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 3 - Rotary drilling
Patents for E21B 3 - Rotary drilling (4,061)
07/2014
07/09/2014CN203701940U 一种组装钻机 A method of assembling Rig
07/09/2014CN103912222A 滑动组件、旋挖钻机及其桅杆装置组件、旋挖钻机桅杆的加压油缸的免拆卸运输方法 Slide assembly, rotary drilling rig and mast assembly, rotary drilling rig mast pressurized cylinder disassembly free shipping methods
07/09/2014CN103912217A 一种用于科学钻探的液压驱动深孔岩心钻机 Hydraulic drive for scientific deep core drilling rig
07/09/2014CN103912216A 一种管棚钻机动力头 A pipe shed drill head
07/08/2014CA2659594C Method and system for managing a drilling operation in a multicomponent particulate system
07/03/2014WO2014105882A2 Bogey style torque bushing for top drive
07/03/2014US20140182868 Bogey style torque bushing for top drive
07/03/2014DE102012025480A1 Pipe-pulling type drilling device for decentralized promotion of high temperature terrestrial heat from large drilling depth, has high pressure pipe sections that are internally and externally coupled to short thin-walled pipe portion
07/02/2014CN203686154U 新型钻机动力头用水封 The new drill head with water seal
07/02/2014CN203685062U 一种方钻杆驱动辅助装置 One kind kelly drive auxiliary devices
07/02/2014CN203685048U 长螺旋钻机及其起架装置、起架装置用支撑机构 Long auger and from aircraft equipment, from the shelf device support mechanism
07/02/2014CN203685047U 一种长螺旋钻机及其斜撑 A long-auger and bracing
07/02/2014CN203685032U 一种岩石桩基成孔设备 One kind of rock pile into the hole equipment
07/02/2014CN203685021U 一种能上下游动且主动旋转的液压转盘 One kind can swim up and down and rotating hydraulic turntable initiative
07/02/2014CN203685020U 超轻便浅孔取样钻机 Ultra-lightweight shallow hole sampling rig
07/02/2014CN203685019U 一种长螺旋钻机 A long-auger
07/02/2014CN203685018U 一种钻机液压顶部驱动装置 A hydraulic top drive rig
07/02/2014CN203685017U 一种全液压履带式切削钻机的双泵液压系统 A fully hydraulic crawler rig cutting double pump hydraulic system
07/02/2014CN203685016U 一种带控制装置的钻机动力头 A drill head with a control device
07/02/2014CN203685015U 一种钻孔灌注桩方形孔成孔机 Bored one kind of square hole for machine
07/02/2014CN203685014U 一种长螺旋钻机 A long-auger
07/02/2014CN102037206B 顶部驱动设备 Top drive apparatus
06/2014
06/26/2014US20140175749 Device for producing a bore in the ground, rotary drive device and rotary seal arrangement
06/25/2014CN203669768U 一种旋挖钻机 One kind of rotary drilling rig
06/25/2014CN203669732U 旋挖钻机混合动力切换装置 Rotary Drilling Rig hybrid switching device
06/25/2014CN203669731U 一种长螺旋钻机及其动力头 A long-auger and powerhead
06/25/2014CN203669730U 一种改进的液压破碎锤式旋挖钻机 An improved hydraulic breaker type rotary drilling rig
06/25/2014CN203669729U 长螺旋钻机起架装置及使用该起架装置的长螺旋钻机 Long auger from the frame means and the use of the device from the rack long auger
06/25/2014CN203669728U 动力头用电机连接座及使用该电机连接座的动力头和钻机 Power head motor connection seat and use the seat of power head motor connection and rig
06/25/2014CN203667878U 一种长螺旋钻机及其卷扬系统 A long-auger and winch system
06/25/2014CN103883260A 三轴三角形水泥搅拌钻杆及施工方法 Triaxial triangle cement mixing drill and construction methods
06/25/2014CN103883245A 一种液压手动钻 A hydraulic hand drill
06/25/2014CN103882861A 梅花形多轴水泥搅拌钻杆及施工方法 Torx multiaxial cement mixing drill and construction methods
06/25/2014CN102677716B 活动臂成槽机 Arm into slot machines
06/25/2014CN102251767B 旋挖钻机桅杆全轨迹控制系统及其控制方法 Rotary drilling rig mast whole trajectory control system and control method
06/25/2014CN102168555B 一种超低面全液压钻式采煤机 An ultra-low surface full hydraulic drilling Shearer
06/18/2014CN203655204U 孔底孤石抓取装置及旋挖钻机 Hole bottom boulder crawling device and rotary drilling rig
06/18/2014CN203655163U 一种旋挖钻机及其变径筒钻 One kind of rotary drilling rigs and drilling adjustable tube
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
06/18/2014CN203655148U 一种土壤修复高压注射旋喷钻机 A soil injection high pressure jet grouting rig repair
06/18/2014CN203655147U 一种深孔岩芯钻机用动力头 One kind of deep core drilling with a power head
06/18/2014CN203655146U 一种传动结构及工程机械 A motion transmitting structure and construction machinery
06/18/2014CN203655145U 一种螺旋式凿岩钻机 In a spiral-type drilling rig
06/18/2014CN103867685A Lifting device for rock drill
06/18/2014CN103867684A Double speed ratio rotation reducer
06/18/2014CN103867117A Underneath type multifunctional large-torque drilling machine transmission device
06/18/2014CN103867116A Device of floor-type rotary lifting drilling tool of pile driver
06/18/2014CN102704519B Underground concrete wall making machine
06/18/2014CN102635308B Drilling rig power head
06/18/2014CN102325945B Jet grouting equipment
06/14/2014CA2799910A1 Drive head for a wellhead
06/11/2014CN203641464U 一种旋挖钻机动力头箱体的密封结构 An auger drill head sealing structure cabinet
06/11/2014CN203640601U 欠平衡钻井旋转控制头的动力房 UBD rotating control head power house
06/11/2014CN203639904U 一种水泥搅拌桩机 A cement stirring pile
06/11/2014CN203639040U 旋挖钻机起吊装置、起吊系统及具有其的旋挖钻机 Rotary drilling rig lifting devices, lifting systems and has its rotary drilling rig
06/11/2014CN103850648A Automatic portable rig for tunnel blasting construction
06/11/2014CN103850647A Hoop rock blasting rack for tunnel blasting construction
06/11/2014CN103850646A Toroidal drilling and blasting device for tunnel blasting operation
06/11/2014CN103850249A Construction technology for long-spiral cast-in-place pile extruded into rock
06/11/2014CN103321474B Hole-drilling pole-erecting vehicle
06/11/2014CN102330537B Tunnel drilling machine and hydraulic power head device thereof
06/05/2014US20140151126 Drilling device and method for producing a borehole
06/04/2014EP2737153A2 Device for producing a bore in the ground, rotary drive device and rotary seal arrangement
06/04/2014CN203626598U 一种可旋转的传动链条箱的固定装置 A rotatable fixing device drive chain box
06/04/2014CN203626597U 复杂地质用变频式钻机结构 Complex geological structure with variable frequency rig
06/04/2014CN103835646A Ground auger with blocking plate
05/2014
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
05/28/2014CN203614027U 钻机链条传动连接装置 Rig chain drive connecting device
05/28/2014CN203614026U 一种钻机链轮 One kind of rig sprocket
05/28/2014CN203614025U 顶部驱动钻机专用伺服机械变速器 Top drive drilling rig dedicated servo mechanical transmission
05/28/2014CN203614024U 一种自动控制转速的凿岩机 An automatic control the speed of the drilling machine
05/28/2014CN103821454A 全断面施工瓦斯抽放钻车 Full-face construction of gas drainage drills
05/28/2014CN102425376B 一种旋挖钻机用的钻具及包括该钻具的旋挖钻机 One kind of rotary drilling rig with drilling and include the drilling of rotary drilling rig
05/22/2014WO2013173101A3 Drilling rig carriage movable along racks and including pinions driven by electric motors
05/22/2014US20140139006 Advancing longwall system for surface mining
05/22/2014US20140138113 Driving head for telescopic drill rods and machine comprising said head
05/21/2014CN203603756U 工程钻机用转盘前后调节装置 Rig with front and rear wheel adjustment device
05/21/2014CN103806834A 护筒压拔钻机 Casing pressure pulling rig
05/21/2014CN103256002B 一种旋挖钻机及其施工方法 One kind of rotary drilling rig and construction method
05/21/2014CN103256001B 一种旋挖钻机及其施工方法 One kind of rotary drilling rig and construction method
05/21/2014CN102787802B 物探钻机用动力头 Geophysical rig with power head
05/21/2014CN102275842B 一种旋挖钻机及其绳索限位装置 One kind of rotary drilling rig and rope stopper
05/20/2014US8727039 Torque measuring top drive
05/20/2014US8726984 Rotary table device for a pipe string
05/20/2014CA2757380C Surface communication apparatus and method for use with drill string telemetry
05/14/2014CN203594355U 一种顶驱动力水龙头 One kind of top driving force faucet
05/14/2014CN203594354U 泵压反循环钻井系统 Pump reverse circulation drilling system
05/14/2014CN203594353U 煤矿打眼用部件 Mine drill member
05/14/2014CN103790512A 一种旋挖钻机及其动力头装置 One kind of rotary drilling rig and power head unit
05/13/2014US8720599 Power tool with rotatable tool holder
05/13/2014CA2780097C Top drive drilling system and other applications using a low speed direct drive ac motor
05/07/2014CN203584299U 一种稳定快捷的大型抗拔锚杆机 A stable and efficient large-scale pullout bolting machine
05/07/2014CN203584298U 用于软煤岩钻进双通道多孔紊流卸压钻具 For soft coal and rock drilling Dual porous turbulent relief drill
05/07/2014CN103774984A 模块化顶部驱动钻井装置 Modular top drive drilling system
05/06/2014US8714282 Hand-held power tool
05/01/2014US20140116780 Hybrid Bearings for Downhole Motors
04/2014
04/30/2014CN203570198U Secure and rapid drilling machine for large mining height working face
04/30/2014CN203568740U Winding plant with heat dissipation function and rotary drilling rig with winding plant
04/30/2014CN103758451A Gyrator power head with buffer device
04/30/2014CN103758450A Self-drilling anchor rod boring device capable of reaming at the same time
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