| Patents for E21B 15 - Supports for the drilling machine, e.g. derricks or masts (4,619) |
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| 04/26/2012 | WO2012054440A2 Offshore tower for drilling and/or production |
| 04/25/2012 | CN202202817U 一种旋挖钻机 One kind of rotary drilling rig |
| 04/25/2012 | CN202202816U 一种全方位旋转的钻臂装置 One kind of full rotation of the drill arm means |
| 04/25/2012 | CN202202812U 一种钻车单支承摆缸侧摆机构 One kind Drill single cylinder side pendulum swing support mechanism |
| 04/25/2012 | CN202202810U 一种钻车连杆三铰点侧摆回转机构 One kind Drill rod three-point side pendulum swing hinge mechanism |
| 04/25/2012 | CN202202808U 履带式三臂多功能凿岩台车 Crawler three-arm multi-purpose drill rig |
| 04/25/2012 | CN202202806U 墙体开孔机 Wall tapping machine |
| 04/25/2012 | CN102428246A 多柱塞钻机及操作方法 Multi plunger rig and method of operation |
| 04/25/2012 | CN102425380A 机械桅杆式坑道钻机 Mechanical mast drilling rig |
| 04/25/2012 | CN102425373A 超深孔定向钻机 Ultra-deep hole directional drilling |
| 04/25/2012 | CN102425372A 振动钻进式冲挖钻机 Vibration punching and drilling rig drilling |
| 04/19/2012 | WO2012015169A3 Polar vessel having a derrick |
| 04/18/2012 | CN202194590U 井架式机电一体化修井机 Mechatronics workover rig derrick type |
| 04/18/2012 | CN202194581U 一种能够精确定位的机架 Capable of precise positioning of the rack |
| 04/18/2012 | CN202194580U 一种便于升降桅杆的机架 A rack for easy lifting mast |
| 04/18/2012 | CN202194579U 一种钻车连杆三铰点共线侧摆机构 One kind Drill rod three collinear side hinge point swing mechanism |
| 04/18/2012 | CN202194578U 旋挖钻机专用底盘 Special chassis for rotary drilling rig |
| 04/18/2012 | CN202194555U 上背式全回转旋挖钻机 Full-swing on the back of rotary drilling rig |
| 04/18/2012 | CN102418480A Riser support device under ultra-deep sea water |
| 04/12/2012 | WO2012046942A1 Damping apparatus for moonpool |
| 04/11/2012 | CN202187723U 一种新型钻机升降式套管台 A new rig jack-sleeve Taiwan |
| 04/11/2012 | CN202187722U 钻修机二层台 Drilling and workover machine racking |
| 04/11/2012 | CN202187714U 新型履带式钻机的自起升及起吊装置 The new crawler rig since lifting and hoisting equipment |
| 04/11/2012 | CN202187713U 一种轮式通井机 One kind of wheeled hoist |
| 04/11/2012 | CN202187711U 一种全方位钻装机钻臂 Installed a holistic drilling boom |
| 04/11/2012 | CN102409983A 一种转盘装置及旋挖钻机 One kind of turntable device and rotary drilling rig |
| 04/11/2012 | CN102409973A Vehicle-mounted full hydraulic multifunctional deep well drilling machine |
| 04/10/2012 | CA2562351C A tension lift frame used as a jacking frame |
| 04/05/2012 | WO2012044919A2 Elevated platform systems including fiber reinforced composite panels |
| 04/05/2012 | WO2011071757A3 Multi-function multi- hole drilling rig |
| 04/05/2012 | US20120080227 Wireless transmission system and system for monitoring a drilling rig operation |
| 04/05/2012 | CA2809517A1 Elevated platform systems including fiber reinforced composite panels |
| 04/04/2012 | CN202181899U 全角度施钻工程钻机 The whole point of applied engineering drilling rig |
| 04/04/2012 | CN202181854U 微型折叠式自动钻井机 Miniature folding automatic drilling machine |
| 04/04/2012 | CN202181853U 一种支腿式凿岩机的换向操纵机构及一种支腿式凿岩机 One kind of leg rock drill commutation control mechanism and an Effective leg rock drill |
| 04/04/2012 | CN202181852U 一种钻机可调节式井架支座 One kind of rig derrick adjustable seat |
| 04/04/2012 | CN202181851U 井架起升缓冲装置 Derrick rose buffer device |
| 04/04/2012 | CN202181850U 一种带限角装置的气腿式凿岩机 A tape device limit angle Air-leg rock drill |
| 04/04/2012 | CN202181843U 一种油电混合多功能钻机 One kind of hybrid multi-function rig |
| 04/04/2012 | CN102400705A 高突矿井煤巷掘进防突钻冲装锚机组 Lane Tunnel Coal Mine High sudden outburst prevention drill punch unit installed anchor |
| 04/04/2012 | CN102400648A Detachable follow-up frame and installation process thereof |
| 04/03/2012 | CA2643310C Drilling device and drilling method |
| 03/28/2012 | CN202176267U Novel suction pile type seabed drilling base plate |
| 03/28/2012 | CN102395745A Drilling Rig Mast Lift Systems And Methods |
| 03/27/2012 | CA2458562C Method and apparatus of orientation of a rock drilling rig |
| 03/22/2012 | WO2012037313A2 Modular rig design |
| 03/22/2012 | WO2012036763A1 Multi-operational multi-drilling system |
| 03/22/2012 | WO2012036630A1 Raised cantilever for easy access (rcea) used on self elevating drilling rigs (offshore energy sector) |
| 03/22/2012 | US20120067590 Arrangement and method for regulating bottom hole pressures when drilling deepwater offshore wells |
| 03/22/2012 | US20120066999 Pinned structural connection using a pin and plug arrangement |
| 03/22/2012 | CA2808871A1 Multi-operational multi-drilling system |
| 03/21/2012 | CN202170758U 可升降油水井作业平台 Elevating work platform oil wells |
| 03/21/2012 | CN202170757U 旋转地矛 Rotationally spear |
| 03/21/2012 | CN202170756U 钻机井架起升装置 Rig derrick lifting device |
| 03/21/2012 | CN202170755U Amplitude changing mechanism of rotary drilling rig |
| 03/21/2012 | CN102383793A Dual function machine for drilling and loading in tunnel |
| 03/21/2012 | CN102383737A mast expansion and contraction device, masts of rotary drilling rig, and lengthening method for masts of rotary drilling rig |
| 03/21/2012 | CN102383736A Mast retracting device and mast of rotary drilling rig |
| 03/21/2012 | CN102383727A Drilling machine special for one-step well drilling and working method thereof |
| 03/21/2012 | CN101392630B Drill and method for operating a drill |
| 03/21/2012 | CN101379268B Upper beam for a telescopic feeder, telescopic feeder and drilling device for rock drilling |
| 03/20/2012 | CA2562509C Telescopic feed beam for rock drill |
| 03/15/2012 | WO2012033793A2 Two speed direct drive drawworks |
| 03/15/2012 | US20120061144 Multi-ram drill rig and method of operation |
| 03/15/2012 | CA2810646A1 Two speed direct drive drawworks |
| 03/14/2012 | EP2428636A1 Articulated support for a hydraulic drill, hydraulic drill and method to actuate said articulated support of said hydraulic drill |
| 03/14/2012 | CN202165021U 煤矿巷道支护用的锚索钻机支架 Mine roadway support bracket with anchor rig |
| 03/14/2012 | CN202165020U 一种架柱式液压回转钻机的托架总成 One kind of hydraulic rotary rig frame column bracket assembly |
| 03/14/2012 | CN202165019U 旋喷式软地基加固机全折叠型钻架 Churning soft foundation reinforcement machine full folding type rigs |
| 03/14/2012 | CN202165012U 一种钻探设备 A method of drilling equipment |
| 03/14/2012 | CN202165009U 煤矿井下用跨皮带全液压坑道钻机 Coal mine with a belt across the full hydraulic drilling rig |
| 03/14/2012 | CN102373886A Method for moving and fixing drilling derrick in marsh |
| 03/08/2012 | WO2012028974A2 System and method for conducting operations to subterranean formations |
| 03/01/2012 | WO2012025804A1 Parking and automatic handling equipment of drilling rods and associated drilling machine |
| 03/01/2012 | WO2011154919A3 A drill, related drilling arrangement and/or methods therefor |
| 03/01/2012 | US20120047820 Drilling rig mast lift systems and methods |
| 03/01/2012 | CA2811983A1 Parking and automatic handling equipment of drilling rods and associated drilling machine |
| 02/29/2012 | EP2422039A1 Telescopically extending shaft |
| 02/29/2012 | CN202152642U 坑道钻机及其钻进状态调整装置 Drilling rig and drilling state adjusting device |
| 02/29/2012 | CN202152641U 安装在修井机井架上的可调式小平台 Workover wells installed in the small platform adjustable shelves |
| 02/29/2012 | CN202152640U 一种钻机桅杆回转装置 A rotary device rig mast |
| 02/29/2012 | CN202152628U 一种全液压钻机的动力头让开孔口装置 A full hydraulic drilling rig power head to get out of the orifice device |
| 02/29/2012 | CN102364033A Frame column type pneumatic drill and operating method thereof |
| 02/29/2012 | CN102364028A Multifunctional full-hydraulic drilling machine |
| 02/23/2012 | WO2011150363A4 Deepwater completion installation and intervention system |
| 02/23/2012 | DE102010030694B4 Vorrichtung und Verfahren zur Durchführung von Arbeiten an Offshore-Bauwerken Apparatus and method for performing work on offshore structures |
| 02/22/2012 | EP2126268B1 Rig engine control |
| 02/22/2012 | CN202148866U 一种底锚钻机 One substrate anchor rig |
| 02/22/2012 | CN102359348A Hole-pitch-adjustable drilling device |
| 02/22/2012 | CN102359346A Lunar soil deep drilling sample recycling mechanism |
| 02/15/2012 | CN202144726U 间歇性蠕动推进式钻井机的起钻支撑装置 Since intermittent peristaltic propelled drilling machine drilling support device |
| 02/15/2012 | CN202144723U 挖掘机型钻机 Excavators rig |
| 02/15/2012 | CN102352726A Lifting mechanism |
| 02/15/2012 | CN101619647B 水平定向钻机主臂摆动连杆机构 Horizontal directional drilling boom swing link mechanism |
| 02/14/2012 | US8113299 Drill mast articulation assembly |
| 02/08/2012 | CN202140027U 可移动操纵台 Movable console |
| 02/08/2012 | CN202140026U 销轴式四角管型钻塔 Pin-type tube-type rigs corners |
| 02/08/2012 | CN202140019U 多用途岩心钻机 Multipurpose Core Drill |
| 02/02/2012 | WO2012015169A2 Polar vessel having a derrick |
| 02/01/2012 | CN202131987U 支架式帮锚钻机 Scaffolding to help anchor rig |