| 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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| 03/27/2013 | CN202832295U Improved well drilling conveying device |
| 03/27/2013 | CN202832294U Multiple-angle drill rod frame device |
| 03/27/2013 | CN202832293U Well repair operation pipe rod conveyor |
| 03/27/2013 | CN202832292U Electro-hydraulic control device for tube pole conveyor of workover treatment |
| 03/27/2013 | CN202832291U Multifunctional micro-indentation pneumatic slip |
| 03/27/2013 | CN202832290U Hydraulic slip |
| 03/27/2013 | CN202832289U Traveling slips achieving pressure lifting in optional positions of downhole tubing string |
| 03/27/2013 | CN202832288U Drilling machine pulling plate mechanism |
| 03/27/2013 | CN202832287U Combined type elevator |
| 03/27/2013 | CN202832286U Novel dead line stabilizer |
| 03/27/2013 | CN202832285U Plug pin type pumping unit beam hanger |
| 03/27/2013 | CN202832284U Suspension device of small-sized drilling rig |
| 03/27/2013 | CN202832283U Drilling machine slewing clamping device |
| 03/27/2013 | CN202832282U Linked system of drilling machine |
| 03/27/2013 | CN202832281U Hydraulic pressure foldable coiled tubing guiding device |
| 03/27/2013 | CN202832280U Lashing wire device |
| 03/27/2013 | CN202832229U Rotary drilling rig night self-luminous pulley |
| 03/27/2013 | CN202832201U Vehicle-mounted workover rig without guy rope |
| 03/27/2013 | CN102996085A Horizontal directional drilling machine drill rod positioning device linked with power head |
| 03/27/2013 | CN102996084A Chain transmission device of rock drilling machine |
| 03/27/2013 | CN102996083A Continuous tube injection head |
| 03/27/2013 | CN102996082A Rod replacement device of rock drilling machine |
| 03/27/2013 | CN102996073A Small module assembled offshore platform drilling machine |
| 03/27/2013 | CN102996067A Hanging ring adapter with oppositely-opened top drive |
| 03/27/2013 | CN102003153B Method for suspending trip and device thereof |
| 03/27/2013 | CN101512099B A top drive apparatus for drilling a bore hole |
| 03/27/2013 | CN101137817B Rock drilling device and drill rig incorporating a device for measuring the location of the drilling machine |
| 03/26/2013 | US8406590 Apparatus for manufacturing an optical cable and cable so manufactured |
| 03/26/2013 | US8403066 Control line hybrid junction assembly |
| 03/26/2013 | US8403058 Offshore unit and method of installing wellhead platform using the offshore unit |
| 03/26/2013 | US8403057 Wellhead connection |
| 03/26/2013 | US8403034 Device and method for maintaining constant pressure on, and flow drill fluid, in a drill string |
| 03/22/2013 | CA2759139A1 Torque reaction device for pipe running tool |
| 03/21/2013 | WO2013039670A1 Completing a multi-stage well |
| 03/21/2013 | WO2013009617A3 Methods of limiting or reducing the amount of oil in a sea using a fluid director |
| 03/21/2013 | US20130073227 System and method for testing fluid seals for leaks |
| 03/21/2013 | US20130068490 Two pipe horizontal directional drilling system |
| 03/21/2013 | US20130068478 Permeable lost circulation drilling liner |
| 03/21/2013 | US20130068477 Apparatus and method for facilitating the connection of tubulars using a top drive |
| 03/21/2013 | CA2846203A1 Completing a multi-stage well |
| 03/20/2013 | EP2569504A1 System and metod for conducting drilling and coring operations |
| 03/20/2013 | CN202811986U Belt tip connecting device |
| 03/20/2013 | CN202811895U Pneumatic clutch mechanism for automatic bit feeder |
| 03/20/2013 | CN202811616U Hydraulic oil cylinder for oil workover elevator |
| 03/20/2013 | CN202810718U Skid-mounted explosion-proof continuous tubing equipment |
| 03/20/2013 | CN202810717U Continuous oil pipe moving hanger |
| 03/20/2013 | CN202810716U Oil cylinder drive rod-replacing machine |
| 03/20/2013 | CN202810715U Semi-automatic bar changing device of hydraulic pressure rock drilling driller |
| 03/20/2013 | CN202810714U Self-swing type shackle device |
| 03/20/2013 | CN202810713U Drill stem rotating device |
| 03/20/2013 | CN202810712U Novel cathead rope guide |
| 03/20/2013 | CN202810711U Jaw plate capable of being freely separated from rod |
| 03/20/2013 | CN202810710U Anti-drop-type circular pressurizer |
| 03/20/2013 | CN202810709U Multiply-combined traceless polish rod clamp device of oil extracting well |
| 03/20/2013 | CN202810708U Hydraulic driving system for oil workover elevator |
| 03/20/2013 | CN202810707U Special elevator for petroleum drilling |
| 03/20/2013 | CN202810706U Self-centering block of oil workover rig |
| 03/20/2013 | CN202810705U Adjustable rope hanger for hair braids of oil pumping machine |
| 03/20/2013 | CN202810704U Beam hanger of tower type pumping unit |
| 03/20/2013 | CN202810703U Pay-off rack for wire ropes |
| 03/20/2013 | CN202810702U 修井机 Workover |
| 03/20/2013 | CN202810701U Pneumatic work-over rig |
| 03/20/2013 | CN202810700U Slipway folding mechanism for oil workover rig |
| 03/20/2013 | CN202810699U Load guy rope adjuster of workover rig |
| 03/20/2013 | CN202810687U Continuous tube well-drilling connector |
| 03/20/2013 | CN202810651U Outburst prevention crawler drilling machine for excavation roadway |
| 03/20/2013 | CN202808237U 7000m two-gear alternating current variable frequency petroleum drilling winch |
| 03/20/2013 | CN102985636A Method and apparatus for detecting tightness of threaded joints of drill rods |
| 03/20/2013 | CN102979475A Orifice blowout prevention and water blocking system and water blocking process of orifice blowout prevention and water blocking system |
| 03/20/2013 | CN102979465A Multifunctional maritime workover rig and operation method thereof |
| 03/20/2013 | CN102061892B Rotary drilling rig and drill rod assembly thereof |
| 03/20/2013 | CN101963047B Rotary drilling rig and hoister thereof |
| 03/20/2013 | CN101466591B Heaving movement compensation |
| 03/19/2013 | US8397837 Anti-collision system |
| 03/19/2013 | US8397828 Spoolable downhole control system and method |
| 03/19/2013 | US8397825 Hydraulic lubricating system and method of use thereof |
| 03/19/2013 | US8397801 System, method and apparatus for conducting earth borehole operations |
| 03/19/2013 | CA2722604C Spring-loaded rod handling device |
| 03/19/2013 | CA2675198C Drill stem guide and wrench apparatus |
| 03/14/2013 | WO2013036932A1 Helical bend restrictor |
| 03/14/2013 | WO2013034574A1 Method for connecting a flexible line to a structure of a fluid exploitation installation and associated connection device |
| 03/14/2013 | WO2013033848A1 Pulling clamp for continuous rod or coiled tubing strings |
| 03/14/2013 | WO2013022691A3 Multilateral location and orientation assembly |
| 03/14/2013 | WO2012141881A3 Pressure equalization apparatus and associated systems and methods |
| 03/14/2013 | US20130062126 Geological Drill |
| 03/14/2013 | US20130062074 External grip tubular running tool |
| 03/14/2013 | US20130062072 System and Method for Stimulating a Multi-Zone Well |
| 03/14/2013 | US20130062048 Pulling clamp for continuous rod or coiled tubing strings |
| 03/14/2013 | DE112011101697T5 Zweirohriges Horizontalbohrsystem Zweirohriges Boring |
| 03/14/2013 | CA2847832A1 A torque device for oil field use and method of operation for same |
| 03/14/2013 | CA2846856A1 Petroleum well intervention winch system |
| 03/13/2013 | EP2567059A1 Method and apparatus for opening threaded joints of drilling equipment |
| 03/13/2013 | EP2567058A1 Method and apparatus for detecting tightness of threaded joints of drill rods |
| 03/13/2013 | CN202788683U Button structure of folding key of automobile |
| 03/13/2013 | CN202788682U Clamping block |
| 03/13/2013 | CN202788681U Automatic drill rod replacement and connection mechanism |
| 03/13/2013 | CN202788680U Left hand thread no reversing high pulling torque back-off device |
| 03/13/2013 | CN202788679U Novel automatic tubular rod conveying machine |
| 03/13/2013 | CN202788678U Support rod mechanism of horizontal drilling machine |
| 03/13/2013 | CN202788677U Novel rat-hole tube |