| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 01/13/2010 | CN201381842Y Steam injection anti-scaling and anti-clogging machine for heat insulated tube |
| 01/13/2010 | CN201381810Y Spiral drill rod capable of being rapidly unscrewed |
| 01/13/2010 | CN201381809Y Drill rod stabilizing device |
| 01/13/2010 | CN201381808Y Sucker rod safety protection device |
| 01/13/2010 | CN201381807Y Carbon fiber pouring integrated pumping rod centralizer |
| 01/13/2010 | CN201381800Y Impact drilling and plugging device |
| 01/12/2010 | US7644755 Annular electrical wet connect |
| 01/07/2010 | WO2010002686A1 Metal-to-metal seal for smooth bore |
| 01/07/2010 | WO2009086442A3 Wellbore pipe centralizer having increased restoring force and self-sealing capability |
| 01/07/2010 | WO2009037591A3 Subsea intervention riser system |
| 01/07/2010 | US20100001522 Rock-drilling tool, a drill rod and a coupling sleeve |
| 01/07/2010 | US20100000797 Drilling tool |
| 01/07/2010 | US20100000067 Battery For A Power Tool With A Battery Pack Ejector |
| 01/06/2010 | EP2140097A2 Stroker tool |
| 01/06/2010 | EP1974121B1 Method for monitoring fluid properties |
| 01/06/2010 | CN201377522Y Flexible cardan shaft |
| 01/06/2010 | CN201377372Y Adjustable injection pump checking support of drilling diesel engine |
| 01/06/2010 | CN201377298Y Equal diameter washing pipe |
| 01/06/2010 | CN201377296Y Integral rigid low-resistance casing centralizer |
| 01/06/2010 | CN201377295Y Hydraulic double-acting shock absorber |
| 01/06/2010 | CN201377294Y Righting abrasion-proof sucker-rod coupling |
| 01/06/2010 | CN201377293Y Screwed nipple for air-seal oil pipe |
| 01/06/2010 | CN201377292Y Bidirectional protection hot-cast pumping rod |
| 01/06/2010 | CN201377291Y Lifting eccentric wear resistant pumping rod |
| 01/05/2010 | US7640993 Method of deploying and powering an electrically driven in a well |
| 01/05/2010 | US7640977 System and method for connecting multiple stage completions |
| 01/05/2010 | CA2451263C Methods and apparatus for applying torque and rotation to connections |
| 01/05/2010 | CA2429193C Full bore automatic gun release module |
| 12/31/2009 | US20090321144 Protecting an element from excessive surface wear by localized hardening |
| 12/31/2009 | US20090321069 System and method for connecting multiple stage completions |
| 12/30/2009 | WO2009158327A2 A device and system for well completion and control and method for completing and controlling a well |
| 12/30/2009 | WO2009158066A2 Resettable antiextrusion backup system and method |
| 12/30/2009 | WO2009157846A1 A cuttable drilling tool, and a cuttable self drilling rock bolt |
| 12/30/2009 | WO2009156739A2 Reaming tool |
| 12/30/2009 | WO2009156708A2 Pipe connector device |
| 12/30/2009 | WO2009156695A1 Method for installing a hybrid column in an expanse of water, hybrid column and associated fluid exploitation installation |
| 12/30/2009 | WO2009156639A1 Device for mounting a flexible line on structure, and related equipment and method |
| 12/30/2009 | WO2009156552A1 Drilling tool and method for widening and simultaneously monitoring the diameter of wells and the properties of the fluid |
| 12/30/2009 | WO2009124051A3 Down-the-hole drill drive coupling |
| 12/30/2009 | WO2009114625A3 Flowback tool |
| 12/30/2009 | WO2009094245A3 Connection methods and systems |
| 12/30/2009 | EP2137373A1 Drilling tool |
| 12/30/2009 | CN201372787Y Hot-water circulation viscosity reduction flow string used inside well |
| 12/30/2009 | CN201372749Y Continuously-reinforced composite pipe for oil field well flushing |
| 12/30/2009 | CN201372742Y A wireless information acquisition system of well drilling field |
| 12/30/2009 | CN201372741Y Double-nut dropping-resistant sucker rod centralizer of thickened oil horizontal well |
| 12/30/2009 | CN201372740Y Overflowing centralizer in oil well |
| 12/30/2009 | CN201372739Y Special screw thread connecting device suitable for radial expanding deformation oil casing pipe |
| 12/30/2009 | CN201372738Y Drill rod joint for conical surface sealing with dual purposes of positive and reverse circulation |
| 12/30/2009 | CN201372737Y Corrosion-resisting oil-well tubing collar |
| 12/30/2009 | CN201372736Y Wear-resisting corrosion-resisting sucker rod collar |
| 12/30/2009 | CN201372735Y Wear-resisting corrosion-resisting sucker rod |
| 12/30/2009 | CN201372734Y Concentric oil pipe device |
| 12/30/2009 | CN101617100A Optical wet connect |
| 12/30/2009 | CN101614113A Gapless coupling method and gapless coupling device for oil pipe |
| 12/30/2009 | CN101614112A Integrally-weighted drilling rod and production and processing method thereof |
| 12/30/2009 | CN101614111A Novel high-strength non-carbide bainitic steel heavy drill shank |
| 12/30/2009 | CN101614110A Percussive drilling friction-welding heavy drill shank |
| 12/30/2009 | CA2729542A1 Reaming tool |
| 12/30/2009 | CA2729541A1 Connector for spoolable media |
| 12/29/2009 | CA2418645C Method and apparatus for a combined mechanical and metallurgical connection |
| 12/24/2009 | US20090314492 Protection Sleeve |
| 12/24/2009 | US20090314486 Device for Centering a Well Casing |
| 12/24/2009 | DE19707549B4 Bohrwerkzeug für Werkzeugmaschinen sowie Verfahren zu dessen Herstellung A drilling tool for machine tools as well as methods for its preparation |
| 12/24/2009 | DE102008003968B3 Bohranlage Drilling rig |
| 12/23/2009 | WO2009155249A2 Extrusion-resistant nose seal |
| 12/23/2009 | WO2009154474A1 Slip connection with adjustable pre-tensioning |
| 12/23/2009 | WO2009153567A1 Improved riser weak link |
| 12/23/2009 | WO2009136287A9 Aluminum riser assembly |
| 12/23/2009 | WO2009126429A3 Kinetic energy harvesting in a drill string |
| 12/23/2009 | EP2134997A1 Super high torque dope-free threaded joint |
| 12/23/2009 | EP2134920A2 Method and device for securing an externally threaded object against being unscrewed |
| 12/23/2009 | CN201367902Y Centralizer of wireless MWD inclinometer |
| 12/23/2009 | CN201367892Y Pipe string structure of downhole hydraulic-jetting fracturing and acidizing tool of oil-gas well |
| 12/23/2009 | CN201367869Y Hydraulic sucker rod centralizer installing and disassembling tool |
| 12/23/2009 | CN201367868Y Coiled-tubing idler wheel centralizing guider for horizontal well |
| 12/23/2009 | CN201367867Y Near-bit rotary centering device |
| 12/23/2009 | CN201367866Y Assembly type sucker rod casting centralizer |
| 12/23/2009 | CN201367865Y Oil reservoir protector for righting-typed well washing |
| 12/23/2009 | CN201367864Y Sucker rod wear preventer |
| 12/23/2009 | CN201367863Y Expansion joint of offshore oil drilling stand pipe system |
| 12/23/2009 | CN201367862Y Underwater flexible device for marine drilling |
| 12/23/2009 | CN201367861Y Drill rod connecting device |
| 12/23/2009 | CN201367860Y Dual-side insulation short piece |
| 12/23/2009 | CN201367859Y Anti-run device of thick oil horizontal well double-nut anti-run sucker rod |
| 12/23/2009 | CN201367858Y Pressurized drilling device for drilling rod |
| 12/23/2009 | CN101608538A External packer of expanding sealing sleeve of internal pipe string tool and construction technique |
| 12/23/2009 | CN101608535A Mechanical multidirectional absorber |
| 12/23/2009 | CN101608282A Drill rod material steel pipe resisting low temperature of -40 to -60 DEG C and manufacturing method thereof |
| 12/23/2009 | CN101608064A Preparation method of carbon fiber reinforced nylon special for centralizers in oilfields |
| 12/23/2009 | CA2728417A1 Improved riser weak link |
| 12/22/2009 | CA2425425C Drill string member |
| 12/18/2009 | CA2669241A1 System and method for connecting a power cable with a submersible component |
| 12/17/2009 | WO2009152391A2 Method of removing cutters |
| 12/17/2009 | WO2009152223A1 Modular low-clearance centralizer and method of making modular low-clearance centralizer |
| 12/17/2009 | WO2009152042A2 Mechanically engaged and releasable connection system |
| 12/17/2009 | US20090308616 Method and Apparatus for a Monodiameter Wellbore, Monodiameter Casing, Monobore, and/or Monowell |
| 12/17/2009 | CA2727785A1 Modular low-clearance centralizer and method of making modular low-clearance centralizer |
| 12/17/2009 | CA2727369A1 Mechanically engaged and releasable connection system |
| 12/16/2009 | EP2132474A1 Method for providing an underwater duct comprising hammering the assembly welds inside the duct |