Patents for E21B 15 - Supports for the drilling machine, e.g. derricks or masts (4,619) |
---|
08/17/2011 | CN102155168A Large triangular structure derricking mechanism for rotary drilling rig with auxiliary jacking mechanism |
08/17/2011 | CN102155161A Novel omnibearing drill boom of drill loader |
08/10/2011 | EP1751390B1 Apparatus and method for modified horizontal directional drilling assembly |
08/10/2011 | CN201927955U 新型丛式折叠管线槽 The new cluster folding line slots |
08/10/2011 | CN201924837U 自动折叠人字架 Automatic folding GABLE |
08/10/2011 | CN201924836U 石油钻机井架无顶层底座 No top-level base oil derrick |
08/10/2011 | CN201924829U Mining deep hole drill carriage unit |
08/10/2011 | CN102146770A Drill boom beam structure of propelling beam capable of rotating by 360 degrees |
08/10/2011 | CN101655001B Underground workshop rock wall beam trench steel tube drilling sample frame and construction method thereof |
08/03/2011 | CN201915849U 一种用于防突钻机上的滑动支架 A method for preventing sudden slide bracket on the rig |
08/03/2011 | CN201915848U 轻便带压作业平台 Light-pressure work platform |
08/03/2011 | CN201915847U 旋挖钻机用三角形连接臂 Rotary drilling rig with a triangle connecting arm |
08/03/2011 | CN201915834U 多功能钻机 Multifunctional Drilling Rig |
08/03/2011 | CN201915833U 一种山地钻机 One kind of mountain rig |
08/03/2011 | CN201915832U Lifting and supporting structure of mine deep hole drilling rig |
08/03/2011 | CN201915826U 一种钻进系统及钻进设备 One kind of drilling systems and drilling equipment |
08/03/2011 | CN201915824U 一种兼具地下连续墙施工功能的汽车旋挖钻机 Underground continuous wall construction that is both functional car rotary drilling rig |
08/03/2011 | CN201915817U 二次折叠式笼梯 Secondary folding ladder cage |
08/03/2011 | CN201915407U 伸缩桩架 Telescopic pile frame |
08/03/2011 | CN102144072A Feed mechanism for drilling systems |
08/03/2011 | CN102140891A Variable-position overhead crane drill tower |
08/03/2011 | CN101575946B Linkage operation method of three derricks on ocean platform |
08/02/2011 | CA2666892C Construction apparatus with pivotable mast |
07/27/2011 | CN201908578U Hydraulic drill frame for drilling holes on anti-impact walls |
07/27/2011 | CN201908565U Base plate anchor rope drilling machine for coal mine tunnel |
07/27/2011 | CN102137982A Multi-function multi-hole drilling rig |
07/27/2011 | CN102137788A Floating oil storage system and method |
07/27/2011 | CN102134968A Drilling system and drilling equipment |
07/27/2011 | CN102134966A Cutting drilling machine |
07/27/2011 | CN101581198B Overhead hoisting and butt-joint method for box-type headframe |
07/27/2011 | CN101040098B Housing arrangement |
07/20/2011 | EP2345764A1 Telescopic leader mast |
07/20/2011 | CN201902217U Pressure adjusting device on anchor rod drill machine |
07/20/2011 | CN201902172U Drilling line abrasion-proof device for headframe of drilling machine |
07/20/2011 | CN201902171U Rotary support tray adopting hydraulic drive |
07/20/2011 | CN201902170U Modularized drilling machine base |
07/20/2011 | CN201902168U Pipe roofing drilling machine with prepositive and postpositive synchronous double-turntable mechanism |
07/20/2011 | CN201902167U Pipe shed drilling rig with front lifting mechanism and rear lifting mechanism |
07/20/2011 | CN201902160U Drilling machine capable of quarrying stone in cave/channel and drilling device |
07/20/2011 | CN101575942B Pneumatic anchor rod hammer drill |
07/14/2011 | WO2011085194A1 Power screwdriver having rotary input control |
07/14/2011 | US20110168402 Offshore unit and method of installing wellhead platform using the offshore unit |
07/13/2011 | CN201896587U Support structure of mining drill carriage |
07/13/2011 | CN201896585U Pipe-roof drilling rig with synchronous-traversing rotary table |
07/13/2011 | CN201896577U Wire pole pit boring machine |
07/12/2011 | US7975771 Method for running casing while drilling system |
07/12/2011 | CA2492618C Portable fluid containment pad |
07/06/2011 | EP2340348A2 Drilling station |
07/06/2011 | CN201891389U Self mounting/dismounting device of rotary drilling rig |
07/06/2011 | CN102116136A Reverse circulation drill and gripper for same |
07/06/2011 | CN101575945B Desert guy line pile |
07/06/2011 | CN101575944B Guy line pile |
06/29/2011 | EP2337922A2 Drilling rig and mounting method therefor |
06/29/2011 | EP2337921A1 Articulation assembly for moving a drill mast |
06/29/2011 | CN201885703U Oil derrick calibration instrument in oil field |
06/29/2011 | CN201883951U Overturn prevention device of piling machine |
06/29/2011 | CN201883950U Foldable telescopic chassis of sampling drilling rig |
06/29/2011 | CN201883940U Electrically-driven lifting punching machine |
06/29/2011 | CN201883934U Hydraulic lifting type roof punching machine |
06/29/2011 | CN102108837A Method and device for moving drilling derrick on marsh or mudflat |
06/29/2011 | CN101538987B Anchoring drilling machine based on working mode of double-pump complementation automatic merging |
06/29/2011 | CN101509354B External hanging drilling slot for platform |
06/23/2011 | WO2011075493A1 Mining machine with booms providing enhanced rib access |
06/23/2011 | WO2011074951A1 A drilling installation |
06/22/2011 | CN201874479U Construction frame for horizontal drilling in bridge section sound barrier |
06/22/2011 | CN201874478U Tower hoisting device for drilling rig tower |
06/22/2011 | CN201874477U Hydraulic support self-locking device |
06/22/2011 | CN201874476U Horizontal extension mechanism for trapezoidal K-shaped derricks |
06/22/2011 | CN201874475U Low-position installation sleeve-type derrick |
06/22/2011 | CN201874458U Full-automatic lifting electric drilling rig |
06/22/2011 | CN201874457U Cluster well drilling machine conveying device |
06/22/2011 | CN201874452U Hydraulic drill part |
06/22/2011 | CN201874451U Drilling device of hydraulic drilling machine |
06/22/2011 | CN102102487A Multifunctional hydraulic pile hammer |
06/22/2011 | CN101260785B Drill carriage front and back supporting structure |
06/16/2011 | WO2011071757A2 Multi-function multi- hole drilling rig |
06/16/2011 | US20110139043 Drilling platform |
06/16/2011 | CA2783675A1 Multi-function multi-hole drilling rig |
06/15/2011 | EP2332822A2 Drillship or semi-submersible and multi-activity drilling assembly |
06/15/2011 | CN201865589U Rotating mechanism of drill impelling beam |
06/15/2011 | CN201865588U Multifunctional pile rack |
06/15/2011 | CN201865587U Rotary drilling rig and mast seat thereof |
06/15/2011 | CN201865586U Engineering machinery and mast base thereof |
06/15/2011 | CN201865585U Multifunctional fast drilling machine rack |
06/15/2011 | CN201865574U Integral core drilling machine of multifunctional self-walking type tower crane |
06/15/2011 | CN201865573U Crawler drill for belt-span drilling |
06/15/2011 | CN201865572U Novel rotary drilling rig |
06/15/2011 | CN201865565U Rotary drilling rig |
06/15/2011 | CN201865564U On-board rotary drilling rig |
06/15/2011 | CN201865134U Salt lake drilling grooving machine |
06/15/2011 | CN102094579A Full-hydraulic tire rock drilling anchoring drill carriage |
06/15/2011 | CN101133228B Damping device for an output shaft in a gearbox |
06/09/2011 | US20110132664 Drill mast articulation assembly |
06/08/2011 | EP2329094A1 Feed mechanism for drilling systems |
06/03/2011 | WO2011065836A1 Device for a towel for well operations and use of same |
06/01/2011 | DE10113561B4 Vorschubvorrichtung für eine Ramm- und/oder Bohrvorrichtung Feeding device for driving and / or drilling device |
06/01/2011 | CN201851021U Rotary drill platform leveling control system |
06/01/2011 | CN201851020U Claw type support mechanism for tunnel drilling rig |
06/01/2011 | CN201851010U Rotary drilling rig |
06/01/2011 | CN201851002U PLC (Programmable Logic Controller) controlled frequency conversion pile driver |