039131A1 Water swelling rubber compound for use in reactive packers and other downhole tools
04/08/2010WO2010038219A2 Configurable hydraulic system
04/08/2010WO2010037993A2 Methods and equipment to improve reliability of pinpoint stimulation operations
04/08/2010WO2010037518A2 Method and device for fusion drilling
04/08/2010WO2009060170A8 Methods of integrating analysis, auto-sealing, and swellable- packer elements for a reliable annular seal
04/08/2010US20100084146 Ball seat sub
04/08/2010US20100084145 Multiple Activation-Device Launcher For A Cementing Head
04/08/2010US20100084143 Tubing hanger seal
04/08/2010US20100084139 Downhole Waterflood Regulator
04/08/2010US20100084136 Power Slip Assembly for Wellhead Casing and Wellbore Tubing
04/08/2010US20100084135 Oil well stage-cementing metal plate
04/08/2010US20100084134 Fracturing method and apparatus utilizing gelled isolation fluid
04/08/2010US20100084129 Non-Metallic Mandrel and Element System
04/08/2010US20100084128 Non-Metallic Mandrel and Element System
04/08/2010US20100084127 Non-Metallic Mandrel and Element System
04/08/2010US20100084126 Non-Metallic Mandrel and Element System
04/08/2010US20100084078 Non-Metallic Mandrel and Element System
04/08/2010CA2741245A1 Method and apparatus for fusion drilling
04/08/2010CA2739409A1 Configurable hydraulic system
04/07/2010EP2172616A2 Umbilical termination assemblies
04/07/2010CN201436369U Positive circulation well reinforcement divice of a high pressure gas underground gas storage well
04/07/2010CN201436368U Electrical heating oil well double-packing box sealing device
04/07/2010CN201436367U Assembling device installed in well shaft
04/07/2010CN101691834A Inner tube-free drillable-retrievable grading cementing well completion technology
04/06/2010US7690436 Pressure isolation plug for horizontal wellbore and associated methods
04/06/2010US7690431 Methods for controlling migration of particulates in a subterranean formation
04/06/2010US7690429 Methods of using a swelling agent in a wellbore
04/06/2010US7690427 isolating zone along well bore by providing first zone along a highly deviated well bore and second zone along the highly deviated well bore wherein first zone is closer to downstream end than second zone, and filling first zone of well bore with sand plug of lightweight degradable particles
04/06/2010US7690426 Method of repairing failed gravel packs
04/06/2010US7690307 Mechanical stemming apparatus for mining blasting operations
04/06/2010CA2556367C Well bore servicing fluids comprising thermally activated viscosification compounds and methods of using the same
04/06/2010CA2382171C Smart shuttles to complete oil and gas wells
04/01/2010WO2010036835A1 Combined tree stab and control interface
04/01/2010WO2010036547A2 Pressure relieving transition joint
04/01/2010WO2010014382A3 Adjustable hanger for inner production riser
04/01/2010WO2010003879A3 A wireline lubricator
04/01/2010US20100078180 Expandable packer system
04/01/2010US20100078176 Combined Tree Stab and Control Interface
04/01/2010US20100078175 Hydraulic Control System
04/01/2010US20100078174 Stress distributing wellhead connector
04/01/2010US20100078173 Downhole device actuator and method
04/01/2010US20100078171 Method and apparatus for sealing a hole made with a cased hole formation tester
04/01/2010US20100078170 Method and apparatus for forming and sealing a hole in a sidewall of a borehole
04/01/2010CA2736804A1 Pressure relieving transition joint
03/2010
03/31/2010EP2169690A1 Pressure compensator
03/31/2010CN201434071Y High-temperature sealing device
03/31/2010CN201433737Y Hydraulic cement umbrella
03/31/2010CN201433736Y Pressure self-sealing cementing head
03/31/2010CN201433735Y Packer special for plugging water
03/31/2010CN201433734Y Connecting device for flashboard blowout preventer side door and blowout preventer housing
03/31/2010CN201433733Y Radial packing box device for oil-pumping well head in oil field
03/31/2010CN201433732Y Polished rod sealer with deviation rectifying function
03/31/2010CN101688439A Christmas tree with internally positioned flowmeter
03/31/2010CN101688438A Running tool for expandable liner hanger and associated methods
03/31/2010CN101684723A Side door sealing element of ram blowout preventer
03/31/2010CN101684722A Method for manufacturing well-head mating device of oil field water injection development well
03/30/2010USRE41173 System for use in controlling a hydrocarbon production well
03/30/2010US7687440 a cationic latex containing monomers such as styrene, butadiene, ethylene, acrylonitrile and a cationic monomer e.g.trimethylaminopropylmethacrylamide; improved magnesium salt-based sealant cement ( free of portland cement) that are more resistant to structural degradation
03/30/2010US7686092 Plug systems and methods for using plugs in subterranean formations
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