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
06/26/2014WO2014094163A1 Downhole probes and systems
06/26/2014WO2014094161A1 Rotary locking sub for angular alignment of downhole sensors with high side in directional drilling
06/26/2014WO2013180822A3 Drilling system, biasing mechanism and method for directionally drilling a borehole
06/26/2014US20140174831 Directional Drilling Control Using a Bendable Driveshaft
06/26/2014US20140174824 Electric auger
06/26/2014US20140174740 Method of intersecting a first well bore by a second well bore
06/26/2014DE102009023142B4 Verfahren und Vorrichtung zum Einbringen einer Geothermiesonde in das Erdreich Method and apparatus for introducing a probe into the ground geothermal
06/25/2014EP2746529A2 System and method for positioning equipment for well logging
06/25/2014EP2744967A1 Rotary steerable assembly inhibiting counterclockwisewhirl during directional drilling
06/25/2014CN203669921U 松软破碎煤层瓦斯抽采孔跟管钻进装置 Soft broken seam gas drainage hole drilling apparatus with tubes
06/25/2014CN203669771U 煤矿用坑道钻机液压升降台 Coal mine tunnel drilling snorkels
06/25/2014CN203669746U 钻井用水力振荡器 Drilling water power oscillator
06/25/2014CN203669745U 砂层钻孔装置 Sand drilling device
06/25/2014CN203669744U 移动式公路立柱水平钻孔机 Mobile highway horizontal drilling machine column
06/25/2014CN203669743U 小直径固定式钻孔键槽破坏器 Fixed a small diameter drill keyway damage
06/25/2014CN203669742U 具有加压功能的长螺旋钻机 Long auger has a function of pressure
06/25/2014CN203669741U 一种履靴行走装置及使用该履靴行走装置的桩工钻机 One kind of shoe boots walking devices and the use of the shoe boots walking device Piling Rig
06/25/2014CN203669740U 一种桩工机械用履靴装置 One kind of piling machinery equipment with shoe boots
06/25/2014CN203669739U 履靴行走装置及其连接封板 Shoe boots walking device and its connection closure plate
06/25/2014CN203669738U 折叠式二层台踏板 Folding pedals racking
06/25/2014CN203669737U 带吸尘器钻臂 With a vacuum cleaner boom
06/25/2014CN103883306A 一种基于复合导向钻井的水平井方向优先着陆控制方法 Based on the direction of the composite steerable drilling horizontal wells priority landing control method
06/25/2014CN103883255A 一种基于连续导向钻井的水平井着陆轨迹控制方法 Landing a horizontal well trajectory control based on continuous steering drilling method
06/25/2014CN103883254A 一种基于导向钻井方向优先着陆控制的通用方法 A general method based steerable drilling direction control priority landing
06/25/2014CN103883253A 一种基于复合导向钻井的水平井着陆控制方法 Based on a composite steerable drilling horizontal wells landing control method
06/25/2014CN103883252A 一种基于滑动导向钻井的水平井着陆控制方法 Based on the sliding guide drilling horizontal wells landing control method
06/25/2014CN103883251A 一种基于旋转导向钻井的水平井方向优先着陆控制方法 Based on the direction of rotary steerable drilling horizontal wells priority landing control method
06/25/2014CN103883250A 一种基于滑动导向钻井的水平井方向优先着陆控制方法 Based on the direction of the sliding guide drilling horizontal wells priority landing control method
06/25/2014CN103883249A 一种基于旋转导向钻井的水平井着陆控制方法 Based on rotary steerable drilling horizontal wells landing control method
06/25/2014CN103883248A 一种地热完井方法 One kind of geothermal completion methods
06/25/2014CN102758588B 同轴式声频物探钻机振动器 Coaxial audio Geophysical rig vibrator
06/25/2014CN102536115B 抽采瓦斯钻孔及其施工方法 Drained gas drilling and construction method
06/25/2014CN102425382B 动压润滑钻具及具有该钻具的钻具组合 Hydrodynamic lubrication drilling BHA and have the drill
06/25/2014CN102409974B 振动挤压式钻孔机 Vibration extrusion Drills
06/25/2014CN102373883B 一种潜水入岩钻机 A submerged into the rock drilling rig
06/25/2014CN102168555B 一种超低面全液压钻式采煤机 An ultra-low surface full hydraulic drilling Shearer
06/25/2014CN101978133B 一种可用于多冰水域钻采的船 Which can be used drilling ship icy waters
06/25/2014CN101784746B 随机钻头噪音控制 Random bit of noise control
06/24/2014US8761586 Electrically heatable honeycomb body and method for operating it
06/24/2014US8757935 Jet grouting equipment
06/24/2014US8757294 System and method for controlling a drilling system for drilling a borehole in an earth formation
06/24/2014US8757292 Methods for enhancing the efficiency of creating a borehole using high power laser systems
06/24/2014US8757289 Underwater drilling arrangement and method for making a bore in a bed of a water body
06/24/2014US8757269 Clamp for a well tubular
06/24/2014US8757251 Multi-functional machine adaptable for drilling, boring and lifting
06/19/2014WO2014093762A1 Coring bit to whipstock systems and methods
06/19/2014WO2014092724A1 Cold root-rolling device
06/19/2014WO2014091462A1 Optimal trajectory control for directional drilling
06/19/2014US20140166368 Method and system for improving drilling speed by using drill speed vibration
06/19/2014US20140166363 Automated directional drilling system and method using steerable motors
06/18/2014EP2742202A2 Tensioning chain
06/18/2014CN203655177U 一种机液式可变径稳定器 A mechanism can be adjustable stabilizer liquid formula
06/18/2014CN203655160U 混流式井下动力增压钻具 Francis downhole drill booster
06/18/2014CN203655159U 轴流式井下动力增压钻具 Axial downhole drill booster
06/18/2014CN203655158U 液压连续柔性钢管水平钻机 Continuous flexible steel horizontal hydraulic drilling rig
06/18/2014CN203655157U 可换片变径稳定器 Interchangeable piece adjustable stabilizer
06/18/2014CN203655156U 一种矿用液压钻车 Ore with a hydraulic drilling
06/18/2014CN203655155U 一种锚杆钻机 One kind Roofbolter
06/18/2014CN203655154U 旋挖钻机 Rotary Drilling Rig
06/18/2014CN203655153U 集成式钻机 Integrated Rig
06/18/2014CN203655152U 一种用于地质取心勘探的变频电驱动顶驱式岩心钻机 VF for geological exploration coring driven top drive type core drilling rig
06/18/2014CN203655151U 岩芯钻机 Core drilling
06/18/2014CN203655150U 一种填埋气井辅助钻筒 One kind of landfill gas wells drilled auxiliary cylinder
06/18/2014CN203655144U 一种全液压冲击式露天凿岩钻机 A fully hydraulic impact surface drill rigs
06/18/2014CN203655143U 一种凿岩机的支架调节装置 One kind of rock drill bracket adjustment device
06/18/2014CN103867140A Hydraulic drive drilling machine
06/18/2014CN103867127A Thin-wall tube type steam drill
06/18/2014CN103867126A Motor-driven horizontal oriented drill rig
06/18/2014CN103867125A Small-sized full electric non-excavation horizontal oriented drill rig
06/18/2014CN103867124A CBM (Coal-Bed Methane) multi-branch horizontal well system suitable for uniclinal structure
06/18/2014CN103867123A Non-excavation pilot drilling machine integrating main machine and auto crane
06/18/2014CN103867122A Full-hydraulic mountain exploratory crawler drilling machine
06/18/2014CN103867121A Workover rig with rotary operation chamber assembly
06/18/2014CN103867120A Construction method of drilled grouting piles under special geological condition
06/18/2014CN103867119A Coal reservoir well completion renovation method
06/18/2014CN102747952B Hydraulic walking type percussion reverse circulation slot repairing machine
06/18/2014CN102704834B Frequency oscillation pile casing type drilling machine
06/18/2014CN102678048B Multi-stage hydraulic punching drill
06/18/2014CN102644476B Method for pumping gas of protected layer by layer penetration and hole drilling on high-position drilling fields of protecting layer machinery tunnel
06/18/2014CN102308057B Offset Stochastic control
06/18/2014CN101936133B Drilling machine for construction of cast-in-situ bored pile
06/17/2014US8752651 Downhole hydraulic jetting assembly, and method for stimulating a production wellbore
06/17/2014US8752650 Through the drill string or core bit DST system
06/17/2014US8752632 Assembly for use in a Christmas tree
06/17/2014US8752626 Compositions and methods for treatment of well bore tar
06/17/2014CA2697838C Method and apparatus for rotary mining
06/17/2014CA2603715C Method and apparatus for re-entering an abandoned well
06/13/2014CA2836182A1 Downhole drilling tool
06/13/2014CA2798807A1 Directional drilling tool
06/12/2014WO2014088770A1 Suction caisson with weakened section and method for installing the same
06/12/2014WO2014086969A2 Electrical device for well stimulation
06/12/2014WO2014085935A1 Back up directional and inclination sensors and method of operating same
06/12/2014US20140158435 Vibrator arrangement comprising a cable suspension penetrating into the ground
06/12/2014US20140158432 Downhole tool, method and assembly
06/12/2014US20140158428 Drill String Oscillation Methods
06/12/2014US20140158427 Directional Drilling Tool
06/12/2014US20140158425 Apparatus and system to remove debris from a laser-extended bore section
06/12/2014US20140158357 Nozzle selective perforating jet assembly
06/12/2014US20140157860 Method and arrangement for calibrating sensors in drilling equipment
06/11/2014EP2740883A1 Tool for locating and plugging lateral wellbores
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