| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
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| 01/21/2015 | EP2825715A2 Method and apparatus for introducing or sinking cavities in rock |
| 01/21/2015 | EP2825714A1 Method and apparatus for acoustic noise isolation in a subterranean well |
| 01/21/2015 | CN204113162U 套管下放工具 Casing lowering tool |
| 01/21/2015 | CN204113118U 基于顶驱作业的下套管装置 Based on the top drive casing means jobs |
| 01/21/2015 | CN204113117U 磨料水射流径向钻孔装置 Abrasive water jet radial drilling device |
| 01/21/2015 | CN204113116U 一种液压式侧钻井造斜装置 A hydraulic drilling whipstock device Side |
| 01/21/2015 | CN204113115U 一种新型的单弯钻具 A new single curved drill |
| 01/21/2015 | CN204113114U 一种刚性马达钻具 A rigid drill motor |
| 01/21/2015 | CN204113113U 分体式全液压动力头岩心钻机 Split full hydraulic power head core drilling rig |
| 01/21/2015 | CN204113112U 快速锚杆机 Fast bolting machine |
| 01/21/2015 | CN204113111U 双工位液压冲击回转钻进、旋喷动力头 Duplex hydraulic impact rotary drilling, rotary jet power head |
| 01/21/2015 | CN104302870A 用于加热含烃岩床的方法与系统 Method for heating a hydrocarbon-containing bedrock and systems |
| 01/21/2015 | CN104295271A 生物气的开采系统及生物气的开采方法 Mining methods and mining system biogas biogas |
| 01/21/2015 | CN104295239A 一种旋挖钻机硬岩地层成孔的方法 One kind of rotary drilling rig in hard rock formations into the hole method |
| 01/21/2015 | CN104295238A 磨料水射流径向钻孔装置 Abrasive water jet radial drilling device |
| 01/21/2015 | CN104295237A 气体钻井连续气举排液系统和方法 Continuous gas lift gas drilling drainage system and method |
| 01/21/2015 | CN104295236A 机动式电杆坑钻机 Self-propelled rig pole pit |
| 01/21/2015 | CN104295235A 一种用于巷道底板的快速注浆钻孔设备 Quick roadway floor grouting for drilling equipment |
| 01/21/2015 | CN104295234A 长螺旋挤压夯底桩机及桩基灌注成桩方法 Long screw extrusion ram bottom pile and pile pile perfusion method |
| 01/21/2015 | CN104295233A 钻探系统及用于监测和显示用于钻探系统的钻探操作的钻探参数的方法 The method of drilling parameters for drilling system for drilling operations drilling system and for monitoring and display |
| 01/21/2015 | CN104295230A 潜水钻机 Submersible drilling rig |
| 01/21/2015 | CN103216193B 矩形孔钻井机 Rectangular hole drilling machine |
| 01/20/2015 | US8936113 Percussion mole and method of geothermal heat exchange |
| 01/20/2015 | US8936108 High power laser downhole cutting tools and systems |
| 01/20/2015 | CA2783113C Telescopic unit with dissolvable barrier |
| 01/20/2015 | CA2647397C Device for steering drilling tools |
| 01/15/2015 | WO2015006101A1 Invert emulsion drilling fluids for flat rheology drilling |
| 01/15/2015 | WO2015003267A1 Mud motor with integrated reamer |
| 01/15/2015 | WO2015003266A1 Directional drilling apparatus and methods |
| 01/15/2015 | US20150019134 Wellbore Positioning System and Method |
| 01/15/2015 | US20150014061 Hydraulic actuation of a downhole tool assembly |
| 01/15/2015 | US20150014057 Mining drill with gradient sensing |
| 01/14/2015 | EP2824274A2 Microtunneling system and apparatus |
| 01/14/2015 | EP2824273A2 Drilling machine and method |
| 01/14/2015 | EP2822374A2 Soil sampling method and device |
| 01/14/2015 | CN204098794U 一种浮动旋转机构 One kind of floating rotating mechanism |
| 01/14/2015 | CN204098785U 驱动筒和旋挖钻机 Drive cylinder and rotary drilling rig |
| 01/14/2015 | CN204098784U 驱动筒和旋挖钻机 Drive cylinder and rotary drilling rig |
| 01/14/2015 | CN204098783U 一种煤矿用全液压钻车 One kind of coal with full hydraulic drilling |
| 01/14/2015 | CN204098782U 一种煤矿用全液压钻车 One kind of coal with full hydraulic drilling |
| 01/14/2015 | CN204098781U 凿岩台车的悬挂除渣机 Drill rig suspension Cleaner |
| 01/14/2015 | CN204098780U 全液压履带式桅杆高度与配重无级调节后背式旋挖钻机 Hydraulic Crawler mast height and weight stepless back type rotary drilling rig |
| 01/14/2015 | CN204098779U 钻孔机结构 Drills structure |
| 01/14/2015 | CN104278981A 井下瓦斯抽采钻机 Underground gas drainage drilling rig |
| 01/14/2015 | CN104278952A 一种水力-机械联合煤层造穴装置及使用方法 One kind of hydro - mechanical joint seam build a cave system and method of use |
| 01/14/2015 | CN104278951A 水切割完井 Waterjet Cutting completion |
| 01/14/2015 | CN104278950A 双工位液压冲击回转钻进、旋喷动力头 Duplex hydraulic impact rotary drilling, rotary jet power head |
| 01/14/2015 | CN104278676A 一种钻孔灌注桩桩头即时处理方法及其装置 Bored one kind of trailer coupling immediate processing method and apparatus |
| 01/14/2015 | CN103216259B 一种防护井下煤层钻孔垮塌的系统 One kind of protection of underground coal seam drilling system collapse |
| 01/14/2015 | CN101960085B 便于组装和架设钻机的方法与相关钻机 Ease of assembly and erection methods and related rig drilling rig |
| 01/13/2015 | US8931581 Drilling tool |
| 01/13/2015 | US8931578 Robotic tunneling system |
| 01/13/2015 | US8931563 Auxiliary subsurface compensator |
| 01/13/2015 | US8931561 Soft landing system and method of achieving same |
| 01/13/2015 | US8931560 Downhole swivel apparatus and method |
| 01/13/2015 | CA2654320C Rotary steerable tool |
| 01/08/2015 | US20150008045 Steerable Drilling System |
| 01/08/2015 | US20150008043 Rotary Steerable Push-the-Bit Drilling Apparatus with Self-Cleaning Fluid Filter |
| 01/08/2015 | US20150008041 High Stiffness Tool For Expanding A Wellbore |
| 01/08/2015 | US20150008039 Modular drilling rig system |
| 01/08/2015 | US20150008036 Boost system and method for dual gradient drilling |
| 01/08/2015 | US20150008001 Subsurface Well Systems with Multiple Drain Wells Extending from Production Well and Methods for Use Thereof |
| 01/08/2015 | US20150007993 Protection of casing lowside while milling casing exit |
| 01/08/2015 | US20150007991 Method for Establishment of a New Well Path from an Existing Well |
| 01/08/2015 | DE112012006311T5 Sprengstoffeinrichtungsverstärkungsanordnung und Verfahren zu deren Verwendung Explosive means amplification arrangement and methods of use thereof |
| 01/07/2015 | EP2821585A1 Drilling device and drilling method |
| 01/07/2015 | EP2819805A2 Silent entry torching and oxygen delivery system and configuration |
| 01/07/2015 | CN204082469U 一种用于冰孔钻取的抽水节能装置 An ice-hole drill pumping energy saving device for |
| 01/07/2015 | CN204082062U 一种裸眼侧钻用造斜器悬挂器 Openhole sidetrack one kind whipstock with hanger |
| 01/07/2015 | CN204082037U 一种车载钻机及其夹紧装置 A vehicle-mounted drilling rig and clamping device |
| 01/07/2015 | CN204082006U 一种三斜面空气锤钻头 A three-bevel air hammer drill |
| 01/07/2015 | CN204082005U 一种控制钻机钻孔孔斜的装置 An oblique hole drilling rig control device |
| 01/07/2015 | CN204082004U 一种非开挖导向钻 A non-excavation of the drill guide |
| 01/07/2015 | CN204082003U 一种非开挖导向钻的导向板 A non-excavation-oriented drill guide plate |
| 01/07/2015 | CN204082002U 一种非开挖导向钻的探棒安装结构 A non-excavation-oriented drill probe mounting structure |
| 01/07/2015 | CN204082001U 钻井法凿井垂直钻进钻具 Shaft Drilling vertical drilling drill |
| 01/07/2015 | CN204082000U 一种简易组装钻机 A simple assembly rig |
| 01/07/2015 | CN204081999U 一种可行走万向旋转钻机 One kind of universal rotary drilling rig can walk |
| 01/07/2015 | CN204081998U 机动式电杆坑钻机 Self-propelled rig pole pit |
| 01/07/2015 | CN204081997U 一种跨皮带机钻孔装置 Drilling equipment across a belt |
| 01/07/2015 | CN204081996U 一种用于巷道底板的快速注浆钻孔设备 Quick roadway floor grouting for drilling equipment |
| 01/07/2015 | CN204081995U 长螺旋挤压夯底桩机 Long screw extrusion ram bottom pile |
| 01/07/2015 | CN204081994U 一种具有移动装置的气动架柱式钻机 Pneumatic frame pillar drill having a mobile device |
| 01/07/2015 | CN204081993U 破冰装置 Ice breaker |
| 01/07/2015 | CN104271874A 用于对封装管状构件的环空进行密封的方法和系统 For encapsulating the tubular member annulus sealing method and system |
| 01/07/2015 | CN104271867A 用于在山中置入或挖掘空穴的方法和设备 Method and apparatus for insertion or digging holes in the mountains |
| 01/07/2015 | CN104265705A 一种用于调节水平定向钻机推拉速度及推拉力的控制系统 A method for adjusting the horizontal directional drilling and the push-pull sliding speed control system |
| 01/07/2015 | CN104265270A 一种碳酸盐岩缝洞钻井轨迹设计及控制方法 A carbonate chimney hole drilling trajectory design and control methods |
| 01/07/2015 | CN104265201A 一种车载钻机及其夹紧装置 A vehicle-mounted drilling rig and clamping device |
| 01/07/2015 | CN104265187A 扩孔钻具 Reaming drill |
| 01/07/2015 | CN104265183A 一种浮动旋转机构 One kind of floating rotating mechanism |
| 01/07/2015 | CN104265176A 切削式扩孔器 Cutting style reamer |
| 01/07/2015 | CN104265175A 新型扩孔器 The new reamer |
| 01/07/2015 | CN104265174A 随钻浇砼空心桩成桩机具 Pouring concrete hollow drilling equipment Pile |
| 01/07/2015 | CN104265173A 一种减振提速装置 A vibration damping device speed |
| 01/07/2015 | CN104265172A 用于旋转导向钻井工具的万向联轴机构 Universal coupling mechanism for rotary steerable drilling tool |
| 01/07/2015 | CN104265171A 一种垂直钻井自动调整装置及调整方法 The vertical drilling automatic adjustment device and adjustment method |
| 01/07/2015 | CN104265170A 一种非开挖导向钻的探棒安装结构 A non-excavation-oriented drill probe mounting structure |
| 01/07/2015 | CN104265169A 一种非开挖导向钻 A non-excavation of the drill guide |
| 01/07/2015 | CN104265168A 一种动态内偏置指向钻头式旋转导向装置 A dynamic bias point within the rotary drill guide |