Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 7 - Special methods or apparatus for drilling
Patents for E21B 7 - Special methods or apparatus for drilling (22,064)
06/2014
06/11/2014EP2740882A1 Drilling device and method for producing a borehole
06/11/2014EP2739810A2 Drilling tool for laying a tube in the ground
06/11/2014CN203640750U 遥控式滑车锚钻装置 Remote-controlled drilling anchor pulley device
06/11/2014CN203640626U 井下钻具扶正器 Downhole drill centralizer
06/11/2014CN203640620U 一种一体化钻割钻杆装置 An integrated diamond drill cutting device
06/11/2014CN203640618U 一种一体化钻割钻杆 An integrated diamond cutting drill
06/11/2014CN203640604U 一种旋挖钻机旋扩装置 One kind of rotary drilling rig rotary expansion device
06/11/2014CN203640603U 一种水平井井壁支撑装置 A horizontal shaft wall support device
06/11/2014CN203640602U 气动液压混合式巷道掘进凿岩台车 Hydraulic hybrid tunnel boring drill rig
06/11/2014CN203639907U 旋喷锚索施工钻体 Churning anchor drill body construction
06/11/2014CN203637966U 全液压履带式牵引机 Fully hydraulic crawler tractor
06/11/2014CN103857868A Methods of controllably milling a window in a cased wellbore using a pressure differential to cause movement of a mill
06/11/2014CN103850907A Double plunger type high pressure grinding material injection device
06/11/2014CN103850650A Mechanical elastic positioning buffer device
06/11/2014CN103850649A Explosion well drilling operation method by utilizing sleeve
06/11/2014CN103850647A Hoop rock blasting rack for tunnel blasting construction
06/11/2014CN103850646A Toroidal drilling and blasting device for tunnel blasting operation
06/11/2014CN103452482B Bevel gear set reversing underground pulse jet supercharging device
06/11/2014CN102337146B Decoking system of coking tank
06/10/2014US8746371 Downhole tools having activation members for moving movable bodies thereof and methods of using such tools
06/10/2014US8746370 Horizontal drilling system
06/10/2014US8746368 Compliantly coupled gauge pad system
06/10/2014US8746365 Electro-hydraulic drilling with shock wave reflection
06/10/2014US8746350 Tubing hanger shuttle valve
06/10/2014US8746347 Subsea wellhead providing controlled access to a casing annulus
06/10/2014US8746344 System and method for containing borehole fluid
06/10/2014CA2803822C One trip milling system
06/05/2014WO2014085828A1 Tool for use on exit side of bore and method of use thereof
06/05/2014WO2014006204A3 Device and method for drilling two galleries in opposite directions
06/05/2014WO2013186554A3 Apparatus and method for controlling a part of a downhole assembly, and a downhole assembly
06/05/2014US20140154016 Detachable feed rail for rock drill
06/05/2014US20140151125 Drill bit housing vibrator and method
06/05/2014US20140151124 Tool For Use On Exit Side Of Bore An Method Of Use Thereof
06/05/2014US20140151123 Micro Tunneling Machine
06/05/2014US20140151121 Automated directional drilling apparatus and methods
06/05/2014US20140151120 Drilling machine power pack which includes a clutch
06/05/2014US20140151078 Method and system for controlling the movement of a mast of a drilling machine, in particular for obtaining piles
06/05/2014US20140151061 Drilling composition, process for its preparation, and applications thereof
06/05/2014DE102012112411B3 Thrust boring steering device for controllably driving tubular string into ground, has conveyor worm which is led up to spray head by connecting ring of universal joint
06/04/2014EP2737169A1 Minimum strain energy waypoint-following controller for directional drilling using optimized geometric hermite curves
06/04/2014EP2737154A1 Drilling device and method for using the same
06/04/2014CN203627125U 一种钻井液压泵 One kind of drilling pump
06/04/2014CN203626676U 深海小型电动取芯潜钻 Small electric submersible deep sea coring drill
06/04/2014CN203626610U 一种随钻防键槽井眼修复工具 One kind of anti-keyway borehole drilling Repair Tool
06/04/2014CN203626609U 一种斜井段螺杆钻具组合 One kind of screw inclined BHA
06/04/2014CN203626608U 反向偏心式固定翼旋转导向工具 Reverse eccentric fixed-wing rotary steerable tool
06/04/2014CN203626607U 一种车载水循环移动桩机 A vehicle-mounted mobile water recycling pile
06/04/2014CN203626606U 一种加装在综掘机上的液压钻机 An installation on a hydraulic rig Digging Machine
06/04/2014CN203626605U 车装钻机整体平移系统 Truck-mounted drilling rig overall translation system
06/04/2014CN203626604U 双井口多功能作业钻井装置 Double drilling wellhead multifunction device operation
06/04/2014CN203626603U 履带式全液压坑道钻机 Crawler hydraulic drilling rig
06/04/2014CN203626602U 一种超深钻探机 An ultra-deep drilling machine
06/04/2014CN103842613A Apparatus and method for determining the direction east
06/04/2014CN103835663A Anti-collision drilling assembly for vertical sections in dense cluster well groups and anti-collision method thereof
06/04/2014CN103835662A Slide type inclined well drilling machine
06/04/2014CN103835654A Friction-reduction and amplitude-increasing downhole tool
06/04/2014CN103835653A Self-propelled rock debris grinding material straight-spinning jet mixing flow drill bit
06/04/2014CN103835652A Vehicle-mounted inclined shaft drilling machine
06/04/2014CN103835651A Single-hole directional drilling local grouting raise boring technology
06/04/2014CN103835650A Crawler-type hydraulic pressure underground drill rig for coal mines
06/04/2014CN103835649A Well drilling device capable of reinforcing well wall
06/04/2014CN103835648A Raise-boring technology for improving rock stratum performance through ground grouting
06/04/2014CN103835285A Construction method and special hole forming machine of concrete cylinder buried in soft foundation
06/04/2014CN102606321B Controller, system and method for adjusting gear of rotary drilling rig, and rotary drilling rig
06/04/2014CN102226378B Reinforced riser pipe combined structure and construction method thereof
06/03/2014US8739900 System and method for coupling a drill bit to a whipstock
06/03/2014US8739883 Internal tree cap and ITC running tool
06/03/2014US8739882 Subsea cooler
06/03/2014US8739862 System for controlling flow of an actuating fluid
06/03/2014CA2745124C Remote controlled vehicle
06/03/2014CA2595525C Rotation device for a boom of a mining or constructions work rig, rig and boom
05/2014
05/30/2014WO2014081527A1 Drill bit for a drilling apparatus
05/30/2014WO2014081503A1 Drill string stabilizer recovery improvement features
05/30/2014WO2014081397A1 Structure-assisted jackup system
05/30/2014WO2014081396A1 Structure-supported jackup system
05/30/2014WO2014080920A1 Drilling tool
05/30/2014WO2014078880A1 Device for drilling anchor holes in underground mining
05/30/2014WO2013150078A3 Symmetrical bit for directional drilling tool
05/30/2014WO2013131882A3 Soil sampling method and device
05/29/2014US20140144707 Drilling machine and method
05/29/2014US20140144706 Rotating continuous flow sub
05/29/2014US20140144705 Hydraulic Percussion Apparatus and Method of Use
05/29/2014US20140144704 Borepath Analyzer
05/29/2014US20140144703 Systems and methods for subsea drilling
05/28/2014EP2735693A1 Tool for locating and plugging lateral wellbores
05/28/2014DE102009038385B4 Rammbohrvorrichtung mit einem pneumatischen Antrieb und einer hydraulischen Umsteuerung der Bewegungsrichtung Rammbohrvorrichtung with a pneumatic actuator and a hydraulic reversing the direction of movement
05/28/2014CN203615032U 一种全液压履带式切削钻机链条的智能润滑系统 Cutting a fully hydraulic crawler drilling rig chain lubrication system intelligence
05/28/2014CN203614627U 一种全液压履带式切削钻机的智能液压制动系统 Cutting a fully hydraulic crawler drilling rig intelligent hydraulic brake system
05/28/2014CN203614037U 井下负压脉冲射流减振器 Underground negative pulse jet damper
05/28/2014CN203614036U 一种旋转导向钻井工具 A rotary steerable drilling tool
05/28/2014CN203614035U 一种凿岩台车上冷却器和空压机的一体化安装装置 Integrated mounting means a rock trolley cooler and compressor
05/28/2014CN203614034U 一种带智能制动装置的履带式液压切削钻机 An intelligent crawler hydraulic brake system with cutting rig
05/28/2014CN203614033U 履带式深孔液压切削钻机 Deep crawler hydraulic cutting rig
05/28/2014CN203614032U 一种全液压履带式切屑钻机工作模式切换装置 A fully hydraulic crawler drilling rig working mode switching device chips
05/28/2014CN203614031U 一种双速、双扭矩履带式液压切削钻机 A two-speed, dual-torque crawler hydraulic cutting rig
05/28/2014CN203614030U 一种大风量空压机系统履带式液压切削钻机 One kind of wind capacity air compressor system crawler hydraulic cutting rig
05/28/2014CN203614029U 一种涡轮扭转冲击发生器 A turbine generator torsional shock
05/28/2014CN103827434A 从激光扩展的孔段中清除钻屑的装置和系统 Means for clearing cuttings from the hole section of the laser system and the extension of
05/28/2014CN103827433A 使井坐落于目标地带中的装置和方法 The well is located in the heart of the target device and method
05/28/2014CN103821544A 隧道与地下工程高压大流量突涌水治理方法 Tunnels and Underground Engineering sudden gushing high pressure and large flow control methods
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