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)
10/2010
10/27/2010CN201614888U 一种水平井柔性钻井工具 A horizontal well drilling tool flexible
10/27/2010CN201614887U 一种履带式钻锚机 One kind of crawler drill windlass
10/27/2010CN201614884U 一种双动力钻机及其动力头装置 A dual power drill and power head unit
10/27/2010CN101871328A Planetary drill bit assembly for balancing reactive torque of drilling equipment in well drilling
10/27/2010CN101871322A Pressurizing and pushing device of sleeve pipe
10/27/2010CN101871321A Mounting method-immersed tube drilling method of drill conductor
10/27/2010CN101871320A Automatic hydraulic offset-correcting method for horizontal drilling and specific drilling tool
10/27/2010CN101871319A Double-caterpillar drilling machine used in coal mines
10/27/2010CN101871318A Multifunctional open-air hydraulic drill carriage
10/27/2010CN101871317A Anchor rod drilling machine
10/27/2010CN101871222A Method for controlling motion of mast oil cylinder of revolving drilling rig and system
10/27/2010CN101196115B Construction method for high pressure underground gas storing well
10/26/2010US7820014 a system for cutting coke within a coke drum with increased safety, efficiency and convenience.
10/26/2010US7819204 Subsea drilling
10/26/2010CA2656610C An assembly and method for discharging fluid into a drill string of a rotary-vibratory drill
10/21/2010WO2010078387A3 Liner drilling system with retrievable bottom hole assembly
10/21/2010WO2010068751A3 Vibratory drill head mounting and rotation coupling system
10/21/2010US20100263929 Excavation and compaction equipment for the construction of screw piles
10/21/2010US20100263928 Excavation and compaction equipment for the construction of screw piles
10/20/2010EP2032838B1 Impulse rotor generator
10/20/2010CN101868595A Automated directional drilling apparatus and methods
10/20/2010CN101868593A Method of drilling a wellbore
10/20/2010CN101864933A Method for reducing pressure in a perforating gun
10/20/2010CN101864899A Self-control shooting distance water jet drill
10/20/2010CN101864897A Method for controlling eccentric displacement vector of rotary steering tool
10/20/2010CN101864896A Hydraulic drilling rig device on construction drill carriage
10/19/2010US7816923 Enhanced passive ranging methodology for well twinning
10/19/2010US7814989 System and method for performing a drilling operation in an oilfield
10/19/2010CA2652477C Determination of azimuthal offset and radius of curvature in a deviated borehole using periodic drill string torque measurements
10/19/2010CA2570378C One trip well apparatus with sand control
10/14/2010WO2010117963A1 System and method for drill string vibration control
10/14/2010WO2010116152A2 Under-reamer
10/14/2010WO2010115777A2 Method and steering assembly for drilling a borehole in an earth formation
10/14/2010WO2009122211A3 Directional well drilling
10/14/2010WO2009105005A8 Boom arrangement for a rock drill and rock drill rig
10/14/2010WO2009101477A8 Steerable system
10/14/2010US20100258354 Jetted Underreamer Assembly
10/14/2010US20100258353 Apparatus for use in Drilling
10/14/2010US20100258352 System And Method For Drill String Vibration Control
10/14/2010US20100258321 Active positioning of downhole devices using spherical motors
10/14/2010US20100258320 Ocean floor deep-sea submerged deck
10/14/2010US20100258307 Drilling composition, process for its preparation, and applications thereof
10/14/2010US20100258303 Annulus mud flow rate measurement while drilling and use thereof to detect well dysfunction
10/13/2010EP2238310A2 Steerable drilling system
10/13/2010CN201606082U 新型管棚钻机 The new pipe roof rig
10/13/2010CN201606052U 一种基于外转子电机的海洋钻修机的控制系统 An external rotor motor based marine drilling and workover control system machine
10/13/2010CN201606005U 暂封口开孔套管分支井固井完井结构 Temporarily sealing the opening casing cementing wells completions structure
10/13/2010CN201606004U 一种表层套管钻头 One kind of surface casing drill
10/13/2010CN201606003U 钻机机身俯仰调整装置 Rig fuselage pitch adjustment device
10/13/2010CN201606002U 一种垂直定位钻孔设备 The vertical positioning drilling equipment
10/13/2010CN201606001U 页岩钻孔机 Shale drilling machine
10/13/2010CN201606000U 适用于油气井重建井口装置的行走机构 Suitable for walking mechanism of oil and gas wells reconstruction wellhead
10/13/2010CN201605999U 半拖挂钻机新型倒车装置 The new semi-trailer rig reversing device
10/13/2010CN201605998U 一种小孔径巷道底板钻孔快速钻进装置 A small, fast aperture roadway floor drilling drilling apparatus
10/13/2010CN201605997U 岩芯钻机用桅杆角度自动调节装置 Core drilling rig mast angle with automatic adjustment device
10/13/2010CN101858218A Shaft sinking process for expansion well completion of mine vertical shaft with boring method
10/13/2010CN101858213A Drilling, loading, transporting and anchoring integrated machine with dual platforms and four arms for coal roadway
10/13/2010CN101858198A Controllable hydraulic power integrated unit for underground deviation correction
10/13/2010CN101413380B Multifunctional self-oscillation flow jet flow drill
10/13/2010CN101258814B Planting hole and method for using planting hole to green rock slope and breakage mountain body
10/12/2010US7810585 Bi-directional rotary steerable system actuator assembly and method
10/12/2010US7810584 Method of directional drilling with steerable drilling motor
10/12/2010US7810583 Drilling systems and methods
10/12/2010US7810582 Counterbalance enabled power generator for horizontal directional drilling systems
10/12/2010US7810568 Method of making a window in a tubular using an expandable watermelon mill
10/12/2010CA2630108C Electro-mechanical thruster
10/12/2010CA2493552C Device for simultaneously casing a hole while drilling
10/12/2010CA2395746C Method and apparatus for a combined exit guide and sectional mill for sidetracking
10/07/2010WO2010114462A1 A method for the collection of samples of soil and a vehicle intended to be used with the method
10/07/2010WO2010112832A1 Methods and apparatus for the installation of columns / piles
10/07/2010US20100254768 Apparatus and a method for constructing an underground curved multisectional wall and stratum
10/07/2010US20100252333 System for drilling a wellbore
10/07/2010US20100252331 Methods for forming boring shoes for wellbore casing, and boring shoes and intermediate structures formed by such methods
10/07/2010US20100252327 Drill Bits With Cutters to Cut High Side of Wellbores
10/07/2010US20100252326 Modular system for a back reamer and method
10/07/2010US20100252324 Millimeter-wave drilling and fracturing system
10/06/2010EP2236734A1 Drive unit with alignment means
10/06/2010EP2236733A1 Drive unit for a drilling or construction device
10/06/2010EP2235323A2 Pulse rate of penetration enhancement device and method
10/06/2010EP2235321A2 Stimulation through fracturing while drilling
10/06/2010EP2234777A1 Drill stand
10/06/2010CN201598981U 压风排渣打钻装置 Standard Chartered drilling apparatus pressure air discharge
10/06/2010CN201598980U 全液压钻孔挖掘多用机 Full hydraulic drilling mining multi-purpose machine
10/06/2010CN201598979U 一种挖掘机型式液压平动钻机 One kind of type hydraulic excavator translational rig
10/06/2010CN201598978U 一种锚杆钻车的干湿式钻箱 One kind of wet and dry anchor drill rig drill box
10/06/2010CN201598977U 一种新型轮式整体移运钻机 A new overall shift operation wheeled rig
10/06/2010CN201598976U 新型小型修井机 The new small workover rig
10/06/2010CN201598975U 竖井钻机的伸缩式动臂 Shaft rig telescopic boom
10/06/2010CN101852069A Supporting rotating control head of underbalanced coal bed methane well drilling
10/05/2010US7808859 Oscillating shear valve for mud pulse telemetry
10/05/2010US7806203 Active controlled bottomhole pressure system and method with continuous circulation system
10/05/2010CA2604002C Drilling with casing
10/05/2010CA2486279C Vibration damper systems for drilling with casing
09/2010
09/30/2010WO2010111685A2 Compressor
09/30/2010WO2010111630A2 Continuous geomechanically stable wellbore trajectories
09/30/2010WO2010111613A1 Helical drilling apparatus, systems, and methods
09/30/2010WO2010111022A1 Expandable multi-flute reamer with tapered pin
09/30/2010WO2010109502A1 Multifunction tool
09/30/2010WO2010090609A4 Equipment for realization of deep boreholes and method of realization of deep boreholes
09/30/2010WO2009106863A8 A method for facilitating construction of a drilling rig
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