| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 12/24/2008 | CN201170062Y Oil manifold uncoupling machine |
| 12/24/2008 | CN101328559A Steel for low yield ratio petroleum case pipe, petroleum case pipe and manufacturing method thereof |
| 12/24/2008 | CN100445354C Threaded component for seizure-resistant tubular threaded joint |
| 12/24/2008 | CA2692233A1 Flow restrictor coupling |
| 12/24/2008 | CA2691146A1 Control line running system |
| 12/23/2008 | US7467914 Apparatus and method for supporting a steel catenary riser |
| 12/23/2008 | US7467908 Fluid dispenser assembly |
| 12/23/2008 | US7467671 Drill bit with protection member |
| 12/23/2008 | CA2547608C Rotationally locked wear sleeve for through-tubing drilling and completion |
| 12/23/2008 | CA2499226C Multi-lateral wellbore systems and methods for forming same |
| 12/23/2008 | CA2490359C Helically wound expandable tubular insert |
| 12/23/2008 | CA2456079C Locking swivel apparatus with replaceable internal gear members |
| 12/23/2008 | CA2455518C Tubing expansion |
| 12/23/2008 | CA2306047C Improved composite drill pipe |
| 12/18/2008 | WO2008152505A1 Disconnectable riser-mooring system |
| 12/18/2008 | WO2008152372A2 Apparatus for and method of protecting an umbilical |
| 12/18/2008 | WO2008152289A2 Bottom-surface linking equipment including a flexible link between a floating support and the upper end of an under-surface rigid duct |
| 12/18/2008 | WO2008152288A2 Bottom-surface connection installation comprising an elastic damping device absorbing the tension of the top end of a rigid subsurface pipe |
| 12/18/2008 | US20080308280 Coiled Tubing and Power Cables |
| 12/17/2008 | EP2003287A2 Casing data relay |
| 12/17/2008 | EP2002165A1 Tubular threaded joint |
| 12/17/2008 | EP1540129B1 Downhole drill string having a collapsible subassembly |
| 12/17/2008 | EP0907822B1 Method for expanding a steel tubing and well with such as tubing |
| 12/17/2008 | CN201165971Y Blowout prevention pressure relief high strength large pump uncoupling machine |
| 12/17/2008 | CN201165866Y Horizontal well division and combination extracting pipe column |
| 12/17/2008 | CN201165853Y Inner lining slide shaft bushing sucker-rod pumping rod fork pocket twist and clip centralizer |
| 12/17/2008 | CN201165852Y Integral non-coupling casing tube with end body molding |
| 12/17/2008 | CN201165851Y Self-adjusting anti-wear protection sucker rod coupling |
| 12/17/2008 | CN201165850Y Rotary digging drill rod with arcuated internal key welding transmission perforated pipe |
| 12/17/2008 | CN201165848Y Hole digger drill head |
| 12/17/2008 | CN101324176A Spring self-switching type Y-shaped joint |
| 12/17/2008 | CN100443692C Radially adjustable downhole devices & methods for the same |
| 12/16/2008 | US7464449 Method of forming a high-strength sealed connection for expandable tubulars |
| 12/16/2008 | CA2398589C Pad plunger assembly with concave pad subassembly |
| 12/16/2008 | CA2362522C Method of making a conductive downhole wire line system |
| 12/11/2008 | WO2008150207A1 Rock-drilling equipment as well as female and male parts therefor |
| 12/11/2008 | WO2008149098A2 Drilling apparatus with a pilot hole drilling assembly |
| 12/11/2008 | WO2008149074A1 Cable protector |
| 12/11/2008 | US20080304904 Thread Joint |
| 12/11/2008 | US20080303266 Coupling apparatus |
| 12/11/2008 | US20080302574 Drill stem and method |
| 12/11/2008 | US20080302537 Dimpled riser floatation module |
| 12/11/2008 | US20080302534 Full bore lined wellbores |
| 12/11/2008 | US20080302527 String Mounted Hydraulic Pressure Generating Device for Downhole Tool Actuation |
| 12/11/2008 | CA2696789A1 Drilling apparatus |
| 12/11/2008 | CA2687544A1 Rotary drill bit with gage pads having improved steerability and reduced wear |
| 12/11/2008 | CA2685254A1 Rock-drilling equipment as well as female and male parts therefor |
| 12/11/2008 | CA2591888A1 Threaded connection |
| 12/10/2008 | EP2000629A1 High strength threaded joint, particularly for lined tubes |
| 12/10/2008 | EP2000628A2 Bend Stiffener |
| 12/10/2008 | EP1502002B1 Well completion with merged influx of well fluids |
| 12/10/2008 | CN201162502Y Sliding bush type sucker rod centralizer |
| 12/10/2008 | CN201162501Y Sliding bush of pumping rod centralizer |
| 12/10/2008 | CN201162500Y Screw connection structure of non-node hoop expansion screen casing |
| 12/10/2008 | CN201162499Y Thread connector of expansion sand-prevention screening tube |
| 12/10/2008 | CN201162498Y Splicing mechanism of expansion prick |
| 12/10/2008 | CN201162497Y Anti-dropping centralizing abrasion-proof pumping rod for horizontal well |
| 12/10/2008 | CN201162496Y Surface vulcanized petroleum drilling tool |
| 12/10/2008 | CN201162489Y Full screw earth auger |
| 12/10/2008 | CN101321925A Cutting rod, cutting bit and cutting tool |
| 12/10/2008 | CN101319499A Pile forming method and device for screwed pedestal pile with large flow concrete filled by hole drilling pump |
| 12/10/2008 | CN101319292A High ductility N80 oil casing tube and manufacturing method |
| 12/10/2008 | CN100441739C Method for treating screw pump two-way protective coupling surface |
| 12/09/2008 | US7461691 In situ recovery from a hydrocarbon containing formation |
| 12/09/2008 | US7461561 Apparatuses and methods for monitoring stress in steel catenary risers |
| 12/09/2008 | CA2528473C Method and apparatus for deploying a line in coiled tubing |
| 12/09/2008 | CA2502521C Riser installation vessel and method of using the same |
| 12/09/2008 | CA2442088C Pressure compensating apparatus and method for downhole tools |
| 12/05/2008 | CA2632820A1 High strength threaded joint, particularly for lined tubes |
| 12/04/2008 | WO2008145950A1 Orientation sensor for downhole tool |
| 12/04/2008 | WO2008107855A3 Downhole load cell |
| 12/04/2008 | WO2008033738A3 Coiled tubing wellbore drilling and surveying using a through the drill bit apparatus |
| 12/04/2008 | US20080296894 Oilfield threaded connections |
| 12/04/2008 | US20080296067 Adjustable Winged Centering Tool for Use In Pipes With Varying Diameter |
| 12/04/2008 | CA2688329A1 Orientation sensor for downhole tool |
| 12/03/2008 | CN201159156Y Upper body of oil pump connector |
| 12/03/2008 | CN201159073Y Natural gas down-hole dropping equipment |
| 12/03/2008 | CN201159057Y Elastic centralizer |
| 12/03/2008 | CN201159056Y Oil tube abrasion-proof device |
| 12/03/2008 | CN201159055Y Waterproof casing fixed wedge shoe with locking device |
| 12/03/2008 | CN201159054Y Expansible screw connection mechanism |
| 12/03/2008 | CN201159053Y End main body shaping integral joint tubing |
| 12/03/2008 | CN201159052Y Tungsten alloy corrosion protection oil pumping lever |
| 12/03/2008 | CN201159047Y Drill pipe |
| 12/03/2008 | CN101316557A Flexible hollow shaft |
| 12/03/2008 | CN101315022A Stone oil tool joint capable of transferring electric power and signal |
| 12/03/2008 | CN101315020A Extendable excavating screw with hydraulic excavating blades |
| 12/02/2008 | US7458752 Suppression element for vortex-induced vibrations |
| 12/02/2008 | US7458267 Acoustic emission inspection of coiled tubing |
| 11/27/2008 | WO2008144249A2 Expandable centralizer for expandable pipe string |
| 11/27/2008 | WO2008144243A1 Low -clearance centralizer and method of making centralizer |
| 11/27/2008 | WO2008143577A1 A device for drilling in earth-layers and rock |
| 11/27/2008 | WO2008042945A3 Wellbore casing and method of forming same |
| 11/27/2008 | US20080291048 Use of flexible member for borehole diameter measurement |
| 11/27/2008 | US20080289879 Connection Assembly For Drill Collars or Heavy Drill Pipes |
| 11/27/2008 | US20080289814 Solid Expandable Tubular Members Formed From Very Low Carbon Steel and Method |
| 11/27/2008 | DE202008012210U1 Gewindeverbindung Threaded connection |
| 11/27/2008 | CA2687495A1 Expandable centralizer for expandable pipe string |
| 11/27/2008 | CA2686668A1 Low-clearance centralizer and method of making centralizer |
| 11/26/2008 | EP1994253A1 Tube protection with plugged tube cladding |