| 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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| 06/12/2013 | CN202990913U Connecting device of ramp with catwalk |
| 06/12/2013 | CN202990912U Embedded ramp-way type tribble platform of fossil oil rig |
| 06/12/2013 | CN202990911U Hydraulic slip |
| 06/12/2013 | CN202990910U Oil pumping unit load buffer polished rod eye |
| 06/12/2013 | CN202990909U Rotation-prevention device suitable for steel wire rope |
| 06/12/2013 | CN202990908U Drilling rod lifter |
| 06/12/2013 | CN202990893U Connector for electric heating hollow oil pumping smooth rod |
| 06/12/2013 | CN103154379A Ice worthy jack-up drilling unit with telescoping riser |
| 06/12/2013 | CN103147702A Injection head motion device of continuous string coiled tubing unit |
| 06/12/2013 | CN103147701A Universal hydraulic pipe screwing machine |
| 06/12/2013 | CN103147700A Hydraulic power reversing device |
| 06/12/2013 | CN103147699A Screw drill mounting and dismounting support for centering |
| 06/12/2013 | CN103147698A Polished rod eye bias adjusting device of pumping unit |
| 06/12/2013 | CN102296936B Clamp unscrewing device for non-excavation guide drilling machine |
| 06/12/2013 | CN102287150B Floor rail type highly integrated intelligent iron roughneck |
| 06/12/2013 | CN102278082B Intelligent power catwalk |
| 06/12/2013 | CN102003143B Multidirectional hydraulic rock drilling machine with integrated drives |
| 06/12/2013 | CN101932790B A tubulars storage device |
| 06/12/2013 | CN101705785B Mining linkage all-hydraulic drilling machine |
| 06/11/2013 | CA2717638C Flowback tool |
| 06/06/2013 | WO2013082584A1 Quick drum connect |
| 06/06/2013 | WO2013082376A1 Pressure actuated centralizer |
| 06/06/2013 | WO2013082057A1 Modular downhole tools and methods |
| 06/06/2013 | WO2013081811A2 Slip bowl load transfer system |
| 06/06/2013 | WO2013081468A1 A method and an apparatus for rigging up intervention equipment in a lifting arrangement utilized on a floating vessel |
| 06/06/2013 | WO2013081467A1 Method and device for assembling and disassembling threaded pipes |
| 06/06/2013 | WO2013028517A4 Universal pipe thread protector |
| 06/06/2013 | US20130142593 Alignment Apparatus and Method for a Boom of a Pipe Handling System |
| 06/06/2013 | US20130140034 Seabed well influx control system |
| 06/06/2013 | CA2857482A1 A method and an apparatus for rigging up intervention equipment in a lifting arrangement utilized on a floating vessel |
| 06/05/2013 | EP2599950A2 Improved gripper for coiled tubing injectors |
| 06/05/2013 | EP2598709A2 Installation of tubular strings with lines secured thereto in subterranean wells |
| 06/05/2013 | CN202970546U Drill rod support mechanism for mine drilling tunneling |
| 06/05/2013 | CN202970545U Injection head turnover mechanism |
| 06/05/2013 | CN202970544U Gadder automatic drill-clamping mechanism |
| 06/05/2013 | CN202970543U Automatic mounting demounting device for pipe shed drilling machine drill rod |
| 06/05/2013 | CN202970542U Top drive automatic lifting type sleeve body structure |
| 06/05/2013 | CN202970541U Air tube synchronizing device of safety runway used for well drilling |
| 06/05/2013 | CN202970540U Oil pipe lifting machine |
| 06/05/2013 | CN202970539U Device capable of arranging drill stems tidily |
| 06/05/2013 | CN202970538U Drill rod storing bracket of middle-deep hole trolley |
| 06/05/2013 | CN202970537U Clamp holder for lifting drill rod |
| 06/05/2013 | CN202970536U Hydraulic clamp |
| 06/05/2013 | CN202970535U Hoisting device for drill stem and stem stabilizer of blast-hole drill |
| 06/05/2013 | CN202970534U Novel lifting ring for oil and gas well drilling |
| 06/05/2013 | CN202970533U Integrally forged oil two-arm hoisting ring |
| 06/05/2013 | CN202970532U Beam hanger |
| 06/05/2013 | CN202970531U Suspended rope rack |
| 06/05/2013 | CN202967964U Friction plate type winch |
| 06/05/2013 | CN103132933A Clamping and unscrewing device for iron driller |
| 06/05/2013 | CN103132932A Screwing and fastening and shackling device used for drilling tool joint |
| 06/05/2013 | CN103132931A Iron driller |
| 06/05/2013 | CN103132930A Spinner assembly of iron driller |
| 06/05/2013 | CN103132929A Vehicle-mounted long-stroke operation machine under pressure |
| 06/05/2013 | CN103132928A Pneumatic chuck |
| 06/05/2013 | CN102251751B Novel full-automatic pneumatic chuck for mouse hole |
| 06/05/2013 | CN102168533B Central support for inserting geological drilling casing |
| 06/05/2013 | CN102027187B Wireline drilling system and method |
| 06/04/2013 | US8454296 Pipe-handling apparatus and methods |
| 06/04/2013 | US8454066 Grip extension linkage to provide gripping tool with improved operational range, and method of use of the same |
| 06/04/2013 | US8453758 Dual density mud return system |
| 06/04/2013 | US8453728 Apparatus and method for depth referencing downhole tubular strings |
| 05/30/2013 | WO2013077905A2 Systems and methods for continuous and near continuous drilling |
| 05/30/2013 | WO2012061506A4 A drilling system and a device for assembling and disassembling pipe stands |
| 05/30/2013 | US20130133900 Slip Bowl Load Transfer System |
| 05/30/2013 | US20130133899 Top drive with automatic positioning system |
| 05/30/2013 | US20130133898 Capillary hanger arrangement for deploying control line in existing wellhead |
| 05/30/2013 | CA2856365A1 Systems and methods for continuous and near continuous drilling |
| 05/30/2013 | CA2855806A1 A compensator |
| 05/29/2013 | EP2596206A1 Method and system for sealing a wellbore |
| 05/29/2013 | EP2596202A2 Inflatable restraint system |
| 05/29/2013 | CN202954759U Guide rod for roller of coiled tubing automobile |
| 05/29/2013 | CN202954758U Rotating joint for roller of coiled tubing automobile |
| 05/29/2013 | CN202954757U Folding lift type catwalk for drilling machine |
| 05/29/2013 | CN202954756U Self-powered catwalk |
| 05/29/2013 | CN202954755U Pneumatic clamping tile of multifunctional drill stem |
| 05/29/2013 | CN202954754U Polished rod clips used for oil exploitation |
| 05/29/2013 | CN103124829A Torque enhanced threaded connection |
| 05/28/2013 | CA2797911C Well string injection system and method |
| 05/28/2013 | CA2701232C Pipe connection system |
| 05/28/2013 | CA2694482C Continuous flow drilling systems and methods |
| 05/23/2013 | WO2013075033A1 Self-centering clamping device |
| 05/23/2013 | WO2013074468A2 Weight-based interlock apparatus and methods |
| 05/23/2013 | WO2013071369A1 Pressure feed system for a down hole drill |
| 05/23/2013 | US20130129466 Single joint elevator having deployable jaws |
| 05/23/2013 | US20130126189 Tubular guiding and gripping apparatus and method |
| 05/23/2013 | US20130126186 Wellbore tubular handling system |
| 05/23/2013 | US20130126156 Seal configuration for top drive swivel apparatus and method |
| 05/23/2013 | CA2858639A1 Weight-based interlock apparatus and methods |
| 05/22/2013 | EP2594475A1 Pipe laying vessel |
| 05/22/2013 | EP2593631A1 Device and method for clamping a top drive saver sub |
| 05/22/2013 | CN202946055U Horizontal directional drill rod positioning device which is in linkage with power head |
| 05/22/2013 | CN202946054U Chain drive device of rock drilling machine |
| 05/22/2013 | CN202946053U Rod-exchanging device of rock drilling machine |
| 05/22/2013 | CN202946052U Clamp holder for uphole construction on boring machine |
| 05/22/2013 | CN202946051U MWD (measurement while drilling) instrument hoisting slips |
| 05/22/2013 | CN202946050U Drill rod slip self-adaption device |
| 05/22/2013 | CN202946049U Anti-butting slip |
| 05/22/2013 | CN202946048U Back rope device |
| 05/22/2013 | CN202946047U Adjustable beam hanger of pumping unit |