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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12/05/2012 | CN202578571U Drill stem elevator for anti-slurry rotary drilling rig |
12/05/2012 | CN202578570U Installation structure of cathead and rotary drilling rig |
12/05/2012 | CN202578569U Protector for pulled-apart and falling polish rod |
12/05/2012 | CN202578568U Anti-twisting beam hanger for oil extractor |
12/05/2012 | CN202578567U Petroleum well drilling tool receiving and dismantling device |
12/05/2012 | CN202578566U Novel pedal guardrail |
12/05/2012 | CN202578565U Slide rail for oil workover rig |
12/05/2012 | CN202578564U Mechanism used for slideway folding device |
12/05/2012 | CN202578563U Novel racking platform overturning pedal railing |
12/05/2012 | CN202578562U Lifting device of drilling machine |
12/05/2012 | CN202578561U Safety anti-collision device for overhead travelling crane |
12/05/2012 | CN202578533U Novel racking platform flexible footboard railing |
12/05/2012 | CN202578509U Inclined and straight well driller |
12/05/2012 | CN102808587A Double-elastic-clamp in-place locking wire line coring suspension positioning mechanism |
12/04/2012 | US8322686 Apparatus for applying and removing rail clips onto rail ties |
12/04/2012 | US8322437 Method and system for confining and salvaging oil and methane leakage from offshore locations and extraction operations |
12/04/2012 | US8322436 Split assembly attachment device |
12/04/2012 | US8322412 Method of running a pipe string having an outer diameter transition |
12/04/2012 | CA2696269C Clamping and breaking device |
11/30/2012 | CA2778400A1 Electronic tong torque system and related methods of use |
11/29/2012 | WO2012162157A2 Formation treatment system and method |
11/29/2012 | WO2012161587A1 Method and arrangement for establishing and operating a riser less coiled tubing |
11/29/2012 | WO2012160544A1 Movement control system for a drilling plant |
11/29/2012 | WO2012106452A3 Coiled tubing module for riserless subsea well intervention system |
11/29/2012 | US20120298377 Velocity Strings |
11/29/2012 | US20120297933 Attachment for making up or breaking out pipe |
11/29/2012 | CA2837350A1 Movement control system for a drilling plant |
11/29/2012 | CA2837339A1 Wireline apparatus |
11/29/2012 | CA2834794A1 Formation treatment system and method |
11/28/2012 | EP2527584A2 Rod-mounting apparatus for a drilling apparatus |
11/28/2012 | EP2526251A2 Coiled tubing compensation system |
11/28/2012 | CN202560129U Petroleum casing engaging device |
11/28/2012 | CN202560128U A clamper and a shackle unit using the clamper |
11/28/2012 | CN202560127U Oil pipe lifting device for well workover operation |
11/28/2012 | CN202560126U Auxiliary operation tool for pneumatic handheld help anchor rod drilling machine |
11/28/2012 | CN202560125U Well drilling mouth elevator transporting device |
11/28/2012 | CN202560096U Telescopic boom open rock drilling wagon with drill rod changing device |
11/28/2012 | CN102803645A Drilling system and method of operating a drilling system |
11/28/2012 | CN102803643A Device and method for drilling with continous tool rotation and continous drilling fluid supply |
11/28/2012 | CN102797424A Rotation device for drill rod |
11/28/2012 | CN102797423A Drilling rod conveying device for drilling type coal mining machine |
11/28/2012 | CN102155156B High-speed hydraulic drilling machine |
11/28/2012 | CN101365860B Apparatus for gripping a tubular on a drilling rig |
11/28/2012 | CN101287887B Pipe running tool having wireless telemetry |
11/27/2012 | US8317448 Pipe stand transfer systems and methods |
11/27/2012 | US8316954 Apparatus and method for separating a downhole tubular string into two parts |
11/27/2012 | US8316947 System and method for deployment of a subsea well intervention system |
11/27/2012 | US8316932 Wellbore system |
11/27/2012 | US8316930 Downhole tubular connector |
11/27/2012 | US8316929 Tubular guiding and gripping apparatus and method |
11/27/2012 | CA2680806C Methods and apparatus for make up and break out of tubular connections |
11/27/2012 | CA2547707C Holding wrench for rock drilling machine and rock drilling machine including such a holding wrench |
11/22/2012 | WO2012159062A2 Seal around braided cable |
11/22/2012 | WO2012158900A2 Managing tensile forces in a cable |
11/22/2012 | WO2012158823A1 Floating vessel for supporting well head surface equipment |
11/22/2012 | WO2012158261A1 Easy drill slip with degradable materials |
11/22/2012 | WO2012156320A1 Device for attaching a first element to a retaining flange of a second element, associated installation and method |
11/22/2012 | WO2012125404A3 Remote subterranean tool activation system |
11/22/2012 | WO2012118851A3 Disconnect assembly for cylindrical members |
11/22/2012 | US20120292116 Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods |
11/22/2012 | US20120292051 Seal around braided cable |
11/22/2012 | US20120292048 Managing Tensile Forces in a Cable |
11/22/2012 | US20120292046 Cement head |
11/22/2012 | US20120292032 Wellbore treatment apparatus and method |
11/22/2012 | US20120292010 Apparatus and methods for tubular makeup interlock |
11/22/2012 | CA2835739A1 A restraining device for a tensioner assembly |
11/22/2012 | CA2835638A1 Seal around braided cable |
11/22/2012 | CA2834715A1 Easy drill slip with degradable materials |
11/22/2012 | CA2834071A1 Multi-position mechanical spear for multiple tension cuts while removing cuttings |
11/21/2012 | EP2524106A2 Electric subsea coiled tubing injector apparatus |
11/21/2012 | EP2524105A2 Drilling machine and method |
11/21/2012 | CN202544776U Hydraulic rod centralizer of raise boring machine |
11/21/2012 | CN202544775U Direct transmission type hydraulic powered back-up tong with multi-tong dies |
11/21/2012 | CN202544774U Drilling tool automatic exhaust device |
11/21/2012 | CN202544773U Well-drilling auxiliary mousehole structure |
11/21/2012 | CN202544772U Guide track beam for propulsion of rock drilling machine |
11/21/2012 | CN202544771U Propulsion beam structure for rock drilling |
11/21/2012 | CN202544770U Anti-deflection rope hanger of oil pumping unit |
11/21/2012 | CN202544769U Lifting rope sealer of oil pumping machine |
11/21/2012 | CN202544768U Electric pulley block for oil pipe |
11/21/2012 | CN202544741U Door-shaped drive drilling machine with twin tower teeth |
11/21/2012 | CN1930363B Clamping apparatus, drill string component and rock drilling rig |
11/21/2012 | CN102787814A Semi-automatic rod replacing device of hydraulic rock drilling rig |
11/21/2012 | CN102787813A Intelligent full-hydraulic power catwalk |
11/21/2012 | CN101967961B Hydraulic lifting device special for workover operation tubes and rods |
11/21/2012 | CN101539002B Flexible automatic reverse intelligent oil pumping machine |
11/21/2012 | CN101509366B Weight dropper machine controlled door case type petroleum pumping unit |
11/21/2012 | CN101278103B Pipe-handling apparatus |
11/20/2012 | US8312937 Battery for a power tool with a battery pack ejector |
11/20/2012 | US8312934 Control line retention and method for retaining control line |
11/20/2012 | US8312933 Marine drilling riser system |
11/20/2012 | US8312932 Capillary hanger arrangement for deploying control line in existing wellhead |
11/15/2012 | WO2012012559A4 Inflatable restraint system |
11/14/2012 | EP2521835A2 Rotating continuous flow sub |
11/14/2012 | EP2521834A2 Method and apparatus for supplying drill pipes to and removing them from a drilling apparatus |
11/14/2012 | CN202531061U Fixture mechanism of rod replacing mechanism of deep sea drilling machine |
11/14/2012 | CN202531060U Automatic borer change control system of rock drilling carriage |
11/14/2012 | CN202531059U Pipe column compression device |
11/14/2012 | CN202531058U Running and pulling oil pipe hydraulic controlled elevator |
11/14/2012 | CN202531057U Pliers-like lifting mechanism |