| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 08/06/2009 | CA2713491A1 Spiral ribbed aluminum drillpipe |
| 08/05/2009 | EP2085566A2 Drilling assembly |
| 08/05/2009 | EP2084367A1 Reinforced polymeric siphon tubes |
| 08/05/2009 | EP2084363A1 Downhole apparatus and method |
| 08/05/2009 | EP2084362A1 Down hole apparatus and method |
| 08/05/2009 | EP2084053A1 Mooring system for a loading station |
| 08/05/2009 | CN201284629Y Pumping-assisted centralizer of pumping rod |
| 08/05/2009 | CN201284628Y Centralizer of screw pump transmission bar |
| 08/05/2009 | CN201284627Y Branching borehole connection device capable of expanding and sealing in case of oil or water |
| 08/05/2009 | CN201284626Y Sliding block type anti-releasing device for sucker rod |
| 08/05/2009 | CN201284625Y Movable elbow for well workover |
| 08/05/2009 | CN201284624Y Stainless steel inner lining pipe and coupling assembly |
| 08/05/2009 | CN101501294A Polymer matrix reinforced stiffening element and method of producing the same |
| 08/05/2009 | CN101501293A Apparatus and method for controlling motion of a bend stiffener |
| 08/04/2009 | US7569286 Abrasion of metal with silcon compound for wear resistance surfaces, welds; friction resistance; alloy contains carbon, boron,chromium,iron,niobium, nickel and manganese |
| 08/04/2009 | US7568861 Bend stiffener |
| 08/04/2009 | CA2561402C Composite spoolable tube with sensor |
| 08/04/2009 | CA2521287C Dual wall drill string assembly |
| 08/04/2009 | CA2509317C Method and apparatus for expanding and separating tubulars in a wellbore |
| 08/04/2009 | CA2486594C Connector for expandable downhole tubulars |
| 08/04/2009 | CA2466771C Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 08/04/2009 | CA2461673C Profiled encapsulation for use with instrumented expandable tubular completions |
| 08/04/2009 | CA2292171C Wellbore casing |
| 07/30/2009 | WO2009094245A2 Connection methods and systems |
| 07/30/2009 | WO2009094139A1 Rod guide with improved stator |
| 07/30/2009 | WO2009093929A1 Highly-tight screw joint |
| 07/30/2009 | WO2009093199A1 Intervention system with dynamic seal |
| 07/30/2009 | WO2009092933A1 Device for mounting a flexible line on a structure, and related equipment and method |
| 07/30/2009 | WO2009092908A2 Device for measuring the movement of a subsea deformable pipeline |
| 07/30/2009 | US20090188671 Junction having improved formation collapse resistance and method |
| 07/30/2009 | US20090188666 Method And System For Completing A Well |
| 07/30/2009 | CA2706286A1 A high-tightness threaded joint |
| 07/29/2009 | EP1180224B1 Scr top connector |
| 07/29/2009 | CN201280900Y Polished rod lubricator of pumping unit |
| 07/29/2009 | CN201280899Y Downhole pipe column length compensation apparatus |
| 07/29/2009 | CN101492999A Used of downhole fluid static pressure bearing |
| 07/29/2009 | CN100520143C Screw coupling for oil well pipe |
| 07/29/2009 | CN100519984C Threaded joint for steel pipe |
| 07/28/2009 | US7566235 Electrical connection assembly |
| 07/23/2009 | WO2009091607A1 Pc rod guide with rotor ridges |
| 07/23/2009 | WO2009071874A3 Improved centraliser |
| 07/23/2009 | WO2008152288A4 Bottom-surface connection installation comprising an elastic damping device absorbing the tension of the top end of a rigid subsurface pipe |
| 07/23/2009 | US20090183889 System and method for breaking chips formed by a drilling operation |
| 07/23/2009 | US20090183885 Rod guide with improved stator |
| 07/23/2009 | US20090183869 PC rod guide with rotor ridges |
| 07/23/2009 | CA2711916A1 Pc rod guide with rotor ridges |
| 07/22/2009 | EP2079633A2 Hybrid riser tower and methods of installing same |
| 07/22/2009 | CN201276989Y Single-bending screw suitable for fast well drilling assembly |
| 07/22/2009 | CN201276988Y Casing centralizer |
| 07/22/2009 | CN201276987Y Centralizer on screw drill |
| 07/22/2009 | CN201276986Y Oil pipe inner wall paraffin scraping centralizer |
| 07/22/2009 | CN201276985Y Abrasion-proof drilling tool stabilizer |
| 07/22/2009 | CN201276984Y Column jacket centralizer for under-pressure operation well head |
| 07/22/2009 | CN201276983Y Joint expansion-proof drilling tool connector |
| 07/22/2009 | CN201276982Y Direct clearance-regulation type connector of coring tool |
| 07/22/2009 | CN201276981Y Anti-blowout connector of drilling tool |
| 07/22/2009 | CN201276980Y Screw drill with replaceable transmission shaft coupling |
| 07/22/2009 | CN201276979Y Turning drilling rod |
| 07/22/2009 | CN201276978Y Communicator of flow string |
| 07/22/2009 | CN201276977Y Telescopic guard aperture casing tube apparatus used for shallow sea hole drilling |
| 07/22/2009 | CN201276976Y Small-adapter drilling rod for petroleum well drilling |
| 07/22/2009 | CN201276975Y Hollow sucker rod |
| 07/22/2009 | CN101487379A Security protection apparatus of pumping rod |
| 07/22/2009 | CN100516451C Oil field floor pipeline quick-acting connector |
| 07/22/2009 | CN100516450C Telescoping drill string |
| 07/22/2009 | CN100515690C Mode selection mechanism for power tool, and power tool incorporating such mechanism |
| 07/21/2009 | US7562909 Composite low cycle fatigue coiled tubing connector |
| 07/21/2009 | CA2499228C Multi-lateral wellbore systems and methods for forming same |
| 07/21/2009 | CA2485123C Multiple zone downhole intelligent flow control valve system and method for controlling commingling of flows from multiple zones |
| 07/21/2009 | CA2422832C Downhole tubular string connections |
| 07/21/2009 | CA2386425C Rock drill |
| 07/16/2009 | WO2009087371A1 Monitoring system for pipelines or risers in floating production installations |
| 07/16/2009 | WO2009086637A1 Electromagnetic telemetry assembly with protected antenna |
| 07/16/2009 | WO2009058725A3 Downhole seal bore repair device |
| 07/16/2009 | WO2009030926A3 A downhole device |
| 07/16/2009 | WO2009009190A3 Porous tubular structures |
| 07/16/2009 | US20090178809 Methods and Apparatus for Well Construction |
| 07/16/2009 | US20090178805 Production of natural gas from hydrates |
| 07/16/2009 | CA2711853A1 Electromagnetic telemetry assembly with protected antenna |
| 07/16/2009 | CA2711238A1 Slim-hole parasite string |
| 07/16/2009 | CA2711195A1 Progressive cavity apparatus with transducer and methods of forming and use |
| 07/15/2009 | EP2078893A2 Heat dissipation |
| 07/15/2009 | EP2078820A2 Coiled tubing wellbore drilling and surveying using a through the drill bit apparatus |
| 07/15/2009 | EP2078132A1 Downhole apparatus and method of forming the same |
| 07/15/2009 | EP1945902B1 Device for controlling slugging |
| 07/15/2009 | CN201273155Y 一种馈电状态传感器 An electrical state of the sensor supply |
| 07/15/2009 | CN201273154Y Elastic centralizer for pumping rod |
| 07/15/2009 | CN201273153Y Internal flow type sucker rod centralizer |
| 07/15/2009 | CN201273152Y Multifunctional strong-magnetic anti-wax and anti-scaling centralizer |
| 07/15/2009 | CN201273151Y Double-cylinder gas vibration absorber |
| 07/15/2009 | CN201273150Y Hydraulic releasing tool for well completion |
| 07/15/2009 | CN201273149Y Drilling tool |
| 07/15/2009 | CN201273148Y Cement pipe assembly used for ocean drill platform |
| 07/15/2009 | CN101484658A Coupling for dual member pipe |
| 07/15/2009 | CN101482000A Apparatus for preventing pumping rod disengaging from screw pump |
| 07/15/2009 | CN101481999A Drilling rod with asymmetric special-shaped cross section |
| 07/15/2009 | CN101481998A Bidirectional protection hot-cast pumping rod |
| 07/15/2009 | CN101481997A Production method of coupling-preset anti-loosing solid pumping rod |
| 07/15/2009 | CN101481996A Automatic pressure-regulating oil seal transmission shaft assembly |
| 07/15/2009 | CN101481995A High steel level petroleum casing pipe and oil pipe manufacturing process |