| 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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| 05/01/2013 | CN202913982U Self-rotating type multifunctional rope suspension machine |
| 05/01/2013 | CN202913971U Double-coupling rod post and lifting and dropping suite thereof |
| 05/01/2013 | CN202913968U Double-coupling pipe post and lifting and dropping suite thereof |
| 05/01/2013 | CN103080460A Device for an elevator bail and method of using same |
| 05/01/2013 | CN103075121A Integrated micro-elastic casing centralizer and production method thereof |
| 05/01/2013 | CN103075120A Top drive apparatus and method for gripping a tubular |
| 05/01/2013 | CN103075119A 加力装置 Augmentor |
| 05/01/2013 | CN103075118A Elevator pin shaft assembly, elevator and rotary drilling rig |
| 05/01/2013 | CN103075104A Rotary drilling rig and working device thereof |
| 05/01/2013 | CN103075103A Self-walking shale gas drilling machine |
| 05/01/2013 | CN103075101A Mining multi-logical protection loop and multi-linkage functional drill hydraulic system |
| 05/01/2013 | CN103072925A Oil cylinder driven rotating mechanism |
| 05/01/2013 | CN102022089B Array type cluster well group workover operation device and operation method thereof |
| 05/01/2013 | CN101438026B Method and device for coupling or separating tubular segment and tubular column |
| 04/30/2013 | US8430177 Method of expanding a tubular element in a wellbore |
| 04/30/2013 | US8430175 Equipment for intercepting and diverting a liquid circulation flow |
| 04/25/2013 | WO2013059256A1 Dynamic riser string hang-off assembly |
| 04/25/2013 | WO2013059122A1 Riser string hang-off assembly |
| 04/25/2013 | WO2013059121A1 Gooseneck conduit system |
| 04/25/2013 | WO2012177559A3 Gooseneck conduit system |
| 04/25/2013 | WO2012165951A3 Drilling rig for moving a tubular and automatic tripping |
| 04/25/2013 | WO2012148956A3 Flange overshot retrieval tool |
| 04/25/2013 | WO2012148955A3 Flange separation and retrieval tool |
| 04/25/2013 | WO2012061506A3 A drilling system and a device for assembling and disassembling pipe stands |
| 04/25/2013 | WO2012033793A8 Two speed direct drive drawworks |
| 04/25/2013 | US20130098606 Manipulatable spider components adapted for cooperation with a vertically reciprocating control line guide |
| 04/25/2013 | CA2793808A1 Rod clamping devices for hanging or pulling rod strings in a wellbore |
| 04/24/2013 | EP2584138A2 Apparatus and methods for wedge lock prevention |
| 04/24/2013 | CN202900098U Flexible tube guiding support |
| 04/24/2013 | CN202900097U Continuous oil pipe clamp mechanism |
| 04/24/2013 | CN202900096U Supporting mechanism for fixing high-pressure rotation connector |
| 04/24/2013 | CN202900095U Tightening device of coupling |
| 04/24/2013 | CN202900094U Power tongs bearing protective jacket of continuous circulation well drilling system |
| 04/24/2013 | CN202900093U Combined tubing pillow |
| 04/24/2013 | CN202900092U Oil tube automatic restoration device |
| 04/24/2013 | CN202900091U Convenient well logging steel wire clamp |
| 04/24/2013 | CN202900090U Double-travelling slip device for continuous trip of pipe column of mine well of oil field |
| 04/24/2013 | CN202900089U A polish rod lift elevator |
| 04/24/2013 | CN202900088U Oil pipe elevator |
| 04/24/2013 | CN202900087U Rod elevator |
| 04/24/2013 | CN202900086U Drilling tool lifting device |
| 04/24/2013 | CN202900085U Hair braid twisting prevention device for oil pumping unit |
| 04/24/2013 | CN202900084U Beam hanger apparatus capable of detecting load signal |
| 04/24/2013 | CN202900083U Novel multifunctional beam hanger |
| 04/24/2013 | CN202900082U Protective sleeve for all-casing full-circle-swinging drilling machine clamping device |
| 04/24/2013 | CN202900081U Pipe column hoisting device |
| 04/24/2013 | CN202900080U Pipe column hoisting device |
| 04/24/2013 | CN202900079U Multifunctional at-sea workover rig |
| 04/24/2013 | CN202900036U Deep hole geological prospecting drilling machine |
| 04/24/2013 | CN202899142U Locating device of drilling rod at bottom of foundation trench |
| 04/24/2013 | CN103069096A Two pipe horizontal directional drilling system |
| 04/24/2013 | CN103061695A Low-stress point-indented abrasive-surface tong die and manufacturing method thereof |
| 04/24/2013 | CN103061694A Automatic rod feeding manipulator used for mine field well drilling |
| 04/24/2013 | CN103061693A Oil cylinder counter-supporting type reinforced gripper |
| 04/24/2013 | CN103061692A Automatic running and pulling system of oilfield workover string |
| 04/24/2013 | CN103061680A Sliding frame, power device and rotary drilling rig |
| 04/24/2013 | CN102287149B Hydraulic power slip of drill rod |
| 04/24/2013 | CN102242611B Automatic rod fetching system for seafloor cone detection and drilling integrated device |
| 04/24/2013 | CN102182409B Continuous tube guiding device |
| 04/24/2013 | CN102022106B Drill stem connector automatic screwing control device and method |
| 04/24/2013 | CN101427001B Apparatus and method for running tubulars |
| 04/23/2013 | US8425171 Pipe handling system and method |
| 04/23/2013 | US8424939 Tri-cam axial extension to provide gripping tool with improved operational range and capacity |
| 04/23/2013 | US8424616 Track guiding system |
| 04/23/2013 | US8424419 Breakout wrench system |
| 04/23/2013 | CA2730562C Tricam axial extension to provide gripping tool with improved operational range and capacity |
| 04/23/2013 | CA2722096C Method of controlling torque applied to a tubular connection |
| 04/23/2013 | CA2638009C Upper beam for a telescopic feeder, telescopic feeder and drilling device for rock drilling |
| 04/18/2013 | WO2013028517A3 Universal pipe thread protector |
| 04/18/2013 | WO2013016097A3 System and method for production of reservoir fluids |
| 04/18/2013 | WO2013012572A3 Frangible slip for downhole tools |
| 04/18/2013 | WO2012156751A3 Connector |
| 04/18/2013 | DE102011115895A1 Quick core tube for boring rock during formation of well, has friction reducing unit to reduce wall friction during feeding or raising of tube, and holding elements lowered or pulled up by drill string |
| 04/18/2013 | CA2849272A1 Locking mechanism |
| 04/17/2013 | CN202883992U Transfer case rear control mechanism used for oil well workover rig |
| 04/17/2013 | CN202882804U Shackle device of sucker rod |
| 04/17/2013 | CN202882803U Spinning wrench for iron roughneck |
| 04/17/2013 | CN202882802U Simple ground reversing device |
| 04/17/2013 | CN202882801U Self-adjusting sucker rod coupling clamping tooth |
| 04/17/2013 | CN202882800U Piston-type rat hole drilling fluid extracting device |
| 04/17/2013 | CN202882799U Drilling platform three-joint unit bidirectional arrangement device |
| 04/17/2013 | CN202882798U Drilling platform three-joint unit unidirectional arrangement device |
| 04/17/2013 | CN202882797U Normally-closed type hydraulic chuck for drilling machine of coal miner |
| 04/17/2013 | CN202882796U Pair clamping device for full-casing full-rotary drill |
| 04/17/2013 | CN202882795U Full hydraulic energy-saving belt pressing operation combination device |
| 04/17/2013 | CN103046882A Quick mounting and demounting device for drill stem of raise boring machine |
| 04/17/2013 | CN103046881A Automatic column moving device for workover |
| 04/17/2013 | CN103046880A Front-arranged hydraulic energy storage workover rig |
| 04/17/2013 | CN103046865A Power source conveying device of hydraulic drill |
| 04/17/2013 | CN102242612B Automatic storage system for drill stem |
| 04/17/2013 | CN102230364B Automatic operation device of upper drill floor and lower drill floor of drill rod |
| 04/17/2013 | CN102140898B Coiled tubing clamping device and injection head using same |
| 04/17/2013 | CN101832115B High-torque hydraulic pipe-wrenching machine for wrenching and disassembling outer-flat drilling rod |
| 04/16/2013 | US8419335 Pipe handling apparatus with stab frame stiffening |
| 04/16/2013 | US8418766 Underwater connection installation |
| 04/16/2013 | CA2621570C Power tong |
| 04/16/2013 | CA2340994C Method and apparatus for connecting tubulars using a top drive |
| 04/11/2013 | WO2013050978A2 Tubular apparatus for the continuous completion of hydrocarbon wells, and corresponding laying method |
| 04/11/2013 | WO2012104309A3 Production unit for use with dry christmas trees |
| 04/11/2013 | WO2012092914A3 Dual rotational and axial load pick-up element |