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 21 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
Patents for E21B 21 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor (13,780)
08/2014
08/19/2014CA2692081C Drilling fluid additive and method for improving lubricity or increasing rate of penetration in a drilling operation
08/14/2014WO2014124104A1 Continuous circulation and communication drilling system
08/14/2014WO2014123524A1 Two phase mud flow usage with dual-string drilling system
08/14/2014US20140224542 System and method for inhibiting an explosive atmosphere in open riser subsea mud return drilling systems
08/14/2014US20140224473 Methods and multi-purpose apparatus for dispensing and circulating fluid in wellbore casing
08/13/2014EP2764207A1 Wellbore influx detection with drill string distributed measurements
08/13/2014EP2764197A2 System and method for inhibiting an explosive atmosphere in open riser subsea mud return drilling systems
08/13/2014EP2764164A1 Fluid containment and management system
08/13/2014CN203769720U 多功能螺杆钻具旁通阀 Multifunction screw drill bypass valve
08/13/2014CN203769691U 后锚固筋锚孔清孔工具 After anchoring tendons anchor bore hole cleaning tool
08/13/2014CN203769690U 钻具止回阀 Drill check
08/13/2014CN203769689U 一种油井作业用自动灌液装置 One kind of oil wells with automatic irrigation fluid device
08/13/2014CN203769688U 修井液固相过滤装置 Solid workover fluid filtration device
08/13/2014CN203769687U 液压钻机一级除尘罐 Hydraulic drill a dust canister
08/13/2014CN203769686U 一种煤矿用孔口除尘装置 One kind of coal dust removal device with openings
08/13/2014CN203769685U 一种水平井冲砂装置 A horizontal well sand washing equipment
08/13/2014CN203769668U 深水用注水泥冲洗短节 Deepwater cementing rinse with a short section
08/13/2014CN103987898A 流体容纳及管理系统 Fluid containment and management systems
08/13/2014CN103982174A 随钻当量密度测量方法及装置 Equivalent density measurement-while-drilling method and apparatus
08/13/2014CN103982159A 可投球式反循环阀 Pitching can reverse circulation valve
08/13/2014CN103982155A 一种可倾斜的实验井口密封装置 A tiltable experiment wellhead seal assembly
08/13/2014CN103982151A 一种瓦斯抽放钻孔用捕尘系统及捕尘方法 One kind of gas drainage drilling dust capture system and method for catching dust
08/13/2014CN103982134A 一种反循环钻井工具 An anti-circulation drilling tools
08/13/2014CN103981860A 一种干取土节能潜孔锤灌注桩及其设备 A dry earth saving DTH pile and its equipment
08/13/2014CN102605768B 一种钻孔灌装桩清孔装置 Filling pile for a drilled hole cleaning device
08/12/2014US8800659 Equipment for quick dispersion of polyacrylamide powder for fracturing operations
08/12/2014US8800590 Thermally-actuated gas lift safety valve
08/12/2014CA2734461C Multiphase drilling systems and methods
08/07/2014WO2014120060A1 Dust controlling device for rock drilling
08/07/2014WO2013164478A3 Method of drilling a subterranean borehole
08/06/2014CN203756162U 一种便携式录井岩屑清洗装置 A portable logging debris cleaning device
08/06/2014CN203756096U 一种注水泥完井后筛管外水泥环挤压酸洗管柱 Screenless completions after an injection of cement in cement squeeze pickling column
08/06/2014CN203756095U 一种注水泥完井后筛管外水泥环挤压装置 Screenless completions after an injection of cement in cement extrusion device
08/06/2014CN203756094U 一种注水泥完井后筛管外水泥环挤压酸洗管柱 Screenless completions after an injection of cement in cement squeeze pickling column
08/06/2014CN203756089U 深水桩基施工虹吸式自调节泥浆循环系统 Pile Foundation Construction deepwater self-regulating siphon mud circulation system
08/06/2014CN203756088U 内置阀套式洗井阀 Built-in flushing valve valve sleeve type
08/06/2014CN203756087U 一种平衡压力钻井控压装置 A balanced pressure drilling pressure control device
08/06/2014CN203756086U 压井液、完井液精细过滤装置 Killing fluid, completion fluid fine filtration device
08/06/2014CN203756085U 一种油气井放喷一体化处理装置 Integrated oil gas well blowout processing device
08/06/2014CN203756084U 模块钻机专用低压泥浆管汇 Module rigs dedicated low-pressure slurry manifold
08/06/2014CN203756083U 海洋修井机专用泥浆配料管汇 Ocean workover special mud ingredients manifold
08/06/2014CN203756062U 一种钻井用井下过滤短节 One kind of downhole drilling a short section of the filter
08/06/2014CN103967437A 井下压风定点取样装置及取样工艺 Downhole pressure air sampling devices and sampling process sentinel
08/06/2014CN103967435A 一种煤层气井井底清砂装置 One kind of coalbed methane wells downhole sand unit
08/06/2014CN103965842A 一种防垮塌钻井液及其施工方法 An anti-collapse of drilling and construction method
08/06/2014CN102902230B 用于消泡装置中的自动控制系统 Defoaming device for the automatic control system
08/06/2014CN102828689B 电缆悬挂式气体局部反循环电动机械取芯钻具 Cable hanging gas partial reverse circulation drill coring electrical machinery
08/05/2014US8795535 Apparatus and method for drilling fluid density separator utilizing rotating disks
08/05/2014CA2765752C Method and device for maintaining sub-cooled fluid to esp system
08/05/2014CA2734546C Managed pressure and/or temperature drilling system and method
07/2014
07/31/2014WO2014116960A1 Mobile well water desalinization system and method of operation
07/31/2014WO2014116934A1 Hydraulic activation of mechanically operated bottom hole assembly tool
07/31/2014WO2014116728A2 Contingent continuous circulation drilling system
07/31/2014WO2014116248A1 Systems and methods for monitoring and characterizing fluids in a subterranean formation using hookload
07/31/2014WO2014116202A1 Interval control valve with varied radial spacings
07/31/2014WO2014116159A1 Dust controlling device for rock drilling
07/31/2014WO2014116158A1 Dust controlling device
07/31/2014WO2013152078A3 Drilling information system
07/31/2014WO2013152075A3 Drilling control system
07/31/2014WO2013152074A3 Wellbore information system
07/31/2014WO2013152073A3 Drilling control and information system
07/31/2014WO2013152072A3 Drilling control and information system
07/31/2014US20140209393 Precipitated Particles and Wellbore Fluids and Methods Relating Thereto
07/31/2014US20140209392 Wellbore Fluids Comprising Mineral Particles and Methods Relating Thereto
07/31/2014US20140209391 Wellbore Fluids Comprising Mineral Particles and Methods Relating Thereto
07/31/2014US20140209388 Wellbore Fluids Comprising Mineral Particles and Methods Relating Thereto
07/31/2014US20140209386 Precipitated Particles and Wellbore Fluids and Methods Relating Thereto
07/31/2014US20140209290 Wellbore Fluids Comprising Mineral Particles and Methods Relating Thereto
07/31/2014DE102012010199B4 Verfahren und Vorrichtung zum Erstellen eines Bohrloches Method and apparatus for creating a borehole
07/30/2014EP2758145A1 Three-phase separation system for drilling fluids and drill cuttings
07/30/2014CN203742550U 可分层洗井喷砂滑套 Sleeve can be layered sand wash blowout
07/30/2014CN203742498U 铁质磨料射流钻井用固相处理装置 Ferrous abrasive jet drilling solids handling equipment
07/30/2014CN203742497U 用于维护钻井液的自动旋转泥浆枪 For the maintenance of drilling mud gun automatic rotation
07/30/2014CN203742496U 一种钻井废液零排放系统 One kind of drilling waste zero-emissions system
07/30/2014CN203742495U 一种高压旋转冲洗工具 A high pressure rotary washing tool
07/30/2014CN203742470U 一种用于钻井的连续循环短节 A short section of a continuous cycle for drilling
07/30/2014CN102296933B 微型折叠式自动钻井机 Miniature folding automatic drilling machine
07/30/2014CN102216565B 一种注射式密封的阀门和通道系统 An injection valve seal and channel system
07/29/2014US8793114 Method and system for drilling rig testing using virtualized components
07/29/2014US8789622 Continuous microwave particulate treatment system
07/29/2014US8789583 Electromagnetic treatment of contaminated materials
07/29/2014CA2758495C Slickline conveyed debris management system
07/29/2014CA2708294C A method and apparatus for processing solids laden drilling mud having lost circulation material therein
07/29/2014CA2641332C Stimulation method
07/24/2014WO2014113144A1 Drilling a well with predicting sagged fluid composition and mud weight
07/24/2014WO2014113140A1 Downhole anchoring systems and methods of using same
07/24/2014WO2014111897A1 Methods and apparatus for estimating borehole mud slownesses
07/24/2014US20140202767 Contingent continuous circulation drilling system
07/24/2014DE102013000771A1 Vorrichtung zum Abfördern von Bohrklein Device for conveying drill cuttings
07/23/2014EP2757228A1 Rotating continuous flow sub
07/23/2014EP2756157A2 Magnetically coupled safety valve with satellite inner magnets
07/23/2014CN203729919U 牙轮钻机钻具动态封尘装置 Dynamic sealing cone drill rig dust device
07/23/2014CN203729918U 一种钻车集尘装置 A car dust collection apparatus drill
07/23/2014CN203729917U 一种冲砂笔尖 One kind of red sand nib
07/23/2014CN203729916U 油井洗井冲砂工具 Well flushing red sand tool
07/23/2014CN203729915U 一种三向旋流冲砂导锥 A three-washed sand to swirl guide cone
07/23/2014CN203725378U 一种波浪型筛网 A wave-type screen
07/23/2014CN103946475A 与钻孔装置一起使用的辅助装置 Auxiliary device used in conjunction with the drilling device
07/23/2014CN103939129A 钻抽一体化装置 Integrated Device pumping drilling
07/23/2014CN103939043A 一种修复细管井淤堵的方法 A prosthetic fine tubewells clogging methods
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