Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 19 - Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
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)
04/2014
04/30/2014CN103758471A Portable well repair tubular column shifting and conveying device
04/30/2014CN103758470A Variable-angle catwalk driving cart
04/30/2014CN103758469A Automatic locking device for pipe column placement in pipe finger of racking platform
04/30/2014CN103758468A Novel large drift diameter hydraulic slip capable of achieving passive locking
04/30/2014CN103758467A Polish rod clamp
04/30/2014CN102654039B Elevator tool capable of automatically switching on and off lift ring openings and use method
04/30/2014CN102561978B Long-stroke no-killing well working device of oil-water well
04/30/2014CN102434111B Hydraulically-driven two-stage-feed dovetail-groove-guide symmetrically-arranged anchor rod drilling machine
04/30/2014CN102089492B Grip extension linkage to provide gripping tool with improved operational range, and method of use of the same
04/29/2014US8708055 Apparatus and methods for wedge lock prevention
04/26/2014CA2831233A1 Centrifugal backspin brake
04/25/2014CA2821010A1 Casing puller
04/24/2014WO2014062814A2 Pipe drive sealing system and method
04/24/2014WO2014062516A1 Pressure actuated ported sub for subterranean cement completions
04/24/2014WO2014062172A1 Drill string constant velocity connection
04/24/2014US20140110174 Simultaneous Tubular Handling System
04/24/2014US20140110173 Apparatus and method for servicing pipes
04/24/2014US20140110135 Method and Apparatus for Elevator Hobble Compensation
04/23/2014CN203559824U Mechanical limiting and centering mechanism for iron roughneck tong head
04/23/2014CN203559823U Novel detachable type clamping mechanism of coiled tubing injection head
04/23/2014CN203559822U Front handle structure of shell of twisting machine
04/23/2014CN203559821U Guide rod structure for twisting machine
04/23/2014CN203559820U Clamping mechanism for twisiting machine
04/23/2014CN203559819U Connection structure of diamond circle wrenches
04/23/2014CN203559818U Retractable snub line pile
04/23/2014CN203559817U Tong head floating mechanism for iron roughneck
04/23/2014CN203559816U Portable rat-hole scabbard for well drilling and repairing
04/23/2014CN203559815U Holder
04/23/2014CN203559814U Clamping ring for core drill
04/23/2014CN203559813U Combined slip recess for clamp
04/23/2014CN203559812U Elastic caliper on drill rod
04/23/2014CN203559811U Back rope device with self-adaptive tensioning force
04/23/2014CN203559810U Rotatable elevator
04/23/2014CN203559809U Deviation-adjusting and centering device for adding packing into pumping well and taking packing out of pumping well
04/23/2014CN203559808U Drill-deviation-prevention device of core drill
04/23/2014CN203559807U Automatic lifting device for oil pipe
04/23/2014CN203559776U Guiding and locking mechanism suitable for driving head of sleeve pipe
04/23/2014CN203558796U A piling machinery power head pressurizing control circuit
04/23/2014CN103748312A Systems and methods for locking swivel joints when performing subterranean operations
04/23/2014CN103742087A Integrated type automatic thread screwing-unscrewing device
04/23/2014CN103742086A Long spiral drilling machine drill rod automatic clamping device
04/23/2014CN103742085A Anti-single lifting ring accident prompting device
04/23/2014CN102305039B Continuous oil pipe heave compensation device
04/23/2014CA2830702A1 Apparatus and method for servicing pipes
04/22/2014US8701791 Post extractor
04/22/2014US8701784 Tongs triggering method
04/22/2014US8701754 Coiled tubing injector with strain relief
04/22/2014CA2807464C Pipe stand
04/22/2014CA2547285C Coiled tubing drilling rig
04/17/2014WO2014059396A1 Selective deployment of underreamers and stabilizers
04/17/2014WO2014059179A2 Cable injector for deploying artificial lift system
04/17/2014WO2014059086A1 Non-threaded tubular connection
04/17/2014WO2014059081A1 Selective orientation and location system
04/17/2014WO2014058412A1 System and method for circumferentially aligning a downhole latch subsystem
04/17/2014WO2014058327A1 Pipe connection tool and methods
04/17/2014WO2014057507A1 Drilling vessel
04/17/2014WO2014056409A1 Method of continuously raising and lowering oilfield shaft drillstring and twin travelling slips apparatus
04/17/2014WO2014056092A1 Tool for gripping tubular items
04/17/2014US20140102721 Cable injector for deploying artificial lift system
04/17/2014US20140102714 Drilling tool system and method of manufacture
04/16/2014CN203547635U Integrated under-pressure operation device for oil well rods/tubes
04/16/2014CN203547602U Coiled tubing winding roller
04/16/2014CN203547601U Clamping wheel type coiled tubing injection head device
04/16/2014CN203547600U Orifice plate integrated structure and drill rig with orifice plate integrated structure
04/16/2014CN203547599U Automatic assembling and disassembling device for drill rod of drilling machine
04/16/2014CN203547598U Spiral blade drilling rod mounting and dismounting pipe device
04/16/2014CN203547597U Installation tool of gear drill teeth
04/16/2014CN203547596U Mechanical rotating arm for transforming drill rod
04/16/2014CN203547595U Quick change guide buckling device for mechanical well repairing operation machine
04/16/2014CN203547594U Quick pluggable mounting base of iron roughneck
04/16/2014CN203547593U Device for placing of small repair drill and oil tube
04/16/2014CN203547592U Novel drill collar lifting device
04/16/2014CN203547591U Overturn type combined pipe clamping device for mechanized remedial work machine
04/16/2014CN203547590U Clamping centering device for drill rod
04/16/2014CN203547589U Superficial layer horizontal well bushing counterweight
04/16/2014CN203547588U Anti-falling device for polished rod of pumping unit
04/16/2014CN203547587U Twisting prevention device for hair braids of pumping unit
04/16/2014CN203547586U Oil well jam release polish rod buffer
04/16/2014CN203547585U Automatic-leveling-type beam hanger for oil pumping unit
04/16/2014CN203547584U Self-balancing beam hanger for oil pumping unit
04/16/2014CN203547583U Tower-type support
04/16/2014CN203547582U Dead-line stabilizer for well drilling line
04/16/2014CN103726800A Drill rod positioning device and hydraulic pile machine
04/16/2014CN103726799A Injection head mounting device and injection head mounting method
04/16/2014CN102704869B Rod connecting and disconnecting device applicable to drill rod
04/16/2014CN102691484B Winch heave compensation device of marine floating drilling platform
04/16/2014CN102661128B Automatic drill pipe placing and withdrawing device
04/16/2014CN102654038B Cathead and rotary drilling rig
04/16/2014CN102424336B Rotary drilling rig and main winch placing down speed control device thereof
04/16/2014CN101970791B Sucker rod coupling extractor
04/16/2014CN101346528B Wedge device
04/16/2014CA2830335A1 Method and system for tightening threaded elements and certifying the connections and the devices for connecting threaded elements
04/15/2014US8696289 Cartridge tubular handling system
04/15/2014US8696288 Pipe handling boom pretensioning apparatus
04/15/2014US8696041 Self-aligning gripping assembly
04/15/2014US8695715 Cement head
04/15/2014US8695713 Function spool
04/15/2014US8695693 Wellhead component coupling system and method
04/15/2014CA2755363C Variable force/variable frequency sonic drill head
04/15/2014CA2624285C Lubricator for use with coiled tubing apparatus and universal rig having coiled tubing and top drive capability
1 ... 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 ... 172