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 47 - Survey of boreholes or wells
Patents for E21B 47 - Survey of boreholes or wells (31,352)
06/2014
06/04/2014CN103835699A Liter bucket consecutive metering device
06/04/2014CN103835698A Single-well and three-phase metering device
06/04/2014CN103835697A Single-well and three-phase metering device
06/04/2014CN103835696A Single-well metering device
06/04/2014CN103835664A Drill rod for wireless electromagnetic measurement-while-drilling signal transmission dipole drill string
06/04/2014CN102561969B Light and convenient resistance meeting preventive pressured cable lowering conveyor
06/04/2014CN102400671B Flexible connection device of logging-while-drilling instrument
06/04/2014CN102080537B Method and system for determining liquid-vapor interface between double horizontal SAGD (Steam Assisted Gravity Drainage) reservoir wells
06/04/2014CN101915089B Liquid feed device for simulating oil deposit flow
06/04/2014CN101372890B Creep determination technique
06/03/2014US8742329 Well flaw detection system (embodiments)
06/03/2014US8739867 Mass/volume estimation of contamination, removal and/or in situ treatment using subsurface pressure waves
06/03/2014CA2746081C Contactless position detection switch
06/03/2014CA2658136C System for communicating downhole information through a wellbore to a surface location
06/03/2014CA2599426C Apparatus for controlling a pressure control assembly in a hazardous area
06/03/2014CA2587679C Autonomous non-destructive inspection
05/2014
05/30/2014WO2014081524A1 Electromagnetic telemetry apparatus and methods for use in wellbore applications
05/30/2014WO2014081416A1 Acoustic signal enhancement apparatus, systems, and methods
05/30/2014WO2014079961A1 Downhole tool
05/29/2014US20140149043 Determining Fluid Pressure
05/29/2014US20140144226 Distributed Fluid Velocity Sensor and Associated Method
05/28/2014EP2735699A2 Method and apparatus for sensing in wellbores
05/28/2014EP2735695A1 Downhole tool
05/28/2014EP2735693A1 Tool for locating and plugging lateral wellbores
05/28/2014EP2734706A2 Method and system of displaying data associated with drilling a borehole
05/28/2014CN203616598U 油田用测井仪器开关腿控制盒 Oilfield logging instrument control box switch legs
05/28/2014CN203614100U 无线数据传送器 Wireless data transmitter
05/28/2014CN203614099U 磁传感井径测试仪 Magnetic sensor caliper tester
05/28/2014CN203614098U 无线立压采集分析装置 Wireless Li pressure acquisition and analysis apparatus
05/28/2014CN203614097U 一种钻井张力计 One kind of drilling tonometer
05/28/2014CN203614096U 探杆及全吸减震装置 Probe and full absorption damping device
05/28/2014CN203614095U 水泥环胶结强度评价装置 Cement bond strength evaluation device
05/28/2014CN203614094U 高温高压堵漏试验仪 High temperature and high pressure sealing tester
05/28/2014CN203614093U 一种超宽带随钻测井三维成像采集装置 An ultra wideband LWD three-dimensional imaging acquisition device
05/28/2014CN203614092U 双流量空心一体化测调装置 Integrated dual-flow hollow tone measurement device
05/28/2014CN203614091U 高集成度测井地面系统 Highly Integrated Logging System
05/28/2014CN203614078U 可测压双销合金旋塞阀 Can load two-pin plug alloys
05/28/2014CN203614066U 球悬挂式可回收钻井井眼轨迹测量仪器下入工具 Ball hanging recyclable drilling tool trajectory into the next measuring instruments
05/28/2014CN203612869U 一种防夹手的地滑轮组件 To a pinch hand pulley assembly
05/28/2014CN103827442A 钻头安装的数据获取系统及相联的数据传送设备和方法 Drill bit data acquisition system and data transmitting apparatus and method associated
05/28/2014CN103827433A 使井坐落于目标地带中的装置和方法 The well is located in the heart of the target device and method
05/28/2014CN103821502A 一种海洋管柱振动数据采集及传输装置 A MARINE string vibration data acquisition and transmission equipment
05/28/2014CN103821501A 含蜡油井关井再开井顶挤压力的实验装置及确定方法 Wax oil wells shut and then open the top of the pressing force of experimental apparatus and method for determining containing
05/28/2014CN103821500A 具有振动传感功能的煤层气井下压力计及其测量方法 CBM downhole pressure gauges and measuring method of vibration sensing function
05/28/2014CN103821499A 用于油井动液面深度检测的声音信号处理方法 The audio signal processing method for deep oil well fluid level detection
05/28/2014CN103821498A 用于钻孔高压压水试验的观测仪器埋设封堵系统 Observation instruments used for drilling high pressure water test buried closure system
05/28/2014CN103821497A 一种电极推靠器 An electrode biasing device
05/28/2014CN103821496A 一种油气排放物尺度检测装置 Scale oil gas emission detection device
05/28/2014CN103821495A 测井方法 Logging methods
05/28/2014CN103821485A 预测水驱油田含水上升率变化的方法 Prediction waterflood oil cut increasing rate of change
05/28/2014CN102536206B 一种磁性套管中基于磁测斜仪的钻井方位角测量方法 Drilling azimuth measuring method based on a magnetic sleeve magnetic inclinometer
05/28/2014CN102094622B 一种微球聚焦测井主电流线路的厚膜电路 A micro ball Focused Logging main current line Houmodianlu
05/27/2014US8736821 System and method for monitoring bending of a flexible riser
05/27/2014US8733665 Riser segment RFID tag mounting system and method
05/27/2014US8733438 System and method for obtaining load measurements in a wellbore
05/27/2014US8732968 Apparatus for measuring geologic strike and dip
05/27/2014CA2834480A1 Methods and apparatus for sensing in wellbores
05/27/2014CA2791214C Wireless communication system and method
05/27/2014CA2790841C Pressure sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation
05/27/2014CA2726526C Method for determining properties of a formation
05/27/2014CA2562086C Dynamic logging speed
05/22/2014WO2014078853A1 Net oil and gas well test system
05/22/2014WO2014078028A1 Apparatus and method for milling/drilling windows and lateral wellbores without locking using unlocked fluid-motor
05/22/2014WO2014078027A2 Method to detect drilling dysfunctions
05/22/2014WO2014077986A1 Optical push-pull interferometric sensors for electromagnetic sensing
05/22/2014WO2014077985A1 Well monitoring with optical electromagnetic sensors
05/22/2014WO2014077884A1 Systems and methods for determining enhanced equivalent circulating density and interval solids concentration in a well system using multiple sensors
05/22/2014WO2014077883A1 Systems and methods for performing high density sweep analysis using multiple sensors
05/22/2014WO2014077707A1 Sensor transportation apparatus and guide device
05/22/2014WO2014077697A1 Petroleum well imaging tool for a well object of unknown shape
05/22/2014WO2014077664A1 Down-hole intelligent communication system based on the real-time characterisation of the attenuation of signals in a coaxial cable used as a transmission medium
05/22/2014WO2014076440A1 Camera assembly for use in a subterranean well
05/22/2014WO2014075190A1 Electromagnetic telemetry gap sub assembly with insulating collar
05/22/2014WO2013178765A3 Methods and apparatus to detect fluid distributions
05/22/2014WO2013138034A3 Downhole measurement assembly, tool and method
05/22/2014US20140142855 Wellbore Instrument Clock Oscillator and Instrument System Made Therewith
05/22/2014US20140139350 System and method for providing broadband communications over power cabling
05/22/2014US20140139349 Systems and Methods for Detecting and Communicating Failure of Integral Surge Suppression in Drive Systems for Downhole Equipment
05/22/2014US20140137643 Multiphase flow metering system
05/22/2014US20140137642 Net oil and gas well test system
05/21/2014EP2732134A2 Method of acoustic surveying
05/21/2014EP2732133A1 Acoustic logging while drilling tool with active control of source orientation
05/21/2014EP2732132A2 Remotely activated downhole apparatus and methods
05/21/2014EP2732131A1 Positioning method
05/21/2014EP2732130A1 Formation testing in managed pressure drilling
05/21/2014CN203607538U 一种磁偶极子天线 A magnetic dipole antenna
05/21/2014CN203604355U 测井仪器偏心芯架连接结构 Eccentric core logging equipment rack connecting structure
05/21/2014CN203603893U 盘阀式正脉冲信号发生装置 The disc valve is a pulse signal generating means
05/21/2014CN203603892U 旋转导向系统的半自动化地面控制装置及信号解析系统 Semi-automatic rotary steerable systems and ground control device signal analysis system
05/21/2014CN203603891U 一种双示踪动态监测装置 A dual tracer dynamic monitoring device
05/21/2014CN203603890U 一种用于井间检测的同位素示踪剂的分量装置 Component of the apparatus for the detection of inter-well tracer isotope
05/21/2014CN203603889U 一种同位素示踪流量注聚剖面测井装置 An isotope tracer flow of polymer injection profile logging device
05/21/2014CN203603888U 一种防止产生污染的同位素示踪剂注入装置 A method for preventing pollution of the tracer injection device
05/21/2014CN203603887U 一种井面监测报警装置 A well face monitoring and alarm device
05/21/2014CN203603886U 一种数字测深仪 A digital depth sounder
05/21/2014CN203603885U 冻结钻孔陀螺测斜仪井下定心器 Freeze gyro inclinometer downhole drilling centralizer
05/21/2014CN203603884U 一种用于隧道施工的超深钻孔测斜仪 An ultra-deep drilling tunnel construction inclinometer
05/21/2014CN203603883U 一种光纤陀螺测斜仪定位装置 A fiber optic gyro inclinometer positioning device
05/21/2014CN203603882U 一种近钻头井斜测量短节 Near bit inclination measurement of short sections
05/21/2014CN203603881U 一种用于防止岩层探测记录仪探头碰触孔壁的装置 A rock touch probe logger probe means for preventing the cell wall
1 ... 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 ... 314