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)
03/2014
03/25/2014US8678084 Reorienting annular debris barrier
03/25/2014US8678042 Composite spoolable tube
03/25/2014US8678041 Fiber reinforced spoolable pipe
03/25/2014CA2720969C Open-faced rod spinner
03/20/2014WO2014043505A1 Drills string components having multiple-thread joints
03/20/2014WO2014043126A2 Freestanding hybrid riser system including a bottom configuration with a flexible pipe joint and a diverless pipe connector
03/20/2014WO2014043050A1 Systems and methods for monitoring oil/gas separation processes
03/20/2014WO2014043033A1 Multi-piston hydrostatic setting tool with locking feature and pressure balanced pistons
03/20/2014WO2014043031A1 Multi-piston hydrostatic setting tool with locking feature outside actuation chambers for multiple pistons
03/20/2014WO2014043028A1 Multi-piston hydrostatic setting tool with locking feature and a single lock for multiple pistons
03/20/2014WO2014042644A1 Rotary steerable drilling system
03/20/2014WO2014040624A1 Flexible pipe arrangement and method for manufacture thereof
03/20/2014WO2014040618A1 Flexible pipe pressure relief
03/20/2014WO2013133890A3 Latching assembly for wellbore logging tools and method of use
03/20/2014WO2013103766A3 Wireless drill string disconnect
03/20/2014WO2013034919A3 Drill string tubular component
03/20/2014WO2013024354A3 Drilling fluid pump module coupled to specially configured riser segment and method for coupling the pump module to the riser
03/20/2014US20140076582 Tool string
03/20/2014US20140076576 Method and system for protecting a conduit in an annular space around a well casing
03/19/2014EP2707636A1 An unbonded flexible pipe and pipe system
03/19/2014CN203488168U Coal mine water exploration system
03/19/2014CN203488116U Alloy drilling rod with high strength and abrasion resistance
03/19/2014CN203488115U Long spiral drilling machine and drill bit
03/19/2014CN203488114U Water exploration drill rod for specific water-level detection
03/19/2014CN203488113U Centralizer resistance reducing device and orientated opposite penetrating device
03/19/2014CN203488112U Connection devices at two ends of pipe core
03/19/2014CN203488111U Connectors at two ends of pipe core
03/19/2014CN203488110U Layered sand blocking simultaneous-extraction tubular column
03/19/2014CN203488100U 360-degree oil and electricity dual-purpose hole puncher
03/19/2014CN103643903A Inside and outside centering guide for well repair in oil field
03/19/2014CN103643902A Downhole drilling assembly
03/19/2014CN103643901A Directional joint for well repairing and bushing removing in oil field
03/19/2014CN103643900A Direct-connection variable-thread-width petroleum tubing threads
03/19/2014CN103643899A Integrated drilling-cutting drill rod device
03/19/2014CN103643893A Sieve tube drilling process for outburst coal seam section in underground coal mine
03/19/2014CN103643082A Titanium alloy for high-strength petroleum casing pipe and method for manufacturing petroleum casing pipe by using titanium alloy
03/19/2014CN102690992B Method for producing casing pipe for thickened oil thermal production well
03/19/2014CN102337844B Directional drilling signal transmission drill pipe
03/19/2014CN102322228B Centralizer and drill rod and engineering machine applying same
03/19/2014CN101896684B Modular connector and method
03/18/2014US8672577 Inside wrap post coupler accommodating beam rivet
03/18/2014US8672042 Continuous fluid circulation valve for well drilling
03/18/2014US8672034 Well system with lateral main bore and strategically disposed lateral bores and method of forming
03/18/2014CA2721496C Methods and systems for orienting in a bore
03/18/2014CA2685561C Method and apparatus for connecting drilling riser strings and compositions thereof
03/13/2014WO2014039435A1 Method and apparatus for securing and using hyrdajetting tools
03/13/2014WO2014039263A1 Protected integral metal to metal seal
03/13/2014WO2014039209A1 Friction reduction assembly for a downhole tubular, and method of reducing friction
03/13/2014WO2014039078A1 Apparatus and method for lateral well drilling
03/13/2014WO2014037125A2 Modified tubular
03/13/2014WO2013114211A3 Stoppers for structures attached to hybrid riser towers
03/13/2014WO2013079928A3 An adaptive method for high data rate communication in wells
03/13/2014US20140073207 Restraint systems for hybrid decoupled risers
03/13/2014US20140069657 Freestanding Hybrid Riser System Including a Bottom Configuration with a Flexible Pipe Joint and a Diverless Pipe Connector
03/13/2014US20140069639 Friction reduction assembly for a downhole tubular, and method of reducing friction
03/12/2014EP2705215A2 Single upset landing string running system
03/12/2014EP2705214A2 Adjustment and restraint system for a subsea flex joint
03/12/2014EP2705209A1 Coupling for connecting tubular elements for bottom-hole assemblies
03/12/2014EP2704945A1 An offshore system
03/12/2014CN203476395U Warning device of coupling of tubular column
03/12/2014CN203476241U Polished rod lubricating and righting device of oil pumping unit
03/12/2014CN203476240U Oil drill stem female joint with root stress groove threads
03/12/2014CN203476239U High-anti-torsion drill pipe connector
03/12/2014CN203476238U Drill rod joint provided with male joint body and female joint body with threads of different conical degrees
03/12/2014CN203476237U Oil drill pipe connector with anti-galling shoulder
03/12/2014CN203476236U Oil drill pipe joint variable in pitch and thread
03/12/2014CN203476235U RTP pipe buckling connector for strengthening anti-stretching and anti-twisting capacity
03/12/2014CN203476234U Petroleum tool joint with air-tight seal double ledges
03/12/2014CN203476233U Drill rod joint with composite structure
03/12/2014CN203476232U Water-secluding pipe connector with spring bolt structure
03/12/2014CN203476231U Hasp type marine riser connector
03/12/2014CN203476230U Shouldered thread connection structure of oil tubes
03/12/2014CN203476229U Multi-start thread marine riser joint
03/12/2014CN203476228U Sucker rod coupling with oil flowing grooves
03/12/2014CN203476227U Locating connector
03/12/2014CN203476226U Spring-type locating joint
03/12/2014CN203476225U Pipe tool clamping oil cylinder
03/12/2014CN203476224U Macromolecule abrasion-resistant and anti-corrosion sucker rod
03/12/2014CN203476223U Gas drainage drill rod with circular arc edges
03/12/2014CN203476222U Drilling rod and hole drilling system
03/12/2014CN203476221U Hexagonal drill rod
03/12/2014CN203472211U Scale, paraffin and corrosion resistant and wearable special oil well pipe
03/12/2014CN203471251U Cold rolling device of drill pipe joint thread
03/12/2014CN103628830A Mechanical-hydraulic type variable-diameter stabilizer
03/12/2014CN103628829A Resin cyclone centralizer
03/12/2014CN103628828A Drill rod lifter of drill jumbo
03/12/2014CN103628827A Anti-bonding three-stage end surface metal sealing threaded connector for titanium alloy pipe
03/12/2014CN103628826A Drill rod forward and reverse rotation connecting device for underground coal mine drilling machine
03/12/2014CN103628825A Slurry resistivity measurement pressure bearing connector used for induction logging instrument
03/12/2014CN103628824A Drilling and cutting integrated drill pipe
03/12/2014CN103628823A Novel torsion oil pumping polish rod
03/12/2014CN103075112B Fibre reinforced composite anti-eccentric coiled rod as well as preparation device and preparation method thereof
03/12/2014CN102409229B N80Q grade straight seam ERW (Electric Resistance Welding) petroleum casing and manufacturing method thereof
03/12/2014CN102305033B Drilling bucket for rotary drilling rig
03/11/2014US8668027 Power tool
03/11/2014US8668007 Non-rotating casing centralizer
03/11/2014CA2711853C Electromagnetic telemetry assembly with protected antenna
03/06/2014WO2014036092A1 Method and system for recovering, and displacing fluid from, a pipe
03/06/2014WO2014035256A1 Hydraulic cylinder device
03/06/2014WO2014035255A1 Seal retainer device
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