| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 03/31/2010 | CN201433722Y High-pressure quick connector |
| 03/31/2010 | CN201433714Y Water well drilling machine |
| 03/30/2010 | US7688210 Electronic ID tag and co-operating antenna |
| 03/30/2010 | US7686544 Method and arrangement by a workover riser connection |
| 03/30/2010 | US7686087 Rapid makeup drilling riser |
| 03/30/2010 | CA2444815C Torque-generating apparatus |
| 03/25/2010 | WO2010032018A2 Apparatus for use in top filling of tubulars and associated methods |
| 03/25/2010 | WO2010031223A1 A drill apparatus and a method of making the tool joint of a drill apparatus |
| 03/25/2010 | WO2009153462A3 Dismountable connector for an undersea petroleum plant |
| 03/25/2010 | WO2009131464A3 High pressure sleeve for dual bore hp riser |
| 03/25/2010 | US20100074693 Battered column offshore platform |
| 03/25/2010 | US20100071892 Coiled Tubing Quick Connect |
| 03/25/2010 | US20100071188 Wired drill pipe having conductive end connections |
| 03/25/2010 | DE112008000391T5 Dichte Gewindeverbindung für Erdölrohre Density threaded joint for oil pipes |
| 03/24/2010 | EP2165043A2 Tear cord for jacketed tube |
| 03/24/2010 | EP2165041A2 Apparatus for and method of protecting an umbilical |
| 03/24/2010 | EP2165040A1 Improved well intervention system |
| 03/24/2010 | EP2165039A1 A device for drilling in earth-layers and rock |
| 03/24/2010 | CN201428400Y Casing protection device for drilling |
| 03/24/2010 | CN201428399Y Casting type anti-cracking centralizer of pumping rod |
| 03/24/2010 | CN201428398Y Anti-corrosion sleeve of casting pipe |
| 03/24/2010 | CN201428397Y Polish rod centralizer of oil extractor |
| 03/24/2010 | CN201428396Y Wear reducer for oil well tubing and sucker rods |
| 03/24/2010 | CN201428395Y Ball-injection-free pressure building joint |
| 03/24/2010 | CN201428394Y Anti-dropping joint device of screw bolt drilling tool |
| 03/24/2010 | CN201428393Y Anti-friction joint |
| 03/24/2010 | CN201428392Y Gas drainage drill stem and interconnection component thereof |
| 03/24/2010 | CN201428391Y Novel drill rod for downhole drill rig |
| 03/24/2010 | CN201428390Y Coal-cutting drilling tool |
| 03/24/2010 | CN201428389Y Anti-wear pair for sucker rods |
| 03/24/2010 | CN201428388Y Vacuumized continuous tube |
| 03/24/2010 | CN201428387Y Energy-saving oil pump |
| 03/24/2010 | CN201428386Y Expansion string for casing damaged well |
| 03/24/2010 | CN101680584A Pressure isolation system for flexible pipe joints |
| 03/24/2010 | CN101680278A System for drilling a wellbore |
| 03/24/2010 | CN101680277A Stroker tool |
| 03/24/2010 | CN101680276A Rod coupling comprising a sacrificial element |
| 03/24/2010 | CN101680275A Rod coupling comprising a pin |
| 03/24/2010 | CN101680274A Rock-drilling equipment as well as female and male parts therefor |
| 03/23/2010 | US7681637 Self-orienting guide shoe |
| 03/23/2010 | CA2539097C Steerable bit assembly and methods |
| 03/23/2010 | CA2514195C Drilling assembly and method |
| 03/23/2010 | CA2448085C Radially expandable tubular with supported end portion |
| 03/18/2010 | WO2010030784A1 Auger boring machine |
| 03/18/2010 | WO2010030160A1 A offshore seabed to surface conduit transfer system |
| 03/18/2010 | WO2010029322A2 A riser connector |
| 03/18/2010 | WO2010028809A2 Threaded connection |
| 03/18/2010 | WO2010011251A3 Tear cord for jacketed tube |
| 03/18/2010 | WO2009111434A3 Telescopic fracturing isolation sleeve |
| 03/18/2010 | US20100065333 Drill bit shaft structure for excavation apparatus |
| 03/18/2010 | US20100065284 Cable duct device in a swelling packer |
| 03/18/2010 | US20100065264 Rotor underreamer, section mill, casing cutter, casing scraper and drill string centralizer |
| 03/18/2010 | DE102008047060A1 Gewindeverbindung Threaded connection |
| 03/18/2010 | CA2737029A1 A riser connector |
| 03/17/2010 | EP2163722A1 Method and apparatus for supporting tubulars |
| 03/17/2010 | CN101672166A Tri-dimensional sealed tensile oil sleeve joint |
| 03/17/2010 | CN101672165A Stretching-resisting bending-resisting double-sealed oil sleeve joint |
| 03/17/2010 | CN101671438A Titanium and nano fluorine-containing poly (aryl ether ketone) copolymer, coating made thereof and manufacturing method thereof |
| 03/17/2010 | CN100594287C In-situ hydrogen treatment method of to heated hydrocarbon containing fluid |
| 03/16/2010 | US7677439 Process and assembly for identifying and tracking assets |
| 03/16/2010 | US7677321 Expandable tubulars for use in geologic structures, methods for expanding tubulars, and methods of manufacturing expandable tubulars |
| 03/16/2010 | US7677302 Spoolable connector |
| 03/15/2010 | CA2639679A1 Adjustable bent housing with rotational stop |
| 03/11/2010 | WO2010028317A1 Shrouded tubular |
| 03/11/2010 | WO2010028158A1 System and method for retaining an element |
| 03/11/2010 | WO2010027850A1 Coil tubing guide |
| 03/11/2010 | WO2010027616A2 Electrical transmission between rotating and non-rotating members |
| 03/11/2010 | WO2010026373A1 Connector for tubular |
| 03/11/2010 | WO2010025741A1 Parallel electric submersible pumping system |
| 03/11/2010 | WO2009158066A3 Resettable antiextrusion backup system and method |
| 03/11/2010 | WO2009156708A3 Pipe connector device |
| 03/11/2010 | WO2009143300A3 System and method for providing a downhole mechanical energy absorber |
| 03/11/2010 | WO2009020395A3 Actuator device |
| 03/11/2010 | US20100059285 Top hammer rock-drilling tool, a drill rod coupling sleeve |
| 03/11/2010 | US20100059232 System and method for retaining an element |
| 03/11/2010 | US20100059218 Downhole apparatus and method of forming the same |
| 03/10/2010 | CN201420514Y Watertight conduit pipe shoe |
| 03/10/2010 | CN201420513Y Casing protecting tube for drill pipe |
| 03/10/2010 | CN201420512Y Threaded connecting piece capable of bearing high torque as well as cementing rotary casing and collar employing same |
| 03/10/2010 | CN201420511Y Wear-resistant sucker rod coupling |
| 03/10/2010 | CN201420510Y Horizontal well knuckle |
| 03/10/2010 | CN201420509Y Pup joint device for feeding upper part of riser pipe under simulation spray method |
| 03/10/2010 | CN201420508Y Segmented combined hollow sucker rod |
| 03/10/2010 | CN201420507Y Irregular polygon grooving drill rod |
| 03/10/2010 | CN201420265Y Deviation prevention device for upper part of riser pipe in pile driving |
| 03/10/2010 | CN101668923A Oilfield threaded connection |
| 03/10/2010 | CN101666215A Sleeve pipe tieback device |
| 03/10/2010 | CN100593625C Central cable type high-strength large-through-hole rod |
| 03/09/2010 | US7673708 Ball-activated mechanism for controlling the operation of a downhole tool |
| 03/09/2010 | US7673707 Drilling apparatus and system for drilling wells |
| 03/09/2010 | US7673682 Well casing-based geophysical sensor apparatus, system and method |
| 03/04/2010 | WO2010025313A2 Drilling out casing bits with other casing bits |
| 03/04/2010 | WO2010022755A1 Drill pipe protector assembly |
| 03/04/2010 | WO2009151768A3 Backoff sub and method for remotely backing off a target joint |
| 03/04/2010 | CA2735667A1 Drill pipe protector assembly |
| 03/04/2010 | CA2735323A1 Composite tubular product |
| 03/04/2010 | CA2734977A1 Drilling out casing bits with other casing bits |
| 03/03/2010 | EP2158379A2 Expandable centralizer for expandable pipe string |
| 03/03/2010 | EP2158378A1 Low -clearance centralizer and method of making centralizer |
| 03/03/2010 | CN201416395Y Suspension type oil pumping well polished rod lubricator |