| Patents for E21B 15 - Supports for the drilling machine, e.g. derricks or masts (4,619) |
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| 02/01/2012 | CN202131986U 打桩机 Hammers |
| 02/01/2012 | CN202131976U 全液压齿轮齿条钻机 Hydraulic rack and pinion rig |
| 02/01/2012 | CN202131972U 一种顶板植筋打眼快捷工具 One kind of roof anchorage drill Shortcut |
| 02/01/2012 | CN102337842A Thick coal seam fully mechanized mining working face omnibearing hydraulic drill |
| 01/25/2012 | EP2408998A1 Multi-ram drill rig and method of operation |
| 01/25/2012 | CN202125552U Metal-rubber vibration isolator with composite rigidity for oil rig |
| 01/25/2012 | CN202125254U Frame building block combination type anchoring drilling machine |
| 01/25/2012 | CN202125246U Convenient drilling machine moving device |
| 01/25/2012 | CN202125060U Simple punching frame |
| 01/25/2012 | CN102333934A Method for withdrawal and insertion of a drill pipe string in a borehole and also a device for use when practising the method |
| 01/25/2012 | CN102330540A Rotary supporting seat structure |
| 01/24/2012 | CA2624363C Apparatus and method for handling pipe sections |
| 01/18/2012 | CN202117571U Movable type tunnel top drilling machine |
| 01/18/2012 | CN202117561U Annular raise boring machine |
| 01/18/2012 | CN102322221A Pneumatic drill for hard rocks |
| 01/12/2012 | WO2011130659A4 Unconditionally stable floating offshore platforms |
| 01/11/2012 | CN202108421U Lifting mechanism for working platform |
| 01/11/2012 | CN202108420U Land headframe for duplex rig |
| 01/11/2012 | CN202108417U Pneumatic drill rig |
| 01/11/2012 | CN202105824U Dredging machine of underground filling pipeline of mine |
| 01/05/2012 | WO2012000077A1 Remotely operable underwater drilling system and drilling method |
| 01/05/2012 | DE102010030694A1 Device for carrying out work in e.g. off-shore wind power plant, has individual modules formed independent of each other, where modules include own supply of machinery, equipment and control device |
| 01/05/2012 | CA2802872A1 Remotely operable underwater drilling system and drilling method |
| 01/04/2012 | EP2401471A1 Method for withdrawal and insertion of a drill pipe string in a borehole and also a device for use when practising the method |
| 01/04/2012 | CN202100206U Pneumatic multipurpose rock drilling machine |
| 01/04/2012 | CN202100205U Ground connection supporting device for long spiral drilling machine |
| 01/04/2012 | CN202100204U Anti-leakage orifice support device |
| 01/04/2012 | CN202100192U Spiral ground pile drilling rig |
| 01/04/2012 | CN102305068A Development machine |
| 01/04/2012 | CN102305035A Device for adjusting centration of complete vehicle-mounted service machine to wellhead |
| 01/04/2012 | CN102305025A Anchor cable rig bracket |
| 01/04/2012 | CN102305024A Device for drilling machine for short-distance movement along rail and moving method thereof |
| 01/04/2012 | CN102304920A All-electric suspended wheel type remote control piling machine |
| 01/04/2012 | CN101984191B High pressure jet grouting pile driving machine |
| 01/04/2012 | CN101737014B Sinking headframe of large-diameter deep vertical shaft |
| 01/04/2012 | CN101550806B Method for implementing drilling machine accurate butt-joint |
| 12/28/2011 | CN202090898U 太阳能混合能源的采油平台 Solar energy mix of oil platforms |
| 12/28/2011 | CN202090844U 拱形钻机机架 Arch Rig Rack |
| 12/28/2011 | CN202090843U 钻机井架快速运移装置 Derrick rapid transport system |
| 12/28/2011 | CN202090842U 一种推进器的推进梁 One kind of propeller propulsion beams |
| 12/28/2011 | CN202090830U 带万向铰接副的多功能简易动臂双折液压钻机 Vice versatility with simple universal hinged bi-fold boom hydraulic drill |
| 12/28/2011 | CN202090827U 电动钻井机 Electric drilling machine |
| 12/28/2011 | CN102296933A 微型折叠式自动钻井机 Miniature folding automatic drilling machine |
| 12/28/2011 | CN102296932A 落地式室内天棚混凝土板底钻孔机构 Floor-to-ceiling interior concrete slab bottom drilling agency |
| 12/28/2011 | CN102296594A 电动履带多功能遥控桩机 Multi-function remote control electric crawler pile |
| 12/28/2011 | CN101575943B 一种液压高速钻机 A hydraulic high-speed drilling rig |
| 12/28/2011 | CA2744656A1 Apparatus having spaced apart and offset ladder rungs for interlocking and flexibly restraining service loops in an oil derrick to prevent entangling of the loops |
| 12/21/2011 | CN202081831U 四角钻塔地面起塔装置 From the four corners of the rig floor tower unit |
| 12/21/2011 | CN202081818U 旋挖式垃圾山钻井机 Rotary drilling rigs garbage mountain |
| 12/21/2011 | CN102287142A 一种全方位旋转的钻臂装置 One kind of boom-round rotating device |
| 12/21/2011 | CN102287141A 旋挖钻机变幅机构 Rotary Drilling Rig luffing mechanism |
| 12/21/2011 | CN102287135A 一种钻探设备 A method of drilling equipment |
| 12/21/2011 | CN102287134A 一种液压动力基桩钻孔机机构 A hydraulic power mechanism of pile drilling machine |
| 12/21/2011 | CN102287132A 全套管全回转钻机 A full tube full rotary drilling rig |
| 12/20/2011 | US8079426 Integrated drilling deck and bop handling |
| 12/14/2011 | CN202073502U 一种自升式石油钻井平台悬臂梁移动装置 A self-elevating mobile devices oil rig cantilever |
| 12/14/2011 | CN202073501U 落地式室内天棚混凝土板底钻孔机构 Floor-to-ceiling interior concrete slab bottom drilling agency |
| 12/14/2011 | CN202073500U 旋挖钻机变幅机构 Rotary Drilling Rig luffing mechanism |
| 12/14/2011 | CN202073496U 梯车用隧道钻孔机 Ladder vehicle tunnel boring machine |
| 12/14/2011 | CN202073082U 钻台旋转式悬臂梁结构 Rotary rig cantilever structure |
| 12/14/2011 | CN102278110A 一种可移动升降平台两臂顶帮锚杆锚索施工钻车 Removable, arms lifting platform to help anchor the top anchor drill rig construction |
| 12/14/2011 | CN102278072A 海床式钻机的液压自动调平系统及调平方法 Seabed rig hydraulic automatic leveling system and leveling methods |
| 12/14/2011 | CN102278071A 石油钻机井架整体可调式自拖移移运装置 Oil rig derrick adjustable drag since transshipment device |
| 12/14/2011 | CN102278064A 气动钻车 Pneumatic Drill |
| 12/14/2011 | CN102277981A 一种对钢筋混凝土构筑物水下钻切施工方法 A kind of reinforced concrete structures underwater drilling cut construction method |
| 12/08/2011 | US20110297446 Traveling and locking centralizer |
| 12/07/2011 | CN202064948U Ultra-low surface full hydraulic drilling type coal mining machine |
| 12/07/2011 | CN202064842U 齿轮齿条钻机 Rack and pinion rig |
| 12/07/2011 | CN202064841U 一种免梯冲击钻升降架 A no-impact drill lifting frame ladder |
| 12/07/2011 | CN202064840U 四钻杆柱钻机井架 Four drill derrick column |
| 12/07/2011 | CN202064839U 陆地钻机四钻杆柱双联井架 Land rig derrick double four drill column |
| 12/07/2011 | CN202064838U Fixing prop for integrally trailing drilling machine |
| 12/07/2011 | CN202064830U 采煤工作面用架柱式钻机系统 Coalface rig system with rack column |
| 12/07/2011 | CN202064828U 轨道式电动综合作业机 Rail-mounted electric machine integrated operations |
| 12/07/2011 | CN102268967A 钻机井架防碰撞保护装置 Derrick anti-collision protection device |
| 12/07/2011 | CN101418675B 一种水下管线涡激振动的抑制方法及装置 Underwater pipeline VIV suppression method and apparatus |
| 12/01/2011 | WO2011150363A1 Deepwater completion installation and intervention system |
| 11/30/2011 | CN202055821U 一种可移动升降平台两臂顶帮锚杆锚索施工钻车 Removable, arms lifting platform to help anchor the top anchor drill rig construction |
| 11/30/2011 | CN202055764U 一种海洋钻修机滑移底座 A MARINE drilling machine repair slip base |
| 11/30/2011 | CN202055763U 建筑顶板精确钻孔装置 Building roof precise drilling unit |
| 11/30/2011 | CN202055762U 一种折叠桅杆机构及旋挖钻机 A folding mast agencies and Rotary Drilling Rig |
| 11/30/2011 | CN202055761U 旋挖钻机及其变幅机构 Rotary drilling rig and luffing mechanism |
| 11/30/2011 | CN202055753U 旋挖钻机及其滑轮架运输固定装置 Rotary drilling rig and pulley frame transport fixtures |
| 11/30/2011 | CN202055748U 旋挖钻机 Rotary Drilling Rig |
| 11/30/2011 | CN101509355B 双钻杆传动装置及双钻杆瓦斯防突钻 Double drill gearing and double diamond drill gas outburst prevention |
| 11/29/2011 | US8066086 Sleeve arrangement |
| 11/23/2011 | CN202047755U Support for hand-held outburst prevention drilling machine |
| 11/23/2011 | CN202047754U Hard rock pneumatic drilling machine |
| 11/23/2011 | CN202047747U Vertical shaft type drilling machine having long feeding stroke |
| 11/23/2011 | CN202047574U Convenient drilling frame |
| 11/23/2011 | CN1749526B Drilling rig with a tool cartridge |
| 11/23/2011 | CN102251747A Arc-shaped drill rack |
| 11/23/2011 | CN102251744A Annular patio drilling machine |
| 11/22/2011 | US8061449 Housing arrangement |
| 11/17/2011 | WO2011140648A1 Pull-down method and equipment for installing well casing |
| 11/17/2011 | CA2799429A1 Pull-down method and equipment for installing well casing |
| 11/16/2011 | CN202039781U Multifunctional drilling device |
| 11/16/2011 | CN202039780U Drag-hanging mast structure |
| 11/16/2011 | CN202039779U Wear-resisting structure for drilling machine |
| 11/16/2011 | CN202039778U Pneumatic drilling machine support for horizontal smooth burst drilling |