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)
12/2012
12/06/2012WO2012167240A2 Sealing devices for sealing inner wall surfaces of a wellbore and methods of installing same in a wellbore
12/06/2012WO2012166930A2 Method of reducing deflection through a rod piston in a subsurface safety valve
12/06/2012WO2012166928A2 Downhole tools having radially expandable seat member
12/06/2012WO2012166396A1 Variably configurable wellbore junction assembly
12/06/2012WO2012166234A1 High temperature crosslinked polysulfones used for downhole devices
12/06/2012WO2012164053A2 Plugging device
12/06/2012WO2012164051A2 Extrusion preventing supporting device
12/06/2012WO2012163784A1 Hot stab and receptacle assembly
12/06/2012WO2012162792A1 Wellbore cementing tool having one way flow
12/06/2012WO2012106061A3 Blowout preventer seal and method of using same
12/06/2012WO2012095485A3 Subsea tree jumper assembly
12/06/2012WO2012095484A3 Subsea tree assembly with top routing
12/06/2012WO2012095477A3 Subsea xmas tree assembly
12/06/2012US20120305270 Down-hole actuation device storage apparatus and method for launching
12/06/2012US20120305262 Subsea pressure relief devices and methods
12/06/2012US20120305259 Annulus vent system for subsea wellhead assembly
12/06/2012US20120305253 Sealing devices for sealing inner wall surfaces of a wellbore and methods of installing same in a wellbore
12/06/2012US20120305250 Non-invasive cement spacer fluid compositions, spacer fluid products, methods of well operation and well apparatus
12/06/2012US20120305249 Method and system for abandoning a borehole
12/06/2012US20120305248 Drilling fluid that when mixed with a cement composition enhances physical properties of the cement composition
12/06/2012US20120305238 High Temperature Crosslinked Polysulfones Used for Downhole Devices
12/06/2012US20120305237 Tool for removing wellhead components
12/06/2012US20120305236 Downhole tools having radially expandable seat member
12/06/2012US20120305102 Internal Blow Out Preventer
12/06/2012DE102010025053A1 Device for closing defective oil well, has probe which consists of hollow vessel, particularly hollow cylinder, whose diameter is smaller than bore, and elastically closed vessel or pressure chamber is provided
12/06/2012CA2837592A1 A method of conditioning a wall of a bore section
12/06/2012CA2837510A1 Method of reducing deflection through a rod piston in a subsurface safety valve
12/06/2012CA2836918A1 Variably configurable wellbore junction assembly
12/06/2012CA2836629A1 Wellbore cementing tool having one way flow
12/05/2012EP2529077A1 Underwater stuffing box and a method for running a drill string through the stuffing box
12/05/2012EP2529076A2 A tool for installing units in a well
12/05/2012CN202578674U Well-mouth anti-spurting testing device
12/05/2012CN202578668U Downhole parameter direct reading and testing integrated machine for vertical well and horizontal well of oil field
12/05/2012CN202578627U Oil field abandoned mud reinjection pry
12/05/2012CN202578626U Wire line coring hole perfusion device
12/05/2012CN202578625U Hydraulic control drilling-free type well cementation grading hoop
12/05/2012CN202578624U Small drilling liner cementing packer
12/05/2012CN202578623U Expansion and compression type packer device
12/05/2012CN202578622U Novel anti-blockage joint for inner blowout prevention tool of gas drilling
12/05/2012CN202578621U Shunting pressure reducer for oil well blowout prevention box
12/05/2012CN202578620U Blowout preventer for water detection and release
12/05/2012CN202578619U Anti-theft packing box
12/05/2012CN202578618U Oil well anti-spurting device
12/05/2012CN202578617U Christmas tree anti-theft screwed plug
12/05/2012CN202578616U Adjustable orifice sealing device for geological drilling
12/05/2012CN202578615U Annulus pressure monitoring sealing device for geological drilling
12/05/2012CN202578614U Well head device special for oil gas well fracturing construction
12/05/2012CN202578589U Multifunctional string capable of washing well, logging and layering profile control flooding
12/05/2012CN102812202A High Pressure Seal Adapter For Splitter Conductor Housing To Wellhead Connection
12/05/2012CN102808607A Plunger device for gas well online measurement and plunger type drainage gas recovery system
12/05/2012CN102808604A Fracturing high-pressure packing and filling mechanism
12/05/2012CN102808594A Device and method for multi-stage layering sand prevention and well completion by one-step pipe column
12/05/2012CN102808593A Cement head device with large inner diameter and in direct-buckle quick connection
12/05/2012CN102808592A Annulus vent system for subsea wellhead assembly
12/05/2012CN102808591A Subsea wellhead assembly
12/05/2012CN102808590A Expandable anchoring mechanism
12/05/2012CN102808584A Mechanical water plugging pipe column for multi-point discharge of cased hole completion multi-section fractured horizontal well and method
12/05/2012CN102536202B Method for manufacturing test piece for testing gas storage well completion sleeve-cement ring bonding strength
12/05/2012CN102011606B Reaction type foam hole sealing multi-baffle sealing device
12/05/2012CN101899958B Blowout prevention plug inside floater type oil pipe and blowout prevention method
12/05/2012CN101886530B Deepwater blowout preventer set electric control system based on FPGAs (Field Programmable Gate Arrays)
12/05/2012CN101608538B External packer of expanding sealing sleeve of internal pipe string tool and construction technique
12/04/2012US8324137 Latex compositions comprising pozzolan and/or cement kiln dust and methods of use
12/04/2012US8322451 Downhole apparatus and method
12/04/2012US8322450 Wellbore packer
12/04/2012US8322432 Subsea internal riser rotating control device system and method
12/04/2012US8322429 Interchangeable subsea wellhead devices and methods
12/04/2012US8322425 System and method for controlling one or more fluid properties within a well in a geological volume
12/04/2012US8322423 Oil-based grouting composition with an insulating material
12/04/2012US8322421 Lewis acid as gelation retarder for crosslinkable polymer compositions
12/04/2012US8322415 Instrumented swellable element
12/04/2012US8322414 Surface detection of failed open-hole packers using tubing with external tracer coatings
12/03/2012CA2778745A1 Eutectic salt inflated wellbore tubular patch
11/2012
11/29/2012WO2012162159A1 Borehole seal, backup and method
11/29/2012WO2012162117A1 Wellbore fluid used with swellable elements
11/29/2012WO2012161961A2 Verification of swelling in a well
11/29/2012WO2012161797A1 Shear laser module and method of retrofitting and use
11/29/2012WO2012161789A1 Laser assisted blowout preventer and methods of use
11/29/2012WO2012161587A1 Method and arrangement for establishing and operating a riser less coiled tubing
11/29/2012WO2012161585A1 Method and device for supply of liquids for kill and scale to a subsea well
11/29/2012WO2012160416A1 Inflatable bag assembly
11/29/2012WO2012160340A1 Method for quantifying cement blend components
11/29/2012WO2012159466A1 Underground annular blowout preventer and assembly process thereof
11/29/2012WO2012138556A3 Borehole metal member bonding system and method
11/29/2012WO2012106452A3 Coiled tubing module for riserless subsea well intervention system
11/29/2012WO2012074836A4 Removable insert for formation of a recess in a tubular by expansion
11/29/2012US20120299246 Borehole seal, backup and method
11/29/2012US20120298380 Annular isolation with tension-set external mechanical casing (EMC) packer
11/29/2012US20120298377 Velocity Strings
11/29/2012US20120298360 Methods for Placement of Sealant in Subterranean Intervals
11/29/2012US20120298359 Sealing method and apparatus
11/29/2012US20120298358 Method for quantifying cement blend components
11/29/2012US20120298349 Packer for Sealing Against a Wellbore Wall
11/29/2012CA2837250A1 Improved annular isolation with tension-set external mechanical casing (emc) packer
11/29/2012CA2836582A1 Wellbore fluid used with swellable elements
11/29/2012CA2836543A1 Verification of swelling in a well
11/29/2012CA2835039A1 Method for quantifying cement blend components
11/29/2012CA2834795A1 Borehole seal, backup and method
11/29/2012CA2827963A1 Shear laser module and method of retrofitting and use
11/29/2012CA2827958A1 Laser assisted blowout preventer and methods of use
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