E21B 33 - Sealing or packing boreholes or wells

Patents for E21B 33 - Sealing or packing boreholes or wells (33,564)
11/2006
11/08/2006	CN2835538Y Ribbon wound sealer for pumping well polish rod
11/08/2006	CN2835537Y Apparatus for stripping sucker rod under pressure for oil well
11/08/2006	CN1860284A Expandable wellbore assembly
11/08/2006	CN1860282A Method of suspending, completing and working over a well
11/08/2006	CN1858399A Electric hydraulic packer for oil pipe
11/08/2006	CN1858398A Back-off packer
11/08/2006	CN1858397A Diameter adjustable blowout preventer for oil field
11/08/2006	CN1283678C Process for synthesizing specific carboxylic styrene butadiene latex for well cementation of oil-gas field
11/07/2006	US7133778 Methods for selecting a cementing composition for use
11/07/2006	US7131497 Articulated drillstring entry apparatus and method
11/07/2006	US7131493 Methods of using sealants in multilateral junctions
11/07/2006	US7131491 Aqueous-based tackifier fluids and methods of use
11/03/2006	CA2545565A1 Device which is expandable to engage the interior of a tube
11/02/2006	WO2006115571A1 Adaptor apparatus for removal of a plug assembly from a well bore
11/02/2006	WO2005001237A8 Downhole activatable annular seal assembly
11/02/2006	US20060245469 Subsea and landing string distributed temperature sensor system
11/02/2006	US20060243457 Energized thermoplastic sealing element
11/02/2006	US20060243456 Pressure responsive centralizer
11/02/2006	US20060243445 One-Trip Cut-to-Release Apparatus and Method
11/02/2006	US20060243444 apparatus for radially expanding and plastically deforming a tubular member
11/02/2006	US20060243442 Methods and compositions for enhancing hydrocarbon production
11/02/2006	US20060243434 Adaptor apparatus for removal of a plug assembly from a well bore
11/01/2006	CN2833099Y High-pressure drillable bridge plug
11/01/2006	CN2833098Y Unidirectional ring-through combined blocking tools
11/01/2006	CN2833097Y Inside-packed type water detection and blocking sequence switch
11/01/2006	CN2833096Y Secondary sealing device for thick oil well mouth
10/2006
10/31/2006	US7128162 Method and apparatus for positioning a sleeve down hole in a hydrocarbon producing well and pipelines
10/31/2006	US7128157 Method and apparatus for treating a well
10/31/2006	US7128154 Single-direction cementing plug
10/31/2006	US7128149 Apparatus and methods for improved fluid displacement in subterranean formations
10/31/2006	US7128148 Well treatment fluid and methods for blocking permeability of a subterranean zone
10/31/2006	US7128145 High expansion sealing device with leak path closures
10/31/2006	US7128143 Externally activated seal system for wellhead
10/31/2006	CA2398001C Isolation of subterranean zones
10/31/2006	CA2239096C Tubing injection systems for land and under water use
10/26/2006	WO2006113338A2 Encapsulated back-up system for use with seal system
10/26/2006	WO2006111752A1 Lubricator system
10/26/2006	US20060237194 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well
10/26/2006	US20060237193 Casing mandrel with well stimulation tool and tubing head spool for use with the casing mandrel
10/26/2006	US20060237192 Lost circulation composition
10/26/2006	US20060237191 Model HCCV hydrostatic closed circulation valve
10/26/2006	US20060237189 Method of suspending, completing and working over a well
10/26/2006	US20060237186 Cementing system for wellbores
10/26/2006	CA2604343A1 Encapsulated back-up system for use with seal system
10/25/2006	EP1714003A1 Well bore servicing fluids comprising thermally activated viscosification compounds and methods of using the same
10/25/2006	EP1714002A1 Cement compositions with improved corrosion resistance and methods of cementing in subterranean formations
10/25/2006	CN2830635Y Automatic deflection regulating sealing device of hot extracting polished rod for heavy oil
10/25/2006	CN2830634Y Automatic safety protector of wellhead
10/25/2006	CN2830633Y Universal auto correcting deflection wellhead
10/25/2006	CN1281846C Method and appts. for stimulation of multiple formation intervals
10/24/2006	US7124831 Resin impregnated continuous fiber plug with non-metallic element system
10/24/2006	US7124829 Tubular expansion fluid production assembly and method
10/24/2006	US7124828 Apparatus for retaining two strings of tubulars
10/24/2006	US7124826 Procedures and equipment for profiling and jointing of pipes
10/24/2006	US7124821 Apparatus and method for expanding a tubular
10/24/2006	US7124816 Liquid separation device
10/24/2006	CA2469971C Slip system for retrievable packer
10/24/2006	CA2453367C Choke valve assembly for downhole flow control
10/24/2006	CA2450515C Plug and ball seat assembly
10/24/2006	CA2446264C Rotational mounts for blowout preventer bonnets
10/24/2006	CA2395845C Multiple conduit passage through a wellhead
10/24/2006	CA2228732C Inflatable tubular sleeve for tubing or obturating a well or a pipe
10/24/2006	CA2143926C Waterborne fluid and process using hydrophobically modified cellulosic derivatives as filtrate reducing agents
10/19/2006	WO2006109035A1 Control system design for a mixing system with multiple inputs
10/19/2006	WO2006109031A1 Improved packer
10/19/2006	WO2006109008A1 Apparatus for removing debris in a wellbore
10/19/2006	US20060234875 Wellbore treatment kits for forming a polymeric precipitate to reduce the loss of fluid to a subterranean formation
10/19/2006	US20060231260 Device and a method for optional closing of a section of a well
10/19/2006	US20060231255 Methods of using a polymeric precipitate to reduce the loss of fluid to a subterranean formation
10/19/2006	US20060231251 Well fluids and methods of use in subterranean formations
10/19/2006	CA2648340A1 Improved packer
10/18/2006	EP1712732A1 Liner hanger, running tool and method
10/18/2006	EP1712731A1 Liner hanger, running tool and method
10/18/2006	EP1712730A2 Liner hanger, running tool and method
10/18/2006	EP1712729A2 Liner hanger, running tool and method
10/18/2006	EP1712727A1 Method of completing a subterranean well and associated apparatus
10/18/2006	EP1649136B1 System for sealing a space in a wellbore
10/18/2006	EP1339937A4 Improved method for stimulation of liquid flow in a well
10/18/2006	EP1104517B1 Spring compression seal
10/18/2006	CN2828305Y Device for preventing leakage of crude oil in oil pipe
10/18/2006	CN2828304Y Double-flashboard blow-out preventer for well repairing work
10/18/2006	CN2828303Y Oil pumping blow well head device
10/18/2006	CN2828302Y Packing box for adding packing without well stopping
10/18/2006	CN1849438A Downhole polymer plug and liner and methods employing same
10/18/2006	CN1280443C Expanding metal material and bulged tube device for petroleum oil well
10/17/2006	US7123162 Subsea communication system and technique
10/17/2006	US7121352 Isolation of subterranean zones
10/17/2006	US7121349 Wellhead protector
10/17/2006	US7121348 Mounts for blowout preventer bonnets
10/17/2006	US7121346 Intervention spool for subsea use
10/17/2006	US7121345 Subsea tubing hanger lockdown device
10/17/2006	US7121344 Plug installation system for deep water subsea wells
10/17/2006	US7121338 Probe isolation seal pad
10/17/2006	US7121337 Apparatus for expanding a tubular member
10/17/2006	CA2314816C Settable spotting fluid compositions and methods
10/12/2006	WO2006106406A1 An arrangement and a method for heat transport and use in connection with subsea equipment
10/12/2006	WO2006045998A3 Methods for producing fluids from acidized and consolidated portions of subterranean formations
10/12/2006	US20060225923 Drilling assembly and method for drilling a barehole into geological formations
10/12/2006	US20060225894 Quick connector disposable tool
10/12/2006	US20060225891 Apparatus for, and method of, landing items at a well location

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