| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 12/14/2011 | EP2395154A1 Device and method for drilling and tamping grounds |
| 12/14/2011 | EP2394015A1 Equipment for realization of deep boreholes and method of realization of deep boreholes |
| 12/14/2011 | EP2265791B1 Device and method of lining a wellbore |
| 12/14/2011 | CN202073583U 前后门型架迈步式锚护一体机 Moving around the gantry anchor retaining one machine |
| 12/14/2011 | CN202073497U 三维旋转水射流煤层扩孔系统 Three-dimensional rotating water jet coal reaming system |
| 12/14/2011 | CN202073496U 梯车用隧道钻孔机 Ladder vehicle tunnel boring machine |
| 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 | CN102278068A 一种处理气体钻井过程中地层出水的方法 A gas drilling method of formation water treatment |
| 12/14/2011 | CN102278067A 造斜器 Whipstock |
| 12/14/2011 | CN102278066A 一种复合钻井防斜打快底部钻具组合 A composite vertical and fast drilling BHA |
| 12/14/2011 | CN102278065A 旋转导向工具及其偏置机构以及对该偏置机构的控制方法 Rotation control method-oriented tools and a biasing mechanism and the biasing mechanism |
| 12/14/2011 | CN102278064A 气动钻车 Pneumatic Drill |
| 12/14/2011 | CN102278063A 喀斯特地貌水磨钻施工工艺 Construction Technology karst mill drill |
| 12/14/2011 | CN101858213B 煤巷双平台四臂钻装运锚一体化机 Coal Lane dual-platform integrated four-arm drill ship anchored machine |
| 12/14/2011 | CN101397888B 鱼骨形分支井钻完井工艺方法 Fishbone wells drilling and completion process for |
| 12/14/2011 | CN101310089B 用于将微粒供入流中的设备和方法 For microparticles for inflow devices and methods |
| 12/13/2011 | US8074744 Horizontal waterjet drilling method |
| 12/13/2011 | US8074743 Active integrated well completion method and system |
| 12/13/2011 | US8074742 Apparatus and method for cutting a wellbore |
| 12/13/2011 | US8074740 Method and system for installing cast-in-place concrete piles with a sonic drill and a removable or retrievable drill bit |
| 12/13/2011 | US8074739 Sampling method and sampler for gas hydrates by hole bottom freezing |
| 12/09/2011 | CA2707136A1 A permanent bypass whipstock assembly for drilling and completing a sidetrack well and preserving access to the original wellbore |
| 12/08/2011 | WO2011126795A3 Horizontal waterjet drilling method |
| 12/08/2011 | US20110297443 Expandable reamer apparatus and related methods |
| 12/07/2011 | EP2391793A2 Apparatus and method for setting a tool in a borehole |
| 12/07/2011 | CN202065146U 双油泵输出装置 Dual pump output device |
| 12/07/2011 | CN202064948U Ultra-low surface full hydraulic drilling type coal mining machine |
| 12/07/2011 | CN202064848U 一种钻机备用钻杆简易固定装置 An alternate drill rig simple fixtures |
| 12/07/2011 | CN202064847U 一种钻机备用钻杆固定装置 An alternate drill rig fixtures |
| 12/07/2011 | CN202064834U 非开挖铺管钻机用重力平衡式回扩器 Trenchless pipe rig balanced by gravity back to the expansion device |
| 12/07/2011 | CN202064833U 水平定向钻进铺管钻机用方向可控式导向钻头 Horizontal directional drilling rig pipe laying ceremony with steerable drill guide |
| 12/07/2011 | CN202064832U 超短半径径向高压水射流复式钻井、完井工具 Ultrashort radius radial pressure water jet double drilling, completion tools |
| 12/07/2011 | CN202064831U 油压式双级变径稳定器 Two-stage adjustable hydraulic stabilizers |
| 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 | CN202064829U 车载式交流变频电驱动修井机 Car AC variable frequency electric drive workover |
| 12/07/2011 | CN202064828U 轨道式电动综合作业机 Rail-mounted electric machine integrated operations |
| 12/07/2011 | CN202064827U 双自由度牵引座 Traction seat two degrees of freedom |
| 12/07/2011 | CN202061732U 一种粒子冲击钻井实验用喷嘴 Particle Impact Drilling experimental nozzle |
| 12/07/2011 | CN102272416A 不粘设备 Non-stick device |
| 12/07/2011 | CN102272406A 井底通信装置及其使用方法 Downhole communication device and method of use |
| 12/07/2011 | CN102272405A 球形活塞导向装置及其使用方法 Spherical piston guide means and method of use |
| 12/07/2011 | CN102268966A 一种破碎硬岩钻头及对硬岩进行破碎的方法 One kind of crushing hard rock drill and method for hard rock crushing |
| 12/07/2011 | CN102268965A 一种绑带式钻井隔水管固定支架 One kind of tie-up drilling riser mounting bracket |
| 12/07/2011 | CN102268964A 钻孔桩钻孔纠偏导向装置以及配置该导向装置的桩机钻杆 Correction bored pile pile drill guide, and configuration of the guide device |
| 12/07/2011 | CN102268963A Basement rock fractured formation mixed drilling well completion process |
| 12/07/2011 | CN101915059B 等井径钻完井工艺方法 Such as drilling and completion process for caliper |
| 12/07/2011 | CN101250982B 一种机械式自动垂直钻具 A mechanical automatic vertical drilling |
| 12/07/2011 | CN101240693B 气体钻井后实施干井下套管的方法 After a dry gas drilling method downhole casing |
| 12/06/2011 | US8071509 Glycerol based drilling fluids |
| 12/06/2011 | US8069920 Lateral well locator and reentry apparatus and method |
| 12/06/2011 | US8069915 Non-metallic whipstock |
| 12/06/2011 | US8069716 Multi-coupling reduced length measure while drilling apparatus |
| 12/01/2011 | WO2011150378A1 Method and apparatus to control fluid flow subsea wells |
| 12/01/2011 | WO2011150363A1 Deepwater completion installation and intervention system |
| 12/01/2011 | WO2011149363A1 Enhanced vibrational or hammering apparatus |
| 12/01/2011 | WO2011149197A2 Variable excavation hammer for expanding the leading end of a pile |
| 12/01/2011 | WO2011148285A2 Mine dewatering system and method |
| 12/01/2011 | WO2011148053A1 Rock drilling rig and method for positioning the same |
| 12/01/2011 | WO2011148052A1 Rock drilling rig, method for controlling the temperature of its drive equipment, and liquid cooling system |
| 12/01/2011 | WO2011148051A1 Rock drilling rig and method for downhill drive |
| 12/01/2011 | US20110290563 Device for performing deep drillings and method of performing deep drillings |
| 12/01/2011 | US20110290562 Integrated geomechanics determinations and wellbore pressure control |
| 12/01/2011 | US20110290561 Downhole Hydraulic Jetting Assembly, and Method for Stimulating a Production Wellbore |
| 12/01/2011 | US20110290505 Drilling and Completion Deflector and Method of Using |
| 12/01/2011 | US20110290494 Method for circulating a fluid entry out of a subsurface wellbore without shutting in the wellbore |
| 12/01/2011 | CA2800149A1 Mine dewatering system and method |
| 12/01/2011 | CA2800033A1 Enhanced vibrational or hammering apparatus |
| 12/01/2011 | CA2789239A1 Rock drilling rig and method for positioning the same |
| 11/30/2011 | EP2390458A1 Drilling device with telescoping Kelly tube |
| 11/30/2011 | EP2389493A1 Whipstock attachment to a fixed cutter drilling or milling bit |
| 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 | CN202055754U 一种高压水射流岩土层扩孔装置 A high-pressure water jet rock layer reaming device |
| 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 | CN202055747U 打孔机 Punch |
| 11/30/2011 | CN102261223A 一种新型基桩钻孔机 A new foundation pile drilling machine |
| 11/30/2011 | CN101818644B 矿山竖井井筒一钻成井钻井法凿井工艺 Wellbore drilled into a mine shaft sinking drilling process |
| 11/30/2011 | CN101793157B 一种充填体支护的方法 One kind of filling body support method |
| 11/29/2011 | US8066086 Sleeve arrangement |
| 11/29/2011 | US8066085 Stochastic bit noise control |
| 11/29/2011 | US8066069 Method and apparatus for wellbore construction and completion |
| 11/29/2011 | CA2650975C Apparatus and method for selectively orienting a bit |
| 11/24/2011 | WO2011146490A1 Two pipe horizontal directional drilling system |
| 11/24/2011 | WO2011103570A3 Reverse circulation apparatus and methods for using same |
| 11/24/2011 | WO2011071691A3 Telescopic unit with dissolvable barrier |
| 11/24/2011 | WO2011018610A3 Control system and method for directional drilling utilizing the same |
| 11/24/2011 | US20110284292 Apparatus and Method for Steerable Drilling |
| 11/24/2011 | US20110284291 Tension/Collar/Reamer Assemblies And Methods |
| 11/24/2011 | DE102011010675A1 Bohranlage, insbesondere Horizontalbohranlage Drilling rig, especially horizontal drilling rig |
| 11/24/2011 | DE102010010036B4 Bohrvorrichtung mit Dichtungsanordnung und Verfahren zum Betrieb einer Bohrantriebseinheit Drilling assembly with sealing assembly and method for operating a Bohrantriebseinheit |
| 11/24/2011 | CA2799752A1 Method for drilling through nuisance hydrocarbon formations |
| 11/23/2011 | EP2388432A2 Drilling assembly, in particular horizontal drilling assembly |
| 11/23/2011 | CN202048035U Hydraulic oil tank applied to horizontal drilling machine hydraulic system |
| 11/23/2011 | CN202047750U High-feasibility whipstock |
| 11/23/2011 | CN202047749U Whipstock easy to operate |
| 11/23/2011 | CN202047748U Ultra short radius horizontal well flexible drilling tool |
| 11/23/2011 | CN202047747U Vertical shaft type drilling machine having long feeding stroke |
| 11/23/2011 | CN202047746U Creeping and movable type rock drilling and boring trailer |
| 11/23/2011 | CN102257242A Modifying expansion forces by adding compression |
| 11/23/2011 | CN102251781A Guiding horizontal jet grouting pile pre-support construction method for scattered particle rock surrounding tunnel |
| 11/23/2011 | CN102251776A Rural well drilling machine |