| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 01/21/2009 | CN201184136Y Anti-drop strengthening pumping rod |
| 01/21/2009 | CN201184135Y Small sleeve pipe pillar restoring sleeve loss well |
| 01/21/2009 | CN101351614A A rock drill tool, a rock drill bit and a production method |
| 01/21/2009 | CN101349145A Basalt cable capable of replacing pumping rod made by steel |
| 01/21/2009 | CN100453769C Method and apparatus for making screen pipe to be drawn out easily |
| 01/21/2009 | CN100453685C High Cr series stainless steel jointless oil well tube and its production method |
| 01/20/2009 | US7478651 Bore-lining tubing |
| 01/20/2009 | CA2473496C Bi-directional thruster pig apparatus and method of utilizing same |
| 01/20/2009 | CA2425091C Shear coupling for oil well pump strings |
| 01/15/2009 | WO2009009456A1 Multi-purpose well servicing apparatus |
| 01/15/2009 | WO2009008798A1 An elongated percussive rock drilling element, a method for production thereof and a use thereof |
| 01/15/2009 | WO2009007494A1 Bit assembly |
| 01/15/2009 | WO2008144249A3 Expandable centralizer for expandable pipe string |
| 01/15/2009 | WO2008138957A3 System for drilling a wellbore |
| 01/15/2009 | WO2008122423A3 Rod coupling comprising a pin |
| 01/15/2009 | WO2008111828A3 Seamless steel pipe to be used as a steel catenary riser in the touchdown zone |
| 01/15/2009 | US20090013775 Downhole tool sensor system and method |
| 01/15/2009 | DE102007016822B4 Gestängekupplung mit Zapfen Pushrod connector with pin |
| 01/15/2009 | CA2693781A1 Bit assembly |
| 01/15/2009 | CA2692607A1 Multi-purpose well servicing apparatus |
| 01/15/2009 | CA2684104A1 Porous tubular structures |
| 01/14/2009 | EP1917416B1 Installation comprising at least two seafloor-surface connectors for at least two submarine pipelines resting on the seafloor |
| 01/14/2009 | CN201180752Y Buffer spring for garden ground auger |
| 01/14/2009 | CN201180504Y Fast joint used for petroleum drilling and extraction |
| 01/14/2009 | CN201180503Y Drill rod |
| 01/14/2009 | CN201180495Y Fast connecting apparatus of chip removal pipe for gas drilling |
| 01/14/2009 | CN101343991A Single bore diameter well completion structure and well completion method |
| 01/14/2009 | CN101343984A Cement pipe assembly used for ocean drill platform |
| 01/14/2009 | CN101342551A Sucker rod flattener |
| 01/14/2009 | CN100451420C Threaded joint for steel pipes |
| 01/13/2009 | US7475734 Downhole wet connect using piezoelectric contacts |
| 01/13/2009 | US7475729 Method for construction and completion of injection wells |
| 01/13/2009 | CA2488302C Apparatus and method for acquiring information while drilling |
| 01/13/2009 | CA2460524C Steerable underreaming bottom hole assembly and method |
| 01/13/2009 | CA2441130C Steel pipe for embedding-expanding, and method of embedding-expanding oil well steel pipe |
| 01/13/2009 | CA2413539C Centraliser |
| 01/13/2009 | CA2314801C Apparatus for measurement |
| 01/08/2009 | WO2009006528A1 Centering structure for tubular member and method of making same |
| 01/08/2009 | WO2009006334A1 Connections for expandable tubulars |
| 01/08/2009 | WO2009004337A2 Improved damping apparatus |
| 01/08/2009 | WO2008124855A3 Method and device for securing an externally threaded object against being unscrewed |
| 01/08/2009 | US20090010703 Fluid dispenser assembly |
| 01/08/2009 | US20090008099 Centralization and Running Tool and Method |
| 01/08/2009 | US20090008087 Threaded joint for an oil-well tubing |
| 01/08/2009 | US20090008086 Centering Structure for Tubular Member and Method of Making Same |
| 01/08/2009 | US20090008084 Method and apparatus for connecting shunt tubes to sand screen assemblies |
| 01/08/2009 | CA2717813A1 Centering structure for tubular member and method of making same |
| 01/07/2009 | EP2010747A1 Riser assembly |
| 01/07/2009 | CN201176866Y Fixed pressure production mandrel |
| 01/07/2009 | CN201176855Y Top board separation layer monitoring transmitter |
| 01/07/2009 | CN201176854Y Boring tool stabilizers |
| 01/07/2009 | CN201176853Y Ringer type abrasive-reducing impact rear joint |
| 01/07/2009 | CN101338651A Pre-mixed abrasive high pressure water-jet system rotary pipe joint structure |
| 01/07/2009 | CN100449110C Apparatus for connecting branching well window and connecting method thereof |
| 01/06/2009 | US7474221 Marking of pipe joints |
| 01/06/2009 | US7473844 Subsea umbilical |
| 01/06/2009 | US7472763 Wear resistant tubular connection |
| 01/06/2009 | US7472755 Method for inspection and repair of a flexible joint |
| 01/06/2009 | CA2443007C Bore-lining tubing |
| 01/03/2009 | WO2008002534A1 A drilling string back off sub apparatus and method for making and using same |
| 01/03/2009 | CA2636751A1 Swivel joint with uniform ball bearing requirements |
| 01/03/2009 | CA2636526A1 Stress and torque reducing tool |
| 01/01/2009 | US20090003974 Transport assembly |
| 01/01/2009 | US20090001721 Protective sleeve for threaded connections for expandable liner hanger |
| 01/01/2009 | US20090000826 Method and apparatus for controlling precession in a drilling assembly |
| 12/31/2008 | WO2009002996A1 Rotary steerable drilling system |
| 12/31/2008 | WO2009001036A1 Improved well intervention system |
| 12/31/2008 | WO2009000851A1 Threaded joint with pressurizable seal |
| 12/31/2008 | WO2009000428A1 Threaded element of a component with opposed threading portions and corresponding tubular threaded connection |
| 12/31/2008 | WO2008117172A3 Oilfield threaded connection |
| 12/31/2008 | EP2009340A1 Threaded joint with pressurizable seal |
| 12/31/2008 | EP2007966A2 Method and system for forming a non-circular borehole |
| 12/31/2008 | EP2007965A1 A connector assembly for an off shore riser |
| 12/31/2008 | EP1660795B1 Improved seal |
| 12/31/2008 | CN201173095Y Screw pump well centering guide for sucker rod |
| 12/31/2008 | CN201173094Y Super strength socket type torquemoment pumping rod |
| 12/31/2008 | CN201173087Y Deep sea core sampling boring machine drilling power head |
| 12/31/2008 | CN101333914A Oil pumping rod gas rotating shock-absorber |
| 12/31/2008 | CN101333913A Oil gas field water separation pipe joint |
| 12/31/2008 | CN101333912A Flexible drill shaft |
| 12/31/2008 | CN101333911A Small caliber cold-drawing oil conduit and its processing method |
| 12/31/2008 | CA2694345A1 Improved well intervention system |
| 12/31/2008 | CA2692061A1 Threaded element of a component with opposed threading portions and corresponding tubular threaded connection |
| 12/31/2008 | CA2685398A1 Threaded joint with pressurizable seal |
| 12/30/2008 | US7470383 Submersible pump drop pipe and casing assembly connection and method of manufacture |
| 12/30/2008 | CA2496170C Gap sub assembly |
| 12/30/2008 | CA2443530C Threaded joint for steel pipe and method for surface treatment of the threaded joint |
| 12/25/2008 | US20080317555 Subsea System Provided With a Controllable Curvature Flexible Pipe |
| 12/25/2008 | US20080317547 Double pin connector and hydraulic connect with seal assembly |
| 12/25/2008 | US20080315471 System And Method For Damping Vibration In A Drill String |
| 12/25/2008 | US20080314644 Device for a Borehole Arrangement |
| 12/25/2008 | US20080314642 Tubular Member Connection |
| 12/25/2008 | US20080314640 Hydrocarbon recovery drill string apparatus, subterranean hydrocarbon recovery drilling methods, and subterranean hydrocarbon recovery methods |
| 12/24/2008 | WO2008157441A1 Control line running system |
| 12/24/2008 | WO2008156375A1 Apparatus for directional control of a drilling tool |
| 12/24/2008 | WO2008155578A1 Flow restrictor coupling |
| 12/24/2008 | WO2008155046A1 Apparatus for subsea intervention |
| 12/24/2008 | CN201170177Y Uncoupling machine |
| 12/24/2008 | CN201170064Y Pumping rod forced righting bias-proof apparatus |
| 12/24/2008 | CN201170063Y Drill rod screw thread protector |