| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
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| 07/30/2014 | CN203742435U 激光破岩气体输送装置 Laser-breaking rock gas delivery device |
| 07/30/2014 | CN203742432U 大直径旋挖钻孔桩硬岩钻具 Large diameter rotary drilling hard rock drill bored piles |
| 07/30/2014 | CN203740390U 磨料旋转储罐装置 Abrasive rotating tank means |
| 07/30/2014 | CN103958821A 用于安装能量链的方法和设备 Energy chain for mounting a method and apparatus |
| 07/30/2014 | CN103958813A 衬管固井过程和系统 Liner cementing processes and systems |
| 07/30/2014 | CN103953285A 顺层水力冲孔方法 BEDDING hydraulic punching method |
| 07/30/2014 | CN103953284A 液压螺旋水平定向钻 Hydraulic screw Horizontal Directional Drilling |
| 07/30/2014 | CN103953283A 潜式横旋方孔钻机 Transverse spin-submersible drilling rig square |
| 07/30/2014 | CN103953282A 长螺旋方孔钻机 Long spiral square hole drill |
| 07/30/2014 | CN103953032A 方形水泥搅拌桩钻机 Square cement mixing pile rig |
| 07/30/2014 | CN103950855A 一种电液联控转臂限位装置 An electrically controlled hydraulic jib stopper Union |
| 07/30/2014 | CN102808580B 一种煤层气水平开采孔激光定向钻进钻具及其钻进方法 One kind of exploitation of coalbed methane horizontal directional drilling hole laser drilling and drilling method |
| 07/30/2014 | CN102747953B 一种松软煤层分步式钻护一体化系统及工艺 One kind of soft coal seam step Drill protection integrated systems and processes |
| 07/30/2014 | CN101680270B 水下油井控制系统及方法 Underwater well control system and method |
| 07/29/2014 | US8789621 Hydrocarbon well completion system and method of completing a hydrocarbon well |
| 07/29/2014 | US8789591 Method and apparatus to release energy in a well |
| 07/29/2014 | US8789580 Wellbore casing section with moveable portion for providing a casing exit |
| 07/29/2014 | CA2822883C Controlled hydrostatic pressure completion system |
| 07/29/2014 | CA2716395C A method for facilitating construction of a drilling rig |
| 07/29/2014 | CA2708520C Method and apparatus for drilling auxiliary holes |
| 07/24/2014 | WO2014113012A1 Systems and methods of supporting a multilateral window |
| 07/24/2014 | US20140202772 Drilling a well with predicting sagged fluid composition and mud weight |
| 07/24/2014 | US20140202692 Method for the in situ recovery of heavy oil from a subterranean deposit |
| 07/24/2014 | DE102013000771A1 Vorrichtung zum Abfördern von Bohrklein Device for conveying drill cuttings |
| 07/23/2014 | EP2757296A1 Method and system for replacement of existing pipes. |
| 07/23/2014 | EP2757228A1 Rotating continuous flow sub |
| 07/23/2014 | EP2756148A2 An apparatus and system to drill a bore using a laser |
| 07/23/2014 | CN203729880U 旋挖钻机入岩激振装置减振器 Rotary drilling rig into the rock exciting means damper |
| 07/23/2014 | CN203729879U 一种用于振动钻柱的钻井装置 A drilling apparatus for drill string vibration |
| 07/23/2014 | CN203729878U 机械式顶驱下套管装置 Mechanical top drive casing means |
| 07/23/2014 | CN203729877U 薄壁管式内胆蒸汽钻机 Thin-walled tubular liner steam rig |
| 07/23/2014 | CN203729876U 多功能非开挖水平定向钻机 Multifunction trenchless horizontal directional drilling |
| 07/23/2014 | CN203729875U 一种用于钻机的旋转水封装置 A rotating seal apparatus for drilling rigs |
| 07/23/2014 | CN203729874U 天车旋转架 Crane rotating frame |
| 07/23/2014 | CN203729873U 一种煤矿用履带式液压坑道钻机 One kind of coal mine crawler hydraulic drilling rig |
| 07/23/2014 | CN203729872U 多功能钻机的角度调节机构 Versatile rig angle adjustment mechanism |
| 07/23/2014 | CN203729871U 隧道工程钻机专用机械旋转式车架 Tunnel construction machinery specialized rotary rig frame |
| 07/23/2014 | CN203729870U 中小型地下通管顶钻机械 Small underground drill through the top of the pipe machinery |
| 07/23/2014 | CN203729858U 矿山凿孔机 Mine perforator |
| 07/23/2014 | CN103939128A 瓦斯抽采管钻送方法 Gas drainage tube feeding method drill |
| 07/23/2014 | CN103939080A 一种采用油垫法开采多层地下光卤石矿层的方法 One kind of oil pad method using a multi-layer underground mining methods carnallite layer |
| 07/23/2014 | CN103939046A 无外挂冷却润滑泵站低压轻型旋转控制头 No external cooling and lubricating low-light rotating control head pumping station |
| 07/23/2014 | CN103939019A 一种瓦斯抽放钻孔液压扩孔增透装置 One kind of gas drainage drilling hydraulic reaming AR device |
| 07/23/2014 | CN103939018A 一种修井机绕障侧钻工艺 One kind of barrier around the sidetrack workover process |
| 07/23/2014 | CN103939017A 静态偏置推靠式旋转导向钻井工具 Static bias pushes against rotary steerable drilling tool |
| 07/23/2014 | CN103939016A 气举反循环潜式横旋方孔钻机 Gas lift reverse circulation-submersible drilling rig transverse spin square hole |
| 07/23/2014 | CN103939015A 灌注方桩钻机 Perfusion square pile rig |
| 07/23/2014 | CN103939014A 泵举反循环潜式横旋方孔钻机 Submersible pump lift reverse circulation drilling rig horizontal spin square hole |
| 07/23/2014 | CN103939013A 集成式高温不压井修井装置 Integrated temperature snubbing workover equipment |
| 07/23/2014 | CN103939012A 高应力松软突出厚煤层大直径钻孔装置 Outstanding high stress soft thick seam large diameter drilling device |
| 07/23/2014 | CN103939011A 一种在坚硬花岗岩中钻进的方法 A drilling method in hard granite |
| 07/23/2014 | CN103334697B 钻具的旋转导向装置和钻具 Rotary steerable drilling apparatus and drilling |
| 07/23/2014 | CN102758430B 超深抛填未固结土体大直径旋挖桩施工工艺 Ultra-deep fill auger cast pile construction technology of large diameter unconsolidated soil |
| 07/23/2014 | CN102561946B 一种随钻跟管钻机及随钻跟管桩施工方法 One kind of drilling rigs and drilling with pipe with pipe construction method |
| 07/23/2014 | CN102425374B 一种井眼轨道控制方法 A well trajectory control method |
| 07/22/2014 | US8786285 Apparatus for monitoring a positional relationship between a boring tool and an inground line |
| 07/22/2014 | US8783382 Directional drilling control devices and methods |
| 07/22/2014 | US8783380 Apparatuses and methods relating to cooling a subterranean drill bit and/or at least one cutting element during use |
| 07/22/2014 | US8783379 Fluid transfer device usable in managed pressure and dual-gradient drilling |
| 07/22/2014 | US8783360 Laser assisted riser disconnect and method of use |
| 07/22/2014 | US8783358 Methods and systems for circulating fluid within the annulus of a flexible pipe riser |
| 07/22/2014 | US8783352 Maintaining shale stability by pore plugging |
| 07/22/2014 | US8783339 Tubular member adaptor apparatus |
| 07/22/2014 | US8782968 Pivotable tower for angled drilling |
| 07/22/2014 | CA2813113A1 Hydraulic pipe string vibrator |
| 07/22/2014 | CA2784074C Method of presenting positioning information, user interface, and rock drilling rig |
| 07/22/2014 | CA2709929C Steerable system |
| 07/17/2014 | WO2014110489A1 Downhole vibratory apparatus |
| 07/17/2014 | WO2014110444A2 Jetting tool |
| 07/17/2014 | WO2013155059A3 System and method for forming a lateral wellbore |
| 07/17/2014 | WO2013122480A9 Method for establishment of a new well path from an existing well |
| 07/17/2014 | WO2013110917A3 Drilling system and method |
| 07/17/2014 | US20140196955 Direct Torque Helical Displacement Well and Hydrostatic Liquid Pressure Relief Device |
| 07/17/2014 | US20140196954 Jetting tool |
| 07/17/2014 | US20140196953 Drilling apparatus |
| 07/17/2014 | US20140196952 Downhole sinusoidal vibrational apparatus |
| 07/17/2014 | US20140196951 Positioning method for a drilling head |
| 07/17/2014 | US20140196950 Path Tracking for Directional Drilling as Applied to Attitude Hold and Trajectory Following |
| 07/16/2014 | EP2754850A1 An apparatus and method for cutting a wellbore |
| 07/16/2014 | CN203716869U 天井钻机钻杆联轴器 Patio drill rig couplings |
| 07/16/2014 | CN203716860U 一种水下爆破钻孔定位工作平台 Underwater blasting work platform drilling positioning |
| 07/16/2014 | CN203716851U 一种电塔基础岩石井孔破裂机 An electrical tower foundation rock borehole rupture machine |
| 07/16/2014 | CN203716850U 轮式挠性管输管器 Wheel flexible hose pipeline |
| 07/16/2014 | CN203716849U 一种全液压式连续管斜向器 A fully hydraulic coiled tubing whipstock |
| 07/16/2014 | CN203716848U 一种小型全电动非开挖水平定向钻机 A small all-electric trenchless horizontal directional drilling |
| 07/16/2014 | CN203716847U 用于定向井钻井的减摩降扭工具 Reducing friction torque tools for directional drilling |
| 07/16/2014 | CN203716846U 新型步履式底盘履靴结构 Walking shoe boots new chassis structure |
| 07/16/2014 | CN203716845U 一种便携式可控垂直钻机 A portable controllable vertical drilling rig |
| 07/16/2014 | CN203716844U 一种改进的行走式潜孔钻机 An improved propelled submersible drilling rig |
| 07/16/2014 | CN203716843U 一种桥梁钻孔装置 One kind of bridge drilling device |
| 07/16/2014 | CN203716842U 深井钻机整体式钻进压力控制系统 Deep drilling rig integral pressure control system |
| 07/16/2014 | CN203716841U 用于松软突出煤层钻进双层内排渣防堵钻具 For soft prominent seam drilling attempts to prevent the double slag drill |
| 07/16/2014 | CN103924994A 自移式锚杆钻机平台 Since portable bolt rig platform |
| 07/16/2014 | CN103924927A 一种桩孔智能扩径方法 One kind of intelligence flaring method Pile |
| 07/16/2014 | CN103924926A 一种浅表砾石地层快速钻孔施工方法 A gravel stratum rapid shallow drilling construction methods |
| 07/16/2014 | CN103924925A 一种水力喷射自进式钻孔增加煤层透气性方法及装置 One kind of self-advanced water jet drilling to increase seam permeability method and apparatus |
| 07/16/2014 | CN103924924A 一种垂直钻井装置 The vertical drilling rigs |
| 07/16/2014 | CN103924923A 同步多分支径向水平井完井方法及工具 Synchronous multi-branch radius horizontal well completion methods and tools |
| 07/16/2014 | CN103924922A 行走架、行走装置及工程机械 Walking frame, walking devices and construction machinery |
| 07/16/2014 | CN103924921A 一种全液压桅杆高度与配重无级调节后背式旋挖钻机 A fully hydraulic mast height and weight stepless adjustment back type rotary drilling rig |