| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
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| 01/07/2015 | CN204082059U 高压油气水井试井用仪器捕捉释放器 High pressure oil and gas wells, well testing instruments to capture releaser |
| 01/07/2015 | CN104271882A 钻井系统故障风险分析方法 Drilling system failure risk analysis method |
| 01/07/2015 | CN104271881A 利用发电涡轮机的泥浆脉冲遥测机构 Utilizing mud turbine power generating pulse telemetry mechanism |
| 01/07/2015 | CN104271880A 用于高温应用的具有可再充电能量存储器的电力系统 For high-temperature applications having a rechargeable energy storage power system |
| 01/07/2015 | CN104267684A 采煤机割煤速度与井下环境系统综合数据采集分析平台 Shearer cutting coal mine environment system speed and comprehensive data acquisition and analysis platform |
| 01/07/2015 | CN104265371A 一种煤矿工作面防治水的水害探测方法 One kind of coal mining face water damage prevention and control of water detection method |
| 01/07/2015 | CN104265364A 工作面采空区侧向煤体塑性区宽度监测确定方法 Goaf side coal monitoring method for determining the width of the plastic zone |
| 01/07/2015 | CN104265279A 断层条件下随钻测井曲线预测方法 Under fault conditions LWD curve prediction method |
| 01/07/2015 | CN104265278A 一种利用回音抵消技术消除随钻测井中的泵冲噪声的方法 A use of echo cancellation technology eliminates the pump LWD method impulse noise |
| 01/07/2015 | CN104265277A 一种利用管波与地层声波干涉原理提取地层声速的方法 An advantage of the acoustic tube waves interfere with the formation principle of the method to extract the formation speed of sound |
| 01/07/2015 | CN104265276A 基于电阻率示踪剂的流量测量方法及流量计 Resistivity measurement method based on flow and tracer flowmeters |
| 01/07/2015 | CN104265275A 一种煤矿井下随钻方位伽马测井仪器及其测量方法 One kind of coal mine drilling azimuth gamma logging instruments and measurement methods |
| 01/07/2015 | CN104265274A 一种快速准确实现凿岩钻机断面平行孔自动定位的方法 A fast and accurate method of drilling rigs achieve automatic positioning section parallel holes |
| 01/07/2015 | CN104265273A 水平井分段完井入流测试装置及测试方法 Horizontal well completions inflow test equipment and test methods |
| 01/07/2015 | CN104265272A 高精度煤泥水位测量装置 Slime-precision level measurement device |
| 01/07/2015 | CN104265271A 一种空间摆轴偏心位移的测量方法 An eccentric space pendulum shaft displacement measurement method |
| 01/07/2015 | CN104265270A 一种碳酸盐岩缝洞钻井轨迹设计及控制方法 A carbonate chimney hole drilling trajectory design and control methods |
| 01/07/2015 | CN104265269A 侧钻井曲率半径计算地层倾角的方法 The method of calculating the radius of curvature sidetrack strata dip |
| 01/07/2015 | CN104265268A 一种水平井注蒸汽热采可视化实验装置 A horizontal well steam injection thermal recovery visualization experimental device |
| 01/07/2015 | CN104265267A 适用于控压钻井的气液两相流量测量装置及测量方法 Gas-liquid two-phase flow is suitable for MPD measuring apparatus and measurement methods |
| 01/07/2015 | CN104265266A 水平井控水完井方式评价实验装置 Horizontal well completion method evaluation experiment water control device |
| 01/07/2015 | CN104265265A 一种单井原油油气产量直接计量方法 An oil and gas production method for direct measurement of single well |
| 01/07/2015 | CN104265264A 一种全适应地层岩心进筒异常显示机构 A fully adapt to the abnormal formation of core barrel into the display mechanism |
| 01/07/2015 | CN104265259A 产能跟踪与评价方法 Productivity tracking and evaluation methods |
| 01/07/2015 | CN104265256A 火烧油层电点火装置 ISC electric ignition device |
| 01/07/2015 | CN104265248A 水平井填砂试验井筒装置 Horizontal well bore sand filling test device |
| 01/07/2015 | CN104265220A 内管到位发声报警绳索取心钻具 Audible alarm in place the tube rope coring drill |
| 01/07/2015 | CN104265195A 用于大排量随钻陀螺系统的扶正机构 Righting mechanism for large displacement drilling gyro system |
| 01/07/2015 | CN104265188A 一种智能转换接头 An intelligent adapter |
| 01/07/2015 | CN104265184A 一种智能在线钻杆 An intelligent line drill |
| 01/07/2015 | CN103233722B 一种煤矿井下防爆型电磁波无线随钻测量系统及其使用方法 One kind of coal mine explosion-proof wireless electromagnetic MWD system and method of use |
| 01/07/2015 | CN102865062B 超滤法构建电测井探测器实体物理模拟装置 Ultrafiltration build electro-physical entities simulated logging detector device |
| 01/07/2015 | CN102808609B U型管式单井产量计量装置 U-tube well production metering devices |
| 01/07/2015 | CN102748007B 一种试井分析方法及装置 An analytical method and apparatus for well testing |
| 01/07/2015 | CN102628358B 一种测井方法 Logging and Methods |
| 01/06/2015 | US8930143 Resolution enhancement for subterranean well distributed optical measurements |
| 01/06/2015 | US8928323 Dipole locator using multiple measurement points |
| 01/06/2015 | US8925379 Downhole sensor systems and methods thereof |
| 01/06/2015 | US8925378 Modular apparatus and method for making measurements in boreholes |
| 01/06/2015 | US8925213 Wellbore caliper with maximum diameter seeking feature |
| 01/01/2015 | US20150003688 Slabbed Core Format for Borehole Image Data |
| 01/01/2015 | US20150003203 Systems and Methods for Downhole Cement Evaluation |
| 01/01/2015 | US20150003202 Wireless acoustic communications method and apparatus |
| 01/01/2015 | US20150003199 Methods and apparatus for determining stimulated volume of oil and gas reservoirs |
| 01/01/2015 | US20150002307 Telemetry Antenna Arrangement |
| 01/01/2015 | US20150002306 Borehole Array for Ranging and Crosswell Telemetry |
| 01/01/2015 | US20150002159 Downhole Seismic Sensor with Filler Fluid and Method of Using Same |
| 01/01/2015 | US20150000980 Formation dip geo-steering method |
| 01/01/2015 | US20150000979 System and method for detecting underground cross-bores |
| 01/01/2015 | US20150000977 Downhole Fluid Sensor with Conductive Shield and Method of Using Same |
| 01/01/2015 | US20150000933 Method and Packages to Protect Electronics Components in a Subterranean Environment |
| 01/01/2015 | US20150000904 Downhole Sensor Flap and Method of Using Same |
| 01/01/2015 | US20150000903 Pore-space measurement method apparatus and system |
| 01/01/2015 | US20150000891 Cementing Tool |
| 12/31/2014 | CN204068793U 一种石油测井用推靠装置数字化电流控制电路 A petroleum well logging device with push by digitizing current control circuit |
| 12/31/2014 | CN204064557U 一种井口穿越器检测装置 One kind wellhead through the detection device |
| 12/31/2014 | CN204060684U 一种绝缘短节的绝缘体组件 An insulated short section of the insulator assembly |
| 12/31/2014 | CN204060682U 一种抽油机油杆位移检测器 One kind of pumping oil rod displacement detector |
| 12/31/2014 | CN204060681U 抽油机油杆位移检测器 Pumping oil bar displacement detector |
| 12/31/2014 | CN204060680U 油气井一体化取源接入装置 Integrated oil and gas wells to take the source access device |
| 12/31/2014 | CN204060679U 一种投入式水位计下端盖 Put under the cover of a water level gauge |
| 12/31/2014 | CN204060678U 一种测井取心井下仪器保护装置 Logging and coring downhole equipment protection devices |
| 12/31/2014 | CN204060677U 一种耐磨的测井仪器装置 A wearable device logging equipment |
| 12/31/2014 | CN204060676U 一种安装压力表的装置 A pressure gauge device installation |
| 12/31/2014 | CN204060675U π生产井测井系统 π production well logging system |
| 12/31/2014 | CN204060674U 井下存储式电子拉力计 Underground storage electronic Rally |
| 12/31/2014 | CN204060673U 一种光电型过液传感器正压防飞溅装置 A photoelectric sensor type pressurized fluid through the device splash |
| 12/31/2014 | CN204060672U 立式流体计量撬 Vertical fluid metering skid |
| 12/31/2014 | CN204060671U 一种照相存储式井下视频成像测井仪 A photographic storage downhole video Imager |
| 12/31/2014 | CN204060642U 水平井填砂试验井筒装置 Horizontal well bore sand filling test device |
| 12/31/2014 | CN204060573U 一种连续油管作业综合集成设备 A continuous tubing operations Comprehensive Integrated Device |
| 12/31/2014 | CN204060515U 旋扩钻头 Rotary drill expansion |
| 12/31/2014 | CN204060513U 钻井对接装置 Drilling docking device |
| 12/31/2014 | CN1891976B 漂锤随机定向浮陀测斜仪 Hammer Tuo floating drift randomly oriented inclinometer |
| 12/31/2014 | CN104254988A 无线通信 Wireless communication |
| 12/31/2014 | CN104254723A 柔性管体和方法 The flexible pipe body and a method |
| 12/31/2014 | CN104254667A 井下超声换能器及其制造方法 Underground ultrasonic transducer and its manufacturing method |
| 12/31/2014 | CN104254662A 仪表化的岩心筒装置和相关方法 Instrumented core barrel apparatus and related method |
| 12/31/2014 | CN104251136A 一种煤层气井煤没度的确定方法 A method of determining the degree of no coal bed methane wells |
| 12/31/2014 | CN104251135A 大斜度井空间归位方法 High angle wells space homing method |
| 12/31/2014 | CN104251134A 一种新型天然气测试装置 A new gas test device |
| 12/31/2014 | CN104251126A 注水井井口测试防喷装置 Injection well wellhead blowout preventer test |
| 12/31/2014 | CN102852515B 机械式水平井套管错断偏心定位检测器 Mechanical horizontal well casing dislocation eccentric position detector |
| 12/31/2014 | CN102748013B 一种低频偶极子发射换能器 Low-frequency transmitter dipole transducer |
| 12/31/2014 | CN102317570B 监测电动潜油泵的方法和设备 Monitoring electric submersible pump method and apparatus |
| 12/30/2014 | US8922215 Measurement of formation parameters using rotating directional EM antenna |
| 12/30/2014 | US8921768 Spectroscopic nanosensor logging systems and methods |
| 12/30/2014 | US8919457 Apparatus and method for determining axial forces on a drill string during underground drilling |
| 12/30/2014 | US8919445 Method and system for flow assurance management in subsea single production flowline |
| 12/30/2014 | US8919439 Single trip multi-zone completion systems and methods |
| 12/30/2014 | US8919438 Detection and quantification of isolation defects in cement |
| 12/28/2014 | CA2855198A1 Downhole fluid sensor with conductive shield and method of using same |
| 12/25/2014 | US20140377873 Fossil recognition apparatus, systems, and methods |
| 12/25/2014 | US20140377871 Method and system for wireless in-situ sampling of a reservoir fluid |
| 12/25/2014 | US20140375468 Equipment and Methods for Downhole Surveying and Data Acquisition for a Drilling Operation |
| 12/25/2014 | US20140375467 Wireless Transmission of Well Formation Information |
| 12/25/2014 | US20140374159 Positioning techniques in multi-well environments |
| 12/25/2014 | US20140374092 Method of signaling passage of objects using tattle-tale apparatus |
| 12/25/2014 | US20140374090 Apparatus and Method for Opening and Closing an Automatic Valve Installed in the Discharge Line of an Oil Well |
| 12/25/2014 | US20140374089 Automated diversion valve control for pump down operations |