| 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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| 03/23/2011 | CN201771452U Binding clip three-jaw-plate clamping mechanism of power tong |
| 03/23/2011 | CN201771451U Strip mining electric drill |
| 03/23/2011 | CN201771450U Automatic oil tube elevator |
| 03/23/2011 | CN201771449U Improved pumping well polish rod clamp |
| 03/23/2011 | CN201771448U Ball clip type clamping mechanism |
| 03/23/2011 | CN201771447U Special single-arm upright column type thruster of pipe for hydraulic cutting |
| 03/23/2011 | CN201771420U Lifting mechanism of rotary drilling rig |
| 03/23/2011 | CN101988374A System for storing and fetching multiple drill rods |
| 03/23/2011 | CN101988373A Drilling apparatus |
| 03/22/2011 | US7909120 Gripping tool |
| 03/22/2011 | US7909106 Method for spooled tubing operations |
| 03/22/2011 | US7909091 Apparatus having improved interlocking units for flexibly restraining service loops in an oil derrick to prevent entangling of the loops |
| 03/22/2011 | CA2713676A1 Apparatus and method for handling tubulars |
| 03/22/2011 | CA2703694C Coupling apparatus |
| 03/22/2011 | CA2573670C System and method for deflection compensation in power drive system for connection of tubulars |
| 03/22/2011 | CA2564357C Apparatus and method for modified horizontal directional drilling assembly |
| 03/17/2011 | WO2011031528A2 Methods and apparatus for manipulating and driving casing |
| 03/17/2011 | WO2011029993A1 Method for stiffening protective structure of rock drilling rig, and protective structure of rock drilling rig |
| 03/17/2011 | WO2011029992A1 Rock drilling unit, feed beam, and method for damping vibration |
| 03/17/2011 | US20110062097 Apparatus for storing lengths of pipe |
| 03/17/2011 | CA2772587A1 Rock drilling unit, feed beam, and method for damping vibration |
| 03/16/2011 | EP2295708A1 Pipe elevator |
| 03/16/2011 | EP2294278A2 Oil well plug and abandonment method |
| 03/16/2011 | CN201763283U Roller set for hydraulic hose of coiled tubing equipment |
| 03/16/2011 | CN201763282U Wedge-type clamp |
| 03/16/2011 | CN201763281U Back-up tong for oil drilling |
| 03/16/2011 | CN201763280U Power tongs |
| 03/16/2011 | CN201763279U Novel mechanical pliers for connecting three-joint unit |
| 03/16/2011 | CN201763278U Hydraulic control system for rod stand in multi-drilling rod load-unload system |
| 03/16/2011 | CN201763277U Transporting device |
| 03/16/2011 | CN201763276U Clamp for fixing pressure cap of pumping well packing box |
| 03/16/2011 | CN201763275U Deviation adjusting beam hanger of pumping unit |
| 03/16/2011 | CN201763274U Pumping unit well wire rope extender |
| 03/16/2011 | CN201763273U Wind-resistance mechanism of oil pumping unit polished rod eye |
| 03/16/2011 | CN201763272U Multi-drilling rod storing and accessing system |
| 03/16/2011 | CN201763232U Cast-in-site tubular pile rotary drilling rig |
| 03/16/2011 | CN101985873A Mechanical operation device for lifting and lowering oil tube of oil well |
| 03/15/2011 | US7905300 Drilling device and drilling method utilizing dual drives |
| 03/15/2011 | US7905295 Electrocoil tubing cable anchor method |
| 03/15/2011 | CA2503760C Support system for power tong assembly |
| 03/10/2011 | WO2011028786A2 Method of preventing dropped casing string with axial load sensor |
| 03/10/2011 | WO2010144184A3 Slip free drill pipe |
| 03/10/2011 | US20110056702 Dissolvable connector guard |
| 03/10/2011 | US20110056681 Method and apparatus for performing wireline logging operations in an under-balanced well |
| 03/10/2011 | CA2772655A1 Method of preventing dropped casing string with axial load sensor |
| 03/09/2011 | EP2291575A2 Spoolable riser hanger |
| 03/09/2011 | CN201756956U Hydraulic control device of an injection head clamping device |
| 03/09/2011 | CN201756932U Vice roller mechanism of a driller |
| 03/09/2011 | CN201756931U 虎钳浮动装置 Vise floating device |
| 03/09/2011 | CN201756930U Vice augmentation mechanism |
| 03/09/2011 | CN201756929U Tiger-teeth seat of a vice |
| 03/09/2011 | CN201756928U Drill rod bracket of a horizontal directional driller |
| 03/09/2011 | CN201756927U Large tube-diameter continuous oil tube device |
| 03/09/2011 | CN201756926U Driller gate slope suitable for various drill-rod lengths |
| 03/09/2011 | CN201756925U Safety polished rod clip for pumping unit well |
| 03/09/2011 | CN201756924U Hair plait automatic locating centralizer |
| 03/09/2011 | CN101984213A Multifunctional hydraulic workover rig |
| 03/08/2011 | CA2523768C Method and apparatus for testing and treatment of a completed well with production tubing in place |
| 03/03/2011 | WO2011026035A2 Rotation inhibiting apparatus |
| 03/03/2011 | WO2011023938A1 Activating compositions in subterranean zones |
| 03/03/2011 | WO2011023335A1 Handling device for drill pipes, especially devices known as pipe handlers or top drives with pipe handlers, and operating method therefor |
| 03/03/2011 | WO2010141585A3 Drill rod handler |
| 03/03/2011 | WO2010141231A3 Pipe stand transfer systems and methods |
| 03/03/2011 | WO2010135590A3 Alignment apparatus and method for a boom of a pipe handling system |
| 03/03/2011 | WO2010124194A3 Rotary blasthole drilling rig flexible jaw pipe positioner |
| 03/03/2011 | US20110048808 Feed unit |
| 03/03/2011 | US20110048739 Methods and apparatus for manipulating and driving casing |
| 03/03/2011 | US20110048738 System and method for direct drive pump |
| 03/03/2011 | US20110048737 Method of Preventing Dropped Casing String with Axial Load Sensor |
| 03/03/2011 | US20110048736 Crane Device and Method |
| 03/03/2011 | US20110048735 Well cap rod hanger |
| 03/03/2011 | US20110048733 Arrangements and systems for pipe handling |
| 03/03/2011 | US20110048695 Manifold and system for servicing multiple wells |
| 03/03/2011 | US20110048694 Gripper for coiled tubing injectors |
| 03/03/2011 | US20110048693 Apparatus and Method for Performing Earth Borehole Operations |
| 03/03/2011 | DE102009039022A1 Handhabungsgerät für Bohrgestänge, insbesondere so genannter Pipehandler oder so genannter Topdrive mit Pipehandler, und Betriebsverfahren dafür Drill pipe handling apparatus, in particular so-called pipehandler or so-called top drive with pipehandler, and operating method therefor |
| 03/03/2011 | CA2771698A1 Activating compositions in subterranean zones |
| 03/02/2011 | EP2288784A1 Drill rod spinner device |
| 03/02/2011 | EP2288783A2 Method of controlling torque applied to a tubular connection |
| 03/02/2011 | EP2288782A2 Landing string compensator |
| 03/02/2011 | CN201753588U Hydraulic dismounting device for drill pipe |
| 03/02/2011 | CN201753587U Aperture hydraulic clamper |
| 03/02/2011 | CN201753586U Safe and effective multi-functional rope hanger apparatus |
| 03/01/2011 | US7896111 Gripping tool with driven screw grip activation |
| 03/01/2011 | US7896099 Upper beam for a telescopic feeder, telescopic feeder and drilling device for rock drilling |
| 03/01/2011 | US7896096 Hydraulic drilling machine for working in a small space |
| 03/01/2011 | US7896084 Apparatus and methods for tubular makeup interlock |
| 02/28/2011 | CA2699906A1 Improved gripper for coiled tubing injectors |
| 02/28/2011 | CA2677440A1 Well cap rod hanger |
| 02/24/2011 | WO2011022576A2 Load distributing apparatus and method |
| 02/24/2011 | WO2011021943A1 Gripper for petroleum pipes |
| 02/24/2011 | WO2011020196A1 An apparatus and method for containing fluid or gas released from a pipe |
| 02/24/2011 | WO2010126990A3 Variable force/variable frequency sonic drill head |
| 02/24/2011 | WO2010120701A3 Ocean floor deep-sea submerged deck |
| 02/24/2011 | WO2010102077A4 System and method of using a saver sub in a drilling system |
| 02/24/2011 | WO2010093577A3 Free standing steel catenary risers |
| 02/24/2011 | WO2009135047A3 Mobile hydraulic workover rig |
| 02/24/2011 | WO2008044101A3 System for conducting jointed pipe and coiled tubing operations |
| 02/24/2011 | US20110044787 Pipe-handling apparatus and methods |
| 02/24/2011 | US20110042102 Method of and kit for installing a centralizer on a pipe segment |