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公开(公告)号：US20220365241A1
公开(公告)日：2022-11-17
申请号：US17754627
申请日：2020-10-08
发明人： Yi-Qiao Song , Yiqiao Tang , Mehdi Hizem , Lukasz Zielinski , Michel Claverie , ZhanGuo Shi
摘要： Methods and systems are provided for optimizing well-logging using an optimized wait time determined by analysis nuclear magnetic resonance data to achieve faster and better quality borehole evaluation. The method comprises performing a nuclear magnetic resonance pre-log testing; identifying a wait time for a portion of a signal from the pre-log testing with a long T1 and T2, value at each depth of the pre-log testing, wherein T1 is defined as a longitudinal relaxation time and T2 is a transverse relaxation time ascertained from the nuclear magnetic resonance prelog testing; and constructing a logging program with a logging program wait time being consistent with the wait time identified.
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公开(公告)号：US09645130B2
公开(公告)日：2017-05-09
申请号：US13968145
申请日：2013-08-15
发明人： Cheng-Gang Xie , Mehdi Hizem , Rolf Rustad
CPC分类号： G01N33/28 , G01N22/00 , G01N33/2823 , G01R27/02 , G01R27/08 , G01R27/14 , G01R27/2605
摘要： Properties of a multiphase mixture flow are measured in a blind-tee. The measured properties include the permittivity and/or the conductivity of the multiphase mixture flowing through a conduit. The permittivity and/or conductivity are measured at liquid-rich region(s) in a blind-tee section of the conduit and are used to determine properties of a liquid phase of the multiphase fluid flow, including one of the water conductivity, water in liquid ratio and water volume fraction. One or more electromagnetic sensors may be used in the blind-tee to measure the permittivity and/or conductivity. The sensors may be in contact with the multiphase flow or be disposed behind a dielectric window.
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