E21B 33 - Sealing or packing boreholes or wells

Patents for E21B 33 - Sealing or packing boreholes or wells (33,564)
10/2009
10/22/2009	US20090260817 Method and Apparatus to Cement A Perforated Casing
10/22/2009	US20090260816 Method and System for Cementing
10/22/2009	US20090260801 Ring member for a swellable downhole packer
10/22/2009	CA2721376A1 Formation treatment evaluation
10/22/2009	CA2662056A1 Ring member for swellable apparatus, assembly and method
10/21/2009	EP2110508A1 microwave-based downhole activation method for wellbore consolidation applications
10/21/2009	EP2109707A1 A method for recovering fluid from an underwater apparatus submerged in deep water
10/21/2009	CN201330579Y Mechanical type bridging plug
10/21/2009	CN201330578Y A recycling drilling-free cementing tool
10/21/2009	CN201330577Y Antiscale packer
10/21/2009	CN201330576Y Well head gushing-proof device for water injection well test
10/21/2009	CN201330575Y Hydraulic pump blowout prevention box
10/21/2009	CN101560878A Horizontal well even steam injection and test wellhead device
10/21/2009	CN101560877A Horizontal well packer staged fracturing technology tube pillar
10/21/2009	CN101560875A Multifunctional horizontal well completion tubular pile device
10/21/2009	CN101560872A Integral combined cable-passing packer for deep well
10/21/2009	CN101560871A Multi-pipe-column injection test thermal recovery wellhead device
10/20/2009	US7604058 Casing mandrel for facilitating well completion, re-completion or workover
10/20/2009	US7604053 Methods of cementing with lightweight cement composition
10/20/2009	CA2568959C Collar locator for slick pump
10/20/2009	CA2567842C A method and a device for expanding a body under overpressure
10/20/2009	CA2558053C Methods of preparing and using coated particulates
10/20/2009	CA2522918C Apparatus and method for cutting a tubular
10/20/2009	CA2512264C Slip spool assembly and method of using same
10/20/2009	CA2430884C Re-enterable gravel pack system with inflate packer
10/15/2009	WO2009126792A1 Permanent packer using a slurry inflation medium
10/15/2009	WO2009126612A1 Underwater device for rov installable tools
10/15/2009	WO2009126451A2 Sealing devices having a metal foam material and methods of manufacturing and using same
10/15/2009	WO2009126450A1 Multi-piece packer element containment system and method for manufacturing the same
10/15/2009	WO2009126420A1 Straight-bore back pressure valve
10/15/2009	WO2009126413A2 Sealing between alignable windows for lateral wellbore drilling
10/15/2009	WO2009126049A1 Plug construction comprising a hydraulic crushing body
10/15/2009	WO2009099946A3 Variable bore packer for a blowout preventer
10/15/2009	US20090255734 Reinforced stripper rubber body and method of making same
10/15/2009	US20090255692 Zero-Relaxation Packer Setting Lock System
10/15/2009	US20090255691 Permanent packer using a slurry inflation medium
10/15/2009	US20090255690 Multi-Piece Packing Element Containment System
10/15/2009	US20090255687 Sealing Between Alignable Windows for Lateral Wellbore Drilling
10/15/2009	US20090255682 Large Bore Vertical Tree
10/15/2009	US20090255680 Subsea Inflatable Bridge Plug Inflation System
10/15/2009	US20090255675 Sealing devices having a metal foam material and methods of manufacturing and using same
10/15/2009	US20090255674 Sealing By Ball Sealers
10/15/2009	CA2720623A1 Straight-bore back pressure valve
10/15/2009	CA2716064A1 Plug construction comprising a hydraulic crushing body
10/15/2009	CA2662347A1 Improving sealing by ball sealers
10/14/2009	EP1075584B1 Extended reach tie-back system
10/14/2009	CN201326404Y Cement bearing device
10/14/2009	CN201326403Y Self-locking packer
10/14/2009	CN201326402Y Wellhead sealing body
10/14/2009	CN201326401Y Broken well-mouth automatic well shutting system of oil pumping rod
10/14/2009	CN101555779A Interlayer channeling-preventing and well-completing process for inner-tube-free grout filling
10/14/2009	CN101555778A External packer of high temperature pipe
10/14/2009	CN101555777A Control system of ground preventer
10/14/2009	CN101555776A Wellhead blowout preventer of external packer of pipe
10/14/2009	CN100549359C Method and apparatus for replacing BOP with gate valve
10/13/2009	US7601675 Acid ammonium salts of an imide of polymaleic anhydride; hydraulic fracturing fluids used in enhanced oil recovery; subterranean formations
10/13/2009	US7600572 Drillable bridge plug
10/13/2009	US7600571 Method and apparatus for re-entering an abandoned well
10/13/2009	US7600566 Collar locator for slick pump
10/13/2009	CA2601268C Fracturing head with replaceable inserts for improved wear resistance and method of refurbishing same
10/13/2009	CA2582679C Methods and devices for treating multiple-interval well bores
10/13/2009	CA2576461C Tool for dropping objects with rotating barrel
10/13/2009	CA2532990C Continuous monobore liquid lining system
10/13/2009	CA2490295C Packer cups
10/13/2009	CA2463774C Slickline power control interface
10/08/2009	WO2009123805A2 Methods and devices for isolating wellhead pressure
10/08/2009	WO2009122174A1 Underwater power supplies
10/08/2009	WO2009122132A1 Plug release apparatus
10/08/2009	WO2009122120A1 Methods for placement of sealant in subterranean intervals
10/08/2009	WO2009121882A1 Method for in-situ repair of a hole in pipe in pipe tubulars
10/08/2009	WO2009061768A4 Self-energizing annular seal
10/08/2009	WO2008050127A9 Electrical connector with pressure seal
10/08/2009	US20090252626 Rotary Distributor for Pressure Multiplier
10/08/2009	US20090250228 Well packers and control line management
10/08/2009	US20090250227 A System And Method For Plugging A Side Pocket Mandrel Using A Swelling Plug
10/08/2009	US20090250219 Cementing a cased well penetrating a subterranean formation using an extender of finely ground, bituminous sponge coal prepared from coal and/or liquid hydrocarbons; injection of of the cement into the annulus between the casing and the formation; high heat resistance
10/08/2009	US20090250218 Oil-, hot water-and heat-resistant binders, process for preparing them and their use
10/08/2009	US20090250217 Plug Release Apparatus
10/08/2009	CA2719959A1 Plug release apparatus
10/08/2009	CA2718832A1 System and method for recompletion of old wells
10/08/2009	CA2713225A1 Methods and devices for isolating wellhead pressure
10/07/2009	EP2107210A2 Valve, core sampling apparatus and method
10/07/2009	CN201321839Y Multifunctional plugging device for bridge plug
10/07/2009	CN201321838Y Foam generation tank
10/07/2009	CN201321837Y Hydraulic autonomous packer
10/07/2009	CN201321836Y Back-off packer of operation without open flow of water injection well
10/07/2009	CN201321835Y Tubing plug
10/07/2009	CN201321834Y Underground self-sealing by-pass switch
10/07/2009	CN201321833Y 5/'casing perforation completion horizontal well composite string for mechanical layered water detection and blocking
10/07/2009	CN201321832Y Blowout preventer manual locking screw protection device
10/07/2009	CN201321831Y Novel lubricator
10/07/2009	CN201321830Y Split lubricator for closed fishing and polish rod changing without killing well
10/07/2009	CN201321829Y Reducing gas nozzle
10/07/2009	CN201321828Y Blowout preventer for sucker rod
10/07/2009	CN201321819Y Wellhead sliding bushing device
10/07/2009	CN101550815A A bridge plug that blocks off oil tube
10/07/2009	CN101550814A Anti-seepage reciprocating dynamic seal device
10/07/2009	CN101550813A Low-level seal assembly in wellhead
10/07/2009	CN101550812A Blowout dealing workover rig
10/07/2009	CN101550811A Lifting full water depth outer suspension clutch unlock underwater well head cutting recovery combined tool

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