| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 09/27/2007 | US20070221392 Hand-held power tool with grounding |
| 09/26/2007 | EP1837482A1 System and method of installing and maintaining an offshore exploration and production system having an adjustable buoyancy chamber |
| 09/26/2007 | EP1836426A1 Pseudo two-step connection |
| 09/26/2007 | EP1836425A2 Methods and connections for coupled pipe |
| 09/26/2007 | EP1276953B1 Expandable apparatus for drift and reaming a borehole |
| 09/26/2007 | CN200952359Y Multifunction efficient antiwearing stablizer |
| 09/26/2007 | CN200952358Y Invertible tightening antireleasing device for sucker rod |
| 09/26/2007 | CN200952357Y Sucker rod anti-decoupling device |
| 09/26/2007 | CN200952356Y Composite nitrated anticorrosion oil pipe |
| 09/26/2007 | CN101042044A Pumping rod or oil sucking pipe electroplating iron-nickel/tungsten alloy double-layer coating and surface processing technology |
| 09/26/2007 | CN100339634C Wedgethread pipe connection |
| 09/26/2007 | CN100339553C Apparatus for connecting two basically rod shaped and tube shaped elements |
| 09/25/2007 | US7273108 Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore |
| 09/25/2007 | CA2422834C Isolation bypass transition joint |
| 09/25/2007 | CA2394950C Three dimensional steerable system |
| 09/25/2007 | CA2338956C Threaded and coupled connection for improved fatigue resistance |
| 09/25/2007 | CA2291922C Rotary steerable well drilling system utilizing sliding sleeve |
| 09/25/2007 | CA2260523C Sealed lateral wellbore junction assembled downhole |
| 09/25/2007 | CA2229120C Methods of completing a subterranean well and associated apparatus |
| 09/24/2007 | CA2541541A1 Apparatus for keeping a down hole drilling tool vertically aligned |
| 09/22/2007 | CA2582213A1 Dual containment systems, methods and kits |
| 09/21/2007 | CA2842597A1 Reinforcing matrix for spoolable pipe |
| 09/21/2007 | CA2582355A1 Reinforcing matrix for spoolable pipe |
| 09/20/2007 | WO2006012731A3 Integrated magnetic ranging tool |
| 09/20/2007 | US20070215388 Downhole Apparatus for Mobilising Drill Cuttings |
| 09/20/2007 | CA2636707A1 Manipulatable spider components adapted for cooperation with a vertically reciprocating control line guide |
| 09/19/2007 | EP1834063A2 Threads with perturbations |
| 09/19/2007 | EP1834062A2 Downhole tool |
| 09/19/2007 | EP1597455B1 Radially adjustable downhole devices & methods for the same |
| 09/19/2007 | EP1509675B1 Method for construction and completion of injection wells |
| 09/19/2007 | CN200949451Y Multifunctional centering paraffin scraper fluid increasing device |
| 09/19/2007 | CN200949429Y Pump rod collar guide apparatus |
| 09/19/2007 | CN200949428Y Centralizing carry sand device of pumping rod |
| 09/19/2007 | CN200949427Y Inner collar oil pipe |
| 09/19/2007 | CN200949426Y Jointing drills |
| 09/19/2007 | CN200949425Y Eccentrically wearing-resistant collar for screw bearing sucker rod |
| 09/19/2007 | CN101037931A Self-lubricating ferrous alloy spray welding sucker rod joint |
| 09/19/2007 | CN101037930A Self-lubricating nickel base alloy sucker rod joint |
| 09/19/2007 | CN101037929A Well drilling blowout prevention killing well joint |
| 09/19/2007 | CN100338331C Two string drilling system |
| 09/18/2007 | US7270188 Radial expansion of tubular members |
| 09/18/2007 | CA2449424C Roller sub |
| 09/18/2007 | CA2322631C An axle, a friction reducing fitting and an axle installation method |
| 09/13/2007 | WO2007073378A8 Release mechanism for downhole tool |
| 09/13/2007 | US20070209839 System and method for reducing wear in drill pipe sections |
| 09/13/2007 | US20070209801 Downhole draw down pump and method |
| 09/13/2007 | US20070209799 In situ recovery from a hydrocarbon containing formation |
| 09/13/2007 | US20070209792 Reinforced resilient wiper element |
| 09/12/2007 | EP1831597A2 Disassembleable washer device for down-hole drills |
| 09/12/2007 | EP1831502A2 Centralizer-based survey and navigation device and method |
| 09/12/2007 | EP1831500A1 Method for casing drilling, drilling unit and adapter device |
| 09/12/2007 | EP1346128B1 Adjustable stabiliser for directional drilling |
| 09/12/2007 | CN200946465Y Reverse rotation locking device for elevating pumping rod of screw pump well |
| 09/12/2007 | CN200946464Y Rigid centralizer for straight well and directional well |
| 09/12/2007 | CN200946463Y Spiral seal type sleeve connection structure |
| 09/12/2007 | CN200946462Y Anti-wearing and slip-proof coupler |
| 09/12/2007 | CN200946461Y Pumping rod weighting tube |
| 09/12/2007 | CN101035963A Method of manufacturing a tubular member |
| 09/12/2007 | CN101035962A Bend stiffener |
| 09/11/2007 | US7267185 Bit retainer system |
| 09/11/2007 | CA2270109C Adjustable housing for a mud motor |
| 09/07/2007 | WO2007098965A1 Tube protection with plugged tube cladding |
| 09/07/2007 | WO2007022451B1 Retaining lines in bypass groove on downhole equipment |
| 09/06/2007 | US20070205009 Umbilical |
| 09/05/2007 | EP1631762A4 Threaded joint for steel pipes |
| 09/05/2007 | EP1534986B1 Means for connecting pipes comprising an axial press surface to take axial pressure from a preloading tool |
| 09/05/2007 | CN200943475Y Downhole pipe string for layered oil production |
| 09/05/2007 | CN200943454Y Taper thread anti-slip abrasive-resistant centralizer for screw pump well |
| 09/05/2007 | CN200943453Y Rubber centralizer |
| 09/05/2007 | CN200943452Y 管柱扶正器 String centralizer |
| 09/05/2007 | CN200943451Y Rubber wing centralizer |
| 09/05/2007 | CN200943450Y Torque-resistant drill pipe joint |
| 09/05/2007 | CN200943449Y Riser pipe for marine petroleum drilling well |
| 09/05/2007 | CN101029559A Long-spiral replaceable and extruded borehole construction |
| 09/05/2007 | CN100335740C Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine |
| 09/05/2007 | CN100335739C Male portion, drill bit and threaded joint for percussive rock drilling |
| 09/04/2007 | US7264061 Well packer for a pipe string and a method of leading a line past the well packer |
| 09/04/2007 | US7264060 Side entry sub hydraulic wireline cutter and method |
| 09/04/2007 | US7264058 Arrangement and method for regulating bottom hole pressures when drilling deepwater offshore wells |
| 09/02/2007 | CA2756093A1 Rotating control head radial seal protection and leak detection systems |
| 09/02/2007 | CA2756090A1 Rotating control head radial seal protection and leak detection systems |
| 09/02/2007 | CA2729427A1 Rotating control head radial seal protection and leak detection systems |
| 08/30/2007 | US20070199694 Self-orienting guide shoe |
| 08/29/2007 | EP1825186A1 A pipe joint lubrication device |
| 08/29/2007 | EP1554461B1 Cement flow control tool |
| 08/29/2007 | EP1339992B1 Knuckle-swivel for drilling wells |
| 08/29/2007 | EP1332270B1 Integrated modular connector in a drill pipe |
| 08/29/2007 | EP1109989B1 Cable protector and support |
| 08/29/2007 | CN200940459Y Vacuum coring type rock core tube joint |
| 08/29/2007 | CN200940452Y Oil pipe shock reducing protector |
| 08/29/2007 | CN200940451Y Sleeve hydraulic variable diameter centralizer |
| 08/29/2007 | CN200940450Y Non-adhesive anti-wear sleeve |
| 08/29/2007 | CN200940449Y 机械液压式减振器 Mechanical hydraulic shock absorber |
| 08/29/2007 | CN200940448Y Hammer type quick self locking joint sleeve |
| 08/29/2007 | CN101027454A Composite pipe having at least one metal end piece and method of manufacturing such a pipe |
| 08/29/2007 | CN100334321C Oil pipe in oil pumping well grout filling leakage blocking construction |
| 08/28/2007 | US7261326 Submersible pump drop pipe and casing assembly connection and method of manufacture |
| 08/28/2007 | US7261161 Well testing system |
| 08/28/2007 | US7261155 Cable side-entry sub with grease injection flow tubes |
| 08/28/2007 | US7261154 Conformable apparatus in a drill string |