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)
10/2012
10/03/2012CN101514616B Low pre-tightening force adjustable heat extraction packing box
10/03/2012CN101424173B Piston type thermal extraction casing head
10/02/2012USRE43697 Drilling quick connectors
10/02/2012US8278250 Methods useful for diverting aqueous fluids in subterranean operations
10/02/2012US8276678 Support assembly for a deformable sealing element for a downhole tool
10/02/2012US8276677 Coiled tubing bottom hole assembly with packer and anchor assembly
10/02/2012US8276672 Bimetallic diaphragm for trapped fluid expansion
10/02/2012US8276670 Downhole dissolvable plug
10/02/2012US8276666 Sealant compositions and methods of use
10/02/2012US8276665 Plug release apparatus
10/02/2012US8276657 Well fluid sampling system for use in heavy oil environments
10/02/2012CA2684978C Use of curable liquid elastomers to produce gels for treating a wellbore
10/02/2012CA2587395C Pressure testing plug with layered glass discs
10/02/2012CA2514492C System and method for maintaining zonal isolation in a wellbore
10/01/2012CA2773413A1 Downhole tool with pumpable section
09/2012
09/27/2012WO2012129016A2 Sliding stage cementing tool
09/27/2012WO2012128644A2 Apparatus and method for positioning of a fluidized plugging material in an oil well or gas well
09/27/2012WO2012127227A2 Blow out preventer
09/27/2012WO2012127180A2 Sealing assembly
09/27/2012WO2012091840A3 Isolation of zones for fracturing using removable plugs
09/27/2012WO2012074836A3 Removable insert for formation of a recess in a tubular by expansion
09/27/2012WO2012016947A3 Method and system for performing well operations
09/27/2012WO2011107734A3 Super shoe swell packer
09/27/2012US20120241663 Sealing apparatus and method
09/27/2012US20120241175 Positionless Expanding Lock Ring For Subsea Annulus Seals For Lockdown
09/27/2012US20120241162 Casing hanger lockdown slip ring
09/27/2012US20120241155 Compositions and methods for cleaning a wellbore prior to cementing
09/27/2012US20120241154 Sliding stage cementing tool
09/27/2012CA2830856A1 Sealing assembly
09/27/2012CA2830024A1 Blow out preventer
09/27/2012CA2827973A1 Methods of fluid loss control and fluid diversion in subterranean formations
09/26/2012EP2503095A1 Method for on-site repair of a lip of a well head.
09/26/2012EP2501894A2 Open-hole packer for alternate path gravel packing, and method for completing an open-hole wellbore
09/26/2012EP2501890A2 Swellable connection system and method of using the same
09/26/2012CN202451203U Mining gas drainage and coal-bed flooding integrated hole packer
09/26/2012CN202451112U Re-operating blowout preventing tail pipe valve for well completion
09/26/2012CN202451107U Movable dry blending device
09/26/2012CN202451106U Automatic reset-type float collar
09/26/2012CN202451105U End part outburst-prevention protection device for self-expanding packer
09/26/2012CN202451104U Outside casing inner pipe-free plugging and channeling well completion tool
09/26/2012CN202451103U Tubing plug
09/26/2012CN202451102U Wellhead blowout-controlling blowout preventer
09/26/2012CN202451101U Device for preventing unstability of underwater wellhead of deepwater drilling well
09/26/2012CN202451100U Well head sealer
09/26/2012CN102695846A Process and apparatus to improve reliability of pinpoint stimulation operations
09/26/2012CN102691493A Continuous oil pipe sectional sand-blasting perforation casing fracturing pipe column and casing fracturing method
09/26/2012CN102691492A System and process of screen pipe completion and cross oil layer cementing for steam injection heavy oil well
09/26/2012CN102691489A Method for on-site repair of lip of well head
09/26/2012CN102691488A Device and method for sealing opening of oil well by dynamic plastic injection of packing
09/26/2012CN102691486A Casing hanger lockdown slip ring
09/26/2012CN101761320B Rotary ring-shaped blowout preventer
09/26/2012CN101575953B Unit equipment of pipe laying and mixing water
09/26/2012CN101550814B Anti-seepage reciprocating dynamic seal device
09/25/2012US8272444 Method of testing a drilling riser connection
09/25/2012US8272440 Methods for placement of sealant in subterranean intervals
09/25/2012US8272435 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well
09/25/2012US8272433 Wellhead isolation tool and wellhead assembly incorporating the same
09/25/2012CA2697605C Packer providing multiple seals and having swellable element isolatable from the wellbore
09/25/2012CA2666180C Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell
09/23/2012CA2734901A1 Elastomeric seal for rotating heads
09/21/2012CA2771577A1 Use of high ratio aqueous alkali silicates for profile modification, water control and stabilization
09/20/2012WO2012125326A1 A method to shut down a high pressure oil/gas well that is leaking under blowout conditions
09/20/2012WO2012125196A1 Composite frac ball
09/20/2012WO2012051409A4 Apparatus including metal foam and methods for using same downhole
09/20/2012US20120234561 Dual wiper plug system
09/20/2012US20120234555 Wellbore Method and Apparatus For Completion, Production and Injection
09/20/2012US20120234553 Mechanism for plugging subsea leaks
09/20/2012US20120234546 System and method for fracturing a formation and a method of increasing depth of fracturing a formation
09/20/2012US20120234541 Settable Compositions Comprising Cement Kiln Dust and Rice Husk Ash and Methods of Use
09/20/2012US20120234540 Particulate Flow Enhancing Additives and Associated Methods
09/20/2012US20120234539 Lubrication system for a reciprocating apparatus
09/20/2012US20120234538 Composite frac ball
09/20/2012US20120234534 Wellhead Ball Launch and Detection System and Method
09/20/2012US20120234531 Seal configuration for top drive swivel apparatus and method
09/19/2012CN202441418U Gas gathering device
09/19/2012CN202441417U Coal mine gas extracting hole sealing device
09/19/2012CN202441412U High pressure water injection hole packer
09/19/2012CN202441324U Composite rubber plug of oil well
09/19/2012CN202441323U Sample injector of cyanide setting class blocking agent for rock core simulation blocking experiment
09/19/2012CN202441322U Packer for intelligent well completion
09/19/2012CN202441321U Rubber cylinder of packer
09/19/2012CN202441320U Well flushing high pressure packer
09/19/2012CN202441319U Flexible rubber packer
09/19/2012CN202441318U Long rubber sleeve packer of casing deformation well
09/19/2012CN202441317U Shock-absorption sealing steam-injection packer
09/19/2012CN202441316U Oil well water plugging packer
09/19/2012CN202441315U Oil tube splashing-prevention device
09/19/2012CN202441314U Metal sealing thermal production casing head
09/19/2012CN202441313U Single-barrel double-well offshore thermal production wellhead device
09/19/2012CN202441312U Anti-theft oil well sampling device
09/19/2012CN202441311U Annulus logging wellhead device
09/19/2012CN202441310U Hydraulic control well closing device
09/19/2012CN202441309U Side shaking type rush blowout control device
09/19/2012CN202441308U Novel anti-theft gate
09/19/2012CN202441307U Built-in anti-theft blowout preventer
09/19/2012CN202441306U Christmas tree anti-theft and splashing-prevention and special wrench thereof
09/19/2012CN202441305U Multipurpose wellhead device for stream injection and oil production
09/19/2012CN202441304U Sucker rod base sealing device
09/19/2012CN202441089U Heapstead for development of oil and gas field
09/19/2012CN102686825A Seal holder and method for sealing a bore
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