| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 08/12/2010 | US20100200248 Method of radially expanding a tubular element in a wellbore provided with a control line |
| 08/12/2010 | US20100200247 System and Method for Controlling Fluid Injection in a Well |
| 08/12/2010 | US20100200212 Field joint for a downhole tool |
| 08/12/2010 | CA2751446A1 Trigger joint |
| 08/11/2010 | EP2215324A2 Improved centraliser |
| 08/11/2010 | CN201547428U Three-dimensional seal tensile oil bushing connector |
| 08/11/2010 | CN201546690U Thread heat pipe of overlong oil-pumping rod |
| 08/11/2010 | CN201546639U Anti-scour special drill rod |
| 08/11/2010 | CN201546638U Novel drill collar used for oil field drilling |
| 08/11/2010 | CN201546637U Ferromagnetic paraffin and abrasion resistant sucker rod |
| 08/11/2010 | CN201546636U Novel centralizer of sucker rod |
| 08/11/2010 | CN201546635U Drill rod joint for high-pressure swing-spouting grouting machinery |
| 08/11/2010 | CN201546634U Kelly bar with wear layer |
| 08/11/2010 | CN201546633U Sucker rod with three centralizing blocks |
| 08/11/2010 | CN201546615U Telescopic drilling tool of mixing pile machine |
| 08/11/2010 | CN201546613U Long spiral drilling machine |
| 08/11/2010 | CN1786542B Improved pipe connection |
| 08/11/2010 | CN101802344A Connections for expandable tubulars |
| 08/11/2010 | CN101798907A Turning ring |
| 08/11/2010 | CN101798903A Large-aperture oil drilling impacter |
| 08/11/2010 | CN101438089B Tubular threaded joint |
| 08/10/2010 | CA2549113C Modular connector and method |
| 08/10/2010 | CA2532793C Top drive swivel apparatus and method |
| 08/10/2010 | CA2471789C Method and apparatus for backing off a tubular member from a wellbore |
| 08/06/2010 | CA2692209A1 Latch position indicator system and method |
| 08/05/2010 | WO2010086673A1 A riser and a method for identifying a riser |
| 08/05/2010 | WO2010086671A1 A method for handling a component in the construction, maintenance and repair of wells |
| 08/05/2010 | WO2010086658A2 Electric submersible pump, tubing and method for borehole production |
| 08/05/2010 | WO2010086576A1 A drill bit assembly |
| 08/05/2010 | WO2010068484A3 Downhole decelerating device, system and method |
| 08/05/2010 | WO2006003477A8 Intervention rod |
| 08/05/2010 | CA2751152A1 Electric submersible pump, tubing and method for borehole production |
| 08/05/2010 | CA2751079A1 A method for handling a component in the construction, maintenance and repair of wells |
| 08/04/2010 | EP2212512A1 Electrical contact connections for wellbore tools |
| 08/04/2010 | EP2212511A1 Production tubing member with auxiliary conduit |
| 08/04/2010 | EP2212510A1 Threaded connection comprising at least one threaded element with an end lip for a metal tube |
| 08/04/2010 | EP2212509A2 Drill-string shock absorbers |
| 08/04/2010 | CN201539223U Oil pipe coupling jar |
| 08/04/2010 | CN201539218U Strengthening single acting device for horizontal core drill tool |
| 08/04/2010 | CN201539217U Sucker rod rotary wear-resistant relief device |
| 08/04/2010 | CN201539216U Cardan joint device used for offshore deep drilling |
| 08/04/2010 | CN201539215U CO2 displacement concentric double-tube injection technique tubing string |
| 08/04/2010 | CN201539214U Overhauling sleeve-changing pipe column |
| 08/04/2010 | CN101796261A porous tubular structures |
| 08/04/2010 | CN101793157A Method for supporting filling body |
| 08/04/2010 | CN101793128A Blowout preventing tubing anchor |
| 08/04/2010 | CN101793127A Anti-tripping reverse buckling device |
| 08/03/2010 | US7769260 Intervention rod |
| 08/03/2010 | CA2473323C Two string drilling system |
| 08/03/2010 | CA2395825C Elongated element and steel for percussive rock drilling |
| 07/29/2010 | WO2010085302A2 Vortex-induced vibration (viv) suppression of riser arrays |
| 07/29/2010 | WO2010084353A2 Apparatus and method |
| 07/29/2010 | WO2010023476A3 Composite tubular product |
| 07/29/2010 | US20100186955 Method of well cementing |
| 07/29/2010 | US20100186944 Accessible Downhole Power Assembly |
| 07/29/2010 | DE102004033706B4 Vorrichtung zum Niederbringen von Gründungsbohrungen Apparatus for the sinking of foundation drilling |
| 07/28/2010 | CN201535151U 离子碰撞防蜡防垢降粘处理器 Ion collisions viscosity paraffin scale processors |
| 07/28/2010 | CN201535140U 一种机锁式钻杆及包括该钻杆的工程机械 A mechanism locks the drill pipe and drill pipe, including construction machinery |
| 07/28/2010 | CN101787858A Underground drill stem vibration damping and pressurizing device |
| 07/27/2010 | CA2341996C Wiper for tubing stripper |
| 07/22/2010 | WO2010082051A2 Tubing shoe |
| 07/22/2010 | WO2010040045A3 Identification of casing collars while drilling and post drilling and using lwd and wireline |
| 07/22/2010 | US20100183376 System, Method and Apparatus for Sleeved Tensioner Rod with Annular Adhesive Retention |
| 07/22/2010 | US20100181763 Wedge thread with torque shoulder |
| 07/22/2010 | US20100181112 Drilling assemblies including one of a counter rotating drill bit and a counter rotating reamer, methods of drilling, and methods of forming drilling assemblies |
| 07/22/2010 | US20100181078 Mobile Coiled Tubing Straightening Tool |
| 07/22/2010 | US20100181074 System for and Method of Restraining a Subsurface Exploration and Production System |
| 07/22/2010 | US20100181064 Multi-Purpose Well Servicing Apparatus |
| 07/22/2010 | CA2748938A1 Tubing shoe |
| 07/21/2010 | CN201531260U Well shaft double-hollow sucker rod closed-cycle heating device |
| 07/21/2010 | CN201531234U Anchor of side-passing cable oil pipe |
| 07/21/2010 | CN201531224U Screw drilling tool angle adjusting assembly |
| 07/21/2010 | CN201531223U Edge belt structure for drilling tool centralizing device |
| 07/21/2010 | CN201531222U Edge band structure of drilling tool centralizer |
| 07/21/2010 | CN201531221U Non-standard buttress threaded sleeve joint of 200.03mm |
| 07/21/2010 | CN201531220U Thread-off preventing device of sucker rod |
| 07/21/2010 | CN201531219U Non-standard 187.33mm NC53 drilling tool nipple |
| 07/21/2010 | CN201531218U Ultra-high-strength corrosion-resisting oil-pumping polished rod |
| 07/21/2010 | CN201531217U Heat transfer oil electromagnetic heating sucker rod |
| 07/21/2010 | CN201531020U Blade drill pipe steel pile special for a surface solar power station |
| 07/21/2010 | CA2690390A1 Wired pipe signal transmission testing apparatus and method |
| 07/20/2010 | US7758087 Coupling apparatus |
| 07/20/2010 | US7757775 Mitigation of localized stress in tubulars |
| 07/20/2010 | US7757771 Wellhead seal unit |
| 07/20/2010 | US7757552 Downhole tool sensor system and method |
| 07/20/2010 | CA2550801C Drilling equipment |
| 07/20/2010 | CA2475006C Method and arrangement by a workover riser connection |
| 07/15/2010 | WO2010079283A1 Tubular drill string component and corresponding drill string |
| 07/15/2010 | WO2010079099A2 Auxiliary subsurface compensator |
| 07/15/2010 | WO2010059755A3 Method and apparatus for retrieving and installing a drill lock assembly for casing drilling |
| 07/15/2010 | WO2010039811A3 Pipe section guide system with flexible member |
| 07/15/2010 | US20100178819 Loading system |
| 07/15/2010 | US20100175890 Split-coil, redundant annular coupler for wired downhole telemetry |
| 07/15/2010 | CA2748575A1 Tubular drill string component and corresponding drill string |
| 07/14/2010 | EP2206877A2 Downhole cable gripping/shearing device and method |
| 07/14/2010 | EP2206876A1 Drilling head for drilling machine |
| 07/14/2010 | EP2205816A2 Installing an expandable tubular in a subsea wellbore |
| 07/14/2010 | EP2205815A1 A method and a device for jointing tubes |
| 07/14/2010 | EP2205814A2 Connecting assembly |
| 07/14/2010 | CN201526619U Adjustable cardan shaft assembly |