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)
06/2010
06/24/2010CA2749549A1 Tubular connection with self-locking threading used in the oil industry
06/24/2010CA2747761A1 Cables for downhole use
06/23/2010EP2199532A2 Drilling tool for stone
06/23/2010EP2198114A2 A downhole device
06/23/2010EP2198113A2 A downhole assembly
06/23/2010EP2198112A2 Systems and methods for reducing backward whirling while drilling
06/23/2010EP2198110A1 Bit assembly
06/23/2010CN201513140U Non-rotating low-torque drill rod protector
06/23/2010CN201513139U Screw drill machine high abrasion-proof universal joint
06/23/2010CN201513138U Snap ring type drill pipe sub
06/23/2010CN201513137U Breakout-preventing connector for sucker rod
06/23/2010CN201513136U Double-shoulder drill pipe joint
06/23/2010CN201513135U Rotary seal connector of drilling machine
06/23/2010CN201513134U Long spiral telescopic drill stem
06/23/2010CN201513133U Back-off prevention self-locking sucker rod
06/23/2010CN201513132U Novel continuous oil pipe
06/23/2010CN201513131U Tubular column for drilling plugs in well repairing
06/23/2010CN201513130U Key transmission telescopic multilayer drill rod internally provided with multiple continuous channels
06/23/2010CN201513129U Drill stem limiting mechanism of rotary drilling rig
06/23/2010CN201513128U Water leak-proof hollow drill rod
06/23/2010CN201513117U Rotary drilling rig used for cast-in-site cylindrical pile
06/23/2010CN101755104A Orientation sensor for downhole tool
06/23/2010CN101749252A Centralizing underground annulus pumping screw turbopump
06/23/2010CN101747592A Formulation of small glass fiber reinforced plastic sleeve and underground structure
06/23/2010CN101747591A Prescription and production process of water source well glass steel sleeve
06/22/2010US7740078 Method and device to clamp control lines to tubulars
06/22/2010US7740077 Downhole oilfield tubulars
06/22/2010US7740076 Protective sleeve for threaded connections for expandable liner hanger
06/22/2010US7740073 Wellhead seal unit
06/22/2010CA2500740C Apparatus for connecting sucker rods
06/22/2010CA2453353C Steerable rotary drill bit assembly with pilot bit
06/17/2010WO2010068833A2 Electrical submersible pump system connection adapter
06/17/2010WO2010068484A2 Downhole decelerating device, system and method
06/17/2010WO2010067156A2 Apparatus and method for mounting acoustic sensors closer to a borehole wall
06/17/2010WO2010066365A1 Sealed tubular connection used in the oil industry, and method for producing said connection
06/17/2010WO2010065993A1 Removal/fitting of subsea sealing plug(s)
06/17/2010WO2010048072A3 Method for installing wellbore string devices
06/17/2010WO2010025313A4 Drilling out casing bits with other casing bits
06/17/2010US20100147530 Bellows type adjustable casing
06/17/2010US20100147528 Riser Centralizer System (RCS)
06/17/2010CA2746095A1 Electrical submersible pump system connection adapter
06/17/2010CA2746027A1 Sealed tubular connection used in the oil industry, and method for producing said connection
06/16/2010EP2196618A2 Bellows type adjustable oilfield tubular assembly
06/16/2010CN201507567U Spline-type universal shaft
06/16/2010CN201507250U Threaded connection drill stem
06/16/2010CN201507249U Overlarge drill collar
06/16/2010CN201507248U Wellhead hanger centralizing tool
06/16/2010CN201507247U Sucker rod centralizer
06/16/2010CN201507244U Drill-bit of mixing pile machine
06/16/2010CN1975095B Wired pipe joint with current circuit inductive coupler
06/16/2010CN1575377B Method and system for forming holes in stratum, holes formed by the method and system, and compound generated thereby
06/16/2010CN101737027A High energy gas fracturing device of oil reservoirs of horizontal well
06/16/2010CN101737015A Structure of wear-resistant belt of drill joint made of diamond composite material
06/16/2010CN101737005A Drilling tool for sleeving anchor cable and construction method for sleeving anchor cable with simultaneous casing
06/16/2010CN101735572A Formula of eccentric wear-resistant oil pipe and production process
06/16/2010CN101735571A Formula for layered water injection pipe and production technology thereof
06/16/2010CN101086203B Method for producing continuous casting round billet for petroleum bush using convertor process
06/12/2010CA2688209A1 Multilateral expandable seal
06/10/2010WO2010064920A1 Method to stop wellbore fluid leakage from a spoolable wellbore intervention rod
06/10/2010WO2010063112A1 Well tool with connectors and adapted for use with power tongs
06/10/2010WO2010035248A4 Guide frame for riser tower
06/10/2010WO2010008956A3 Pressure orienting swivel
06/10/2010WO2009088827A3 Progressive cavity apparatus with transducer and methods of forming and use
06/10/2010WO2009051490A8 Casing device
06/10/2010US20100139925 Connector
06/10/2010CA2778244A1 Well tool
06/10/2010CA2745196A1 Method to stop wellbore fluid leakage from a spoolable wellbore intervention rod
06/09/2010EP2193299A2 Method of installing a tubular undersea pipeline
06/09/2010CN201502340U Self-correction synclastic curvature coated type oil well eccentric wear prevention device
06/09/2010CN201502339U Split composite liner-typed torque-reduction wear-prevention tool
06/09/2010CN201502338U Centering bracket for geological drilling sleeve
06/09/2010CN201502337U Casing tie-back tool
06/09/2010CN201502336U Special thread oil casing connector
06/09/2010CN201502335U Oil sleeve joint
06/09/2010CN201502334U Tensile and bending resistant double sealed oil bushing connector
06/09/2010CN201502333U Stretching resistance positive and negative rotation anti-loosing connector
06/09/2010CN201502332U Universal bushing quick-release protector
06/09/2010CN201502331U Fixing device for pumping rod and sleeve
06/09/2010CN201502330U Split-type bending angle universal shaft housing
06/09/2010CN1995690B Fiber composite reinforced coupler
06/09/2010CN1575373B Method for in situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well
06/09/2010CN101730784A Disconnectable riser-mooring system
06/09/2010CN101725325A Anti-dropping hollow sucker rod connection structure
06/08/2010US7730971 Tension/collar/reamer assemblies and methods
06/08/2010US7730957 Well tool with line and installation method
06/08/2010CA2668911C Expandable underreamer/stabilizer
06/08/2010CA2533134C Method and device to clamp control lines to tubulars
06/03/2010WO2010061231A1 Disconnect device for downhole assembly
06/03/2010WO2010060134A1 Drill string
06/03/2010US20100132939 System and method for providing a downhole mechanical energy absorber
06/03/2010US20100132938 Conductor pipe string deflector and method of using same
06/03/2010CA2744942A1 Disconnect device for downhole assembly
06/02/2010EP2192260A2 Riser disconnect and support mechanism
06/02/2010EP2191102A2 Down-hole wireless communication system
06/02/2010EP2191097A1 Communication connections for wired drill pipe joints
06/02/2010CN201496680U Mine multifunctional pipe
06/02/2010CN201496057U Electrical system of long spiral drilling machine
06/02/2010CN201496051U Relay lifting device for viscous oil dilution well
06/02/2010CN201496022U High-pressure converter for machine pumping wellhead
06/02/2010CN201496005U Device for preventing eccentric wear of sucker rod
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