| 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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| 02/06/2013 | CN102913152A Single oil tube transfer device |
| 02/06/2013 | CN102913151A Offshore drilling rig fingerboard latch position indication |
| 02/06/2013 | CN102913150A Anti-butting slip |
| 02/06/2013 | CN102913149A Rotary drilling rig and two-channel hydraulic power transmission elevator thereof |
| 02/06/2013 | CN102910549A Rotary drilling rig and main winch pay-off method and pay-off control system thereof |
| 02/05/2013 | US8365834 Tubular handling apparatus |
| 02/05/2013 | US8365816 Method and apparatus for conducting earth borehole operations |
| 01/31/2013 | WO2013016097A2 System and method for production of reservoir fluids |
| 01/31/2013 | WO2013015978A2 Pushing or pulling device |
| 01/31/2013 | WO2013015848A1 Pipe-in-pipe apparatus, and methods and systems |
| 01/31/2013 | WO2013015800A1 Downhole line tool assembly and method for use thereof |
| 01/31/2013 | US20130029543 Power Supply System for Marine Drilling Vessel |
| 01/31/2013 | US20130025937 Systems and Methods for Continuous and Near Continuous Drilling |
| 01/31/2013 | US20130025899 Multispeed power tool |
| 01/31/2013 | US20130025880 Traversing a travel joint with a fluid line |
| 01/31/2013 | US20130025847 Apparatus for Handling and Holding a Pipe |
| 01/31/2013 | CA2842817A1 Device for producing a bore in the ground, rotary drive device and rotary seal arrangement |
| 01/31/2013 | CA2842162A1 Pipe-in-pipe apparatus, and methods and systems |
| 01/31/2013 | CA2842045A1 System and method for production of reservoir fluids |
| 01/30/2013 | EP2551530A1 Device for handling tubes |
| 01/30/2013 | CN202706950U Double-beam fixing type structure of top drive back-up wrench |
| 01/30/2013 | CN202706949U A petroleum workover rig tackle device |
| 01/30/2013 | CN202706948U Gyrator slip of drilling machine |
| 01/30/2013 | CN202706947U High-strength polished rod clip |
| 01/30/2013 | CN202706946U A horizontal adjustment device for a slide of a petroleum workover rig |
| 01/30/2013 | CN202706908U Top drive well drilling device for petroleum drilling machine |
| 01/30/2013 | CN202706905U Double drill deeply-planted afforestation drilling machine |
| 01/30/2013 | CN202706029U Top-end pulley frame of pile machine with rotary vertical post |
| 01/30/2013 | CN102906366A Remote operation of a rotating control device bearing clamp and safety latch |
| 01/30/2013 | CN102900387A Friction self-locking drill rod clamping mechanism |
| 01/30/2013 | CN102900386A Automated ramp device |
| 01/30/2013 | CN102900385A Over chuck distance steel wire operation slip plug |
| 01/30/2013 | CN102900384A Normally-closed hydraulic chuck for coalmine driller |
| 01/30/2013 | CN102900383A Device for handling tubes |
| 01/30/2013 | CN102900382A Hydraulic cathead device |
| 01/30/2013 | CN102900381A Full hydraulic energy-saving snubbing aggregate unit |
| 01/30/2013 | CN101906988B Remote-control underground gas extraction drilling machine |
| 01/29/2013 | US8360160 Deep water drilling with casing |
| 01/29/2013 | US8360159 Rotating control device with replaceable bowl sleeve |
| 01/29/2013 | US8359951 Wrenching tong |
| 01/29/2013 | CA2606486C Improved coiled tubing injector head |
| 01/24/2013 | WO2013013147A2 High pressure tie back receptacle and seal assembly |
| 01/24/2013 | WO2013012992A2 Adjustable mudline tubing hanger suspension system |
| 01/24/2013 | WO2013012572A2 Frangible slip for downhole tools |
| 01/24/2013 | WO2013012317A1 Technical field and background of the invention |
| 01/24/2013 | WO2012162157A3 Formation treatment system and method |
| 01/24/2013 | WO2012102966A3 Drill string components resistant to jamming |
| 01/24/2013 | US20130020091 Unibody lubricator with externally threaded nipple |
| 01/24/2013 | US20130020067 Mobile hydraulic workover rig |
| 01/24/2013 | CA2839730A1 Frangible slip for downhole tools |
| 01/23/2013 | EP2547856A2 Injector head |
| 01/23/2013 | CN202690014U Sensor replacing mechanism |
| 01/23/2013 | CN202690003U Gas well swabbing ball type damper |
| 01/23/2013 | CN202689976U Cantilever type iron driller |
| 01/23/2013 | CN202689975U Down-the-hole drill with hydraulic rod dismounting device |
| 01/23/2013 | CN202689974U Roller device for spinning wrench of iron roughnecks |
| 01/23/2013 | CN202689973U Rope locking device used for dismantling operation machine roller large rope |
| 01/23/2013 | CN202689972U Hydraulic chuck |
| 01/23/2013 | CN202689931U Novel deep sea automatic extension rod pressure maintaining sampling drill |
| 01/23/2013 | CN202689926U Folding arm rock drill rig with automatic drill rod replacement device |
| 01/23/2013 | CN102889062A Headframe type mechanical and electrical integrated well repairing machine |
| 01/23/2013 | CN102889061A Combined lift sub |
| 01/23/2013 | CN102031939B Hydraulic pipe screwing machine for screwing and unscrewing outer flat drill pipe and being capable of keeping off orifice |
| 01/23/2013 | CN101775959B Drilling machine of coaxial double-drill large-caliber multifunctional foundation pile |
| 01/22/2013 | US8356675 Apparatus and methods for tubular makeup interlock |
| 01/22/2013 | US8356674 Tubular running tool and methods of use |
| 01/22/2013 | US8356661 Combination swivel and ball dropper |
| 01/22/2013 | US8356660 Apparatus having spaced apart and offset ladder rungs for interlocking and flexibly restraining service loops in an oil derrick to prevent entangling of the loops |
| 01/20/2013 | CA2782084A1 A wire access line drum assembly |
| 01/17/2013 | WO2013009617A2 Methods of limiting or reducing the amount of oil in a sea using a fluid director |
| 01/17/2013 | WO2013008234A1 Stringing block for aerial electric conductor |
| 01/17/2013 | WO2013008046A1 Gripper block assembly for coiled tubing injectors |
| 01/17/2013 | WO2012158367A3 Multi-position mechanical spear for multiple tension cuts while removing cuttings |
| 01/17/2013 | WO2012158026A3 Pipe guiding device, pipe pusher, roller bock and method for laying a pipe in a subsurface |
| 01/17/2013 | WO2012151148A3 Extended range single - joint elevator |
| 01/17/2013 | WO2012151147A3 Floating spider |
| 01/17/2013 | WO2012006455A3 Torque enhanced threaded connection |
| 01/17/2013 | US20130014947 Drilling/Frac Adapter and Method of Use |
| 01/17/2013 | US20130014937 Rotary Table Device for a Pipe String |
| 01/17/2013 | US20130014934 Smart Drop-Off Tool and Hang-Off Tool for a Logging String |
| 01/17/2013 | US20130014612 Internally Retained Jaw Roller Pin |
| 01/16/2013 | CN202673218U Secret chamber hole control idling anti-theft lock and key |
| 01/16/2013 | CN202673216U 大位移井振动工具 Reach Wells vibration tools |
| 01/16/2013 | CN202673205U Drill rod connecting and dismounting device |
| 01/16/2013 | CN202673204U Rod dismounting device for drilling machine |
| 01/16/2013 | CN202673203U Device for tying well drilling snub line |
| 01/16/2013 | CN202673202U Double jaw plate tong head of power tongs/ iron driller |
| 01/16/2013 | CN202673201U Iron roughneck base capable of being assembled and disassembled quickly |
| 01/16/2013 | CN202673200U Raising plate device for power cat way pipes |
| 01/16/2013 | CN202673199U Drill string translating device in drill site for full-automatic drilling machine |
| 01/16/2013 | CN202673198U Automatic derrick monkey of drilling machine |
| 01/16/2013 | CN202673197U Automatic derrick monkey turning device directly driven by motor |
| 01/16/2013 | CN202673196U Supporting plate device of manipulator for conveying drilling tools |
| 01/16/2013 | CN202673195U Device for connecting drill pipes with three-joint unit |
| 01/16/2013 | CN202673194U Rat hole clamping device for petroleum drilling machine |
| 01/16/2013 | CN202673193U Drill stem automatic stacking and transporting device |
| 01/16/2013 | CN202673192U Tensioner liquid cylinder typhoon-preventing fixing device |
| 01/16/2013 | CN202673191U Multi-functional maintenance service device for petroleum drilling machine |
| 01/16/2013 | CN202673190U Direct hydraulic cylinder type offshore drilling water-secluding pipe tensioning system |
| 01/16/2013 | CN202673189U Rotary type throttling kill manifold capable of moving vertically and horizontally |