| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 03/24/2005 | US20050062352 Unipolar transverse magnetic flux machine |
| 03/24/2005 | US20050062288 Thread Spacer |
| 03/24/2005 | US20050061500 Internal slip connector |
| 03/24/2005 | DE10133614B4 Druckringadaptersystem Pressure ring adapter system |
| 03/23/2005 | EP1516103A1 Multi-point high pressure seal for expandable tubular connections |
| 03/23/2005 | EP1516102A1 Male portion, drill bit and threaded joint for percussive rock drilling |
| 03/23/2005 | EP1472024A4 Protective sleeve for threaded connections for expandable liner hanger |
| 03/23/2005 | EP1147283B1 Multilateral well and electrical transmission system |
| 03/23/2005 | CN2687327Y Auxiliary pumping device |
| 03/23/2005 | CN2687308Y Sucker rod centralising device |
| 03/23/2005 | CN2687307Y Collar-free petroleum casing pipe |
| 03/23/2005 | CN2687306Y Centering disconnecting-connecting device |
| 03/23/2005 | CN2687305Y Anticorrosive anti-wear oil-pumping polish rod |
| 03/23/2005 | CN1599834A Downhole assembly releasable connection |
| 03/23/2005 | CN1599833A Thrust control apparatus |
| 03/23/2005 | CN1598238A Guiding type centering guide of sucker rod for screw pump well |
| 03/22/2005 | US6869253 Hybrid riser or pipe for fluid transfer |
| 03/22/2005 | US6869111 Lubricating coating composition suitable for lubrication of a threaded joint |
| 03/22/2005 | US6869080 Metal-to-metal sealing system |
| 03/22/2005 | US6868906 Closed-loop conveyance systems for well servicing |
| 03/22/2005 | CA2186663C Two-piece lead seal pothead connector |
| 03/18/2005 | CA2481960A1 Thread spacer |
| 03/17/2005 | WO2005024247A1 Cladding |
| 03/17/2005 | US20050057005 Seal arrangement |
| 03/17/2005 | US20050056466 Drill string for upward drilling and components therefor |
| 03/17/2005 | US20050056463 Steerable bit assembly and methods |
| 03/16/2005 | EP1246996B1 System and method for the connection of a two-piece drill pipe protector |
| 03/16/2005 | EP1019650B1 Improved composite drill pipe |
| 03/16/2005 | CN2685539Y Screw clutch connecting sucker rod centralising device |
| 03/16/2005 | CN2685538Y Rotary moving sucker rod centralising device |
| 03/16/2005 | CN2685537Y Steel-plastic composite sucker rod coupling centralising device |
| 03/16/2005 | CN2685536Y Elevator gripping surface casing coupling device |
| 03/16/2005 | CN2685535Y Sucker rod coupling |
| 03/16/2005 | CN2685534Y Double-layer composite corrosion proof oil pipe |
| 03/16/2005 | CN2685533Y Antitwisting release proof hollow sucker rod |
| 03/16/2005 | CN1596331A Expandable tubes with overlapping end portions |
| 03/16/2005 | CN1594829A Method for preventing casing wear in oil field |
| 03/16/2005 | CN1193160C Drilling apparatus for drilling well in stratum |
| 03/15/2005 | US6868040 Wireless power and communications cross-bar switch |
| 03/15/2005 | US6866306 Low-loss inductive couplers for use in wired pipe strings |
| 03/15/2005 | US6866106 Fluid drilling system with flexible drill string and retro jets |
| 03/10/2005 | WO2005022012A1 Improved seal |
| 03/10/2005 | WO2005021929A1 Maximizing the efficacy of thiocyanate scavengers in oilfield brines |
| 03/10/2005 | WO2005021925A1 Seafloor-surface coupling device comprising a flexible, leak-tight connection between a riser and a float |
| 03/10/2005 | WO2005021921A2 A method of radially expanding and plastically deforming tubular members |
| 03/10/2005 | WO2004109173A8 Threaded joint for steel pipes |
| 03/10/2005 | US20050051340 Downhole draw down pump and method |
| 03/10/2005 | CA2797648A1 Improved seal |
| 03/10/2005 | CA2537153A1 Improved seal |
| 03/10/2005 | CA2536623A1 A method of radially expanding and plastically deforming tubular members |
| 03/09/2005 | EP1512152A1 Method and apparatus for mwd formation testing |
| 03/09/2005 | EP1511944A1 Method and assembly for the rapid connection and separation of interconnectable elements |
| 03/09/2005 | EP1511911A1 A thread joint for a drill string for percussive rock-drilling |
| 03/09/2005 | EP1204806B1 Floating support comprising a central cavity including a plurality of sections |
| 03/09/2005 | EP1165931B1 Stabiliser tool block wear pad assembly |
| 03/09/2005 | CN2683827Y Modified pumping unit connecting bar |
| 03/09/2005 | CN2683826Y Oil well casing for drilling well |
| 03/09/2005 | CN2683825Y Equal connecting external diameter non standard oil pipe |
| 03/09/2005 | CN1590707A Rock anchor |
| 03/08/2005 | US6863313 Threaded connection for internally clad pipe |
| 03/08/2005 | US6863279 Redundant seal design for composite risers with metal liners |
| 03/08/2005 | US6863137 Well system |
| 03/08/2005 | US6863131 Expandable screen with auxiliary conduit |
| 03/08/2005 | US6863129 Method and apparatus for providing plural flow paths at a lateral junction |
| 03/03/2005 | WO2005019595A1 Fairing for a riser |
| 03/03/2005 | WO2004053284A3 Isolated electrical connection in a drill string |
| 03/03/2005 | WO2004023014A3 Threaded connection for expandable tubulars |
| 03/03/2005 | US20050047872 Deepwell reel |
| 03/03/2005 | US20050046591 Method and apparatus for performing diagnostics on a downhole communication system |
| 03/03/2005 | US20050046590 Polished downhole transducer having improved signal coupling |
| 03/03/2005 | US20050046589 Electromagnetic borehole telemetry system incorporating a conductive borehole tubular |
| 03/03/2005 | US20050046587 Electromagnetic borehole telemetry system incorporating a conductive borehole tubular |
| 03/03/2005 | US20050045386 Drill string member |
| 03/03/2005 | US20050045385 Down-the-hole drill hammer |
| 03/03/2005 | US20050045343 A Conduit Having a Cable Therein |
| 03/03/2005 | US20050045341 Radial expansion of tubular members |
| 03/03/2005 | US20050045339 Drilling jar for use in a downhole network |
| 03/03/2005 | US20050045329 Intelligent well system and method |
| 03/03/2005 | US20050045324 Radial expansion of tubular members |
| 03/03/2005 | US20050044690 Well screen cover |
| 03/03/2005 | CA2439840A1 A roller drill pipe protector |
| 03/02/2005 | EP1509675A1 Method for construction and completion of injection wells |
| 03/02/2005 | EP1509671A1 Multi-catenary type rising column |
| 03/02/2005 | EP1389260B1 Radially expandable tubular with supported end portion |
| 03/02/2005 | CN2682189Y Full screw drill rod |
| 03/02/2005 | CN1587633A Expandable drilling shoe |
| 03/01/2005 | US6860514 Drill string joint |
| 03/01/2005 | US6860420 Method of joining metal oilfield tubulars and well provided therewith |
| 03/01/2005 | CA2367650C Apparatus comprising expandable bistable tubulars and methods for their use in wellbores |
| 03/01/2005 | CA2345401C Vibration damping tool |
| 02/27/2005 | CA2740063A1 Electromagnetic borehole telemetry system incorporating a conductive borehole tubular |
| 02/24/2005 | WO2004104145A3 Resin bonded particulate anti-seize agent, lubricating system made therefrom and methods of making and using same |
| 02/24/2005 | US20050042952 Marine riser system |
| 02/24/2005 | US20050042943 Method and arrangement for the rapid connection and detachment of connectable elements |
| 02/24/2005 | US20050042903 Wet mateable connector |
| 02/24/2005 | US20050039928 Radial expansion of tubular members |
| 02/24/2005 | US20050039927 Intelligent well system and method |
| 02/24/2005 | US20050039924 Method for installing a water well pump |
| 02/24/2005 | US20050039912 Conformable Apparatus in a Drill String |
| 02/24/2005 | US20050039911 Maximizing the efficacy of thiocyanate scavengers in oilfield brines |