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)
12/2014
12/10/2014CN204002544U 一种岩心钻机动力头提升装置 One kind of core drill head lifting device
12/10/2014CN204002543U 一种钻机动力头双动力传动输出机构 One kind of drill head dual output power transmission mechanism
12/10/2014CN204002542U 基于便捷式钻机动力头的耐磨锁紧结构 Locking structure based wearable portable drill head
12/10/2014CN204002541U 加压油缸固定装置和旋挖钻机 Pressurized cylinder fixtures and rotary drilling rig
12/10/2014CN204002540U 一种钻机转动装置 One kind of rig rotating device
12/10/2014CN204002539U 轻便钻地锚工具 Portable drill anchor tool
12/10/2014CN203992982U 快速接链器 Quick connect the chain
12/10/2014CN104196444A 一种可无级调速的切削钻机 One kind stepless cutting rig
12/10/2014CN102720429B 一种液压驱动的凿岩装置 A hydraulically driven drilling apparatus
12/10/2014CN102706553B 测量方法、测量装置和旋挖钻机 Measurement method, measuring devices and rotary drilling rig
12/10/2014CN102418726B 自降温旋挖钻机动力头液压马达系统及旋挖钻机 Since the cooling power head rotary drilling rig hydraulic motor system and rotary drilling rig
11/2014
11/25/2014US8893825 Telescoping drilling derrick with guide track and top drive guide assembly
11/25/2014US8893820 Drive system for interconnecting attachment devices and handheld rotary power tools
11/18/2014US8887828 Remotely adjustable feed system
10/2014
10/28/2014US8869912 Electric power tool with battery pack
10/09/2014WO2014161212A1 Detachable combined-type drive key for rotary drilling rig power head
10/07/2014US8854045 Electronics for a thin bed array induction logging system
10/02/2014WO2014155147A2 Composition, system, and method for treating water systems
09/2014
09/30/2014US8844616 Method for withdrawal and insertion of a drill pipe string in a borehole and also a device for use when practicing the method
09/25/2014WO2014151494A1 Top drive main shaft with threaded load nut
09/25/2014WO2014150058A1 Downhole turbine motor and related assemblies
09/25/2014WO2014146910A2 Top drive for a drill string
09/25/2014US20140284107 Small drilling apparatus
09/25/2014DE102013102805A1 Kraftdrehkopf für ein Bohrgestänge Top drive drill pipe
09/23/2014US8843220 Position and velocity measurement tool for standard and directional drilling
09/23/2014US8839884 Direct modular top drive with pipe handler module and methods
09/18/2014US20140274549 Top drive systems for wellbore and drilling operations
09/18/2014US20140265528 Cutter head for longwall shearer
09/16/2014CA2709506C Top drive apparatus
09/16/2014CA2631313C Top drive drilling apparatus
09/14/2014CA2845338A1 High-speed rod-driven downhole pump
09/11/2014DE102013203756A1 Antriebsvorrichtung zum Antrieb von Bohrgestänge und Verfahren zum Betrieb einer solchen Antriebsvorrichtung Drive means for driving drill string and method for operating such a drive device
09/02/2014CA2630793C Top drive drilling apparatus
08/2014
08/28/2014US20140238749 Drilling tool and method for earth drilling
08/19/2014US8807208 Method for using a power swivel with tilt
08/19/2014CA2756624C Top drive for casing connection
08/14/2014US20140227043 Apparatus and method for installing ground anchoring systems
08/13/2014EP2765271A1 Drilling table
08/13/2014CN203769644U 超导电机直驱驱动的顶驱装置 Superconducting direct-drive motor-driven top drive unit
08/13/2014CN203769643U 用于泥岩地区的地源热泵钻井设备 GSHP drilling equipment for shale region
08/13/2014CN103982133A 一种用于不压井修井机的液压转盘 A hydraulic snubbing workover turntable
08/13/2014CN103982132A 一种地质勘探多工艺钻机动力头 More than one kind of geological exploration craft drill head
08/13/2014CN102889054B 动力头和旋挖钻机 Power head and rotary drilling rig
08/07/2014US20140216820 Drilling table
08/06/2014CN203756027U 用于超深井石油钻机的两轴动力输入转盘 Two shaft power for ultra-deep drilling rig turntable input
08/06/2014CN203756026U 一种石油钻机上转盘独立驱动装置链条箱 An oil rig on a separate drive turntable chain box
08/06/2014CN203756025U 一种钻机及其回转装置 One kind of rotary drilling rigs and equipment
08/06/2014CN203756024U 双循环钻机动力头 Dual circulation drill head
08/06/2014CN203756023U 工程钻机用转盘式动力输出装置 Rig with rotary power output device
08/06/2014CN203756022U 一种液压手动钻 A hydraulic hand drill
08/06/2014CN203755306U 带水冷装置的加压式长螺旋钻孔桩机 Pressurized auger drilling pile with water cooling device
08/06/2014CN203755305U 加压式长螺旋钻孔桩机 Pressurized auger drilling pile
08/06/2014CN103968044A 一种用于顶驱传动箱的双围堰润滑密封结构 A top drive gearbox lubricating seal structure for double cofferdam
08/06/2014CN103967407A 自动加压装置、回转器和钻机 Automatic pressure device, turning and drilling rig
08/06/2014CN103967406A 能够加快石油开采效率的钻探系统 To accelerate the efficiency of oil drilling system
08/06/2014CN102877785B 动力头和旋挖钻机 Power head and rotary drilling rig
08/06/2014CN101688430B 顶驱设备 Top Drive Equipment
08/05/2014US8794351 Device and method for drilling with continuous tool rotation and continuous drilling fluid supply
07/2014
07/30/2014CN203743264U 转盘用远程控制锁紧装置 Wheel locking device with a remote control
07/30/2014CN203743101U 一种旋挖钻机动力头多扭矩液压系统 One kind of rotary drilling rig power head multi-torque hydraulic system
07/30/2014CN203743100U 旋挖钻机动力头多扭矩液压系统 Rotary drilling rig power head multi-torque hydraulic system
07/30/2014CN203742443U 护筒压拔钻机 Casing pressure pulling rig
07/30/2014CN203742433U 矿用液压坑道钻机给进机构 Mine hydraulic tunnel drilling feed mechanism
07/30/2014CN203742432U 大直径旋挖钻孔桩硬岩钻具 Large diameter rotary drilling hard rock drill bored piles
07/30/2014CN103953282A 长螺旋方孔钻机 Long spiral square hole drill
07/30/2014CN103953280A 一种公路桥梁桩基水钻成孔装置及钻孔方法 One kind of highway bridge pile into the hole diamond drilling apparatus and method
07/30/2014CN102654021B 隧道打孔机 Tunnel drilling machine
07/29/2014CA2708520C Method and apparatus for drilling auxiliary holes
07/23/2014CN203730455U 旋挖钻机动力头缓冲补油系统 Rotary drilling rig power head cushion fill oil system
07/23/2014CN203729894U 修井钻塞管柱 Workover drill string stopper
07/23/2014CN203729866U 钻机的动力头转盘 Rig power head turntable
07/23/2014CN203729865U 工程钻机的动力头转盘 Rig power head turntable
07/23/2014CN203729864U 转盘双向锁定掣子装置 Dial bidirectional locking detent device
07/23/2014CN203729863U 液压转盘驱动系统 Hydraulic wheel drive system
07/23/2014CN203729862U 一种新型动力水龙头控制系统 A new power faucet control system
07/23/2014CN203729861U 一种旋挖钻机及其动力头装置 One kind of rotary drilling rig and power head unit
07/23/2014CN203729860U 一种自带托架的潜孔锤 One kind of comes with the bracket DTH
07/23/2014CN203729859U 旋挖钻机可拆卸的组合式扩展鹅头 Rotary drilling rig detachable modular expansion goose head
07/23/2014CN103939015A 灌注方桩钻机 Perfusion square pile rig
07/23/2014CN103939007A 一种用于钻井的顶部驱动钻井装置 A top drive drilling system for drilling
07/23/2014CN103939006A 一种新型煤炭坑道钻机 A new coal drilling rig
07/23/2014CN103938629A 加压式长螺旋钻孔桩机及利用该桩机钻孔的方法 Pressurized long bored pile and drilled using the method of the pile
07/16/2014CN203716839U 一种钻孔机用双行星减速机变速动力头 One kind of drilling machine with double planetary gear speed power head
07/16/2014CN203716838U 带缓冲装置的回转器动力头 Rotator power head with a cushioning device
07/16/2014CN203716150U 一种钻孔压桩组合式桩机 Pressure piles for a drilled pile driver modular
07/16/2014CN103924916A 一种活动键固定可靠的钻机组合式驱动套 An activity keyed reliable modular rig driver sets
07/16/2014CN101688431B 顶部驱动设备及其提环 Top drive apparatus and bails
07/09/2014CN203702732U 一种适用于旋挖钻机的螺旋嵌入式油缸导向套 One for rotary drilling rig spiral embedded cylinder guide sleeve
07/09/2014CN203702713U 全套管全回转钻机副夹紧油缸控制阀组 A full tube full swing rig vice clamping cylinder control valve
07/09/2014CN203702125U 一种多功能旋挖钻机智能模式识别装置 A versatile rotary drilling rig intelligent pattern recognition device
07/09/2014CN203702005U 一种新型旋挖钻机销轴止动结构 A new rotary drilling rig pin stopper structure
07/09/2014CN203702003U 复合步履式桩架及使用该桩架的长螺旋钻机 Composite walking pile frame and use the long auger pile frame
07/09/2014CN203701988U 旋挖钻具和旋挖钻机 Auger drilling and rotary drilling rig
07/09/2014CN203701947U 新型旋挖钻机辅卷扬驱动装置 The new rotary drilling rig and auxiliary winch drive
07/09/2014CN203701946U 全断面施工瓦斯抽放钻车变幅装置 Full Section construction of gas drainage drilling vehicle luffing device
07/09/2014CN203701945U 回转平台及桩工机械 Slewing platform and piling machinery
07/09/2014CN203701944U 回转平台及工程机械 Slewing platform and construction machinery
07/09/2014CN203701943U 全断面钻具和旋挖钻机 Full section drilling and rotary drilling rig
07/09/2014CN203701942U 一种用于旋挖钻机的加压油缸末端耐磨固定机构 A rotary drilling rig pressurized cylinder end wearable fixing mechanism
07/09/2014CN203701941U 新型旋挖钻机加压及主卷扬系统 The new rotary drilling rig pressurized and the main winch system
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