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 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings
Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800)
10/2005
10/25/2005US6958704 Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters
10/25/2005US6958703 Drill string enabling information to be transmitted
10/25/2005US6957708 Electrical imaging in conductive and non-conductive mud
10/25/2005US6957704 Limit clamp for use with casing attachments
10/25/2005US6957701 Method and apparatus for stimulation of multiple formation intervals
10/25/2005CA2272044C Drillpipe structures to accommodate downhole testing
10/20/2005WO2005098300A1 Threaded joint for steel pipe and process for producing the same
10/20/2005WO2005098196A1 Clamping apparatus, drill string component and rock drilling rig
10/20/2005WO2005098195A1 Equipment and procedure of coupling socket pipe sections for trenchless laying
10/20/2005US20050232703 Flowline insulation system
10/20/2005US20050232548 Fiber optic wet connector acceleration protection and tolerance compliance
10/20/2005US20050230154 Downhole drill string having a collapsible subassembly
10/20/2005US20050230149 On-Bit, Analog Multiplexer for Transmission of Multi-Channel Drilling Information
10/20/2005US20050230115 Tubing or drill pipe conveyed downhole tool system with releasable wireline cable head
10/20/2005US20050230110 Apparatus identification systems and methods
10/20/2005US20050230109 Apparatus identification systems and methods
10/20/2005US20050230105 Well completion with merged influx of well fluids
10/20/2005US20050230098 Energized slip ring assembly
10/20/2005US20050229805 Connector for perforating gun tandem
10/20/2005CA2556430A1 Clamping apparatus, drill string component and rock drilling rig
10/19/2005EP1586737A1 Completion apparatus and methods for use in hydrocarbon wells
10/19/2005EP1204807B1 Device and method for maintaining and guiding a riser, and method for transferring a riser onto a floating support
10/19/2005CN2734978Y Pretension hydraulic tubing anchor
10/19/2005CN2734976Y Polished rod lubricator for pumping well
10/19/2005CN2734975Y Sucker rod operation protector
10/19/2005CN2734974Y High torsion resistant drill pipe sub
10/19/2005CN2734840Y Glass fiber reinforced plastic casing tube
10/19/2005CN1685129A Drill pipe having an internally coated electrical pathway
10/19/2005CN1683747A Screw joint for steel pipe
10/19/2005CN1683746A Screw joint for steel pipe
10/19/2005CN1683745A Screw joint for steel pipe
10/19/2005CN1683744A Threaded joint for steel pipe
10/18/2005CA2221301C Adjustable stabilizer for directional drilling
10/18/2005CA2156987C Diverter and method for running a diverter
10/13/2005WO2005095840A1 Double shoulder tool joint
10/13/2005WO2005095754A1 Telescoping drilling sub
10/13/2005WO2005095753A1 Articulated drillstring entry apparatus and method
10/13/2005WO2005095752A1 Method and device for drilling holes in the ground or in rock
10/13/2005WO2005095751A1 Modular design for downhole ecd-management devices and related methods
10/13/2005WO2005095198A1 A connector for releasable connection between an anchorage in the form of a female part arranged on a floating means and a male part formed at the end of a retrievable umbilical
10/13/2005WO2005094508A2 Deflection swivel and method
10/13/2005WO2005021921B1 A method of radially expanding and plastically deforming tubular members
10/13/2005US20050225083 Pipe system and method for its manufacture
10/13/2005US20050224259 Coupler and roof drill bit assembly using such coupler
10/13/2005US20050224228 Method and apparatus for isolating and testing zones during reverse circulation drilling
10/13/2005US20050224227 Self-contained centralizer system
10/13/2005US20050224226 Force Transfer Apparatus to Assist Release of Loaded Member
10/13/2005US20050224123 Integral centraliser
10/13/2005US20050223535 Method and apparatus for forming a mono-diameter wellbore casing
10/13/2005CA2560829A1 Method and device for drilling holes in the ground or in rock
10/12/2005EP1583886A2 Isolated electrical connection in a drill string
10/12/2005EP1350005B1 Hydraulic running tool
10/12/2005CN2732981Y Thread protector for run casing
10/12/2005CN2732980Y Sawtooth casing threaded connection structure
10/12/2005CN2732979Y Anti-friction sucker rod coupling with bidirectional protection
10/12/2005CN1222682C Method of deploying electrically driven fluid transducer system in well
10/12/2005CN1222677C Method for steering drilling head and rotation steerable drilling system
10/11/2005US6953141 Joining of tubulars through the use of explosives
10/11/2005CA2257523C Centralizer
10/11/2005CA2246686C System for anchoring ships
10/11/2005CA2246685C System for loading ships at sea
10/11/2005CA2240520C Apparatus for setting a liner in a well casing
10/06/2005WO2005093204A1 Downhole apparatus for mobilising drill cuttings
10/06/2005WO2005093203A1 Automatic cleaning device
10/06/2005WO2005093202A1 Improved casing comprising stress-absorbing materials and associated methods of use
10/06/2005WO2005091911A2 Multiple distributed pressure measurements
10/06/2005US20050217901 Drill rod and method of manufacture thereof
10/06/2005US20050217899 Cutting structure based hydraulics
10/06/2005US20050217898 Vibration-dampening drill collar
10/06/2005US20050217867 Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore
10/06/2005US20050217861 Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore
10/06/2005US20050217858 Apparatus and method of drilling with casing
10/06/2005US20050217850 Sealing Mechanism for a Subterranean Well
10/06/2005US20050217846 Device for a long well tool
10/06/2005CA2558471A1 Downhole apparatus for mobilising drill cuttings
10/05/2005EP1581721A1 Communication system for down hole use
10/05/2005EP1581719A1 Actuation devices, tools and apparatus
10/05/2005CN2731087Y Unloading buffer for oil pump
10/05/2005CN2731075Y Rotation-proof oil pipe anchor
10/05/2005CN2731073Y Sand flushing tool for small diameter pipe of borehole
10/05/2005CN2731069Y Multi-functional casing shoe
10/05/2005CN2731068Y Drop-proof tool for electric pump set
10/05/2005CN2731067Y Ring shape dropping-proof centraliser
10/05/2005CN2731066Y Centraliser for steering wheel
10/05/2005CN2731065Y Air sealed threaded sleeve joint
10/05/2005CN1678861A Tubular threaded joint which is impervious to the external environment
10/05/2005CN1676864A Drill stem oil pipe or sucker rod marking method
10/05/2005CN1676863A Oil well pipe or sucker rod feature marking method
10/05/2005CA2503476A1 Sealing mechanism for a subterranean well
10/04/2005US6952170 Hollow drilling rod for transmitting information
10/04/2005CA2314575C Anti-torque tool
10/04/2005CA2258164C Drill tube for forming drill strings
10/04/2005CA2190798C Shaft alignment
10/01/2005CA2502496A1 Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore
09/2005
09/29/2005WO2005091019A1 Multiple distributed force measurements
09/29/2005WO2005090743A1 System for sealing an annular space in a wellbore
09/29/2005WO2004070158A3 Drilling assembly and method
09/29/2005US20050211473 System and method for directional drilling utilizing clutch assembly
09/29/2005US20050211470 Bottom hole assembly
09/29/2005US20050211445 Casing comprising stress-absorbing materials and associated methods of use
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