| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
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| 05/07/2014 | CN103775003A 一种降低气体钻井钻进摩阻的装置 A gas drilling drilling device reduces friction |
| 05/07/2014 | CN103774993A 一种压电陶瓷式声波钻头 A piezoelectric ceramic sonic drill |
| 05/07/2014 | CN103774992A 套管井下膨胀工具的驱动装置 Drive means of the expansion tool downhole casing |
| 05/07/2014 | CN103774991A 井底粒子引射钻井提速工具 Downhole drilling speed particle ejector tool |
| 05/07/2014 | CN103774990A 用于控制在地球地层中钻井眼用的钻井系统的系统和方法 System and method for controlling drilling in earth formations ophthalmic the drilling system |
| 05/07/2014 | CN103774989A 随钻动态建模待钻井轨迹设计水平井地质导向分析方法 Track designed to be drilling horizontal wells drilling Geosteering dynamic modeling analysis |
| 05/07/2014 | CN103774988A 一种实时随钻伽马正演地质导向钻井方法 A real-time LWD gamma Forward Geosteering drilling method |
| 05/07/2014 | CN103774987A 掏槽孔钻车 Cut holes drilled Cart |
| 05/07/2014 | CN103774986A 煤矿瓦斯治理底抽巷九十度全方位液压钻车 Coal Mine Gas Control Lane ninety round bottom pumping hydraulic drilling |
| 05/07/2014 | CN103774985A 液压挖掘机式钻机 Hydraulic excavators rig |
| 05/07/2014 | CN103774983A 射流式扭转冲击钻井工具 Reversing the impact of jet drilling tool |
| 05/07/2014 | CN103770689A 采矿车辆和移动采矿车辆的悬臂的方法 The method of mining vehicles and mining vehicles moving cantilever |
| 05/07/2014 | CN102678044B 一种钻井杆及脉冲等离子体钻机系统 One kind of drilling rig rods and pulsed plasma system |
| 05/07/2014 | CN101821471B 磁锤 Magnetic hammer |
| 05/07/2014 | CA2795029A1 Apparatus for keeping a downhole drilling tool vertically aligned |
| 05/06/2014 | US8714263 Lightweight and compact subsea intervention package and method |
| 05/06/2014 | US8714237 Method and means for installing geothermal heat loops |
| 05/01/2014 | WO2014066709A2 Application of downhole rotary tractor |
| 05/01/2014 | WO2014066609A1 Hybrid bearings for downhole motors |
| 05/01/2014 | WO2014066047A1 Formation dip geo-steering method |
| 05/01/2014 | WO2014039395A3 Preload and centralizing device for milling subterranean barrier valves |
| 05/01/2014 | US20140116784 Borehole selector assembly |
| 05/01/2014 | US20140116782 Method and apparatus for shaping a well hole |
| 05/01/2014 | US20140116781 Reciprocating and Rotating Section and Methods in a Drilling System |
| 05/01/2014 | US20140116779 Application of downhole rotary tractor |
| 05/01/2014 | US20140116777 Resonance enhanced rotary drilling module |
| 05/01/2014 | US20140116776 Methods and systems for improved drilling operations using real-time and historical drilling data |
| 04/30/2014 | EP2725184A1 Rock drilling apparatus and method for controlling the orientation of the feed beam |
| 04/30/2014 | EP2725183A1 Mining vehicle and method of moving boom |
| 04/30/2014 | EP2723969A2 A fluid diverter system for a drilling facility. |
| 04/30/2014 | EP2723964A1 Robotic tunneling system |
| 04/30/2014 | EP2723963A1 Positioning method for a drilling head |
| 04/30/2014 | CN203570295U Drilling machine and control system for same |
| 04/30/2014 | CN203570211U Moving device used for coal mine drill rig |
| 04/30/2014 | CN203570206U End pressure-bearing type rock bolt reamer |
| 04/30/2014 | CN203570205U Sleeve unblocked device |
| 04/30/2014 | CN203570204U Correction drill tool for horizontal well inclined well segment |
| 04/30/2014 | CN203570203U Natural gas horizontal well vertical well section quick drilling mechanism |
| 04/30/2014 | CN203570202U Crawler type tower-machine integrated core drill |
| 04/30/2014 | CN203570201U Hybrid workover rig |
| 04/30/2014 | CN203570200U Device for controlling impacting energy of rock drilling system according to propulsive force |
| 04/30/2014 | CN203570198U Secure and rapid drilling machine for large mining height working face |
| 04/30/2014 | CN203570196U Slurry pumping type well sinking device |
| 04/30/2014 | CN103764944A A method of conditioning a wall of a bore section |
| 04/30/2014 | CN103758802A Automatic drilling hydraulic control system and work vehicle |
| 04/30/2014 | CN103758801A Automatic drilling hydraulic control system, control method and work vehicle |
| 04/30/2014 | CN103758552A Hole-expanding type anchor rod and construction technology thereof |
| 04/30/2014 | CN103758456A Crusher for rock wellhole of foundation of electric tower |
| 04/30/2014 | CN103758455A Drilling method and device using deflecting tools |
| 04/30/2014 | CN103758454A Pore forming, pit building, powder stamping and pressure relief integrated device in soft coal development area |
| 04/30/2014 | CN103758453A Intelligent micro drilling machine |
| 04/30/2014 | CN103758452A Mining hydraulic drill carriage |
| 04/30/2014 | CN103758450A Self-drilling anchor rod boring device capable of reaming at the same time |
| 04/30/2014 | CN102733450B Well sinking water taking method, well sinking device and water pumping well |
| 04/30/2014 | CN102678043B Method for constructing flow plastic interlayer by adjusting hole drill |
| 04/30/2014 | CN102434102B Pulse cavitation multiple jet nozzle |
| 04/30/2014 | CA2794094A1 Methods and systems for improved drilling operations using real-time and historical drilling data |
| 04/29/2014 | US8708064 System and method to control steering and additional functionality in a rotary steerable system |
| 04/29/2014 | US8708058 Method and an arrangement for controlling a rock drill |
| 04/29/2014 | CA2708853C Adjustable bent housing apparatus and method |
| 04/29/2014 | CA2643820C A failure protection apparatus for a pressure control assembly |
| 04/29/2014 | CA2639418C Pump assembly |
| 04/29/2014 | CA2600871C System for rapidly boring through materials |
| 04/29/2014 | CA2498602C System for imparting mechanical impulse energy to the ground |
| 04/24/2014 | WO2014063066A1 Fast moving drilling rig |
| 04/24/2014 | WO2014062920A1 Passive downhole chemical release packages |
| 04/24/2014 | WO2012116189A3 Tools and methods for use with a high power laser transmission system |
| 04/24/2014 | US20140110178 Modular rotary steerable actuators, steering tools, and rotary steerable drilling systems with modular actuators |
| 04/24/2014 | US20140110176 System and method for steering in a downhole environment using vibration modulation |
| 04/24/2014 | US20140110172 System and method for using controlled vibrations for borehole communications |
| 04/24/2014 | US20140110170 Boring tool tracking fundamentally based on drill string length, pitch and roll |
| 04/24/2014 | US20140110168 Mining vehicle and method of moving boom |
| 04/24/2014 | US20140110139 Rock drilling apparatus and method for controlling the orientation of the feed beam |
| 04/24/2014 | DE102012020439A1 Optimized method for creating super deep melting bore holes, involves supplying pressure water through cooling water line of melting rig and high pressure pump, as driving force is generated through power line of sliding element |
| 04/23/2014 | EP2721241A1 Method and arrangement for preparing a charging plan |
| 04/23/2014 | EP2721240A1 Method and arrangement for designing drilling plan |
| 04/23/2014 | CN203559793U Drill rod and drilling machine |
| 04/23/2014 | CN203559776U Guiding and locking mechanism suitable for driving head of sleeve pipe |
| 04/23/2014 | CN203559775U Self-advancing explosion-proof high-pressure water jet drilling machine for coal mine |
| 04/23/2014 | CN203559774U Three-dimensional positioning controllable excavation device used for karst cave simulation in model test |
| 04/23/2014 | CN203559773U Blasting mining drill wagon for thin seam |
| 04/23/2014 | CN203559772U Vehicle-mounted vertical shaft type drilling machine inclined swing mechanism |
| 04/23/2014 | CN203559771U Piling drilling tool |
| 04/23/2014 | CN103742188A Coal mine pump drainage gas well and drilling method thereof |
| 04/23/2014 | CN103742082A Drill pipe coupler for raise boring machine |
| 04/23/2014 | CN103742076A Axial vibrator |
| 04/23/2014 | CN103742075A Supercritical carbon dioxide abrasive jet flow perforation simulation experiment system |
| 04/23/2014 | CN103742074A Deviation-preventing and fast-drilling drilling assembly |
| 04/23/2014 | CN103742073A Angle adjusting mechanism for multifunctional drilling machine |
| 04/23/2014 | CN102400644B Stepless adjustable borehole trace control tool |
| 04/22/2014 | US8705949 Method and system for direct electric heating of a pipeline |
| 04/22/2014 | US8701795 Adjustable rotary steerable system |
| 04/22/2014 | US8701794 High power laser perforating tools and systems |
| 04/17/2014 | WO2014059282A2 Attitude reference for tieback/overlap processing |
| 04/17/2014 | WO2014059098A1 Multilateral y-block system |
| 04/17/2014 | WO2014059090A1 Alignment assembly |
| 04/17/2014 | WO2014058412A1 System and method for circumferentially aligning a downhole latch subsystem |
| 04/17/2014 | WO2013040561A4 An apparatus and system to drill a bore using a laser |
| 04/17/2014 | US20140102801 Formation penetrating tool |
| 04/17/2014 | US20140102800 Rotary Steerable Drilling System for Drilling a Borehole in an Earth Formation |