| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 07/14/2010 | CN201526310U Well cementation casing-cement sheath indoor analog manufacturer |
| 07/14/2010 | CN201526293U Blowout preventing tubing anchor |
| 07/14/2010 | CN201526288U Rib drill stem |
| 07/14/2010 | CN201526287U Special LWD-350 non-magnetic drill collar |
| 07/14/2010 | CN201526286U Sucker rod centralizer |
| 07/14/2010 | CN201526285U Up-lighting drill-rod lifter for drilling blastholes |
| 07/14/2010 | CN201526284U Coal seam drilling torque reduction stabilizer |
| 07/14/2010 | CN201526283U Oil conduit connecting type anti-drop buffering safety device |
| 07/14/2010 | CN201526282U Blowout control connecting-tripping device |
| 07/14/2010 | CN201526281U Anti-looseness device for drilling column |
| 07/14/2010 | CN201526280U Rope drill pipe with large opening diameter |
| 07/14/2010 | CN201526279U Anti-collapse sleeve and component |
| 07/14/2010 | CN201526278U Low-speed large-torque screw drill tool |
| 07/14/2010 | CN201526277U Hot-wash oil-pumping pipe string of heavy oil well |
| 07/14/2010 | CN201526276U Recognizable drill rod |
| 07/14/2010 | CN201526272U Drilling and expanding integrated electric drill head for mining coal |
| 07/14/2010 | CN201526266U 10-meter deep hole drill drilling device with deviation prevention function |
| 07/14/2010 | CN101778993A Digging tool, digging bit, and device |
| 07/14/2010 | CN101778992A Drill bit gauge pad control |
| 07/14/2010 | CN101775964A Auto-rotation centralizer with dynamic pressure lubricating effect |
| 07/14/2010 | CN101775963A Nylon66-packaged ceramic pellet centering guide |
| 07/14/2010 | CN101775962A Active shock absorber for oil drilling |
| 07/14/2010 | CN101775960A Cast-in-situ cylinder pile rotary drilling rig |
| 07/13/2010 | US7754966 Umbilical |
| 07/13/2010 | CA2596282C Wellbore circulation system |
| 07/13/2010 | CA2562339C A component used in the formation, construction, repair and production phase of a well bore and a method for identifying same |
| 07/13/2010 | CA2442233C Downhole axial force generating tool |
| 07/13/2010 | CA2441757C Method for preventing critical annular pressure buildup |
| 07/13/2010 | CA2299076C Mono-diameter wellbore casing |
| 07/08/2010 | WO2010078366A2 Marine drilling riser connector with removable shear elements |
| 07/08/2010 | WO2010078111A2 Well equipment for heated fluid recovery |
| 07/08/2010 | WO2010076535A2 Method for disconnecting a device for transferring fluid between the bottom of an expanse of water and the surface and associated transfer device |
| 07/08/2010 | WO2010076007A1 Sealed tubular connection used in the oil industry |
| 07/08/2010 | WO2010042873A3 Integrated installation and workover controll system |
| 07/08/2010 | WO2009086254A8 Communication connections for wired drill pipe joints for providing multiple communication paths |
| 07/08/2010 | US20100172699 Hybrid Riser Tower and Methods of Installing Same |
| 07/08/2010 | US20100171593 Process and assembly for identifying and tracking assets |
| 07/08/2010 | US20100171306 Threaded element of a component with opposed threading portions and corresponding tubular threaded connection |
| 07/08/2010 | US20100170671 Systems and methods for providing electrical transmission in downhole tools |
| 07/08/2010 | CA2829903A1 Methods for cleaning out horizontal wellbores using coiled tubing |
| 07/08/2010 | CA2748151A1 Sealed tubular connection used in the oil industry |
| 07/08/2010 | CA2747981A1 Well equipment for heated fluid recovery |
| 07/07/2010 | EP2203623A1 Orientation sensor for downhole tool |
| 07/07/2010 | EP2203622A2 Downhole seal bore repair device |
| 07/07/2010 | EP2203621A2 Modular connector and method |
| 07/07/2010 | EP2203620A1 Structure for wired drill pipe having improved resistance to failure of communication device slot |
| 07/07/2010 | CN201521280U Novel drill pipe valve |
| 07/07/2010 | CN201521262U Device for centering oil pipe in downhole operation |
| 07/07/2010 | CN201521261U hydraulic throttling centralizer |
| 07/07/2010 | CN201521260U 新型螺杆钻具扶正器 The new screw drill centralizer |
| 07/07/2010 | CN201521259U Blowout preventing interlocking type clamping jaw connecting-tripping device |
| 07/07/2010 | CN201521258U Anti-corrosion oil pipe coupler |
| 07/07/2010 | CN201521257U Theftproof clamping hoop |
| 07/07/2010 | CN201521256U Drum-shaped sucker-rod coupling |
| 07/07/2010 | CN201521255U Novel anti-splash joint |
| 07/07/2010 | CN201521254U Novel pullout blowout control joint |
| 07/07/2010 | CN201521253U Titanium polymer resin anti-scale antiseptic oil tube of polymer injection well |
| 07/07/2010 | CN101772616A Excavation device |
| 07/07/2010 | CN101772614A Rotary steerable drilling system |
| 07/07/2010 | CN101769129A Integral layering gas recovery technology tubular column and application method thereof |
| 07/07/2010 | CN101769126A Hydraulic middle-drive retractable multi-spindle drilling and stirring device |
| 07/06/2010 | US7749035 Buoyancy clamp and method of application |
| 07/06/2010 | US7748479 Box gusseted earth auger |
| 07/06/2010 | US7748465 Production tubing hydraulic release mechanism and method of use |
| 07/06/2010 | CA2605893C Top plunger adapter |
| 07/06/2010 | CA2596318C Drilling and lining method using a spoolable tubing |
| 07/01/2010 | WO2010073016A2 An improved seal |
| 07/01/2010 | US20100163250 Well equipment for heated fluid recovery |
| 06/30/2010 | EP2201280A2 Floating support comprising a device for the retention and securing of a subsea pipe |
| 06/30/2010 | EP2201212A1 Apparatus and method for ratcheting stimulation tool |
| 06/30/2010 | CN201517417U Centralizer for wireless drilling inclinometer |
| 06/30/2010 | CN201517387U Flexible device for preventing upward movement of sleeve tube |
| 06/30/2010 | CN201517378U Wideband auger stem |
| 06/30/2010 | CN201517377U Centralizer of rod part of sucker rod |
| 06/30/2010 | CN201517376U Rolling centralizer for oil pipe of horizontal well |
| 06/30/2010 | CN201517375U Petroleum drilling anti-wear sleeve |
| 06/30/2010 | CN201517374U Gas production well completion column jacket |
| 06/30/2010 | CN201517373U Fast oiling device |
| 06/30/2010 | CN201517365U Screw drilling tool for coal mines |
| 06/30/2010 | CN101761312A Drilling rod with ladder guide sleeve |
| 06/30/2010 | CN101760022A Nylon 66 composition for petroleum sucker rod centralizer material |
| 06/30/2010 | CN101396874B Preparation method and device of eccentric wear prevention pumping rod |
| 06/30/2010 | CA2689402A1 Multiple production string apparatus |
| 06/30/2010 | CA2688926A1 Downhole multiple bore tubing apparatus |
| 06/29/2010 | US7745379 injecting orthophosphate ester into annulus between carrier pipe and hydrocarbon conveying tubulars; ferric sulphate as gelling agent |
| 06/29/2010 | US7744314 Clamping device for buoyancy bodies |
| 06/29/2010 | US7744312 Offshore pipe string system and method |
| 06/29/2010 | US7743829 Cement flow control tool |
| 06/29/2010 | CA2592949C Gravel pack multi-pathway tube with control line retention and method for retaining control line |
| 06/29/2010 | CA2418920C Screw threaded joint for continuous-profile tubes |
| 06/29/2010 | CA2377697C Expandable joint connector |
| 06/24/2010 | WO2010070361A1 Method and apparatus for identifying parts used in the construction and maintenance of an oil or gas well |
| 06/24/2010 | WO2010070305A2 Cables for downhole use |
| 06/24/2010 | WO2010069863A1 Pipe coupling arrangement |
| 06/24/2010 | WO2010069491A1 Tubular connection with self-locking threading used in the oil industry |
| 06/24/2010 | WO2009080284A3 Apparatus for receiving and transmitting signals in electromagnetic telemetry system used in a wellbore |
| 06/24/2010 | WO2009056845A3 Connecting assembly |
| 06/24/2010 | US20100158615 Riser Tensioner with Shrouded Rods |
| 06/24/2010 | US20100155144 Drilling tool for rock |
| 06/24/2010 | US20100155067 Systems and methods for using a passageway through subterranean strata |