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)
05/2014
05/28/2014CN103821454A 全断面施工瓦斯抽放钻车 Full-face construction of gas drainage drills
05/28/2014CN103821453A 水力脉冲增压欠平衡钻井装置 UBD pressurized hydraulic pulse device
05/28/2014CN102493768B 高频脉冲射流共振钻井装置及其钻井方法 Resonance frequency pulse jet drilling apparatus and drilling method
05/28/2014CN102434098B 煤矿用液压五臂锚杆钻车 Mine hydraulic five-arm bolt Drill
05/27/2014US8733472 Multi-operational multi-drilling system
05/27/2014US8733452 Riser section connector with flanges and external locking ring
05/27/2014CA2795478C A drill bit assembly having aligned features
05/22/2014WO2014078663A2 High power laser hydraulic fructuring, stimulation, tools systems and methods
05/22/2014WO2014078028A1 Apparatus and method for milling/drilling windows and lateral wellbores without locking using unlocked fluid-motor
05/22/2014US20140138157 Drill bit for a drilling apparatus
05/22/2014US20140138156 Advanced steering tool system, method and apparatus
05/21/2014EP2732121A1 An apparatus and system to remove debris from a laser-extended bore section
05/21/2014EP2732120A2 An improved directional drilling tool
05/21/2014EP2732119A1 Rotary steerable drilling system and method
05/21/2014CN203603795U 一种鼠洞钻水泥设备 One kind of rat hole drilling cement equipment
05/21/2014CN203603765U 一种井下振动钻井短节 A downhole vibration drilling a short section
05/21/2014CN203603764U 套管自动灌浆工具 Casing automatic filling tool
05/21/2014CN203603763U 可解封裸眼侧钻工具 Openhole sidetrack can be re-opened Tools
05/21/2014CN203603762U 凿岩台车的钻杆输送装置 Drill rig drill delivery device
05/21/2014CN203603761U 牙轮钻机用回转及提升/加压装置 Cone drills, rotary and lifting / pressing device
05/21/2014CN203603760U 一种井下钻具 A downhole drilling tool
05/21/2014CN203603759U 扩大冲击钻主机其钻孔行程的液压推动系统 Expand its drilling impact drill master stroke hydraulic propulsion system
05/21/2014CN103806837A 一种油田水平井完井工艺 One kind of oil horizontal well completion technology
05/21/2014CN103806836A 自进式旋转射流多孔喷嘴 Since the porous nozzle into the rotary jet
05/21/2014CN103806835A 便携式可控垂直钻机 Portable controlled vertical drilling rig
05/21/2014CN103806834A 护筒压拔钻机 Casing pressure pulling rig
05/21/2014CN103806833A 一种高速破岩钻具 A high speed broken rock drill
05/21/2014CN103803202A 磨料旋转储罐装置 Abrasive rotating tank means
05/21/2014CN102733754B 一种脉冲等离子体钻机系统 Drill a pulsed plasma system
05/21/2014CN102493766B 一种井眼轨道控制方法及其系统 A well trajectory control method and system
05/21/2014CN102454364B 一种扭转冲击钻井工具 One kind of reverse the impact of drilling tools
05/21/2014CN102296929B 非开挖导向钻机用搅泥沙器 Trenchless-oriented drills, stir sediment filter
05/20/2014US8727041 Earth-boring tools having expandable members and related methods
05/20/2014US8727036 System and method for drilling
05/20/2014US8727012 Gasket test protector sleeve for subsea mineral extraction equipment
05/20/2014CA2715603C Passive vertical drilling motor stabilization
05/19/2014CA2833730A1 Mechanized and automated well service rig system
05/19/2014CA2833729A1 Mechanized and automated catwalk system
05/15/2014WO2014074774A1 Rotary steerable drilling apparatus
05/15/2014WO2014072381A1 Method and system for transporting a hydrocarbon fluid
05/15/2014WO2014071520A1 Downhole electromagnetic telemetry apparatus
05/15/2014WO2014071494A1 Universal downhole probe system
05/15/2014US20140131113 Drilling Unit Operator Station
05/15/2014US20140131112 Apparatus for Keeping a Downhole Drilling Tool Vertically Aligned
05/15/2014US20140131110 Make-Up/Break-Out Device For Drilling Hammers
05/15/2014US20140131107 Device and method usable in well drilling and other well operations
05/15/2014US20140131106 Rotary steerable drilling apparatus
05/15/2014US20140131105 Double Shaft Drilling Apparatus with Hanger Bearings
05/15/2014US20140131102 System and method for determining incremental progression between survey points while drilling
05/15/2014US20140131099 System And Method For Managing And/Or Using Data For Tools In A Wellbore
05/15/2014US20140131098 Method For Motion Compensation Using Wired Drill Pipe
05/15/2014US20140131036 Apparatus and Method for Milling/Drilling Windows and Lateral Wellbores Without Locking Using Unlocked Fluid-Motor
05/14/2014EP2729652A1 Method and arrangement for calibrating sensors in drilling equipment
05/14/2014CN203594365U 近钻头扭转冲击器 Near the impactor twist drill
05/14/2014CN203594364U 液压钻机下套管工具 Hydraulic drill casing Tools
05/14/2014CN203594363U 超短半径钻完井专用下三连接总承 Short radius drilling and completion next three dedicated principal connection
05/14/2014CN203594362U 超短半径钻完井专用上三连接总承 Three connected short radius drilling and completion dedicated principal
05/14/2014CN203594361U 零半径径向水射流喷射导向器 Zero radius radial water jet spray guide
05/14/2014CN203594360U 矿井打眼系统 Mine drilling system
05/14/2014CN203594359U 一种四臂锚杆锚索钻车 Drill a four-arm bolt and cable cars
05/14/2014CN203594358U 一种全液压锚杆钻车 A fully hydraulic anchor drill rig
05/14/2014CN203594357U 一种双升降平台锚杆锚索钻车及其升降机构 A dual lifting platform drilling bolt and cable car and lift mechanism
05/14/2014CN103791159A 小直径管道的顶管施工方法 Pipe jacking method for small diameter pipe
05/14/2014CN103790521A 水平井安全高效泥浆钻井射流磨钻头 Safe and efficient mud drilling horizontal wells jet mill drill
05/14/2014CN103790517A 钻井方法和利用声波式钻井头的声波钻井方法 Drilling method and sonic drilling method uses sound waves drilling head
05/14/2014CN103790516A 一种利用热力射流高效破岩的钻井新方法 New drilling method using heat efficient jet breaking rocks
05/14/2014CN103790515A 一种利用激光钻径向井的新方法 A new method of laser drilling wells using radial
05/14/2014CN103790514A 伞钻悬吊系统 Umbrella drilling suspension system
05/14/2014CN102518399B 一种桅杆及使用该桅杆的长螺旋钻机 One kind of mast and the mast using long auger
05/14/2014CN102425372B 振动钻进式冲挖钻机 Vibration punching and drilling rig drilling
05/14/2014CN102124180B 双bha钻井系统 Dual bha drilling system
05/13/2014US8721182 Bent bearing assembly for downhole mud motor
05/13/2014US8720609 Drill bit with continuously sharp edge cutting elements
05/13/2014US8720608 Wellbore instruments using magnetic motion converters
05/13/2014US8720607 Downhole tool having a friction stirred surface region
05/13/2014US8720605 System for directionally drilling a borehole with a rotary drilling system
05/13/2014US8720604 Method and system for steering a directional drilling system
05/13/2014US8720603 Underwater drilling arrangement and method for making a bore
05/13/2014US8720582 Apparatus and methods for providing tubing into a subsea well
05/13/2014US8720575 Shear laser module and method of retrofitting and use
05/13/2014US8720545 Continuous flow drilling systems and methods
05/13/2014CA2776158C Wellbore milling tool with wear pad
05/13/2014CA2738196C Drilling rig for deep well drilling
05/08/2014WO2014071108A1 Turbodrill using a balance drum
05/08/2014WO2014070142A1 Borehole selector assembly
05/08/2014WO2014070073A1 Drilling rig and method of manoeuvring a drilling rig
05/08/2014WO2014069947A1 Punching device using water hammer
05/08/2014WO2014066981A1 Methods and systems for improved drilling operations using real-time and historical drilling data
05/08/2014WO2013113002A3 A method to control the environment in a laser path
05/08/2014WO2013046028A3 Point the bit rotary steerable system
05/08/2014US20140124268 CV Joint for Down Hole Motor and Method
05/08/2014US20140124201 Nozzle Selective Perforating Jet Assembly
05/07/2014EP2728104A1 Method for producing a horizontally drilled bore hole in the ground and horizontal drilling device
05/07/2014EP2726707A1 System and method for automatic weight-on-bit sensor calibration
05/07/2014CN203584314U 磨料水射流破岩钻头 Abrasive Waterjet broken rock drill
05/07/2014CN203584304U 一种旋转导向工具 A rotary steerable tools
05/07/2014CN203584303U 一种千米钻机立孔机 One kind of one thousand meters vertical hole drilling rig machine
05/07/2014CN203584302U 一种列车式步进装置 A train stepping device
05/07/2014CN203584301U 引孔设备 Cited hole equipment
05/07/2014CN203584300U 自带卷扬设备的锚杆机 Hoisting equipment comes bolting machine
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