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)
10/2013
10/30/2013CN203257336U Novel oil extraction sleeve
10/30/2013CN203257335U Guiding oil tube device
10/30/2013CN203257330U Horizontal section suspending side tracking tool
10/30/2013CN203257328U Drilling machine for exploiting shale gas
10/30/2013CN203256745U Tubular pile hole cleaning device
10/30/2013CN103380264A Surface close proximity wells
10/30/2013CN103375135A Integrated concentric drill pipe
10/30/2013CN102373374B High strength sulfur resisting casing pipe and its heat treatment manufacturing method
10/30/2013CN102322258B Drill-following acoustic logging method and device capable of reducing and insulating sound on drill collar
10/29/2013CA2814297A1 Universal joint for down hole drilling motor
10/29/2013CA2734977C Drilling out casing bits with other casing bits
10/24/2013WO2013155588A1 Spin wrench assembly
10/24/2013US20130277963 Threaded connection for drilling and working hydrocarbon wells
10/24/2013US20130277067 Coiled Tubing Triple-Sealed Penetrator and Method
10/24/2013US20130277061 Tower for exploiting fluid in an expanse of water and associated installation method
10/24/2013US20130277047 Downhole Delivery Of Chemicals With A Micro-Tubing System
10/23/2013EP2653766A2 Pressure compensation ring to be mounted between two propulsion tubes of an underground propulsion tubing system
10/23/2013EP2652378A1 Envelope element for a pipeline, mold for manufacture thereof, and method for covering a pipeline
10/23/2013EP2652238A1 Crossover joint for connecting eccentric flow paths to concentric flow paths
10/23/2013EP2652236A2 Method, system and apparatus for deployment of umbilicals in subsea well operations
10/23/2013CN203248104U Efficient spiral drill rod for coal mine
10/23/2013CN203248103U Corrosion prevention device for sucker rod
10/23/2013CN203248102U Bearing-type centering device
10/23/2013CN203248101U Drilling tool capable of preventing stall
10/23/2013CN203248100U Salvage device with adjustable angle
10/23/2013CN203248099U Tubing head four-way body
10/23/2013CN203248098U Drill rod
10/23/2013CN203248097U Hexagonal drill rod for coal mine underground tunnel geological exploration
10/23/2013CN203248096U Oil pipe and casing pipe with one thickened end and without coupling
10/23/2013CN203248095U Efficient and stable full-lock-catch drill stem
10/23/2013CN103370491A Travel joint having an infinite slot mechanism for space out operations in a wellbore
10/23/2013CN103362493A Rotatable adaptive compensator of coiled tubing test string
10/23/2013CN103362483A Horizontal well gravel-packed string and pressure control valves thereof
10/23/2013CN103362461A Long spiral drilling machine and drill bit thereof
10/23/2013CN103362460A Dislocated support-type centering guide for cased well logger
10/23/2013CN103362459A Arc-shaped conical surface sealed variable tooth wide wedge-type coupling structure and oil well pipe structure
10/23/2013CN103362458A Multi-plane sealing tooth-width-changing wedge type coupling structure and oil well pipe structure
10/23/2013CN103362457A Cambered surface and plane sealed variable tooth wide wedge-type coupling structure and oil well pipe structure
10/23/2013CN103362456A Leakage-proof high-seal tooth-width-changing wedge type coupling structure and oil well pipe structure
10/23/2013CN103362455A Bending-resistant high-sealing variable-tooth-width wedge type coupling structure and oil well pipe structure
10/23/2013CN103362454A Method for preventing oil well pipe coupling from thread gluing and improving corrosion resistance of oil well pipe coupling
10/23/2013CN103362453A Sealing variable-tooth-width wedge type coupling structure and oil well pipe structure
10/23/2013CN103362452A Quick disconnect connector for subsea tubular members
10/23/2013CN103362451A Non-coupling good-sealing bending-resistant tooth-width-variable wedge type threaded oil well pipe structure
10/23/2013CN103362450A Non-coupling multi-sealing tooth-width-variable wedge type threaded oil well pipe structure
10/23/2013CN103362449A Retraction type long stroke hydraulic power pressurizer
10/23/2013CN103362448A Combined device for float casing arrangement and check valve well cementation
10/23/2013CN103362121A Six-shaft cement mixing pile machine
10/23/2013CN102165136B Borehole casing centraliser
10/23/2013CN102146783B Mouse cage type V-shaped straight wire sieve tube
10/23/2013CN101506460B Articulated extraction pipe
10/22/2013US8562256 Floating system connected to an underwater line structure and methods of use
10/22/2013US8561729 Casing bit and casing reamer designs
10/22/2013US8561726 Vertical drilling system for controlling deviation
10/22/2013US8561725 Ultra-hard drill collar
10/22/2013US8561717 Articulating drill with integrated circuit board and method of operation
10/22/2013US8561714 Hand-held power tool
10/22/2013US8561708 ID centralizer
10/22/2013US8561707 Ultra-low friction coatings for drill stem assemblies
10/22/2013US8561692 Downhole safety joint
10/22/2013US8561688 Compact jar for dislodging tools in an oil or gas well
10/17/2013WO2013154535A1 Methods and apparatus for transmission of telemetry data
10/17/2013WO2013154527A1 Pressure activated contingency release system and method
10/17/2013WO2013092911A3 Casing and adapter for producing a mechanical connection between a top drive and a casing
10/17/2013WO2013050231A3 Damper unit and drill string system comprising such a damper unit
10/17/2013WO2012143673A3 Composite component deployment configurations
10/17/2013US20130269954 Rod Suitable for Being Inserted Into a Deviated Wellbore and a Method of Manufacturing the Same
10/16/2013EP2650465A1 Landing string compensator
10/16/2013EP2649266A1 Integral centralizer
10/16/2013EP2649265A2 Resonance enhanced rotary drilling module
10/16/2013CN203239247U Horizontal well operation sand-washing centralizing and guiding device
10/16/2013CN203239246U Hydraulic control arch centering device for continuous tube
10/16/2013CN203239245U Simple arch centering device for continuous tube
10/16/2013CN203239244U Air-tight seal oil pipe screwed joint
10/16/2013CN203239243U Sealing copper bush for anticorrosion oil tube
10/16/2013CN203239242U Pitching-type remote downhole bypass joint
10/16/2013CN203239241U Tubular column steering controller and tubular column steering control system
10/16/2013CN203239240U Variable-permeability horizontal well segregated completion string
10/16/2013CN203239239U Large-drift-diameter flat-groove circular drill rod
10/16/2013CN203238284U Drill stem suitable for blast furnace tapping machine and mine rock drilling
10/16/2013CN103352688A Drilling tool bypass process unit
10/16/2013CN103352663A Drilling centralizer capable of removing rocks and debris beds at bottom of well
10/16/2013CN103352662A Threaded coupling for pipe
10/16/2013CN103352661A Cambered surface circular bead type varied tooth-width wedge type coupling structure and oil well pipe structure
10/16/2013CN103352176A Air-cooling type 80H thermal production well casing based on strain design and production process thereof
10/16/2013CN102251753B Continuous oil pipe and fracturing pipe column hanging and uncoupling device
10/16/2013CN102168536B Underwater double-unlocking connector
10/16/2013CN101649729B Oil pipe connector and heat washing and paraffin removing system
10/15/2013US8556542 Cuttable drilling tool, and a cuttable self drilling rock bolt
10/15/2013US8556004 Bottom preventer for use in a drilling system
10/15/2013US8555982 Method for setting up a hybrid tower in an expanse of water, hybrid tower associated installation for exploiting fluids
10/15/2013US8555981 Riser weak link
10/15/2013US8555964 Centraliser
10/15/2013US8555962 Downhole tool unit
10/15/2013CA2722544C Tubular handling apparatus
10/10/2013WO2013152219A1 Rotating and reciprocating swivel apparatus and method
10/10/2013WO2013151541A1 Casing window assembly
10/10/2013WO2013151527A1 Method and apparatus for pressure-actuated tool connection and disconnection
10/10/2013WO2013151477A1 Apparatus for drilling and lining a borehole
10/10/2013WO2012146892A3 Improved limit collar
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