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公开(公告)号:US20240068844A1
公开(公告)日:2024-02-29
申请号:US17893301
申请日:2022-08-23
CPC分类号: G01D5/2291 , G01B7/003
摘要: A magnetic sensing tool (“MST”) uses differentials in induced voltage to detect the approximate location of a ferric target tool within surface pressure control equipment associated with a wellhead. The MST comprises a transmitter coil and two receiver coils configured such that a voltage generated in the transmitter coil induces a baseline voltage, and a baseline voltage differential, in the receiver coils when no target tool is present. A target tool passing axially through the MST will disrupt the magnetic fields inducing the voltages, such that variations in the voltage differential can be used to detect the approximate location of the target tool. The MST can be deployed alone or in series depending on the requirements of detection of the target tool.
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公开(公告)号:US20130270431A1
公开(公告)日:2013-10-17
申请号:US13817115
申请日:2011-05-24
IPC分类号: G01V5/12
CPC分类号: G01V5/12
摘要: A full bore spectral gas holdup tool that measures gas holdup that is corrected for effects of the flowstream lamination and the salinity of the liquid in the a flowstream. The basic methodology utilizes spectral data from two gamma ray detectors at different spacings from a nuclear source that emits gamma radiation. 57Co is the preferred source and the gamma ray detectors are scintillation spectrometers. In addition to a full bore gas holdup measurement, the spectral gas holdup tool also provides indications of the degree of flowstream lamination and the salinity of the liquid in the flowstream. An iterative data processing method optimizes the accuracy of the measured flowstream parameters.
摘要翻译: 一种全孔光谱气体滞留工具,用于测量气流层压效应校正的气体滞留量,以及流动流中液体的盐度。 基本方法利用来自发射γ辐射的核源的不同间隔的两个伽马射线检测器的光谱数据。 57Co是优选的来源,γ射线检测器是闪烁光谱仪。 除了全口径气体保持测量之外,光谱气体保持工具还提供流动流层流程度和流动流体中液体的盐度的指示。 迭代数据处理方法优化了测量流量参数的准确性。
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公开(公告)号:US09274246B2
公开(公告)日:2016-03-01
申请号:US13817115
申请日:2011-05-24
IPC分类号: G01V5/12
CPC分类号: G01V5/12
摘要: A full bore spectral gas holdup tool that measures gas holdup that is corrected for effects of the flowstream lamination and the salinity of the liquid in the flowstream. The basic methodology utilizes spectral data from two gamma ray detectors at different spacings from a nuclear source that emits gamma radiation. 57Co is the preferred source and the gamma ray detectors are scintillation spectrometers. In addition to a full bore gas holdup measurement, the spectral gas holdup tool also provides indications of the degree of flowstream lamination and the salinity of the liquid in the flowstream. An iterative data processing method optimizes the accuracy of the measured flowstream parameters.
摘要翻译: 一种全孔光谱气体滞留工具,用于测量气流层压效应校正的气体滞留量,以及流体流中液体的盐度。 基本方法利用来自发射γ辐射的核源的不同间隔的两个伽马射线检测器的光谱数据。 57Co是优选的来源,γ射线检测器是闪烁光谱仪。 除了全口径气体保持测量之外,光谱气体保持工具还提供流动流层流程度和流动流体中液体的盐度的指示。 迭代数据处理方法优化了测量流量参数的准确性。
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