| 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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| 04/13/2011 | CN102016224A Tubular running tool and methods of use |
| 04/13/2011 | CN102016223A Pipe handling apparatus and methods |
| 04/13/2011 | CN102016222A Spring-loaded rod handling device |
| 04/13/2011 | CN102016221A Gripping element for gripping a tubular in the construction and maintenance of oil and gas wells |
| 04/13/2011 | CN101382046B Inertia variable fly wheel energy storage type well repairing machine |
| 04/13/2011 | CN101265785B Side opening type coning elevator for superdeep well |
| 04/12/2011 | US7921939 Method for using a top drive with an air lift thread compensator and a hollow cylinder rod providing minimum flexing of conduit |
| 04/12/2011 | US7921926 Jointed spearhead assembly |
| 04/12/2011 | US7921925 Method and apparatus for expanding and separating tubulars in a wellbore |
| 04/12/2011 | US7921750 Power tong frames |
| 04/12/2011 | CA2540175C Activity data capture system for a well service vehicle |
| 04/07/2011 | WO2011002602A3 Wellsite equipment replacement system and method for using same |
| 04/07/2011 | WO2011001295A3 Method and apparatus for delivery of a tubular to a drilling apparatus |
| 04/07/2011 | WO2009132264A3 Method of controlling torque applied to a tubular connection |
| 04/07/2011 | US20110079434 Drill pipe handling and moving system |
| 04/07/2011 | US20110079402 Apparatus And Method For Directionally Disposing A Flexible Member In A Pressurized Conduit |
| 04/07/2011 | US20110079401 Equipment and Methods for Deploying Line in a Wellbore |
| 04/07/2011 | US20110079399 Hydra-Connector |
| 04/07/2011 | US20110079386 System and Method for Downhole Communication |
| 04/06/2011 | EP2305946A1 Top feed of control lines to table-elevated spider |
| 04/06/2011 | EP2304169A2 Assembly for use in a christmas tree |
| 04/06/2011 | EP2304167A1 Feed unit |
| 04/06/2011 | EP2304165A2 Apparatus and methods for wedge lock prevention |
| 04/06/2011 | EP2304158A1 Rock drilling device and rock drilling rig and/or rock bolting rig comprising such device |
| 04/06/2011 | EP2304157A1 Downhole motor |
| 04/06/2011 | EP2303754A1 Gearless hoisting apparatus |
| 04/06/2011 | EP1937931B1 A device for cleaning and doping equipment for threads |
| 04/06/2011 | CN201789261U Following cable suspended-moving device of tunneling machine |
| 04/06/2011 | CN201786338U Roller transmission device for bailing pumping unit |
| 04/06/2011 | CN201786330U Low-speed high-torque motor pumping unit |
| 04/06/2011 | CN201786293U SMD-full automatic hydraulic tube replacement system |
| 04/06/2011 | CN201786292U Tongs balancing system of tubular column tongs for oil field well drilling |
| 04/06/2011 | CN201786291U Mainframe steering device of tongs for oilfield drilling strings |
| 04/06/2011 | CN201786290U Rotary grip of pipe column clamp for oil field drilling |
| 04/06/2011 | CN201786289U Automatic balance type iron drill |
| 04/06/2011 | CN201786288U Novel pulling device for double layer platform |
| 04/06/2011 | CN201786287U Mechanical oilfield tubing running and pulling operation device |
| 04/06/2011 | CN201786286U Hydraulic chuck for clamping drilling rod by means of wedged-groove |
| 04/06/2011 | CN201786285U Leakage prevention chain case of oil rig |
| 04/06/2011 | CN201786284U Well plait regulator |
| 04/06/2011 | CN201786283U Twin-stage horsehead rope hanger device |
| 04/06/2011 | CN201786282U Drill-rod hydraulic clamper for coal mine |
| 04/06/2011 | CN201786281U Oil pipe bridge simple support |
| 04/06/2011 | CN201786245U Turntable and matched supporting pneumatic chuck thereof |
| 04/06/2011 | CN102003154A Lining type top drive elevator |
| 04/06/2011 | CN102003153A Method for suspending trip and device thereof |
| 04/06/2011 | CN102003143A Multidirectional hydraulic rock drilling machine with integrated drives |
| 04/06/2011 | CN101287577B Water powered impulsive unit |
| 04/05/2011 | US7918636 Pipe handling apparatus and method |
| 04/05/2011 | US7918284 Protective sleeve for threaded connections for expandable liner hanger |
| 04/05/2011 | US7918273 Top drive casing system |
| 04/05/2011 | US7918271 Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device |
| 04/05/2011 | US7918270 Apparatus for flexibly restraining service loops in an oil derrick to prevent entangling of the loops |
| 04/05/2011 | CA2630096C Tong gear shift system |
| 04/05/2011 | CA2585152C Blasthole drill with automatic breakout wrench with floating gripping dies |
| 04/05/2011 | CA2385558C Clamping mechanism, clutch and apparatus incorporating the same |
| 03/31/2011 | WO2011037974A2 Wireline cable for use with downhole tractor assemblies |
| 03/31/2011 | WO2011005501A3 Large diameter tubular lifting apparatuses and methods |
| 03/31/2011 | US20110073375 Modular top drive lubrication system and methods |
| 03/31/2011 | US20110073324 Self Sealing Hydraulic Coupler |
| 03/31/2011 | US20110073323 Line retention arrangement and method |
| 03/31/2011 | US20110073316 Surface refillable protector |
| 03/31/2011 | US20110073299 Lubricator for Use with Coiled Tubing Apparatus and Universal Rig Having Coiled Tubing and Top Drive Capability |
| 03/31/2011 | US20110073297 Permanent magnet direct drive drawworks |
| 03/31/2011 | DE102009043081A1 Storage device for vertical storing of drilling rod in drilling mast of vertical drilling system, has upper retaining device exhibiting retaining slot, which extends with respect to rotation device |
| 03/31/2011 | CA2774775A1 Wireline cable for use with downhole tractor assemblies |
| 03/30/2011 | EP2301879A2 Continuous rod transport system |
| 03/30/2011 | EP2300683A1 Gripping jaw device |
| 03/30/2011 | CN201778795U Shaftless drum and cable pay-off system combination |
| 03/30/2011 | CN201778728U Packing box press cover hanging device |
| 03/30/2011 | CN201778721U Packing box for oil well |
| 03/30/2011 | CN201778701U Manual drilling positionor |
| 03/30/2011 | CN201778700U Drill stem joint positioning control device for continuous circulation drilling |
| 03/30/2011 | CN201778699U Guide-type injection device for coiled tubing |
| 03/30/2011 | CN201778698U Iron roughneck drill telescoping mechanism |
| 03/30/2011 | CN201778697U Gripper for float type well drilling platform |
| 03/30/2011 | CN201778696U Lifting mechanism of automatic drill pipe feeding equipment for oil field |
| 03/30/2011 | CN201778695U Pipe pushing trolley of oil field pipe delivery equipment |
| 03/30/2011 | CN201778694U Drill damper guide wheel set with locking devices |
| 03/30/2011 | CN201778693U Multifunctional string pneumatic slip |
| 03/30/2011 | CN201778692U Pedal type half-hinging chuck for marine riser |
| 03/30/2011 | CN201778691U Feed mechanism of hydraulic drill rig |
| 03/30/2011 | CN201778690U Drilling tool treatment hydraulic-control manipulator suitable for different inclination angles of headframe |
| 03/30/2011 | CN201778689U Rotatable BOP maintenance operating board for petroleum drilling rig |
| 03/30/2011 | CN201778688U Ground integrated control station of underground tool |
| 03/30/2011 | CN201778687U Workover rig under pressure for wellhead |
| 03/30/2011 | CN201778663U Rotary drilling dig and guide pulley yoke thereof |
| 03/30/2011 | CN201778660U Dedicated liftable operation wellhead drill stand for beach oilfield workover operations |
| 03/30/2011 | CN201778654U Air bag low-pressure automatic water drain valve of workover rig for oil field |
| 03/30/2011 | CN1914405B Method and apparatus for facilitating drillpipe conveyance |
| 03/30/2011 | CN101999029A Sonic latch mechanism |
| 03/29/2011 | US7917293 Method and system for controlling a well service rig based on load data |
| 03/29/2011 | US7913767 System and method for connecting tubular members |
| 03/29/2011 | US7913754 Wellhead assembly and method for an injection tubing string |
| 03/28/2011 | CA2714456A1 Continuous rod transport system |
| 03/24/2011 | WO2011034437A1 Riser tensioner |
| 03/24/2011 | US20110070054 Apparatus and method for handling tubulars |
| 03/24/2011 | US20110067887 Coiled Tubing Well Intervention System and Method |
| 03/24/2011 | US20110067529 Wrenching tong |
| 03/23/2011 | EP2299050A1 Light-weight single joint manipulator arm |