| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 06/16/2009 | CA2444005C Disconnect for use in a wellbore |
| 06/11/2009 | WO2009073656A1 Apparatus and methods to optimize fluid flow and performance of downhole drilling equipment |
| 06/11/2009 | WO2009073464A1 Caisson system |
| 06/11/2009 | WO2009073414A2 Magnetic motor shaft couplings for wellbore applications |
| 06/11/2009 | WO2009071874A2 Improved centraliser |
| 06/11/2009 | WO2009048319A3 Installing an expandable tubular in a subsea wellbore |
| 06/11/2009 | WO2008152372A3 Apparatus for and method of protecting an umbilical |
| 06/11/2009 | WO2003040513A3 In situ thermal processing of a hydrocarbon containing formation |
| 06/11/2009 | CA2707602A1 Apparatus and methods to optimize fluid flow and performance of downhole drilling equipment |
| 06/11/2009 | CA2707591A1 Improved centraliser |
| 06/10/2009 | CN201254963Y Dentate screw drilling rod |
| 06/10/2009 | CN201254962Y Centralizer of pumping rod |
| 06/10/2009 | CN201254961Y Anti-releasing rotating wax scraping centralizer for sucker rod roller |
| 06/10/2009 | CN201254960Y Ferromagnetic, block-resistant, rotating wax-scraping and oil drainage centralizer |
| 06/10/2009 | CN201254959Y Oil pipe joint for moderating stress concentration work |
| 06/10/2009 | CN201254958Y Torsion resistant anti-releasing joint for hollow sucker rod |
| 06/10/2009 | CN201254957Y Non-coupling straight-connecting sleeve pipe |
| 06/10/2009 | CN201254956Y Anti-biasing-wear hollow sucker rod |
| 06/10/2009 | CN201254955Y Integral extension drill rod |
| 06/10/2009 | CN101454534A Dual rod drill pipe with improved flow path method and apparatus |
| 06/10/2009 | CN100497879C Automatically bevel-variable contact type sucker rod centering guide |
| 06/09/2009 | US7543659 Modular connector and method |
| 06/09/2009 | CA2645799A1 Staged actuation shear sub for use downhole |
| 06/09/2009 | CA2513643C Centrifugal applicator |
| 06/09/2009 | CA2476370C Electromagnetic gap sub assembly |
| 06/09/2009 | CA2463243C Joint for use with expandable tubulars |
| 06/09/2009 | CA2426400C Rock drilling machine |
| 06/09/2009 | CA2415201C Deploying a cable through a guide conduit in a well |
| 06/09/2009 | CA2401723C Wireless communication using well casing |
| 06/09/2009 | CA2370176C Threaded connection with high compressive rating |
| 06/05/2009 | CA2615184A1 Scotia loc |
| 06/04/2009 | WO2009070483A1 Strake systems and methods |
| 06/04/2009 | WO2009068905A1 Flexible pipe |
| 06/04/2009 | WO2009051950A3 Systems and methods for reducing backward whirling while drilling |
| 06/04/2009 | WO2009048768A3 Modular connector and method |
| 06/04/2009 | US20090139772 Diametrically expanded groove cutting apparatus and expandable mechanism |
| 06/04/2009 | US20090139711 Tool String Threads |
| 06/03/2009 | EP2065551A2 Flexible pipe |
| 06/03/2009 | EP2064409A2 Coiled tubing wellbore drilling and surveying using a through the drill bit apparatus |
| 06/03/2009 | EP2064408A1 Centralizing device for an elongated body in a mouse hole machine |
| 06/03/2009 | EP1606526A4 Method for preventing critical annular pressure buildup |
| 06/03/2009 | CN201250618Y Magnetic support pumping rod centralizer |
| 06/03/2009 | CN201250617Y Wear prevention device of pumping rod |
| 06/03/2009 | CN201250616Y Drill rod-guiding device |
| 06/03/2009 | CN201250615Y Sucker rod columnar centralizer |
| 06/03/2009 | CN201250614Y Angle antifriction device of sucker rod |
| 06/03/2009 | CN201250613Y High pressure rapid connector |
| 06/03/2009 | CN201250612Y Extrusion forming down-hole drill rod |
| 06/03/2009 | CN101449023A Threaded joint for an oil-well tubing |
| 06/03/2009 | CN101449022A A rock-drilling tool, a drill rod and coupling sleeve |
| 06/03/2009 | CN101449021A A top hammer rock-drilling tool, a drill rod and coupling sleeve |
| 06/03/2009 | CN101446182A Pumping-improvement centralizer of pumping rod |
| 06/03/2009 | CN101446181A Novel centralizer for screwdrill |
| 06/03/2009 | CN101446180A Round blank for high-steel level oil bushing and manufacturing process |
| 06/03/2009 | CN100494622C Flexible pressurizing and damping device for drill bit |
| 06/03/2009 | CN100494621C Self-lubricating ferrous alloy spray-welding sucker rod joint |
| 06/03/2009 | CN100494620C Self-lubricating nickel base alloy spray-welding sucker rod loop |
| 06/02/2009 | US7541543 Cables |
| 06/02/2009 | CA2489589C Expandable centralizer for downhole tubulars |
| 06/02/2009 | CA2484623C Installation of downhole electrical power cable and safety valve assembly |
| 06/02/2009 | CA2399130C A method and apparatus for the optimal predistortion of an electromagnetic signal in a downhole communication system |
| 06/02/2009 | CA2350611C Tapered connector for a tubing string |
| 05/30/2009 | CA2645630A1 Electrified coiled tubing |
| 05/28/2009 | WO2009067619A1 Offshore coiled tubing deployment vessel |
| 05/28/2009 | WO2009065581A1 Flow diverter for drilling |
| 05/28/2009 | WO2009065578A1 Formation of flow conduits under pressure |
| 05/28/2009 | WO2009065574A2 Deployment of a wireline tool |
| 05/28/2009 | US20090133933 Method and device for drilling, particularly percussion or rotary percussion drilling, a hole in soil or rock material |
| 05/28/2009 | US20090133883 Method for retrofitting a downhole drill string with a flow through subassembly and method for making same |
| 05/27/2009 | EP2063068A1 Pipe and method of determining the shape of a pipe |
| 05/27/2009 | EP2061948A2 Capillary injector |
| 05/27/2009 | EP2061642A1 Dry fiber wrapped pipe |
| 05/27/2009 | CN201246117Y Bias-wearing-proof eddy flow centralizer |
| 05/27/2009 | CN201246116Y Steel plastic composite collar capable of detecting sleeve tube |
| 05/27/2009 | CN201246115Y Seal plug-in joint |
| 05/27/2009 | CN201246114Y Anti-friction and twist well drilling collar |
| 05/27/2009 | CN201246113Y Screw connection drill rod |
| 05/27/2009 | CN201246112Y Anti-drop righting pumping rod |
| 05/27/2009 | CN201246111Y Anti-drop weighted pumping rod |
| 05/27/2009 | CN201246110Y Down-hole drill head |
| 05/27/2009 | CN101443528A A female part and method for manufacturing a female part |
| 05/27/2009 | CN101443527A Steering systems for coiled tubing drilling |
| 05/27/2009 | CN101440451A Diamond composite material anti-wear material for drill pipe joint |
| 05/26/2009 | US7539548 Smart-control PLC based touch screen driven remote control panel for BOP control unit |
| 05/26/2009 | US7537416 Riser support system for use with an offshore platform |
| 05/26/2009 | US7537053 Downhole electrical connection |
| 05/26/2009 | CA2438807C Mono-diameter wellbore casing |
| 05/22/2009 | WO2009063163A1 Flexible pipe support |
| 05/22/2009 | WO2009063159A1 Method and apparatus for lowering a subsea structure between the surface and the seabed |
| 05/22/2009 | WO2009042494A3 Modular power source for subsurface systems |
| 05/21/2009 | US20090126943 Cable-Protective Pipe Section, a Method of Protectively Arranging at Least One Cable on the Outside of the Pipe Section and Use of a Device for Protecting the Cable |
| 05/21/2009 | US20090126942 High Pressure Insulated Electrical, Fiber and Tubing Feed-through Fitting Assembly |
| 05/21/2009 | US20090126937 Self-Standing Riser System Having Multiple Buoyancy Chambers |
| 05/20/2009 | EP1379753B1 Compliant buoyancy can guide |
| 05/20/2009 | CN201241678Y Hydrothermal type pumping rod apparatus |
| 05/20/2009 | CN201241635Y Projecting-proof drill rod |
| 05/20/2009 | CN201241634Y Bias-wearing-proof apparatus of pumping rod |
| 05/20/2009 | CN201241633Y Rotary centralizer |
| 05/20/2009 | CN201241632Y Spring self-switching type Y-shaped joint |
| 05/20/2009 | CN201241631Y Gas well salt-proof pipe column |