| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 04/16/2009 | WO2009048768A2 Modular connector and method |
| 04/16/2009 | WO2009047536A1 Downhole tubular product |
| 04/16/2009 | WO2009023222A3 Buoyancy tensioning systems for offshore marine risers and methods of use |
| 04/16/2009 | WO2009021037A3 Rotating and reciprocating swivel apparatus and method |
| 04/16/2009 | WO2006121699A3 Flow through subassembly for a downhole drill string and method for making same |
| 04/16/2009 | US20090097926 Connector Assembly for an Off Shore Riser |
| 04/16/2009 | US20090095531 Systems and methods for reducing backward whirling while drilling |
| 04/16/2009 | CA2702020A1 Modular connector and method |
| 04/16/2009 | CA2701232A1 Pipe connection system |
| 04/15/2009 | CN201221328Y Scraping and sweeping righting type sedimentation cup |
| 04/15/2009 | CN201221320Y Centralizer of drill rod |
| 04/15/2009 | CN201221319Y Multi-layer oriented perforating interlayer directional connection fixing device |
| 04/15/2009 | CN201221318Y Connecting mechanism of drill bit and supercharger |
| 04/15/2009 | CN101410661A A disengageable spindle drive |
| 04/15/2009 | CN101410587A Expandable tubular assembly |
| 04/15/2009 | CN101408093A Diameter-variable stabilizer for gas drilling |
| 04/15/2009 | CN100478599C Improvement of resistance to fatigue of a threaded tubular connection |
| 04/15/2009 | CN100478542C Open hole tractor and method for transferring articles in hole |
| 04/14/2009 | CA2531743C Electrical imaging in conductive and non-conductive mud |
| 04/14/2009 | CA2384342C Partial coil-in-coil tubing |
| 04/14/2009 | CA2314856C Lateral entry guidance system |
| 04/09/2009 | WO2009046075A2 Drill bits and tools for subterranean drilling |
| 04/09/2009 | WO2009046069A2 Drill bit for subterranean drilling |
| 04/09/2009 | WO2009043152A1 Fluid flow conduit, method and use |
| 04/09/2009 | WO2009016346A3 Deployment system |
| 04/09/2009 | WO2006014333A3 Expandable tubular |
| 04/09/2009 | US20090090516 Tubular liner |
| 04/09/2009 | US20090090513 System and Method for Conveying a Wired Coiled Assembly |
| 04/08/2009 | CN201218084Y Liquid-discharging gas-extracting column with discharge aid device |
| 04/08/2009 | CN201218062Y Bidirectional anti-corrosion abrasion-proof sucker-rod coupling |
| 04/08/2009 | CN201218061Y Polymer closed anti-corrosion abrasion-proof pumping rod |
| 04/08/2009 | CN201218060Y Tungsten alloy anti-corrosion pumping rod |
| 04/08/2009 | CN101403282A Oil tube drilling tool stabilizer |
| 04/07/2009 | US7513845 Variable speed transmission for a power tool |
| 04/07/2009 | US7513305 Apparatus and methods for operating a tool in a wellbore |
| 04/07/2009 | CA2452238C Wire lock expandable connection |
| 04/02/2009 | WO2009042494A2 Modular power source for subsurface systems |
| 04/02/2009 | WO2009042389A1 Structure for wired drill pipe having improved resistance to failure of communication device slot |
| 04/02/2009 | WO2009040510A2 Down-hole wireless communication system |
| 04/02/2009 | WO2009006334A9 Connections for expandable tubulars |
| 04/02/2009 | US20090084557 Fluid flow conduit, method and use |
| 04/02/2009 | US20090084541 Structure for wired drill pipe having improved resistance to failure of communication device slot |
| 04/02/2009 | CA2698746A1 Contraction joint system |
| 04/01/2009 | EP2042682A2 Flexible hang-off arrangement for a catenary riser |
| 04/01/2009 | EP2041607A2 Method and apparatus for building a tilted antenna |
| 04/01/2009 | EP1668219B1 Steerable bit assembly and methods |
| 04/01/2009 | EP1305547B1 Data transmission system for a string of downhole components |
| 04/01/2009 | CN201214991Y High-efficiency spiral water drill rod |
| 04/01/2009 | CN201214990Y Self-lubricating wear resistant coupling for sucker rod |
| 04/01/2009 | CN201214989Y Anti-releasing device for expansion link |
| 04/01/2009 | CN201214988Y Torsion pumping polished rod |
| 04/01/2009 | CN201214987Y Torsion sucker rod |
| 04/01/2009 | CN201214986Y Anti-pollution well washing oil extraction device |
| 04/01/2009 | CN101397898A Eccentric wear prevention method for pumping well with pole |
| 04/01/2009 | CN101397894A Well drilling gas injection joint and use method thereof |
| 04/01/2009 | CN101397890A Apparatus string for use in a wellbore |
| 04/01/2009 | CN101397889A Flexible liner for drilled drainhole deployment |
| 04/01/2009 | CN101397673A Sacrificial anode and protective cathode-casing tube anti-corrosive apparatus |
| 04/01/2009 | CN101397671A Sacrificial anode and protective cathode-oil pipe anti-corrosive apparatus |
| 04/01/2009 | CN101397670A Sacrificial anode and protective cathode-pumping rod anti-corrosive apparatus |
| 04/01/2009 | CN101396874A Preparation method and device of eccentric wear prevention pumping rod |
| 04/01/2009 | CN100473745C Oil well tube resisting stress corrosion of H2S and manufacture method thereof |
| 03/31/2009 | US7510219 Threaded connection for oil field applications |
| 03/31/2009 | US7510012 Bubble breaker assembly |
| 03/31/2009 | US7510003 Downhole connection system |
| 03/31/2009 | US7509744 Mode selection mechanism for power tool and power tool incorporating such mechanism |
| 03/26/2009 | WO2009038520A1 A method and a device for jointing tubes |
| 03/26/2009 | WO2009038513A1 Coupling for pipes, suitable in particular for connecting plastic drill-casing |
| 03/26/2009 | WO2008149098A3 Drilling apparatus with a pilot hole drilling assembly |
| 03/26/2009 | WO2008134765A4 Method and apparatus to position and protect control lines being coupled to a pipe string on a rig |
| 03/26/2009 | US20090080982 Bend Stiffener |
| 03/26/2009 | US20090078465 Steerable drill bit arrangement |
| 03/26/2009 | US20090078461 Drilling subsurface wellbores with cutting structures |
| 03/26/2009 | US20090078430 Contraction joint system |
| 03/26/2009 | US20090078425 Flexible hang-off arrangement for a catenary riser |
| 03/25/2009 | EP2038510A1 Stabbing guide adapted for use with saver sub |
| 03/25/2009 | EP2038509A1 A roller reamer |
| 03/25/2009 | EP2038504A1 Selective agitation of downhole apparatus |
| 03/25/2009 | CN201212387Y Gas injection, gas production and brine discharge integration process pipe column for underground gas storage |
| 03/25/2009 | CN201212361Y Strengthening and sealing arrangement for downhole tool mandrel |
| 03/25/2009 | CN201212360Y Ring-releasing safety joint |
| 03/25/2009 | CN201212359Y Hydraulic releasing mechanism |
| 03/25/2009 | CN100472031C System and method for transmitting electric power into a bore |
| 03/24/2009 | US7506704 Downhole swivel joint |
| 03/24/2009 | CA2567346C Drill string fitting |
| 03/24/2009 | CA2437052C Apparatus and method to mechanically orient perforating systems in a well |
| 03/24/2009 | CA2432217C Flightless rock auger for use with pressure drills with quick attachment and method of use |
| 03/24/2009 | CA2398289C Choke inductor for wireless communication and control in a well |
| 03/19/2009 | WO2009034740A1 Digging tool, digging bit, and device |
| 03/19/2009 | WO2009033267A1 Apparatus and method for forging premium coupling blanks |
| 03/19/2009 | WO2006110461A3 Drilling with casing |
| 03/19/2009 | US20090071722 Wellbore consolidating tool for rotary drilling applications |
| 03/18/2009 | EP2035649A1 Stabilizer for drill strings |
| 03/18/2009 | EP2035648A1 Polymer matrix reinforced stiffening element and method of producing the same |
| 03/18/2009 | EP2035647A1 Epoxy-secured web collar |
| 03/18/2009 | EP2035646A1 Multi-sectional percussive drill bit assembly |
| 03/18/2009 | EP2035645A1 Microtunnelling system and apparatus |
| 03/18/2009 | CN201209409Y Drill rod of down-the-hole rock drill |
| 03/18/2009 | CN201209408Y Elastic centralizer |
| 03/18/2009 | CN201209407Y Tungsten alloy plated coupling |