| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
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| 01/28/2015 | CN204126629U π成像测井系统 π imaging logging system |
| 01/28/2015 | CN204126628U 一种随钻测量地面系统 One kind MWD ground system |
| 01/28/2015 | CN204126601U 一种井场安装结构 A well-field installation structure |
| 01/28/2015 | CN204126592U 石油套管气密封检测封隔器 Gas seal oil casing packer detection |
| 01/28/2015 | CN204126581U 内管到位发声报警绳索取心钻具 Audible alarm in place the tube rope coring drill |
| 01/28/2015 | CN104321669A 低角度井中的各向异性处理 Anisotropy processing low-angle wells |
| 01/28/2015 | CN104321500A 高温超级电容器 High temperature supercapacitors |
| 01/28/2015 | CN104314557A 用于井下单芯长电缆通讯的数据传输方法 Data transmission method for single long underground cable for communication |
| 01/28/2015 | CN104314556A 一种矿用数字压力计采集与分析系统 Digital pressure gauge Ore Acquisition and Analysis System |
| 01/28/2015 | CN104314555A 一种煤矿钻孔窥视仪的窥视方法 One kind of instrument peep peep mine drilling method |
| 01/28/2015 | CN104314554A 一种钻孔探测机器人 For a drilled exploration robot |
| 01/28/2015 | CN104314553A 紧凑型海上平台的稠油计量装置 Heavy metering device compact offshore platform |
| 01/28/2015 | CN104314552A 压裂监测 Fracture Monitoring |
| 01/28/2015 | CN104314551A 自动选井多相流量计量装置 Automatic selection of multiphase flow metering device Wells |
| 01/28/2015 | CN104314550A 双计量仓式油水两相计量装置 Dual water two-phase metering bin type metering device |
| 01/28/2015 | CN104314537A 内磁流量计式无线充电及无线传输式分层配注器及该配注器的使用方法 Within the magnetic flowmeter wireless charging and wireless transmission type layered with injector and injection with the use of the method |
| 01/28/2015 | CN104314536A 内磁流量计式电缆传输分层配注器及该配注器的使用方法 Within the magnetic flowmeter cable transmission stratified injection allocation and use of the injection allocation method |
| 01/28/2015 | CN104314535A 内磁流量计对接充电无线传输分层配注器及该配注器的使用方法 Within the magnetic flowmeter docking stratified charge wireless transmission that is equipped with injector and injector to use |
| 01/28/2015 | CN104314534A 一种压差流量计式智能可调投捞注配器 One kind of differential pressure flow meter smart adjustable dispenser cast fishing Notes |
| 01/28/2015 | CN104314529A 用于油气井完井的内定向自旋转撞击起爆装置 For oil and gas well completions in the directional self-detonating device rotating strike |
| 01/28/2015 | CN104314509A 一种深钻孔测压封堵方法及装置 A dark drilling method and apparatus for sealing manometry |
| 01/28/2015 | CN104314470A 垂直钻井工具 Vertical Drilling Tools |
| 01/28/2015 | CN102606133B 放射性流体密度测井仪刻度块制作方法 Radioactive fluid density tool scale block production methods |
| 01/27/2015 | US8942529 Fibre optic tape assembly |
| 01/27/2015 | US8942064 Sending a seismic trace to surface after a vertical seismic profiling while drilling measurement |
| 01/27/2015 | US8941384 Reliable wired-pipe data transmission system |
| 01/27/2015 | US8941383 System and method for measuring borehole geometry while drilling |
| 01/27/2015 | US8939237 Underground drilling apparatus |
| 01/27/2015 | US8939233 Methods and systems for drilling |
| 01/27/2015 | US8939219 System and method for monitoring and controlling snubbing slips |
| 01/27/2015 | US8939205 Method and apparatus for generating seismic pulses to map subterranean fractures |
| 01/27/2015 | US8939204 Method and apparatus for communicating with a device located in a borehole |
| 01/27/2015 | US8939039 Load cell for a downhole load measuring tool |
| 01/27/2015 | US8939021 Fluid expansion in mud gas logging |
| 01/27/2015 | CA2810403C Downhole sensor assembly and method of using same |
| 01/27/2015 | CA2529539C Method to measure and locate a fluid communication pathway in a material behind a casing |
| 01/22/2015 | WO2015009923A2 Forward deployed sensing array for an electric submersible pump |
| 01/22/2015 | WO2015009880A2 Inflow control valve and device producing distinct acoustic signal |
| 01/22/2015 | WO2015009522A1 Modulated opto-acoustic converter |
| 01/22/2015 | WO2015009424A1 Method and system for monitoring and managing fiber cable slack in a coiled tubing |
| 01/22/2015 | WO2015009393A1 Apparatus and method of distributed pressure sensing |
| 01/22/2015 | WO2015009373A1 Method for locating casing downhole using offset xy magnetometers |
| 01/22/2015 | WO2015009372A1 Electromagnetic telemetry apparatus and methods for use in wellbores |
| 01/22/2015 | WO2015009307A1 Detecting boundary locations of multiple subsurface layers |
| 01/22/2015 | WO2015009272A1 Communicating acoustically |
| 01/22/2015 | US20150025864 Method and system of selecting hydrocarbon wells for workover |
| 01/22/2015 | US20150025807 Methods for Determining Dielectric Permittivity Spectrum of Underground Rock Formations |
| 01/22/2015 | US20150025806 Mud pulse telemetry |
| 01/22/2015 | US20150023137 System and method for using controlled vibrations for borehole communications |
| 01/22/2015 | US20150022371 Data communications system |
| 01/22/2015 | US20150021094 Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations |
| 01/22/2015 | US20150021093 Downhole measurement assembly, tool and method |
| 01/22/2015 | US20150021020 Zonal Compositional Production Rates in Commingled Gas Wells |
| 01/22/2015 | US20150021016 Device and method for measuring torque and rotation |
| 01/22/2015 | US20150021015 Inflow control valve and device producing distinct acoustic signal |
| 01/22/2015 | US20150021014 Forward deployed sensing array for an electric submersible pump |
| 01/22/2015 | US20150021009 Modulated Opto-Acoustic Converter |
| 01/22/2015 | US20150020598 Apparatus and Method of Distributed Pressure Sensing |
| 01/21/2015 | EP2825728A2 Outward venting of inflow tracer in production wells |
| 01/21/2015 | EP2825718A2 Tracer based flow measurement |
| 01/21/2015 | EP2825714A1 Method and apparatus for acoustic noise isolation in a subterranean well |
| 01/21/2015 | CN204119258U 网络化测井井下仪器主从节点 Downhole logging network master and slave nodes |
| 01/21/2015 | CN204117349U 一种进行井下设备地面控制的系统 An underground system ground control equipment |
| 01/21/2015 | CN204116923U 井场安防及生产数据传输装置 Wellsite security and production data transmission device |
| 01/21/2015 | CN204113280U 一种整流逆变探管 One kind of rectifier inverter probe |
| 01/21/2015 | CN204113279U 注采气管柱验漏及堵漏管柱结构 Gas injection test leakage and plugging string string structure |
| 01/21/2015 | CN204113278U 一种储气库用测试管柱 One kind of gas storage with a test string |
| 01/21/2015 | CN204113277U Hzz-2钻孔煤层原位静态瓦斯压力测定仪 Hzz-2 drilling coal seam gas pressure in situ static analyzer |
| 01/21/2015 | CN204113276U 一种高精度煤泥水位测量装置 A high-precision measuring device slime water |
| 01/21/2015 | CN204113275U 集流伞保护器 Collector umbrella protection |
| 01/21/2015 | CN204113274U 测井仪器扶正堵头 Logging equipment righting plug |
| 01/21/2015 | CN204113273U 一种便携式煤层气井工况诊断系统 A portable diagnostic system conditions CBM wells |
| 01/21/2015 | CN204113272U 深水钻井井筒气侵模拟可视化实验装置 Deepwater drilling wellbore gas cut simulation visualization experimental device |
| 01/21/2015 | CN204113271U 便携式测井仪器 Portable logging equipment |
| 01/21/2015 | CN204113270U 一种液体自动在线计量装置 A liquid metering device automatic online |
| 01/21/2015 | CN204113269U 一种撬装式稠油井液量计量装置 A mounted heavy oil fluid metering device to pry |
| 01/21/2015 | CN204113268U 随动支撑式滑轨控制装置 Servo-supported slide control device |
| 01/21/2015 | CN204113267U 一种注水井可验封测调仪 An injection wells can be adjusted beta test instrument |
| 01/21/2015 | CN204113266U 测调仪自收胀机构 Since the closing tune instrument measuring inflation agencies |
| 01/21/2015 | CN204113265U 一种油田油水井井下管柱测长装置 One kind of oil wells oilfield downhole string length measuring device |
| 01/21/2015 | CN204113260U 一种压裂井口装置 One kind of fracturing wellhead |
| 01/21/2015 | CN204113194U 一种集测压与抽采功能于一体的瓦斯钻孔封孔装置 A set of manometry and drainage functions in one device sealing gas drilling |
| 01/21/2015 | CN104302871A 用于监测井下工具的方法和设备 Method for monitoring downhole tools and equipment |
| 01/21/2015 | CN104295290A 压裂监测 Fracture Monitoring |
| 01/21/2015 | CN104295289A 一种走向长钻孔瓦斯抽采半径测定方法 Determination of a trend long borehole gas drainage radius |
| 01/21/2015 | CN104295288A 石油钻井井深测量系统及方法 Oil drilling depth measurement system and method |
| 01/21/2015 | CN104295287A 一种深井高温井陀螺二次坐键定向工艺 One kind of high-temperature wells deep directional gyro key secondary sit process |
| 01/21/2015 | CN104295286A 一种有杆式抽油机运行工况智能识别方法 A kind of rod pumping unit operating conditions Intelligent Recognition |
| 01/21/2015 | CN104295285A 水泥环第二界面胶结状况的判定方法及系统 Method and system for determining the status of the second interface cementation cement |
| 01/21/2015 | CN104295284A 压控减震水力推送装置 Voltage-controlled hydraulic damping device push |
| 01/21/2015 | CN104295283A 油气分离计量测试仪 Oil and gas separation measurement tester |
| 01/21/2015 | CN104295266A 模拟固井工程环空顶替效率监测方法 Engineering simulation cementing the annulus displacement efficiency monitoring methods |
| 01/21/2015 | CN104295233A 钻探系统及用于监测和显示用于钻探系统的钻探操作的钻探参数的方法 The method of drilling parameters for drilling system for drilling operations drilling system and for monitoring and display |
| 01/21/2015 | CN102900427B 双示踪薄层识别器 Dual tracer thin recognizer |
| 01/21/2015 | CN102865063B 油气积算仪 Oil Totalizer |
| 01/21/2015 | CN102828743B 示踪量子点注水剖面测井方法 Quantum dots tracer injection profile logging methods |
| 01/21/2015 | CN102661145B 一种不起钻可更换式电磁波无线随钻测量系统 One kind of electromagnetic waves can not afford to drill replaceable wireless MWD system |
| 01/21/2015 | CN102587897B 非浸入式井下光纤流量监测系统 Non-intrusive flow monitoring system of underground fiber optic |
| 01/21/2015 | CN102536216B 电磁波无线随钻测量信号发射与接收的地面模拟测试方法 Electromagnetic MWD wireless signal transmission and reception of terrestrial analog test methods |
| 01/21/2015 | CN102493801B 一种全井眼多探针油气流量测量装置 A fully multi-borehole probe and gas flow measuring device |