E21B 33 - Sealing or packing boreholes or wells

Patents for E21B 33 - Sealing or packing boreholes or wells (33,564)
12/2013
12/03/2013	US8596356 Method of producing synthesis gas by the underground gasification of coal from a coal seam
12/03/2013	US8596347 Drillable slip with buttons and cast iron wickers
12/03/2013	US8596345 RCD sealing elements with multiple elastomer materials
12/03/2013	CA2755088C Wellhead rotating breech lock
12/03/2013	CA2751320C Stage cementing tool
12/03/2013	CA2750931C Single piece packer extrusion limiter ring
12/03/2013	CA2742446C Stuffing box leak containment apparatus
12/03/2013	CA2559850C Process for producing synthesis gas by steam reformation in a reactor-exchanger
11/2013
11/30/2013	CA2778731A1 Downhole ported shifting sleeve
11/28/2013	WO2013177336A1 Settable compositions comprising cement kiln dust and rice husk ash and methods of use
11/28/2013	WO2013176648A1 Methods and systems for pressure testing components of a hydrocarbon well system
11/28/2013	WO2013173876A1 Method of limiting permeability of a matrix to limit liquid and gas inflow
11/28/2013	US20130313449 Blowout Preventer Ram Assembly and Method of Using Same
11/28/2013	US20130312980 Injecting A Hydrate Slurry Into A Reservoir
11/28/2013	US20130312968 Subterranean treatment fluid composition and method of treatment
11/28/2013	US20130312966 In situ decomposition of carbonyls at high temperature for fixing incomplete and failed well seals
11/28/2013	US20130312963 Method for Combined Cleaning and Plugging in a Well, a Washing Tool for Directional Washing in a Well, and Uses Thereof
11/28/2013	US20130312958 Reservoir treatment
11/28/2013	US20130312953 Inflatable borehole plug
11/28/2013	US20130312952 Down hole tool
11/28/2013	US20130312641 Compositions Comprising Kiln Dust and Wollastonite and Methods of Use in Subterranean Formations
11/28/2013	DE102012010425A1 Device for insertion into holes, has packing unit with standard packer, which is formed with pressure-fluid-filled thick film for primary locking of device to borehole wall and another packer having compressed air filled thin film
11/27/2013	EP2666956A1 A modular electric system located under water
11/27/2013	EP2665888A2 Wellbore apparatus and methods for multi-zone well completion, production and injection
11/27/2013	EP2665887A2 Method for capping a well in the event of subsea blowout preventer failure
11/27/2013	CN203308448U Coal nozzle hole protection device
11/27/2013	CN203308432U Novel well cementation rubber plug
11/27/2013	CN203308431U Intubation tube packer
11/27/2013	CN203308430U Casing pipe packer with automatic locking function
11/27/2013	CN203308429U Experimental device of high-temperature and high-pressure packer rubber sleeve
11/27/2013	CN203308428U Open hole well segmented pressure fracture packer
11/27/2013	CN203308427U Step-by-step deblocking packer
11/27/2013	CN203308426U High-pressure-resistant removable oil pipe blanking plug
11/27/2013	CN203308425U Well washing valve throttling plugging tool
11/27/2013	CN203308424U Circumferential positioning device for tubing hanger
11/27/2013	CN203308423U Multifunctional packing box
11/27/2013	CN203308422U Telescopic fully-closed well head equipment
11/27/2013	CN203308421U Wellhead device capable of preventing inclined shaft sucker rod from being scratched or crashed
11/27/2013	CN203308420U High pressure valve copper sleeve fastening leaking stoppage device for well opening
11/27/2013	CN203308419U Simplified machine pumping wellhead
11/27/2013	CN103410486A Three-in-one composite profile control and displacement process used for oilfield deep profile control
11/27/2013	CN103410469A Spraying type gas extraction hole sealing process
11/27/2013	CN103410468A Motive seal device for expansion pipe
11/27/2013	CN103410467A Hole drilling and sealing device and method with continuous belt pressure
11/27/2013	CN103410466A Polish rod sealer
11/27/2013	CN103410453A Automatic stepping transport truck
11/27/2013	CN103409120A Polymer nano intercalation composite plugging agent as well as preparation method and application thereof
11/27/2013	CN102226384B Subsea blowout preventer stack and control system thereof
11/27/2013	CN102174882B Medium-pressure gas collection technique based on cluster well
11/27/2013	CN102162344B Blowout prevention box for pumping steel wire rope
11/27/2013	CN102022093B Reactive type foamy hole sealing system
11/26/2013	US8592541 Gypsum wallboard
11/26/2013	US8592353 Methods useful for diverting aqueous fluids in subterranean operations
11/26/2013	US8590617 Apparatus and method for providing an alternate flow path in isolation devices
11/26/2013	US8590616 Caged ball fractionation plug
11/26/2013	US8590611 Combination swivel and ball dropper
11/26/2013	CA2752398C Friction bite with swellable elastomer elements
11/26/2013	CA2747149C Filler rings for swellable packers
11/24/2013	CA2816458A1 Well completion using a pumpable seat assembly
11/21/2013	WO2013173159A1 Packing element backup system
11/21/2013	WO2013173084A1 Slip-deployed anti-extrusion backup ring
11/21/2013	WO2013172856A1 Wellbore anchoring system
11/21/2013	WO2013170294A1 Stemming plugs
11/21/2013	WO2013108051A3 Device for a drainage boring system
11/21/2013	WO2012168728A3 Tubular assembly and method of deploying a downhole device using a tubular assembly
11/21/2013	US20130307219 Seal holder andmethod for sealing a bore
11/21/2013	US20130306332 Apparatus And Method For Plugging Blowouts
11/21/2013	US20130306331 Packing element backup system
11/21/2013	US20130306330 Slip-Deployed Anti-Extrusion Backup Ring
11/21/2013	US20130306327 Retrievable Bridge Plug
11/21/2013	US20130306308 Equipment and Methods for Determining Waiting-on-Cement Time in a Subterranean Well
11/21/2013	US20130306306 Polymer composition, swellable composition comprising the polymer composition, and articles including the swellable composition
11/20/2013	EP2663730A1 Flowline divertor seal with spring-energized lips
11/20/2013	EP2315907B1 Wellhead annulus monitoring
11/20/2013	CN203296803U High-pressure extraction hole blowout preventer
11/20/2013	CN203296758U Novel oil field oil extraction pipe string
11/20/2013	CN203296748U Novel float collar float shoe for horizontal well
11/20/2013	CN203296747U Separator integrating multiple functions of water stopping, mud jacking and well cementation
11/20/2013	CN203296746U Fracture packer
11/20/2013	CN203296745U Rubber sleeve protection device of packer
11/20/2013	CN203296744U Step-by-step unsealing washable well packer
11/20/2013	CN203296743U Double-acting temperature-sensitive steam injection packer
11/20/2013	CN203296742U Novel quick connecting device for well cementation cement head
11/20/2013	CN203296741U Pumping unit packing box pressing cap fixing device
11/20/2013	CN203296740U Straight-cylinder type leakage-free wellhead device
11/20/2013	CN203296739U Aligning device of oil tube hanger
11/20/2013	CN203296738U Wellhead pressure test plug
11/20/2013	CN203296737U Device for protecting mouth of long-stopped well in oil field
11/20/2013	CN203296727U Mechanical-hydraulic double-action release rotary tail pipe hanger
11/20/2013	CN203296726U Fast oil well spraying repairing device
11/20/2013	CN103403290A Sealing system for borehole pumps
11/20/2013	CN103403288A Method, system and rock drilling apparatus for installing a pipe in drilled holes in rock drilling
11/20/2013	CN103397863A Double-acting compression type packer and use method thereof
11/20/2013	CN103396774A Plugging agent and preparation method thereof
11/20/2013	CN102383826B Hole sealer and hole sealing process realized by using same
11/20/2013	CN102296978B Coal-face flooding hole packer
11/20/2013	CN102230395B Multifunctional hole packer capable of plugging and injecting
11/20/2013	CN102140901B High pressure resistant drilled hole sealing method
11/20/2013	CN101709631B Blowout-prevention connecting-tripping device
11/20/2013	CN101605963B Configurable wellbore zone isolation system and related methods

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