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)
05/2010
05/27/2010CA2686112A1 Aqueous resin compositions and methods for cement repair
05/27/2010CA2673682A1 Down-hole actuation device storage apparatus and method for launching
05/26/2010EP2189622A2 Casing valves system for selective well stimulation and control
05/26/2010EP2189620A1 Bi-directional annulus seal
05/26/2010EP2189618A2 Apparatus for gripping a tubular on a drilling rig
05/26/2010CN201486538U Sand prevention pipe string used for open-hole well completion of side-drilled multilateral well and plug-in type acid cleaning filling inner pipe string thereof
05/26/2010CN201486523U High-pressure water return preventing safety control device in borehole rod below high-pressure water head
05/26/2010CN201486520U Position straightener for oil well processes
05/26/2010CN201486518U Mine rapid filling bag
05/26/2010CN201486517U Stage collar
05/26/2010CN201486516U Bridge isolating tool
05/26/2010CN201486515U Switch type releasing packer
05/26/2010CN201486514U Midway well cleaning packer
05/26/2010CN201486513U Single-open screwed adjustable blanking plug
05/26/2010CN201486512U Blowout plug for oblique borehole protection construction
05/26/2010CN201486511U Variable-diameter flashboard of blowout preventer
05/26/2010CN201486510U Full/half dual-purpose single gate disc blowout preventer
05/26/2010CN201486509U Oil well steam injection blowout preventer
05/26/2010CN201486508U Oilwell swabbing blowout control box
05/26/2010CN201486507U Hydraulic side-door opening blowout preventer
05/26/2010CN201486506U Quick-connecting side-door ram blowout preventer
05/26/2010CN201486505U Novel packing gland of oil production mouth
05/26/2010CN201486504U Wellhead blanking plug of oil well
05/26/2010CN201486503U Integrated type horizontal oil extraction wellhead device
05/26/2010CN201486502U Device capable of sealing well head
05/26/2010CN201486494U Expansion pipe hanging connecting device
05/26/2010CN201483450U Blowout preventer maintenance remover in top drive tubular column
05/26/2010CN1708630B Well completion system and method and method for producing hydrocarbon
05/26/2010CN1703566B Cement through side pocket mandrel
05/26/2010CN101713281A self-expansion bonding packer
05/26/2010CN101713197A Method for sealing foundation pit pressure reduction well
05/26/2010CN101712863A Water plugging agent for carbonatite and preparation method and using method thereof
05/26/2010CN101054893B Dissection type packer
05/25/2010US7723273 Coating metallic surfaces with one of an epoxy resin dispersion and a curing agent dispersion; passing oil, natural gas, and/or process water over the coated surfaces; and contacting the surfaces with the other dispersion and allowing the dispersions to react to form a cured epoxy resin protective layer
05/25/2010US7723271 coating outside surface of pipe with an adhesive thermoplastic resin, running the coated pipe into the wellbore, and causing the temperature of wellbore to increase to a temperature greater than a melting temperature of adhesive thermoplastic resin
05/25/2010US7721810 Large inside diameter completion with position indication
05/25/2010US7721808 Hybrid wellhead system and method of use
05/25/2010US7721799 Flow control packer (FCP) and aquifer storage and recovery (ASR) system
05/25/2010CA2561346C Fluid loss additives for cement slurries
05/25/2010CA2455642C Method for reducing or completely eliminating water influx in an underground formation, and crosslinkable copolymers for implementing said method
05/25/2010CA2389426C Apparatus and method for inserting and retrieving a tool string through well surface equipment
05/20/2010WO2010057003A2 Inserts with swellable elastomer seals for side pocket mandrels
05/20/2010WO2010056779A2 Particulate bridging agents used for forming and breaking filtercakes on wellbores
05/20/2010WO2010056636A1 Support tube for a swell packer, method of manufacturing a swell packer, and method of using a swell packer
05/20/2010WO2010056440A2 Method and system for hydraulically presetting a metal seal
05/20/2010WO2010056439A2 Method and system for setting a metal seal
05/20/2010WO2009136229A3 Technique and apparatus to deploy a cement plug in a well
05/20/2010US20100122822 Single Packer Structure for use in a Wellbore
05/20/2010US20100122821 Packer System With Reduced Friction During Actuation
05/20/2010US20100122820 Seal Arrangement for Expandable Tubulars
05/20/2010US20100122819 Inserts with Swellable Elastomer Seals for Side Pocket Mandrels
05/20/2010US20100122813 Method of Placing Ball Sealers For Fluid Diversion
05/20/2010DE102008056261A1 Device for generation of injection bodies in floor, has centering element achieving centering of valve through its shaping and effecting separating surface in shell body during injection, where separating surface lies transverse to axis
05/19/2010EP2185790A2 Multi-position valve for fracturing and sand control and associated completion methods
05/19/2010EP2185788A1 Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations
05/19/2010EP2185787A1 Bearing assembly inner barrel and well drilling equipment comprising same
05/19/2010CN201474670U Oil layer protector
05/19/2010CN201474669U Plugging tubing string of non-productive well
05/19/2010CN201474662U Underground injection pipe
05/19/2010CN201474661U Quantitative displacing device
05/19/2010CN201474660U Automatic control system for power take-off of cementing cement-discharging tanker
05/19/2010CN201474659U Circulating tool for on-site cementing medicine preparation
05/19/2010CN201474658U Pulley hoop tool
05/19/2010CN201474657U Hole closing stage collar of drilling free machinery
05/19/2010CN201474656U Retrievable water shutoff pipe column tool
05/19/2010CN201474655U Expanded packer used in oil supply
05/19/2010CN201474654U Packer being inflatable when being contacted with oil
05/19/2010CN201474653U Oil well double ball-joint deflection regulating automatic blowout preventer
05/19/2010CN201474652U Three-wing multi-function thermal recovery blowout preventer
05/19/2010CN201474651U Drill stem cutting flashboard
05/19/2010CN201474650U Sleeve pipe shearing flashboard of blowout preventer
05/19/2010CN201474649U Full-aperture blowout preventer in drilling tool
05/19/2010CN201474648U Rotating anti-partial grinding packing set box
05/19/2010CN201474647U Oil well anti-jack apparatus
05/19/2010CN201474646U Self-sealing blowout preventer
05/19/2010CN201474645U Oil and gas well head ball catching device
05/19/2010CN201474644U Multifunctional oil extraction well mouth combined device
05/19/2010CN201474643U Oil extraction well mouth single-tube combined device
05/19/2010CN101709633A Grouting equipment for underworkings
05/19/2010CN101709632A Rotary variable-diameter expansion device
05/19/2010CN101709631A Blowout-prevention connecting-tripping device
05/19/2010CN101709630A Integrated control module for safe shutdown system of wellhead
05/19/2010CN101709624A Automatic loading shotcrete machine for coal mine
05/19/2010CN101050696B Bag type paste injection hole sealing device and its hole sealing method
05/18/2010US7717183 Top-down hydrostatic actuating module for downhole tools
05/18/2010US7717180 for reducing fluid loss in a subterranean formation, and seals a drilling well; prevent the undesirable production of water
05/18/2010US7717179 Method and apparatus to set a plug
05/18/2010US7717176 Permeable cements
05/18/2010US7717168 Reinforced stripper rubber body and method of making same
05/18/2010CA2684273A1 Method of placing ball sealers for fluid diversion
05/18/2010CA2517990C Methods and apparatus for handling and drilling with tubulars or casing
05/14/2010WO2010053812A2 Control package container
05/14/2010WO2010053424A1 System for exchanging energy with a ground
05/14/2010WO2010052502A1 Communication method and apparatus for insert completions
05/14/2010WO2010052490A1 Disposal of well control fluids
05/13/2010US20100116504 Casing annulus tester for diagnostics and testing of a wellbore
05/13/2010US20100116498 Methods for Placement of Sealant in Subterranean Intervals
05/13/2010US20100116497 Method of servicing a wellbore with a sealant composition comprising solid latex
05/13/2010US20100116496 Support tube for a swell packer, swell packer, method of manufacturing a well packer, and method for using a swell packer
05/13/2010US20100116489 Metal Annulus Seal
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