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
06/02/2010CN201496004U Joint for composite oil pipes or casings
06/02/2010CN201496003U Thread connector of special oil sleeve
06/02/2010CN201496002U Sleeve and magnetic source coupling for magnetic positioning
06/02/2010CN201496001U Joint for blocking detritus
06/02/2010CN201496000U Structure of hermetically sealed joint of oil pipe or sleeve
06/02/2010CN201495999U Loss and clamp prevention connecting drill rod
06/02/2010CN201495998U N80/P110/L80 steel grade high-frequency straight welded oil string
06/02/2010CN201495997U Air drilling double-wall drill rod
06/02/2010CN201495996U Quick assembling flange sulfer resistant flow out pipe
06/02/2010CN201495995U Hollow sucker rod
06/02/2010CN201495994U Novel threaded oil casing
06/02/2010CN201495993U Boring rod filter with protective cover
06/02/2010CN101718178A Method for continuously washing coal ash under coal bed methane well in bride type without causing pollution
06/02/2010CN101718176A Coupling thread-off stopper
06/02/2010CN101718175A Universal joint device for ocean deepwater drilling
06/02/2010CN101173606B Controllable disjoint sandblaster
06/02/2010CN101054888B Flexible composite high pressure vertical tube
06/01/2010US7726529 Bicycle carrier
06/01/2010US7726396 Field joint for a downhole tool
06/01/2010CA2560461C Modular design for downhole ecd-management devices and related methods
06/01/2010CA2413124C Drive system
05/2010
05/27/2010WO2010059755A2 Method and apparatus for retrieving and installing a drill lock assembly for casing drilling
05/27/2010WO2010058226A2 Centralising tool and method of forming
05/27/2010WO2010028809A3 Threaded connection
05/27/2010US20100129159 Device and method for suppressing vortex-induced vibrations
05/27/2010US20100126776 Subsea Drilling With Casing
05/27/2010US20100126732 Downhole decelerating device, system and method
05/27/2010US20100126727 In situ recovery from a hydrocarbon containing formation
05/27/2010CA2742655A1 Method and apparatus for retrieving and installing a drill lock assembly for casing drilling
05/26/2010EP2189617A1 Digging tool, digging bit, and device
05/26/2010EP2188487A2 Downhole wet-mate connector debris exclusion system
05/26/2010EP2188484A1 System and method for controlling a drilling system for drilling a borehole in an earth formation
05/26/2010EP2188483A1 System and method for directionally drilling a borehole with a rotary drilling system
05/26/2010CN201490510U Drill string crossover coupling used for electricity and signal transmission
05/26/2010CN201486578U Roof bolter
05/26/2010CN201486542U Detachable layered fracturing technology pipe string
05/26/2010CN201486538U Sand prevention pipe string used for open-hole well completion of side-drilled multilateral well and plug-in type acid cleaning filling inner pipe string thereof
05/26/2010CN201486523U High-pressure water return preventing safety control device in borehole rod below high-pressure water head
05/26/2010CN201486520U Position straightener for oil well processes
05/26/2010CN201486499U Hydraulic jam releasing device for drilling tool
05/26/2010CN201486483U Retaining mechanism for drill rod
05/26/2010CN201486482U Spherical rolling centralizer
05/26/2010CN201486481U PDC drill bit stick-slip vibration absorber
05/26/2010CN201486480U Drill rod for oil field
05/26/2010CN201486479U Oil well pipe end surface structure adopting friction welding connection
05/26/2010CN201486478U Kelly rod used for electricity and signal transmission
05/26/2010CN201486477U Shell type drill shank
05/26/2010CN201486476U Finished product caliber structure for rolling pumping rod steel
05/26/2010CN201486475U Combined pipe column with functions of fracturing pipe column and oil production pipe column
05/26/2010CN1711405B Downhole hydraulic control line connector
05/26/2010CN101713287A Magnetic short section used for measuring distance between adjacent wells by electromagnetic detection while drilling
05/26/2010CN101713286A Electromagnetic system for detecting distance between adjacent wells while drilling
05/26/2010CN101713284A Over-long threaded heat pipe of sucker rod
05/26/2010CN101713283A A sieve vessel
05/26/2010CN101713279A Deviation prevention and fast drilling technology of eccentric drilling tool assembly
05/25/2010US7721800 Flow control mechanism for a downhole tool
05/25/2010US7721611 Composite riser with integrity monitoring apparatus and method
05/20/2010WO2010056373A1 Ultra-hard drilling stabilizer
05/20/2010WO2010056362A1 System for preventing slippage and rotation of components along a tubular shaft
05/20/2010WO2010055335A1 Improvements in hybrid riser towers and fabrication thereof
05/20/2010WO2010055334A1 Methods and associated apparatus of constructing and installing rigid riser structures
05/20/2010WO2010055324A1 Armour reinforcement
05/20/2010WO2009138609A3 Bed-to-surface connector installation of a rigid tube with a flexible duct having positive flotation
05/20/2010WO2009136229A3 Technique and apparatus to deploy a cement plug in a well
05/20/2010US20100122851 Ultra-hard drilling stabilizer
05/20/2010US20100122849 System and method for preventing slippage and rotation of component along a tubular shaft
05/20/2010CA2744047A1 Subsea drilling with casing
05/19/2010EP2185785A1 Apparatus for and method of deploying a centralizer installed on an expandable casing string
05/19/2010CN201475592U Nano composite-coating anti-corrosion oil pipe
05/19/2010CN201475187U Sealed universal shaft
05/19/2010CN201474935U Anti-block oil-well pump
05/19/2010CN201474673U Oil-producing pipe column for sectional water control of horizontal well
05/19/2010CN201474662U Underground injection pipe
05/19/2010CN201474632U Drill collar for electric power and signal transmission
05/19/2010CN201474631U Large-diameter guide shoe with variable guide port
05/19/2010CN201474630U Wide surface support elastic centralizer
05/19/2010CN201474629U Drilling tool clamping device
05/19/2010CN201474628U Drill stem righting mechanism
05/19/2010CN201474627U Bearing type rolling wheel centralizer
05/19/2010CN201474626U Reverse buckle double joint
05/19/2010CN201474625U Ultrahigh anti-torsion metal air-tight seal drill pipe joint
05/19/2010CN201474624U Drill rod joint with double steps
05/19/2010CN201474623U Multi-edge oil-pumping rod connecting hoop and special tool thereof
05/19/2010CN201474622U Open type sand prevention pipe column
05/19/2010CN201474621U Clockwise and counter clockwise rotating and self-connecting drill rod specially used for ore drilling
05/19/2010CN201474610U Injection rock excitation device of rotary drilling rig
05/19/2010CN201474601U Drilling tool for eliminating negative soil squeezing effect of piles
05/19/2010CN101711321A Method for improving fatigue resistance of a threaded joint
05/19/2010CN101711303A Threaded element of a component with opposed threading portions and corresponding tubular threaded connection
05/19/2010CN101709626A Drilling and coring delivery capacity adjustment joint
05/19/2010CN101709620A Long screw drill and power head and drill rod thereof
05/19/2010CN101166944B Drill rod
05/19/2010CN101139915B Casing milling salvaging adaptor for oil well
05/19/2010CN101050694B Friction reducing and shock reducing automatic rotary device for oil well pole
05/19/2010CN101029559B Long-spiral replaceable and extruded borehole construction
05/18/2010CA2558447C Multiple distributed pressure measurements
05/14/2010WO2010053447A1 Drill riser buoyancy modules
05/14/2010WO2010052438A1 Facility for using fluid in a stretch of water, and associated assembly method
05/14/2010WO2010052423A2 Method for installing an operating rig for a fluid in a body of water with a traction unit
05/14/2010WO2010052422A2 Method for assembling an operating rig for a fluid in a body of water and associated operating rig
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