Patents
Patents for E21B 29 - Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground (5,744)
05/2009
05/07/2009US20090114389 Communication Tool for Accessing a Non Annular Hydraulic Chamber of a Subsurface Safety Valve
05/07/2009US20090114382 Shaped charge for acidizing operations
05/06/2009CN201232532Y Hydraulic combination window opening tool
05/06/2009CN100485158C Expansion pipe device for oilfield well completion
05/05/2009US7527108 Portable electrocrushing drill
05/05/2009US7527092 Method and apparatus for jet-fluid abrasive cutting
04/2009
04/30/2009WO2009055380A2 Apparatus and method for milling casing in jet drilling applications for hydrocarbon production
04/30/2009US20090107670 Downhole Seal Bore Repair Device
04/30/2009CA2701725A1 Apparatus and method for milling casing in jet drilling applications for hydrocarbon production
04/28/2009CA2350790C Well bore cutting and perforating devices and methods of manufacture
04/23/2009WO2008135747A3 Pipe cutting apparatus
04/23/2009WO2006086165A3 Flow valve and method
04/21/2009US7520331 Dry tree subsea well communications methods using variable tension large offset risers
04/21/2009US7520330 System and method for limiting vortex-induced vibrations on an offshore production riser
04/21/2009US7520321 Redundant systems for downhole permanent installations
04/16/2009WO2009021037A3 Rotating and reciprocating swivel apparatus and method
04/16/2009WO2007070305A4 Downhole hydraulic pipe cutter
04/16/2009US20090095470 Downhole abrading tools having excessive wear indicator
04/15/2009EP2048322A2 An assembly for cutting into a well tubular
04/15/2009CN101410587A Expandable tubular assembly
04/14/2009US7516795 Subsea petroleum production system method of installation and use of the same
04/14/2009US7516794 Pipe separator for the separation of fluids, particularly oil, gas and water
04/14/2009US7516790 Mono-diameter wellbore casing
04/14/2009CA2497617C Method and apparatus for locating and re-entering one or more horizontal wells using whipstocks
04/09/2009CA2701371A1 Cutting structures for earth-boring drill bits
04/08/2009CN201218068Y Milling type drifting device
04/07/2009US7513752 Beam pump dynamic load monitoring and methods
04/07/2009US7513311 Temporary well zone isolation
04/07/2009US7513310 Method and arrangement for performing drilling operations
04/07/2009US7513309 Apparatus for connecting underwater tubular members
04/07/2009US7513308 Tubing running equipment for offshore rig with surface blowout preventer
04/07/2009US7513305 Apparatus and methods for operating a tool in a wellbore
04/02/2009US20090084551 Reducing pipe expander
04/02/2009US20090084535 Apparatus string for use in a wellbore
03/2009
03/31/2009US7510000 Reducing viscosity of oil for production from a hydrocarbon containing formation
03/28/2009CA2639848A1 Variable diameter pipe expander
03/26/2009US20090078421 System and method for performing well treatments
03/26/2009US20090078420 Perforator charge with a case containing a reactive material
03/26/2009US20090078402 Tubular Cutting Device
03/25/2009EP1738057B1 Subsurface electrical heaters using nitride insulation
03/19/2009US20090071640 Device for cutting a vertical slot-like unloading opening
03/18/2009CN101389826A Apparatus and method for selective actuation of downhole tools
03/17/2009US7503391 Tieback connector
03/11/2009CN201206448Y Milling bit for lateral well
03/11/2009CN201206426Y Staged drill for drilling rubber plug
03/10/2009CA2504247C A method and apparatus for creating a cemented lateral junction system
03/05/2009WO2009029400A1 Combination motor casing and spear
03/05/2009WO2009028953A1 Method and device for removing the upper portion of a well
03/05/2009WO2008154486A3 Multi-deployable subsea stack system
03/04/2009CN201202429Y Expansion tube hanging seal device for open hole section
03/03/2009US7497260 Junk removal tool
02/2009
02/26/2009US20090050334 Conditioning Ferrous Alloys into Cracking Susceptible and Fragmentable Elements for Use in a Well
02/26/2009US20090050310 Combination Motor Casing and Spear
02/24/2009US7493969 Drill cuttings conveyance systems and methods
02/24/2009CA2376963C Method of creating a weld in a wellbore
02/19/2009WO2008131771A3 Cladding method and expansion tool
02/19/2009WO2007070305A3 Downhole hydraulic pipe cutter
02/18/2009EP2024601A1 A method and apparatus for patching a well by hydroforming a tubular metal patch, and a patch for this purpose
02/17/2009US7490672 System and method for processing drilling cuttings during offshore drilling
02/17/2009US7490671 Pipe separator with improved separation
02/17/2009US7490670 Subsea exploitation device
02/17/2009US7490665 Variable frequency temperature limited heaters
02/17/2009US7490663 Thread fatigue relief for tool joint
02/17/2009CA2534912C Pipe burster with spherical bursting member
02/12/2009WO2009021037A2 Rotating and reciprocating swivel apparatus and method
02/12/2009WO2009020730A1 Eductor jet bushing for downhole use
02/12/2009US20090038802 Packer
02/12/2009US20090038138 Protective compression and tension sleeves for threaded connections for radially expandable tubular members
02/11/2009EP2022933A2 Downhole valve assembly, actuation device for a downhole valve assembly and method of controlling fluid flow downhole
02/10/2009US7487837 Riser rotating control device
02/10/2009US7487836 Riserless modular subsea well intervention, method and apparatus
02/10/2009US7487835 Method of developing a re-entry into a parent wellbore from a lateral wellbore, and bottom hole assembly for milling
02/10/2009US7487834 Methods of using a laser to perforate composite structures of steel casing, cement and rocks
02/10/2009US7487833 Safety apparatus for perforating system
02/10/2009US7487832 Force transfer apparatus to assist release of loaded member
02/10/2009US7487828 Apparatus and method for powering electrical devices along a pipeline
02/10/2009CA2451873C Apparatus and method for orientating a downhole control tool
01/2009
01/29/2009US20090025470 Tracer method and apparatus
01/28/2009EP2018463A1 A whipstock
01/27/2009US7481274 Temperature limited heaters with relatively constant current
01/27/2009CA2551923C Method of drilling an enlarged sidetracked well bore
01/27/2009CA2479960C Method for installing an expandable coiled tubing patch
01/21/2009CN201184156Y Variable radial expanding head for expansion reinforcing
01/21/2009CN201184155Y Expansion block of variable radial expansion tool
01/15/2009WO2009007379A2 Method of lining a well or a pipe using an inflatable bladder
01/15/2009US20090014172 Apparatus and Methods for Drilling and Lining a Wellbore
01/14/2009CN100451294C Arranging mode of hard alloy blocks for sectional milling device and sectional milling device
01/13/2009US7475733 Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve
01/08/2009US20090008086 Centering Structure for Tubular Member and Method of Making Same
01/06/2009US7472763 Wear resistant tubular connection
01/06/2009CA2352746C Downhole apparatus and method for milling a window and at least one key-way in a well casing
01/01/2009US20090000792 Retrievable bridge plug
12/2008
12/30/2008US7469747 Method and apparatus for preventing spillage or loss of drill fluids
12/30/2008CA2543408C Method for providing a temporary barrier in a flow pathway
12/24/2008WO2008104005A3 Casing window milling assembly
12/24/2008WO2008058209A3 Offshore universal riser system
12/24/2008CN201170073Y Rapid protecting device of casing tube local damage
12/24/2008CN201170072Y Variable radial expansion tools for expansion sieve tube
12/24/2008CA2809210A1 Control line running system
12/24/2008CA2809152A1 Control line running system
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