| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 03/28/2006 | US7019665 Polished downhole transducer having improved signal coupling |
| 03/28/2006 | US7017950 Expandable connection |
| 03/28/2006 | US7017682 Drill string shutoff valve |
| 03/28/2006 | US7017667 Drill string transmission line |
| 03/28/2006 | US7017666 Smooth sleeves for drag and VIV reduction of cylindrical structures |
| 03/28/2006 | CA2481609A1 Threaded connection for drill pipes |
| 03/28/2006 | CA2260540C Downhole connector for production tubing and control line and method |
| 03/28/2006 | CA2167857C Running tool |
| 03/23/2006 | US20060061099 Method for sealing radially expanded joints |
| 03/23/2006 | US20060060388 Rock drill bit and a thread joint therefor |
| 03/23/2006 | US20060060386 Pile boring tool for producing a pile bore |
| 03/23/2006 | US20060060366 Variable speed drill |
| 03/23/2006 | CA2580506A1 Cover for expandable connections |
| 03/22/2006 | EP1399642B8 Centering device |
| 03/22/2006 | CN2766026Y Leakproof oil tube anchor |
| 03/22/2006 | CN2766025Y Pumping rod guide apparatus |
| 03/22/2006 | CN2766024Y Liner tube type telescopic pipe for whole stroke torsional moment transmission |
| 03/22/2006 | CN1751190A Centrifugal applicator |
| 03/22/2006 | CN1751168A Radially adjustable downhole devices & methods for the same |
| 03/21/2006 | US7014223 Screw threaded joint for continuous-profile tubes |
| 03/21/2006 | US7014100 Process and assembly for identifying and tracking assets |
| 03/21/2006 | US7013992 Borehole stabilization while drilling |
| 03/21/2006 | US7013977 Sealed connectors for automatic gun handling |
| 03/16/2006 | WO2006029379A1 Control systems and methods for active controlled bottomhole pressure systems |
| 03/16/2006 | WO2006027541A1 Method for drilling oil and gas wells |
| 03/16/2006 | WO2005111367A8 Highly sealing screw joint for oilfield tubes (variants) and method for producing a screw joint therefor (variants) |
| 03/16/2006 | US20060056918 Riser system connecting two fixed underwater installations to a floating surface unit |
| 03/16/2006 | CA2578367A1 Hydraulically operated protector for downhole devices |
| 03/16/2006 | CA2575603A1 Method for drilling oil and gas wells |
| 03/15/2006 | EP1635035A1 Hydraulically operated protection for downhole devices |
| 03/15/2006 | EP1635034A1 Structural member bend radius and shape sensor and measurement apparatus |
| 03/15/2006 | EP1436485B1 Apparatus and methods for remote installation of devices for reducing drag and vortex induced vibration |
| 03/15/2006 | CN2764932Y Automatic leak-proof valve with kelly bar |
| 03/15/2006 | CN2764924Y Integral casting type pumping rod wear resistant device |
| 03/15/2006 | CN2764923Y Double shoulder hermetic sealing drill pipe joint |
| 03/15/2006 | CN2764922Y Double shoulder metal hermetic sealing drill pipe joint |
| 03/15/2006 | CN2764921Y Double protection wear-resistant pump rod joint |
| 03/15/2006 | CN1746277A Composition for lubricating-film formation suitable for lubrication of screw joint. |
| 03/14/2006 | US7011344 Connector and method of use of the connector |
| 03/14/2006 | US7011167 Device for sealing a drill hole and for discharging drillings or stripped extraction material |
| 03/14/2006 | US7011162 Hydraulically activated swivel for running expandable components with tailpipe |
| 03/14/2006 | US7011161 Structural support |
| 03/14/2006 | US7011153 Hydraulically released inflation tool for permanent bridge plug |
| 03/14/2006 | CA2432258C Floating instrument insert for a tool |
| 03/14/2006 | CA2381528C Bit connector |
| 03/14/2006 | CA2329472C Decentralizing, centralizing, locating and orienting subsystems and methods for subterranean multilateral well drilling and completion |
| 03/14/2006 | CA2318562C Conductive medium for openhole logging and logging while drilling |
| 03/14/2006 | CA2239734C Fluid drilling system |
| 03/09/2006 | WO2006025744A1 Safety joint device for a pipe |
| 03/09/2006 | WO2006025026A1 A drill rod |
| 03/09/2006 | US20060051164 Jackup oil rig and similar platforms |
| 03/09/2006 | US20060048971 Welded joints for rotary-vibratory drills having reduced stress |
| 03/09/2006 | US20060048950 Well packer for a pipe string and a method of leading a line past the well packer |
| 03/09/2006 | US20060048940 Automatic Tool Release |
| 03/09/2006 | US20060048939 Method for construction and completion of injection wells |
| 03/09/2006 | US20060048935 Casing with isolated annular space |
| 03/09/2006 | US20060048934 Agitator tool |
| 03/08/2006 | EP1632639A2 Downhole tool |
| 03/08/2006 | EP1631762A1 Threaded joint for steel pipes |
| 03/08/2006 | EP1512152A4 Method and apparatus for mwd formation testing |
| 03/08/2006 | EP1501999B1 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 |
| 03/08/2006 | EP1497526A4 Bi-directional thruster pig apparatus and method of utilizing same |
| 03/08/2006 | EP1466069A4 Downhole assembly releasable connection |
| 03/08/2006 | EP1463870A4 System and method for lessening impact on christmas trees during downhole operations involving christmas trees |
| 03/08/2006 | EP1330589B1 Rock drilling machine |
| 03/08/2006 | EP1123454B1 System, apparatus, and method for installing control lines in a well |
| 03/08/2006 | CN2763509Y Sand holding leather cup with pressure transmission function |
| 03/08/2006 | CN2763503Y Wet joint assembly of hole logging |
| 03/08/2006 | CN2763495Y Low frequency cable free heater for sucker rod |
| 03/08/2006 | CN2763485Y Core compensated integral base seal casing head |
| 03/08/2006 | CN2763474Y Drop-proof wearing-resisting centrilizer |
| 03/08/2006 | CN2763473Y Centrilizer for fork pocket of sucket rod |
| 03/08/2006 | CN2763472Y Stabilizer for diamond drill |
| 03/08/2006 | CN2763471Y Centrilizer for logging weighing |
| 03/08/2006 | CN2763470Y Hydraulic connecting-tripping device |
| 03/08/2006 | CN2763469Y Thread gluing resisting air-tighting casing joint |
| 03/08/2006 | CN2763468Y Directional sub for side drilling in casing opening |
| 03/08/2006 | CN2763467Y Section alloy round steel |
| 03/08/2006 | CN2763466Y Magnetic marked oil well pipe or sucker rod |
| 03/08/2006 | CN2763465Y Magnetic marked oil well pipe and sucker rod |
| 03/08/2006 | CN1743640A Oil well electric pump separate-extraction intelligent joint |
| 03/07/2006 | US7008141 Collapsible buoyancy device for risers on offshore structures |
| 03/07/2006 | US7007756 Providing electrical isolation for a downhole device |
| 03/07/2006 | US7007753 Top drive swivel apparatus and method |
| 03/07/2006 | CA2415488C Apparatus and methods for orientation of a tubular string in a non-vertical wellbore |
| 03/02/2006 | WO2006023307A1 Rat hole bypass for gravel packing assembly |
| 03/02/2006 | WO2006022418A1 Threaded joint for steel pipes |
| 03/02/2006 | US20060042798 Casing shoes and methods of reverse-circulation cementing of casing |
| 03/01/2006 | EP1501644A4 Protective sleeve for threaded connections for expandable liner hanger |
| 03/01/2006 | EP1088150B1 Drill rod coupling |
| 03/01/2006 | CN2761834Y Blow-out prevention valve during drilling |
| 03/01/2006 | CN2761816Y Drill collar for oil drilling |
| 03/01/2006 | CN2761815Y Spiral drill column drag reducer |
| 03/01/2006 | CN2761814Y Slide bearing oil pumping rod wear-proof device embedded with solid lubricant |
| 03/01/2006 | CN2761813Y Bias wear proof anti-friction protector of oil pumping machine |
| 03/01/2006 | CN2761812Y Long service life stabilizer of deep well and superdeep well |
| 03/01/2006 | CN2761811Y Measuring device of underwell drill pressure |
| 03/01/2006 | CN2761810Y Biwall drill rod for petroleum well drilling |
| 02/28/2006 | US7004266 Adjustable downhole tool |
| 02/28/2006 | US7004263 Directional casing drilling |