| Patents for E21B 19 - Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables (17,198) |
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| 01/16/2013 | CN202673188U Logging blowout prevention pipe hydraulic pressure lifting device |
| 01/16/2013 | CN202673182U Automatic tubular column support device |
| 01/16/2013 | CN102884274A Method and apparatus for opening threaded joints of drilling equipment |
| 01/16/2013 | CN102877802A Numerical-control petroleum workover line |
| 01/16/2013 | CN102877801A 液压卡瓦 Hydraulic kava |
| 01/16/2013 | CN102877800A Spring type clamp |
| 01/16/2013 | CN102877788A Outburst prevention track drilling machine for laneway excavation |
| 01/16/2013 | CN101886527B Connecting device of drilling machine components and operating method for connecting drilling machine components |
| 01/16/2013 | CN101824972B Mechanism for connecting and disconnecting drill rod and casing |
| 01/15/2013 | US8353337 Method for cooling a rotating control head |
| 01/15/2013 | CA2686213C Enclosed coiled tubing rig |
| 01/15/2013 | CA2577949C Tubular handling apparatus and a drilling rig |
| 01/10/2013 | WO2013004956A1 Drilling mast having a double drawing capacity |
| 01/10/2013 | US20130011221 Apparatus for handling tubulars |
| 01/10/2013 | US20130008720 Adjustable work platform for pipe and casing stabbing operations |
| 01/10/2013 | US20130008682 Battery for a power tool |
| 01/10/2013 | US20130008644 Tongs triggering method |
| 01/10/2013 | US20130008641 Apparatus for supporting or handling tubulars |
| 01/09/2013 | EP2542752A1 Elevator grip assurance |
| 01/09/2013 | CN202659179U High precision guide device for shop truck |
| 01/09/2013 | CN202659178U Threaded device for mounting and dismounting square drill rod |
| 01/09/2013 | CN202659177U Dedicated device for clamping steel wire rope |
| 01/09/2013 | CN202659176U Safety slip |
| 01/09/2013 | CN202659175U Power catwalk for petroleum drilling machine |
| 01/09/2013 | CN102865054A Vertical pumping unit moving mechanism for well repair |
| 01/09/2013 | CN102865046A Fluid anti-splash device for buckling lead-in of oil pipe in mechanical operation under pressure and use method thereof |
| 01/08/2013 | US8348320 Load ring for lifting by elevator, of casing having no upset |
| 01/08/2013 | US8348319 Grapple attachment for use with drill pipes |
| 01/08/2013 | US8347982 System and method for managing heave pressure from a floating rig |
| 01/08/2013 | US8347972 Torque wrench system having multiple torque stations |
| 01/08/2013 | US8347971 Manipulatable spider components adapted for cooperation with a vertically reciprocating control line guide |
| 01/08/2013 | US8347970 Wellhead tubular connector |
| 01/08/2013 | CA2712495C Sucker rod coupling extractor |
| 01/08/2013 | CA2703703C Pipe handling apparatus |
| 01/08/2013 | CA2687405C Arrangement for employing drill steel centralizer travelling on feed beam of rock drill machine |
| 01/08/2013 | CA2668319C Apparatus and methods for spinning a pipe |
| 01/08/2013 | CA2661405C Methods and apparatus for automated oilfield torque wrench set-up to make-up and break-out tubular strings |
| 01/08/2013 | CA2649781C Tubular running tool |
| 01/08/2013 | CA2582604C Coiled tubing rig |
| 01/08/2013 | CA2556430C Clamping apparatus, drill string component and rock drilling rig |
| 01/08/2013 | CA2487218C Top drive assembly |
| 01/08/2013 | CA2467381C Mono diameter wellbore casing |
| 01/03/2013 | WO2012098492A3 Drill rig |
| 01/03/2013 | WO2011148184A3 Well intervention method and apparatus |
| 01/03/2013 | WO2011146623A3 Apparatus and methods for providing tubing into a subsea well |
| 01/03/2013 | US20130000925 Apparatus And Method For Directionally Disposing A Flexible Member In A Pressurized Conduit |
| 01/03/2013 | US20130000892 Drum Load Monitoring |
| 01/02/2013 | EP2539536A2 Drilling system and method of operating a drilling system |
| 01/02/2013 | EP2539532A2 Pressure-activated valve for hybrid coiled tubing jointed tubing tool string |
| 01/02/2013 | CN202645489U Combined type blowout preventer with locking function |
| 01/02/2013 | CN202645473U Iron driller clamp group centering mechanism |
| 01/02/2013 | CN202645472U Screwing on/off plier |
| 01/02/2013 | CN202645471U Spinning pincers |
| 01/02/2013 | CN202645470U Twisting device for sucker rods |
| 01/02/2013 | CN202645469U Reducing slip of insulated tubing string of thermal production well |
| 01/02/2013 | CN202645468U Multi-latch engagement type polish rod square clamp |
| 01/02/2013 | CN202645467U Steel wire rope replacement mechanism |
| 01/02/2013 | CN102852473A Protecting housing for iron roughneck bearing of continuous circulation drilling system |
| 01/02/2013 | CN102852472A Pawl spring type nut mechanical self-adaptive drilling loading mechanism |
| 01/02/2013 | CN102852471A Novel multifunctional beam hanger |
| 01/02/2013 | CN102852464A Hydraulic energy-storage petroleum drilling and repairing machine capable of tripping double joints or three-joint unit |
| 01/02/2013 | CN101832113B Bilateral inlet-outlet pipe mechanism of oil field pipe transportation equipment |
| 01/02/2013 | CN101787860B Conveying mechanism and method of upper drilling platform and lower drilling platform of drilling pipe used for petroleum drilling |
| 01/02/2013 | CN101575955B Design method of low-pressure gas well swabbing damper |
| 01/02/2013 | CN101528420B Methods and apparatus for automated oilfield torque wrench set-up to make-up and break-out tubular strings |
| 01/01/2013 | US8342250 Methods and apparatus for manipulating and driving casing |
| 01/01/2013 | US8342236 Blast hole drill bit carousel and a blast hole drill including a blast hole drill bit carousel |
| 12/27/2012 | WO2012177680A2 Well-based fluid communication control assembly |
| 12/27/2012 | WO2012177559A2 Gooseneck conduit system |
| 12/27/2012 | WO2012175658A2 Tubular device with radiofrequency communication for well head |
| 12/27/2012 | WO2012145160A3 Galvanically isolated exit joint for well junction |
| 12/27/2012 | WO2012138646A3 An injector head for coiled tubing systems |
| 12/27/2012 | WO2012125933A3 Hydraulic fracture diverter apparatus and method thereof |
| 12/27/2012 | WO2012122483A3 Graph to analyze drilling parameters |
| 12/27/2012 | US20120326459 Extended range single-joint elevator |
| 12/27/2012 | US20120325498 Floating spider |
| 12/27/2012 | US20120325496 Single upset landing string running system |
| 12/27/2012 | CA2839161A1 Shoulder yielding detection during tubular makeup |
| 12/26/2012 | CN202628000U Open type drill pipe guide mechanism |
| 12/26/2012 | CN202627999U Open-box-type gyrator |
| 12/26/2012 | CN202627998U Clamping mechanism for tong head of friction wheel type power tong |
| 12/26/2012 | CN202627997U Clamping and unscrewing system for horizontal directional drilling machine |
| 12/26/2012 | CN202627996U Bushing back-up tong |
| 12/26/2012 | CN202627995U Automatic connecting rod pressurization sampling device matched with deep-sea drilling rig |
| 12/26/2012 | CN202627994U FOX oil pipe locating device |
| 12/26/2012 | CN202627993U Anti-outburst lift sub pin |
| 12/26/2012 | CN202627992U Drilling rod lifting and descending system of horizontal directional drilling rig |
| 12/26/2012 | CN202627991U Device for automatically laying down drill pipes |
| 12/26/2012 | CN202625682U Bit feed winch of deep-hole core drilling machine |
| 12/26/2012 | CN102839932A Oil cylinder driving rod replacement machine |
| 12/26/2012 | CN102839931A Drilling power tongs with improved structure |
| 12/26/2012 | CN102839930A Rapidly-changed anti-drop clip-type rope socket |
| 12/26/2012 | CN102839929A Lock pin type mechanical self-adaptive nut drilling and loading mechanism |
| 12/26/2012 | CN102839928A Continuous up-and-down method of pipe column of oil field mine and dual-traveling slip device |
| 12/26/2012 | CN102839919A Drill pipe of engineering driller |
| 12/26/2012 | CN101336332B Method for operating control lines and tubular drill string |
| 12/26/2012 | CN101133230B Drill rod support |
| 12/25/2012 | US8336632 System and method for direct drive pump |
| 12/25/2012 | US8336614 Movable rotary well drilling rig |
| 12/20/2012 | WO2012174057A1 Coiled tubing useful life monitor and technique |