| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 08/24/2011 | CN102162333A Fully-electric crawler suspension remote control pile driver |
| 08/24/2011 | CN101555771B Combined flow-increasing connector for marine drilling riser |
| 08/23/2011 | US8003573 Method for remediating flow-restricting hydrate deposits in production systems |
| 08/23/2011 | US8002502 Method and system for installing cast-in-place concrete piles with a sonic drill |
| 08/23/2011 | US8002049 Well treating method to prevent or cure lost-circulation |
| 08/23/2011 | US8002041 Accumulator for subsea equipment |
| 08/23/2011 | CA2651966C Stage cementing methods used in casing while drilling |
| 08/23/2011 | CA2519365C System and method for treating drilling mud in oil and gas well drilling applications |
| 08/18/2011 | WO2011077201A3 System and method for torque stabilization of a drilling system |
| 08/18/2011 | WO2011049747A3 Tether tracking system and method for mobile machine |
| 08/18/2011 | WO2011041553A4 Tools for use in drilling or enlarging well bores having expandable structures and methods of making and using such tools |
| 08/18/2011 | US20110200394 Method of installing geothermal heat pump system and device for installation |
| 08/18/2011 | US20110198129 Method and drilling apparatus for down-the-hole drilling |
| 08/18/2011 | US20110198128 Earth-boring tools including abrasive cutting structures and related methods |
| 08/18/2011 | US20110198127 Methods of braking core barrel assemblies |
| 08/18/2011 | US20110198126 Downhole device |
| 08/18/2011 | US20110198123 Apparatus for boring holes in rock mass |
| 08/18/2011 | US20110197802 Moonpool and drillship having the same |
| 08/17/2011 | EP1226336B1 Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
| 08/17/2011 | CN201934024U 一种单缸双作用全液压随钻震击器 One kind of single-cylinder double-acting hydraulic drilling jar |
| 08/17/2011 | CN201934023U Eccentricity-raised pup joint |
| 08/17/2011 | CN201934022U 用于定向钻井的旋转导向机构 Rotary guiding mechanism for directional drilling |
| 08/17/2011 | CN201934021U 钻孔导向器 Drill guide |
| 08/17/2011 | CN201934020U 钻机钻孔角度调整装置 Rig drilling angle adjustment device |
| 08/17/2011 | CN201934019U 一种打孔模具 One kind of punching dies |
| 08/17/2011 | CN201934018U 无人驾驶钻车 Unmanned Drill |
| 08/17/2011 | CN201934017U 用于矿藏钻探机的步履装置 Walking device for mineral drilling machine |
| 08/17/2011 | CN201934011U 冰凌爆破开冰仪 Ice blasting open the ice instrument |
| 08/17/2011 | CN201933490U 一种组合式长螺旋旋挖钻机 A modular long spiral rotary drilling rig |
| 08/17/2011 | CN1926304B Downhole drilling of a lateral hole |
| 08/17/2011 | CN102159788A Articulation assembly for moving a drill mast |
| 08/17/2011 | CN102159770A Deep water pile system and method |
| 08/17/2011 | CN102158011A Power supply device for guide well drilling tool |
| 08/17/2011 | CN102155257A Benching drilling pressure releasing and outburst-prevention method |
| 08/17/2011 | CN102155187A Method for treating coal bed bottom plate karst water through hydraulic jetting and radial drilling |
| 08/17/2011 | CN102155169A Extension bar and long spiral drilling machine using same |
| 08/17/2011 | CN102155163A Deepwater multifunctional water pump drilling system and installation method thereof |
| 08/17/2011 | CN102155162A Floating chassis foldable boom type hydraulic drill carriage |
| 08/17/2011 | CN102155161A Novel omnibearing drill boom of drill loader |
| 08/17/2011 | CN102155160A Hybrid rotary drilling machine |
| 08/17/2011 | CN101592925B Method for controlling reasonable driving depth of offshore drilling method lower riser |
| 08/17/2011 | CN101128643B System and method for making a hole in an object |
| 08/17/2011 | CN101076651B Method for casing drilling and drilling unit |
| 08/16/2011 | US7997354 Expandable reamers for earth-boring applications and methods of using the same |
| 08/16/2011 | US7997343 Dynamic scale removal tool and method of removing scale using the tool |
| 08/16/2011 | US7997336 Method and apparatus for retrieving an assembly from a wellbore |
| 08/16/2011 | CA2693320A1 Flexible drill stem |
| 08/16/2011 | CA2568255C Systems and methods for remotely determining and changing cutting modes during decoking |
| 08/11/2011 | WO2011095324A1 Method for the trenchless laying of pipelines |
| 08/11/2011 | WO2011094849A1 Torque transmitting load shoulder |
| 08/11/2011 | WO2011069167A3 Geotechnical horizontal directional drilling |
| 08/11/2011 | DE10123999B4 Vorrichtung und Verfahren zum Ermitteln von Bohrparametern Apparatus and method for determining drilling parameters |
| 08/10/2011 | EP1751390B1 Apparatus and method for modified horizontal directional drilling assembly |
| 08/10/2011 | CN201924839U 一次生产管柱 A production string |
| 08/10/2011 | CN201924830U 一种双管外导内钻定向连续取芯造斜机具 Directional drilling within a two-tube outer conductor continuous coring equipment whipstocking |
| 08/10/2011 | CN201924829U Mining deep hole drill carriage unit |
| 08/10/2011 | CN1978862B Soil treating device |
| 08/10/2011 | CN1776196B Method and system for accessing subterranean deposits from the surface |
| 08/10/2011 | CN102149899A Method of cracking rock material, and breaking device |
| 08/10/2011 | CN102149895A Steerable piloted drill bit, drill system, and method of drilling curved boreholes |
| 08/10/2011 | CN102147033A Non-excavation directional traversing construction method for thermal power pipeline |
| 08/10/2011 | CN102146779A Underground locating and angle-fixing drilling and windowing tool for horizontal well |
| 08/10/2011 | CN102146772A Rotary locking piece type drilling riser connector |
| 08/10/2011 | CN102146770A Drill boom beam structure of propelling beam capable of rotating by 360 degrees |
| 08/10/2011 | CN102146671A Wheeled electric piling machine |
| 08/10/2011 | CN101737060B Beneath-soil through-tunnel superlarge diameter pipe curtain construction method |
| 08/09/2011 | CA2454070C Expander for expanding a tubular element |
| 08/04/2011 | WO2011094359A2 Drilling assembly with underreaming bit and method of use |
| 08/04/2011 | WO2011093716A1 Device and method for drilling with continous tool rotation and continous drilling fluid supply |
| 08/04/2011 | WO2011055180A3 Drive mechanism |
| 08/04/2011 | WO2011041174A4 Earth boring tools having expandable members |
| 08/04/2011 | US20110186355 Drill string mounted rotatable tool and cleaning method |
| 08/04/2011 | US20110186354 Methods of attaching a shank to a body of an earth-boring tool including a load bearing joint and tools formed by such methods |
| 08/04/2011 | CA2788151A1 Device and method for drilling with continous tool rotation and continous drilling fluid supply |
| 08/03/2011 | EP2351903A2 Method and device for establishing and/or enlarging a borehole |
| 08/03/2011 | EP2350421A1 Rock drilling machine |
| 08/03/2011 | EP2350420A1 Rock drilling device |
| 08/03/2011 | EP2350226A1 Settable compositions comprising cement kiln dust and swellable particles |
| 08/03/2011 | EP2349655A1 Rock drilling machine and axial bearing module |
| 08/03/2011 | EP2234777B1 Drill column for a drill stand |
| 08/03/2011 | CN201915876U 水平井井下定位定角钻孔开窗工具 Fixed angle positioning of horizontal wells drilled downhole tool windows |
| 08/03/2011 | CN201915838U 孔内水压定向器 Hole hydraulic directional control |
| 08/03/2011 | CN201915837U 非开挖导向钻机用拖泥沙器 Trenchless-oriented drills, dragging sediment filter |
| 08/03/2011 | CN201915836U 定向钻进系统 Directional Drilling System |
| 08/03/2011 | CN201915835U 一种露天矿钻孔定位器 One kind of open pit drilling Locator |
| 08/03/2011 | CN201915834U 多功能钻机 Multifunctional Drilling Rig |
| 08/03/2011 | CN201915833U 一种山地钻机 One kind of mountain rig |
| 08/03/2011 | CN201915832U Lifting and supporting structure of mine deep hole drilling rig |
| 08/03/2011 | CN201915824U 一种兼具地下连续墙施工功能的汽车旋挖钻机 Underground continuous wall construction that is both functional car rotary drilling rig |
| 08/03/2011 | CN102144073A External water delivery system for rock drills |
| 08/03/2011 | CN102144072A Feed mechanism for drilling systems |
| 08/03/2011 | CN102140890A Positive circulation simple drilling machine |
| 08/03/2011 | CN102140889A Horizontal well logging while drilling geo-steering method |
| 08/03/2011 | CN102140888A Excavating drilling machine |
| 08/03/2011 | CN102140887A Hydraulic winch-free well repairing machine |
| 08/03/2011 | CN101800000B Natural gas exploitation simulator of multi-angle horizontal branch well |
| 08/02/2011 | US7987927 Steering of bent housing mud motor downhole rotation device |
| 08/02/2011 | US7987923 Valve tester suspension assembly |
| 08/02/2011 | CA2634436C Methods, systems, and apparatus for production of hydrocarbons from a subterranean formation |
| 08/02/2011 | CA2617155C Wellbore fluids for casing drilling |