| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
|---|
| 11/03/2009 | CA2470610C Tubing connector |
| 11/03/2009 | CA2452903C Apparatus and method of drilling with casing |
| 11/03/2009 | CA2401707C Electro-hydraulically pressurized downhole valve actuator |
| 10/30/2009 | CA2646968A1 Drive shaft assembly for a downhole motor |
| 10/29/2009 | WO2009132301A1 Rotating drill pipe protector attachment and fastener assembly |
| 10/29/2009 | WO2009130440A2 Adjustable length discharge joint for high pressure applications |
| 10/29/2009 | WO2009030925A3 A downhole assembly |
| 10/29/2009 | US20090266618 Rotating drill pipe protector attachment and fastener assembly |
| 10/29/2009 | US20090266616 Connection device for forming a fluid supply |
| 10/29/2009 | US20090266615 Bi-steel percussive drill rod |
| 10/29/2009 | US20090266537 Combination injection string and distributed sensing string for well evaluation and treatment control |
| 10/29/2009 | US20090266535 Flexible coupling for well logging instruments |
| 10/29/2009 | CA2722096A1 Method of controlling torque applied to a tubular connection |
| 10/28/2009 | EP2112323A1 Top feed of control lines to a reciprocating spider |
| 10/28/2009 | CN101567245A Down-hole casing tube demagnetizer and using method thereof |
| 10/28/2009 | CN101566050A Oil pumping pipe rod friction reducing device |
| 10/28/2009 | CN101566049A Irregularly shaped multi-land notch groove drill rod |
| 10/28/2009 | CN101566048A Bi-steel percussive drill rod |
| 10/28/2009 | CN101566047A Concentric oil tubes |
| 10/27/2009 | US7607477 Optical wet connect |
| 10/27/2009 | CA2454067C Connecting an anchoring rod to a drilling tool |
| 10/23/2009 | CA2658539A1 System and method for deploying optical fiber |
| 10/22/2009 | WO2009129522A1 Double pin connector and hydraulic connect with seal assembly |
| 10/22/2009 | WO2009128725A1 Sz-laid aluminium power umbilical |
| 10/22/2009 | WO2009004337A3 Improved damping apparatus |
| 10/22/2009 | US20090260892 Drill rod, drill bit, and drilling tool |
| 10/22/2009 | US20090260876 Multiple Distributed Force Measurements |
| 10/22/2009 | US20090260834 Intervention Rod |
| 10/22/2009 | US20090260802 Centralizer for tubular elements |
| 10/21/2009 | CN201330569Y Sucker rod vibration-reduction rotary device |
| 10/21/2009 | CN201330568Y A sealing short section inside a pipe |
| 10/21/2009 | CN201330567Y A rotary joint assembly for rotating cementing |
| 10/21/2009 | CN201330566Y An anti-drop pumping rod capable of connecting shoulder conical surface directly |
| 10/21/2009 | CN101560874A Changeable combined layer separate-layer oil extraction technological process and separate-layer combination oil extraction process tubular column |
| 10/20/2009 | US7606682 Oilfield equipment identification method and apparatus |
| 10/20/2009 | US7604059 Downhole tools |
| 10/20/2009 | US7603758 Method of coupling a tubular member |
| 10/20/2009 | CA2508374C Insulative gap sub assembly and methods |
| 10/20/2009 | CA2402163C Tracer injection in a production well |
| 10/20/2009 | CA2401681C Controlled downhole chemical injection |
| 10/20/2009 | CA2393754C Drilling bit for drilling while running casing |
| 10/20/2009 | CA2354900C Apparatus and methods for isolating a wellbore junction |
| 10/16/2009 | CA2662605A1 A centralizer for tubular elements manufactured from two materials and a process of manufacturing said centralizer |
| 10/15/2009 | WO2009126429A2 Kinetic energy harvesting in a drill string |
| 10/15/2009 | WO2009124334A1 Riser support |
| 10/15/2009 | US20090255667 Crossover Sub with Erosion Resistant Inserts |
| 10/14/2009 | EP2108781A2 Force balanced stabilizer |
| 10/14/2009 | EP2108780A1 Hybrid drilling method |
| 10/14/2009 | EP1472432B1 Method and arrangement by a workover riser connection |
| 10/14/2009 | CN201326388Y Centralizer for 5-inch woven welded casing |
| 10/14/2009 | CN201326387Y Drilling tool centralizer |
| 10/14/2009 | CN201326386Y Helical centering edge |
| 10/14/2009 | CN201326385Y Oil pipe screw sealer |
| 10/14/2009 | CN201326384Y Integral autostyly non-excavating drill rod |
| 10/14/2009 | CN201326383Y Downhole tubing lined with stainless steel |
| 10/14/2009 | CN101558215A Drill pipe with tool joints |
| 10/14/2009 | CN101555798A Reverse puncher and method for using the puncher for implementing PBA side pile construction |
| 10/14/2009 | CN101555772A Roof delamination monitoring transducer |
| 10/14/2009 | CN101555771A Combined flow-increasing connector for marine drilling riser |
| 10/14/2009 | CN101555552A Manufacture method of square-head drill pipe and electroslag furnace crystallizer used in manufacture process |
| 10/14/2009 | CN100549361C Centering paraffin scraper for sucker rod |
| 10/14/2009 | CN100549357C Multifunction rotary disc speed reducing box |
| 10/13/2009 | US7600945 Vacuum formed cladding |
| 10/13/2009 | US7600587 Wear resistant sleeve for sub assembly |
| 10/13/2009 | US7600582 Sonde housing |
| 10/13/2009 | CA2524681C Electrical transmission apparatus through rotating tubular members |
| 10/13/2009 | CA2413444C Aluminium riser apparatus, system and method of manufacturing |
| 10/08/2009 | WO2009122166A2 Complex pipe monitoring |
| 10/08/2009 | WO2009122133A1 Improved tubing section coupling |
| 10/08/2009 | WO2009101279A3 Riser pipe segment with flanged auxiliary ducts and bayonet connections |
| 10/08/2009 | WO2008050127A9 Electrical connector with pressure seal |
| 10/08/2009 | CA2719492A1 Improved tubing section coupling |
| 10/07/2009 | CN201322148Y High performance oil pipe hermetic seal threaded connection structure |
| 10/07/2009 | CN201322147Y Connection structure for small-clearance collar and casing threads |
| 10/07/2009 | CN201321824Y Diamond centralizer capable of milling casing |
| 10/07/2009 | CN201321823Y On-site connecting joint and downhole tool employing same |
| 10/07/2009 | CN201321822Y Axial flow drill rod for pumping water |
| 10/07/2009 | CN101550819A Flexible sucker rod string uphole and downhole technique |
| 10/07/2009 | CN101550817A Hoisting system of stripper well in oil field |
| 10/07/2009 | CN101550809A Flexible lever gradient coupling compression joint technique |
| 10/07/2009 | CN101550808A Soft blocking self-releasing technique of flexible rod string |
| 10/07/2009 | CN101550807A Complex function unit sucker rod string |
| 10/07/2009 | CN100547224C Drill pipe for oil, gas well, drill string and its forming method, method for communicating with oil, gas well equipment |
| 10/06/2009 | CA2519678C Deformable wall of a tubular |
| 10/06/2009 | CA2469627C System and method for lessening impact on christmas trees during downhole operations involving christmas trees |
| 10/06/2009 | CA2456338C A method and system for connecting pipe to a top drive motor |
| 10/06/2009 | CA2392451C Downhole device |
| 10/06/2009 | CA2389241C Lockable drill steel and chuck assembly |
| 10/04/2009 | CA2660591A1 Ballistically compatible backpressure valve |
| 10/01/2009 | WO2009120573A1 Downhole shock absorber with crushable nose |
| 10/01/2009 | WO2009118467A2 Method of installing an underwater riser |
| 10/01/2009 | US20090242277 Compound engagement profile on a blade of a down-hole stabilizer and methods therefor |
| 10/01/2009 | US20090242207 Strake systems and methods |
| 10/01/2009 | US20090242194 Reduced Nylon Hydrocarbon Application Cable |
| 10/01/2009 | US20090242193 Downhole Tools |
| 09/30/2009 | EP2105576A1 Tubular filling system |
| 09/30/2009 | EP2105575A1 Flexibly restraining service loops in an oil derrick |
| 09/30/2009 | CN201318135Y Device preventing oil well polished rod from thread off |
| 09/30/2009 | CN201318134Y Oil well sucker rod centering wax scraper |
| 09/30/2009 | CN201318133Y Flexible joint for offshore drilling standpipe |