| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 04/27/2006 | US20060088385 Platform attitude adjustment augmentation method and apparatus |
| 04/27/2006 | US20060088377 Device for locking an electrical device to an accessory part |
| 04/27/2006 | US20060087448 Marking of pipe joints |
| 04/27/2006 | US20060086536 Electrical transmission apparatus through rotating tubular members |
| 04/27/2006 | US20060086517 Electrical connection for a power tool |
| 04/26/2006 | EP1650400A1 Drill string stabiliser |
| 04/26/2006 | EP1540131A4 "top drive swivel apparatus and method" |
| 04/26/2006 | EP1501645A4 Protective sleeve for threaded connections for expandable liner hanger |
| 04/26/2006 | EP1073823B1 Method and device for linking surface to the seabed for a submarine pipeline installed at great depth |
| 04/26/2006 | CN2775296Y Oil production pipe string device mounted with electric swirl heating pipe |
| 04/26/2006 | CN2775281Y Spin type oil pipe centralizer |
| 04/25/2006 | US7033117 Rock anchor |
| 04/25/2006 | US7032930 Electrical isolation connector subassembly for use in directional drilling |
| 04/25/2006 | US7032658 High power umbilicals for electric flowline immersion heating of produced hydrocarbons |
| 04/25/2006 | CA2334741C Casing drilling shoe |
| 04/25/2006 | CA2166907C Whipstock assembly for a sleeved casing |
| 04/20/2006 | WO2006041904A1 Riser connector |
| 04/20/2006 | WO2006041880A1 System, method, and apparatus for survey tool having roller knuckle joints for use in highly deviated horizontal wells |
| 04/20/2006 | WO2006041306A1 Electronic ID tag and co-operating antenna |
| 04/20/2006 | WO2006040197A1 Apparatus and method for connection and disconnection of a marine riser |
| 04/20/2006 | US20060084331 Buoyancy control systems for tubes |
| 04/20/2006 | US20060082136 Electrical isolation connector subassembly for use in directional drilling |
| 04/20/2006 | CA2587147A1 Electronic id tag and co-operating antenna |
| 04/19/2006 | EP1646765A1 Electrical imaging in conductive and non-conductive mud |
| 04/19/2006 | EP1646472A1 Pipe/connector weld joint, and methods of welding same |
| 04/19/2006 | EP1527254B1 An expandable metal liner for downhole components |
| 04/19/2006 | EP1476634B1 Drill member for rock drilling and a method for manufacturing the drill member |
| 04/19/2006 | CN2773299Y Abrasive sawtooth coal-cutting drilling rod |
| 04/19/2006 | CN1761601A Water intake riser |
| 04/19/2006 | CN1252407C Threaded joint for steel pipe |
| 04/19/2006 | CN1252373C Well repairing system and its method |
| 04/19/2006 | CN1252371C Oil-increasing pup joint |
| 04/19/2006 | CN1252370C Continuous sucker rod made of fiber reinforced composition and its making method |
| 04/18/2006 | US7029356 Buoyancy control systems for tubes |
| 04/18/2006 | US7028789 Drilling assembly with a steering device for coiled-tubing operations |
| 04/18/2006 | US7028788 Wear sleeve |
| 04/18/2006 | US7028787 Tong for wellbore operations |
| 04/18/2006 | US7028779 Auto-extending/retracting electrically isolated conductors in a segmented drill string |
| 04/18/2006 | CA2268155C Connector for an expandable tubing string |
| 04/18/2006 | CA2187434C Computer controlled downhole tools for production well control |
| 04/13/2006 | WO2006037886A1 Device for upper connection between two submarine fluid transporting pipelines |
| 04/13/2006 | US20060080064 Oilfield equipment identification method and apparatus |
| 04/13/2006 | US20060078372 Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine |
| 04/12/2006 | EP1644609A2 Method of thermally insulating pipes |
| 04/12/2006 | EP1644608A1 Coupling for dual member pipe |
| 04/12/2006 | EP1404945B1 Expandable wellbore stabiliser |
| 04/12/2006 | EP1248896B1 A polymeric centralizer |
| 04/12/2006 | CN2771460Y Sucker rod relief break-preventing device |
| 04/12/2006 | CN2771459Y Multi-stage flexible integral drilling tool stabilizer |
| 04/12/2006 | CN1759228A Drilling assembly and method |
| 04/12/2006 | CN1759227A Shoe for expandable liner system |
| 04/11/2006 | US7025535 Seafloor/surface connecting installation for a submarine pipeline which is connected to a riser by means of at least one elbow pipe element that is supported by a base |
| 04/11/2006 | US7025142 Bi-directional thruster pig apparatus and method of utilizing same |
| 04/11/2006 | US7025136 Torque reduction tool |
| 04/11/2006 | US7025135 Thread integrity feature for expandable connections |
| 04/11/2006 | CA2387299C Drilling tool with non rotating sleeve |
| 04/11/2006 | CA2265709C Safety joint |
| 04/06/2006 | WO2006037079A2 Apparatus and method for wireline imaging in nonconductive muds |
| 04/06/2006 | WO2006036068A1 Composite pipe having at least one metal end piece and method of manufacturing such a pipe |
| 04/06/2006 | US20060073722 Telescopic data coupler |
| 04/06/2006 | US20060071809 Method for collecting geological data from a well bore using casing mounted sensor |
| 04/06/2006 | US20060070738 Perforating gun quick connection system |
| 04/06/2006 | US20060070731 Stabilizer for a rod, particularly a string of drilling rods |
| 04/06/2006 | CA2581535A1 Apparatus and method for wireline imaging in nonconductive muds |
| 04/05/2006 | EP1643602A1 Energized slip ring assembly |
| 04/05/2006 | EP1641999A1 Drill string for upward drilling and components therefor |
| 04/05/2006 | EP1056968B1 Threaded connection for internally clad pipe |
| 04/05/2006 | CN2769497Y Offset stabilizing device |
| 04/05/2006 | CN2769496Y Oil pipe centralising device |
| 04/05/2006 | CN2769495Y Sucker rod centralizing ring spacing tool |
| 04/05/2006 | CN2769494Y Sucker rod anti-separating device |
| 04/05/2006 | CN2769493Y Small-diameter hydraulic release joint |
| 04/05/2006 | CN2769492Y High temperature sealing joint |
| 04/05/2006 | CN2769491Y Viscous oil thermal recovery well jacket pipe connecting structure |
| 04/05/2006 | CN2769490Y Rod and hoop integrated sucker rod |
| 04/05/2006 | CN1755062A Centralizer and its manufacturing method |
| 04/05/2006 | CN1249327C Sand screen with integrated sensors |
| 04/05/2006 | CN1248908C Apparatus for transferring hydrocarbons from a subsea source to a vessel |
| 04/04/2006 | US7021399 Power tool |
| 04/04/2006 | US7021390 Tubular liner for wellbore casing |
| 04/04/2006 | US7021382 Downhole axial force generating tool |
| 04/04/2006 | CA2421712C Methods and apparatus for forming a lateral wellbore |
| 04/04/2006 | CA2418574C Downhole fluid disposal apparatus and methods |
| 04/04/2006 | CA2400132C Recirculatable ball-drop release device for lateral oilwell drilling applications |
| 03/30/2006 | WO2006034251A2 Expandable seal |
| 03/30/2006 | WO2006033580A1 Safety joint |
| 03/30/2006 | WO2006033579A1 Bend stiffener |
| 03/30/2006 | US20060065406 Interposed joint sealing layer method of forming a wellbore casing |
| 03/30/2006 | US20060065405 Method for installing a water well pump |
| 03/30/2006 | US20060065391 Expandable seal |
| 03/30/2006 | CA2576989A1 Method of expansion |
| 03/29/2006 | EP1466068B1 Dual-member pipe driven power generator |
| 03/29/2006 | EP1159506B1 Steerable modular drilling assembly |
| 03/29/2006 | CN2767645Y Filling pile positioning tool for horizontal well |
| 03/29/2006 | CN2767638Y Air mechanical vibration-damper |
| 03/29/2006 | CN2767637Y Rotation joint for well drilling |
| 03/29/2006 | CN2767636Y Drill rod for pile foundation construction |
| 03/29/2006 | CN1752404A Gas well separate layer fracturing and producing integrated well completing pipe string and technique |
| 03/29/2006 | CN1247923C Surface treatment method for threaded joint for steel pipe |
| 03/29/2006 | CN1247875C Pumping well sucker-rod string rotation technique |