| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 09/25/2013 | CN203213967U Special sucker rod anti-eccentric coupling for screw pump |
| 09/25/2013 | CN203213966U Gas drainage drill rod with reinforcing ribs |
| 09/25/2013 | CN203213965U Anticorrosion and antiabrasion pair of sucker rod |
| 09/25/2013 | CN103328764A Boron shaped charge |
| 09/25/2013 | CN103328756A Method, system and apparatus for deployment of umbilicals in subsea well operations |
| 09/25/2013 | CN103325307A Embedded mark of petroleum drilling tool |
| 09/25/2013 | CN103321670A Built-in drill stem temperature control automatic wind closing flame-retardant device |
| 09/25/2013 | CN103321594A Closed spiral wing anti-balling centralizer for well drilling |
| 09/25/2013 | CN103321593A Device and method for actively eliminating vortex-induced vibration of stand pipe |
| 09/25/2013 | CN103321592A Special type guard plate |
| 09/25/2013 | CN103321591A Plane-shoulder type variable-tooth-width wedge-type coupling structure and oil well pipe structure |
| 09/25/2013 | CN103321590A Non-planar sealing surface tooth-variable wide-wedge coupling structure and oil well pipe structure |
| 09/25/2013 | CN103321589A Waterproof end-expanding-prevention drill rod connection unit |
| 09/25/2013 | CN103321588A Sealing disengaging-connecting device |
| 09/25/2013 | CN103321587A Plane-shoulder planoconic sealing surface variable-tooth-width wedge-type coupling structure and oil well pipe structure |
| 09/25/2013 | CN103321586A Curved-surface ledge flat-cone-shaped sealing-surface tooth-change wide-wedge-shaped coupling structure and oil well pipe structure |
| 09/25/2013 | CN103321585A S-shaped shoulder variable tooth width wedge-shaped coupling structure and oil well pipe structure |
| 09/25/2013 | CN103321584A Mechanical and electrical connecting structure between drill collars of while-drilling instruments |
| 09/25/2013 | CN103321583A Tubular pile momentum balancing device |
| 09/25/2013 | CN103321582A Internal flush water-proof expansion-end-proof drill pipe |
| 09/25/2013 | CN103321568A Long-service-life high-performance screw drill |
| 09/25/2013 | CN103320697A Drill rod pipe body applied to ultra-deep well working condition and manufacturing method thereof |
| 09/25/2013 | CN102534166B Preparation method of J55-grade steel ERW (electric resistance welding) expansion pipe with high diameter expansion performance |
| 09/25/2013 | CN102322058B Construction process and equipment for downhole impacting high-pressure jet grouting pile |
| 09/25/2013 | CN102171409B Pipe section guide system with flexible member |
| 09/25/2013 | CN102155150B Crushing mechanism with gas inlet pipe |
| 09/25/2013 | CN102011576B Method for hierarchically diagnosing fault of rod-comprising oil pumping system based on indicator diagram |
| 09/24/2013 | US8540030 Riser lifecycle management system, program product, and related methods |
| 09/24/2013 | US8540028 Autonomous junk collecting sleeve for a riser |
| 09/24/2013 | US8540021 Release assembly for a downhole tool string and method for use thereof |
| 09/24/2013 | US8540015 Apparatus and method for treating a subterranean formation using diversion |
| 09/24/2013 | CA2737504C Drilling stabilizer |
| 09/24/2013 | CA2734622C Connector |
| 09/24/2013 | CA2700580C Gravel packing methods |
| 09/24/2013 | CA2401705C Wireless downhole measurement and control for optimizing gas lift well and field performance |
| 09/19/2013 | WO2013137991A1 Actuation lockout system |
| 09/19/2013 | WO2013135297A1 Centralizer for expandable casing |
| 09/19/2013 | WO2013134868A1 Multi-conduit coiled tubing assembly |
| 09/19/2013 | WO2013116826A3 Wellsite communication system and method |
| 09/19/2013 | US20130239480 Water intake riser assembly for an off-shore structure, and method of producing a liquefied hydrocarbon stream and method of producing a vaporous hydrocarbon stream |
| 09/19/2013 | DE102012005048A1 Förderverrohrung zur Verwendung bei einer Erdwärmesonde zur Gewinnung geothermischer Energie und Verfahren zum Einbau einer solchen Förderverrohrung Production tubing for use in a borehole heat exchanger for the recovery of geothermal energy, and method of installation of such a production tubing |
| 09/18/2013 | EP2638236A2 Riser assembly and method |
| 09/18/2013 | EP2638235A2 Riser support |
| 09/18/2013 | CN203201498U Soil compacting and discharging drilling rod, spiral drill and pile machine |
| 09/18/2013 | CN203201497U Throttling and well killing integrated circulating manifold |
| 09/18/2013 | CN203201496U Sleeve pipe fast-dismounting thread protector |
| 09/18/2013 | CN203201495U Automatic gravitational deviation adjuster for rod string |
| 09/18/2013 | CN203201494U Screw drill centralizer |
| 09/18/2013 | CN203201493U Sucker rod assembly structure resistant to stress |
| 09/18/2013 | CN203201492U Efficient counter-buckling anti-torque drilling rod connector structure for penetration |
| 09/18/2013 | CN203201491U Metal air-tight seal rotary bead type drill rod joint |
| 09/18/2013 | CN203201490U Improved rotary rolling rig power head drive sleeve |
| 09/18/2013 | CN203201489U Sucker rod assembly mechanism with reset function |
| 09/18/2013 | CN203201488U Anti-cracking sucker rod assembly structure |
| 09/18/2013 | CN203201487U Hydraulic security shedding tool |
| 09/18/2013 | CN203201486U Casing pipe device for mining area coal-bed gas well on ground |
| 09/18/2013 | CN203201485U Drill bit assembly of engineering driller |
| 09/18/2013 | CN203201484U Riser pipe, riser system and sub-section thereof |
| 09/18/2013 | CN103306629A Oil tube suspender centering device |
| 09/18/2013 | CN103306614A Open type spiral wing mud drum-preventing centralizer for well drilling |
| 09/18/2013 | CN103306613A Vortex-induced vibration inhibition device for marine riser of adjustable and rotatable separating disk |
| 09/18/2013 | CN103306612A Snake bone drill rod for drilling |
| 09/18/2013 | CN103306611A Special-shaped drill rod used for coal mining and processing technology of drill rod |
| 09/18/2013 | CN103306610A Water-saving and time-saving drill rod |
| 09/18/2013 | CN103306605A Double-pipe fast connecting and dust collecting device for drilling of air casting pipe and applications of double-pipe fast connecting and dust collecting device |
| 09/18/2013 | CN103305830A Special cobalt-based cermet alloy powder for laser cladding of surface of drill rod |
| 09/18/2013 | CN102359350B Centering device |
| 09/18/2013 | CN102305029B Insulating pup joint used for underground mine drilling and manufacture method thereof |
| 09/18/2013 | CN102162358B Soundwave-while-drilling well logging device |
| 09/17/2013 | US8534388 Dual pipe for increased fluid flow |
| 09/17/2013 | CA2691146C Control line running system |
| 09/17/2013 | CA2632634C Adjustable angle drive connection for a down hole drilling motor |
| 09/12/2013 | WO2013134265A1 Offshore system with subsea riser |
| 09/12/2013 | WO2013134254A1 Floating structure and riser systems for drilling and production |
| 09/12/2013 | WO2013133944A1 Alloys for hardbanding weld overlays |
| 09/12/2013 | WO2013133914A2 Composite centralizer with expandable elements |
| 09/12/2013 | WO2013133797A1 Locking safety joint for use in a subterranean well |
| 09/12/2013 | WO2013133796A1 Deactivation of packer with safety joint |
| 09/12/2013 | WO2013133795A1 Safety joint with non-rotational actuation |
| 09/12/2013 | WO2013133784A1 Exercising a well tool |
| 09/12/2013 | WO2013131907A1 Fluid-conveying hose and conveying pump |
| 09/12/2013 | WO2013033738A3 Method and device for drilling, in particular percussion drilling or rotary percussion drilling, holes in soil material or rock material, and connecting element for a drill pipe |
| 09/12/2013 | US20130234431 Marine Riser Assembly |
| 09/12/2013 | US20130233620 Stabilizer with Drilling Fluid Diverting Ports |
| 09/12/2013 | US20130233587 Polymer-bonded metallic elements used as strength members, and/or power or data carriers in oilfield cables |
| 09/12/2013 | US20130233573 Deactivation of packer with safety joint |
| 09/12/2013 | US20130233568 Composite Centralizer with Expandable Elements |
| 09/12/2013 | US20130233567 Locking safety joint for use in a subterranean well |
| 09/12/2013 | US20130233566 Safety joint with non-rotational actuation |
| 09/12/2013 | US20130233562 Blowout preventer assembly |
| 09/11/2013 | EP2636843A1 Well completion |
| 09/11/2013 | EP2635766A2 A drilling system and a device for assembling and disassembling pipe stands |
| 09/11/2013 | EP2635765A2 Parameter sensing and monitoring |
| 09/11/2013 | CN203188992U Multistage hydraulic jetting staged fracturing pipe column structure |
| 09/11/2013 | CN203188939U Hexagonal geological spiral drill stem device quick to connect and for coal mine tunnel drilling |
| 09/11/2013 | CN203188938U Lantern type rigid sleeve pipe hydraulic centering device |
| 09/11/2013 | CN203188937U Roller anti-fall device for resistance-reduction and torque-reduction double-acting stabilizer |
| 09/11/2013 | CN203188936U Bidirectional drilling tool stabilizer |
| 09/11/2013 | CN203188935U Casing centralizer of resistance-reduction spring |
| 09/11/2013 | CN203188934U Centralizer ridge structure of resistance-reduction and torque-reduction double-acting stabilizer |