Patents for E21B 47 - Survey of boreholes or wells (31,352)
12/2011
12/28/2011CN102296947A 一种油田用速溶型微量元素示踪剂及制备方法 One kind of oil to use instant-type trace element tracer and preparation methods
12/28/2011CN102296946A 复杂结构井井筒固液两相变质量流动模拟系统 Complex structure of solid-liquid two-phase Shaft variable mass flow simulation system
12/28/2011CN102296943A 气井排液采气用柱塞工具 Gas wells drain plunger tool
12/28/2011CN101457639B 一种利用指示曲线测调油田注水井方法 A use of the curve indicates the measured tone method oilfield injection wells
12/28/2011CN101397905B 注水井分层静压组合仪 HIP stratified injection wells combination instrument
12/28/2011CN101358523B 井下差压式流量密度计 Downhole density differential pressure flow meter
12/27/2011US8082990 Method and system for placing sensor arrays and control assemblies in a completion
12/27/2011US8082983 Completion system having a sand control assembly, an inductive coupler, and a sensor proximate to the sand control assembly
12/27/2011US8082781 Apparatus for pressure testing a pressure foot
12/22/2011WO2011160046A2 Apparatus for use downhole including devices having heat carrier channels
12/22/2011WO2011159900A2 Method and apparatus for detecting fluid flow modulation telemetry signals transmitted from and instrument in a wellbore
12/22/2011WO2011159803A2 Look-ahead seismic while drilling
12/22/2011WO2011159509A2 Method for determining spatial distribution of fluid injected into subsurface rock formations
12/22/2011WO2011159508A2 Improved determination of conductive formation orientation by making wellbore sonde error correction
12/22/2011WO2011159502A2 Compartmentalized fiber optic distributed sensor
12/22/2011WO2011159283A1 Installation of lines in high temperature wellbore environments
12/22/2011WO2011159277A1 Annulus pressure setpoint correction using real time pressure while drilling measurements
12/22/2011WO2011158001A1 A water-based fluid loss additive containing an amphiphilic dispersant for use in a well
12/22/2011WO2011157996A2 Controlling well operations based on monitored parameters of cement health
12/22/2011WO2011157337A1 Extracting device having a connecting rod and method for controlling an extracting device having a connecting rod and at least one counterweight
12/22/2011WO2011156907A1 A method and apparatus for the preferential production of fluids from horizontal wells
12/22/2011WO2011132040A3 Utilisation of tracers in hydrocarbon wells
12/22/2011WO2011130159A3 Methods and systems for drilling
12/22/2011US20110309949 Electromagnetic Telemetry Assembly With Protected Antenna
12/22/2011US20110308859 System and Method for EM Ranging in Oil-Based Mud
12/22/2011US20110308797 Wireless downhole tool positioning system
12/22/2011US20110308796 Pipeline instrumentation and control system
12/22/2011US20110308795 Downhole signal coupling system
12/22/2011US20110308794 Real Time Determination of Casing Location and Distance with Tilted Antenna Measurement
12/22/2011US20110308793 High integrity hanger and seal for casing
12/22/2011US20110308791 Apparatus for Use Downhole Including Devices Having Heat Carrier Channels
12/22/2011US20110308790 In situ methanogenesis modeling and risk analysis
12/22/2011US20110308789 Surface to borehole electromagnetic surveying using metallic well casings as electrodes
12/22/2011US20110308788 Controlling well operations based on monitored parameters of cement health
12/22/2011CA2802796A1 Method for determining spatial distribution of fluid injected into subsurface rock formations
12/22/2011CA2802795A1 Improved determination of conductive formation orientation by making wellbore sonde error correction
12/22/2011CA2802684A1 Look-ahead seismic while drilling
12/22/2011CA2802403A1 Installation of lines in high temperature wellbore environments
12/22/2011CA2801695A1 Annulus pressure setpoint correction using real time pressure while drilling measurements
12/21/2011EP2397649A1 Method and system for determining relative mass fluxes
12/21/2011EP2396509A2 Apparatus and process for wellbore characterization
12/21/2011EP2396506A1 Method and apparatus for monitoring of esp
12/21/2011EP2396500A1 Downhole tool housing
12/21/2011EP2396498A1 Autochoke system
12/21/2011CN202083919U 测井车智能控制系统 Logging truck intelligent control system
12/21/2011CN202081889U 旋转阀式泥浆脉冲发生器 Rotary Valve mud pulser
12/21/2011CN202081888U 一种近钻头地质导向系统 Near geological drill guide system
12/21/2011CN202081887U 一种注蒸汽焖井的温度压力连续监测系统 An injection temperature and pressure steam soak continuous monitoring system
12/21/2011CN202081886U 无线随钻仪器用压力测量装置 Wireless MWD pressure measuring device
12/21/2011CN202081885U 一种防冻压力表 One kind of antifreeze pressure gauge
12/21/2011CN202081884U 石油测井深度测量装置 Oil well logging depth measurement device
12/21/2011CN202081883U 一种用于测量井深的深度编码器 A method for measuring the depth of the depth of the encoder
12/21/2011CN202081882U 一种无线随钻测斜仪校验台 A wireless MWD inclinometer calibration station
12/21/2011CN202081881U 一种无线随钻专用数据处理仪 A wireless MWD dedicated data processing apparatus
12/21/2011CN202081880U 无线随钻测斜仪短节内循环套拆卸工具 Wireless MWD inclinometer within a short section of the cycle sets demolition tools
12/21/2011CN202081879U 一种无线随钻测斜仪校验台 A wireless MWD inclinometer calibration station
12/21/2011CN202081878U 原油多相多井自动化控制系统的选井装置 Oil well equipment selected multiphase well automated control systems
12/21/2011CN202081877U 线路骨架 Line skeleton
12/21/2011CN202081876U 多臂井径仪器导向筒 Dobby caliper instrument guide tube
12/21/2011CN202081875U 一种新型的测井车中控舱 A new logging truck in the control cabin
12/21/2011CN202081839U 随钻声波测井隔声装置 LWD sonic acoustic device
12/21/2011CN1721655B 从井内的井下钻柱向地面传递信息的改进型旋转脉冲发生器 Downhole drill string from the well to pass information to the ground improved rotary pulse generator
12/21/2011CN102292518A 利用分布式感测装置进行井监测 Use of distributed sensing devices monitoring wells
12/21/2011CN102289638A 从水下组件获得数据 Data from underwater components
12/21/2011CN102287184A 微型泥浆漂浮式电子压力计及其工作方法、压力测量装置 Mini mud floating electronic manometer and its working methods, pressure measuring device
12/21/2011CN102287183A 旋挖钻机的测量钻孔倾斜度的装置和方法 Apparatus and method for the measurement of rotary drilling rig drilling inclination
12/21/2011CN102287182A 旋挖钻机的钻孔监测系统及其监测方法 Rotary drilling rig drilling monitoring systems and monitoring methods
12/21/2011CN102287181A 井口线缆防碰装置 Wellhead cable anti-collision device
12/21/2011CN102287180A 自定位式井下流量测调仪 Self-tune the positioning downhole flow measurement instrument
12/21/2011CN102287179A 可洗井存储式井下视像检测装置 Well washable storage downhole video detection device
12/21/2011CN102287178A 一种能快速查找异常油井的计量装置及使用方法 A metering device can quickly find and use abnormal wells
12/21/2011CN102287144A 井用管线导向器及其使用方法 Well with the guide lines and methods of use
12/21/2011CN101532839B 基于惯性技术的非开挖随钻测量系统 MWD system is based on the inertia of trenchless technology
12/21/2011CN101324189B 外压式温度补偿高温高压光纤光栅传感器 External pressure high temperature and high temperature-compensated FBG sensors
12/21/2011CN101263276B 用于井筒遥测系统的界面和方法 Interface and method for wellbore telemetry system
12/20/2011US8082105 Method and apparatus for measuring in-situ stress of rock using thermal crack
12/20/2011US8080498 Elastic hollow particles for annular pressure buildup mitigation
12/20/2011US8079415 Wellbore intervention tool
12/20/2011US8079414 Electromagnetic free point tool and methods of use
12/20/2011CA2534502C Drilling system and method
12/20/2011CA2534301C Multimode acoustic imaging in cased wells
12/20/2011CA2497714C Data logger plunger
12/17/2011CA2743696A1 Fiber optic cable for distributed acoustic sensing with increased acoustic sensitivity
12/16/2011CA2714692A1 Monitoring the water tables in multi-level ground water sampling systems
12/15/2011WO2011156798A2 Detecting and mitigating borehole diameter enlargement
12/15/2011WO2011156788A2 Reservoir mapping with fracture pulse signal
12/15/2011WO2011156469A2 Method for treating and sealing piezoelecric tuning forks
12/15/2011WO2011156219A2 Method of determining position of a valve
12/15/2011WO2011156132A2 Method of determining the dip of a formation
12/15/2011WO2011156071A1 Multi-window lateral well locator/reentry apparatus and method
12/15/2011WO2011154693A1 A stable organic-based fluid loss additive containing an organophilic clay-based suspending agent for use in a well
12/15/2011WO2011153636A1 Wellbore screen with tracer for fluid detection
12/15/2011WO2011153635A1 Wellbore fluid treatment tubular and method
12/15/2011WO2011133544A3 Apparatus and methods for estimating tool inclination using bit-based gamma ray sensors
12/15/2011WO2011115805A3 Packer deployed formation sensor
12/15/2011WO2011092660A3 Mechanical tube wave sources and methods of use for liquid filled boreholes
12/15/2011US20110304474 Compact Wireless Transceiver
12/15/2011US20110304218 Signal coupling system
12/15/2011US20110303461 Clutch for a Jack Element
12/15/2011US20110303408 Concentration of minor constituent of wellbore fluid