| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 05/28/2008 | CN201065736Y Rotary dredging driller drill rod detaching or assembling spring from bottom |
| 05/28/2008 | CN201065735Y Central cable type high intensity large through-hole drill rod |
| 05/28/2008 | CN201065734Y Multi-stage adjustable pump well polish rod and polish rod clamp |
| 05/28/2008 | CN101187296A Protective sleeve for threaded connections for expandable liner hanger |
| 05/28/2008 | CN101187295A Super high intensity anti-corrosion pumping rod production method |
| 05/28/2008 | CN101187294A Super H grade pumping rod |
| 05/28/2008 | CN101187293A Eccentric wear prevention pumping pipe string |
| 05/28/2008 | CN101187292A Supercritical heat-insulated oil pipe production method |
| 05/28/2008 | CN101187290A Non-dredging guiding driller dynamic head main spindle |
| 05/28/2008 | CN100390454C Premium tubular threaded joint comprising at least a threaded element with end lip |
| 05/27/2008 | US7378985 Communication system for down hole use |
| 05/27/2008 | US7377723 Systems and methods for the installation of earth anchors |
| 05/27/2008 | US7377339 System and method for damping vibration in a drill string |
| 05/27/2008 | US7377337 Downhole drilling tool |
| 05/27/2008 | US7377326 Magnetic impulse applied sleeve method of forming a wellbore casing |
| 05/27/2008 | US7377325 Centraliser |
| 05/27/2008 | US7377315 Complaint covering of a downhole component |
| 05/27/2008 | CA2469574C Improved transmission element for downhole drilling components |
| 05/27/2008 | CA2421414C Anti-rotation device for use in a borehole |
| 05/22/2008 | WO2008060893A2 Large bore packer and methods of setting same |
| 05/22/2008 | WO2008060212A1 A drilling tool, a self -drilling rock bolt, a drill bit, an ancoring device for a self -drilling rock bolt, a shaft for a drilling tool and an end coupling for a drilling tool |
| 05/22/2008 | WO2008022274B1 Control of flexible riser curvature at the keel of a floating structure |
| 05/22/2008 | WO2008015540A3 Articulated extraction pipe |
| 05/22/2008 | US20080115974 Steerable drilling system |
| 05/22/2008 | US20080115939 Radial Expansion of Tubular Members |
| 05/22/2008 | CA2665345A1 A drilling tool, a self-drilling rock bolt, a drill bit, an anchoring device for a self-drilling rock bolt, a shaft for a drilling tool and an end coupling for a drilling tool |
| 05/21/2008 | EP1923534A1 Steerable bit assembly and methods |
| 05/21/2008 | EP1733118B1 Clamping apparatus, drill string component and rock drilling rig |
| 05/21/2008 | EP1730386A4 Rotating systems associated with drill pipe |
| 05/21/2008 | DE202008004473U1 Bohrantriebseinheit für ein Doppelbohrgestänge Bohrantriebseinheit for a Doppelbohrgestänge |
| 05/21/2008 | CN201062509Y Pumping rod righting paraffin scraper |
| 05/21/2008 | CN201062494Y Casing drag-reduction adapter |
| 05/21/2008 | CN201062493Y Drill shank for rock-drilling |
| 05/21/2008 | CN201062492Y Split teeth wheel drill rod |
| 05/21/2008 | CN101184903A Drill stem connection |
| 05/21/2008 | CN101182757A Sidetracking petroleum case pipe for petroleum natural gas mining industry and production process thereof |
| 05/20/2008 | US7373990 Method and apparatus for expanding and separating tubulars in a wellbore |
| 05/20/2008 | US7373974 Downhole release tool and method |
| 05/20/2008 | CA2401866C Method of assembling pipe joints |
| 05/15/2008 | WO2008056185A2 Hybrid riser tower and methods of installing same |
| 05/15/2008 | US20080111375 Pipe joint |
| 05/15/2008 | US20080110677 Conveyor Tube For Use In Installing Or Replacing A Well Tool In A Producing Well And Procedures For Use Of The Same |
| 05/15/2008 | US20080110636 Casing shoe |
| 05/15/2008 | US20080110616 Composite Tubular Structure |
| 05/15/2008 | CA2840725A1 Offshore universal riser system |
| 05/15/2008 | CA2765069A1 Method of drilling using an offshore riser |
| 05/14/2008 | EP1497526B1 Bi-directional thruster pig apparatus and method of utilizing same |
| 05/14/2008 | EP1045958B1 A drill pipe and method of forming and reconditioning a drill pipe |
| 05/14/2008 | CN201059170Y Screw pump sucker rod metal centralizer |
| 05/14/2008 | CN201059169Y Sucker rod elastic centralizer |
| 05/14/2008 | CN201059168Y Slide-lock type centralizer |
| 05/14/2008 | CN201059167Y Round spindle telescopic joint |
| 05/14/2008 | CN201059166Y Highly torsion-resistant joint |
| 05/14/2008 | CN201059165Y Hollow pole antiwear coupling |
| 05/14/2008 | CN201059164Y Novel torsion-resistant disconnecting-proof pumping rod |
| 05/14/2008 | CN201059163Y Antiseptic abrasion-proof compound oil pipe |
| 05/14/2008 | CN101178001A Super H-grade antiseptic smooth sucker rod |
| 05/14/2008 | CN101177763A Super strength pumping rod steel |
| 05/13/2008 | US7371289 Cleaning and doping of tubulars |
| 05/13/2008 | US7370708 Seal arrangement |
| 05/13/2008 | US7370705 Multiple zone downhole intelligent flow control valve system and method for controlling commingling of flows from multiple zones |
| 05/13/2008 | US7370700 Multiple entrance shunt |
| 05/13/2008 | CA2448723C Variable gauge drilling apparatus and method of assembly thereof |
| 05/08/2008 | WO2008053203A1 Downhole apparatus and method of forming the same |
| 05/07/2008 | EP1917416A1 Installation comprising at least two seafloor-surface connectors for at least two submarine pipelines resting on the seafloor |
| 05/07/2008 | EP1774133B1 Method and device to clamp control lines to tubulars |
| 05/07/2008 | CN201056997Y Self-rotation machine of pumping rod |
| 05/07/2008 | CN201056996Y Sleeve type helical centralizer for special lever of screw pump well |
| 05/07/2008 | CN201056995Y Telescopic compensation vibration absorber of oil pumping rod |
| 05/07/2008 | CN201056994Y Hydraulic inverse-buckling safety joint |
| 05/07/2008 | CN201056993Y Double-hook type thread coupling buckle |
| 05/07/2008 | CN201056992Y Internal thread stress-relief groove of drill collar |
| 05/07/2008 | CN201056991Y Special screwed joint of petroleum sleeve pipe |
| 05/07/2008 | CN201056990Y Sucker-rod coupling with bidirectional cambered surface protection |
| 05/07/2008 | CN201056989Y Tungsten plated amorphous alloy corrosion-proof oil pipe |
| 05/07/2008 | CN101173607A Disjointing controllable multi-layer fracturing tubular pile device of sandblaster and method for controlling disjointing |
| 05/07/2008 | CN101173606A Controllable disjoint sandblaster |
| 05/06/2008 | US7367750 Riser installation vessel and method of using the same |
| 05/06/2008 | US7367404 Tubing seal |
| 05/06/2008 | US7367398 Device for heating and thermally insulating at least one undersea pipeline |
| 05/06/2008 | CA2456650C Locking arrangement for a threaded connector |
| 05/06/2008 | CA2427453C Hydraulic running tool with torque dampener |
| 05/02/2008 | WO2008051341A1 Reinforced polymeric siphon tubes |
| 05/02/2008 | WO2008051090A1 Mooring system for a loading station |
| 05/02/2008 | WO2008050127A1 Electrical connector with pressure seal |
| 05/02/2008 | CA2667282A1 Electrical connector with pressure seal |
| 05/02/2008 | CA2662896A1 Reinforced polymeric siphon tubes |
| 05/01/2008 | US20080100064 Protective Compression and Tension Sleeves for Threaded Connections for Radially Expandable Tubular Members |
| 05/01/2008 | US20080099245 Cam Assembly in a Downhole Component |
| 05/01/2008 | US20080099242 Drill stem coupling and method for a directional drill |
| 05/01/2008 | US20080099210 Disconnect apparatus and method |
| 05/01/2008 | US20080099195 Method and apparatus for isolating and testing zones during reverse circulation drilling |
| 04/30/2008 | EP1915505A1 Method and device for releasing a block on a bore-crown during a boring process |
| 04/30/2008 | EP1915504A1 Bi-directional drill string telemetry system for measurement and drilling control |
| 04/30/2008 | EP1787006B1 Method for drilling oil and gas wells |
| 04/30/2008 | CN201053298Y Dust-proof water-injection type screwy reclaiming anchor bar drill pipe |
| 04/30/2008 | CN201053297Y Non-rotating drag reduction low-torsion drill rod protector |
| 04/30/2008 | CN101169031A Petroleum drilling well drilling tool spherical flexible joint |
| 04/30/2008 | CN101169030A Method for preparing magnetic scale-inhibiting wax-proof antisepsis oil pipe used for oil field |
| 04/30/2008 | CN101168794A Long thick wall petroleum drilling and mining steel pipe heat treatment technique |