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    Air kerma conventional true value determining method
    1.
    发明授权
    Air kerma conventional true value determining method 有权

    公开(公告)号：US10031240B2

    公开(公告)日：2018-07-24

    申请号：US15529554

    申请日：2015-06-01

    申请人： INSTITUTE OF NUCLEAR PHYSICS AND CHEMISTRY, CHINA ACADEMY OF ENGINEERING PHYSICS

    发明人： Benjiang Mao ,  Yixin Liu ,  Yang Xu ,  Meng He ,  Renhong Zhuo ,  Dezhi Wen ,  Dajie Ding ,  Jing Cheng ,  Hui Zheng

    IPC分类号： G01T1/00 ,  G01T1/02 ,  G01N23/20

    摘要： An air kerma conventional true value determining method is provided, which addresses the problem of on-site and in-situ verification or calibration of radiation protection with existing standard reference radiation, which is large in spatial volume and unable or difficult to be moved. The method includes establishing a minitype reference radiation, selecting a proper radiation source and source intensity for providing incident rays for a shielding box, selecting a plurality of gamma ray dosimeters as samples for training a prediction model to obtain the prediction model of the air kerma conventional true value of a point of test, putting a probe of a dosimeter being verified at the point of test, recording scattering gamma spectrum measured by a gamma spectrometer, with the spectrum applied as input to the prediction model to obtain the air kerma conventional true value. The results are accurate and the reference radiation is small in size.

    AIR KERMA CONVENTIONAL TRUE VALUE MEASURING METHOD
    2.
    发明申请
    AIR KERMA CONVENTIONAL TRUE VALUE MEASURING METHOD 审中-公开

    公开(公告)号：US20170322315A1

    公开(公告)日：2017-11-09

    申请号：US15529554

    申请日：2015-06-01

    申请人： INSTITUTE OF NUCLEAR PHYSICS AND CHEMISTRY, CHINA ACADEMY OF ENGINEERING PHYSICS

    发明人： Benjiang MAO ,  Yixin LIU ,  Yang XU ,  Meng HE ,  Renhong ZHUO ,  Dezhi WEN ,  Dajie DING ,  Jing CHENG ,  Hui ZHENG

    IPC分类号： G01T1/02 ,  G01N23/20

    CPC分类号： G01T1/02 ,  G01N23/20 ,  G01N2223/05 ,  G01N2223/638 ,  G01T7/005

    摘要： A measurement method for an air kerma conventional true value comprises: building a small-scale reference radiation field, then selecting a proper radiation source (4) and a source intensity for providing incident rays for a shielding box (1), subsequently selecting a plurality of gamma ray dose measurement instruments as experiment samples for building a prediction model to obtain a prediction model of the air kerma conventional true value of a check point, fmally placing a probe of an instrument to be detected on the check point (6), recording a scattering gamma spectrum detected by a gamma-ray spectrometer (9), and importing the prediction model to obtain the air kerma conventional true value. The method relates to the field of radiation protection detection or calibration, and has the beneficial effects that the result is accurate, the reference radiation field used is small in size, and the method is applied to measurement of the air kerma conventional true value. The method solves the problem that site and in-situ detection or calibration is unlikely to be implemented as the existing standard reference radiation field is too large in space and volume to move or is difficult to move.

    A LOGGING METHOD FOR LOCATING WATERED ZONE IN HORIZONTAL WELL WITH HIGH WATERCUT PROBLEM BY ISOTOPE LABELING
    3.
    发明申请
    A LOGGING METHOD FOR LOCATING WATERED ZONE IN HORIZONTAL WELL WITH HIGH WATERCUT PROBLEM BY ISOTOPE LABELING 审中-公开
    用于通过同位素标签在高水位问题的水平井中定位水域的记录方法

    公开(公告)号：US20160312605A1

    公开(公告)日：2016-10-27

    申请号：US15104194

    申请日：2014-11-24

    申请人： INSTITUTE OF NUCLEAR PHYSICS AND CHEMISTRY, CHINA ACADEMY OF ENGINEERING PHYSICS

    发明人： Wen HUANG ,  Shuming PENG ,  Xuejie WANG ,  Dazhi QIAN ,  Shilei ZHU ,  Bin TANG ,  Rundong LI ,  Zhihua ZHANG ,  Jun XIE ,  Songbao ZHANG ,  Jian YAO ,  Yang ZHANG ,  Fang HE ,  Yi CHEN ,  Xin LUO ,  Yujie ZHU ,  Hanming LIAO ,  Tianlu NI ,  Xijun YANG ,  Yong YANG ,  Shubin GUO

    IPC分类号： E21B47/10 ,  B01D9/00 ,  E21B41/00 ,  E21B33/12 ,  E21B43/12

    CPC分类号： E21B47/1015 ,  B01D9/0004 ,  B01D9/0018 ,  E21B33/12 ,  E21B41/00 ,  E21B43/121 ,  E21B47/044

    摘要： An logging method for locating a watered zone in a horizontal well with high watercut problem by isotope labeling is disclosed, which successively includes the following steps: a. solidifying an isotope used in an isotope releasing device into a water-soluble carrier; b. connecting the isotope releasing device with a tubing and setting them to a horizontal segment of the well; c. dissolving the water-soluble carriers in the water at the bottom of the well to release the isotope, wherein the releasing rate is proportional to the flow rate of the water; d. starting a lift-up pump and beginning a production logging; and e. continuously performing y-ray energy-spectrum analysis on produced water on the ground, so as to locate the watered zone of the horizontal well with high watercut problem by the detected species and characteristic content of the isotope. Since the isotope releasing device is conveyed through the tubing, various restrictions of borehole trajectories and wellbore conditions can be overcome, the risk in the process of operation can be reduced; and the logging method of the invention can be accomplished during pump checking operation, and does not need the coordination of a packer, bridge plug, the bottom of the well switch or other tools, thereby save the platform occupying time, and also save the logging cost.

    摘要翻译： 公开了一种用于通过同位素标记定位具有高水切割问题的水平井中的浇水区域的测井方法，其依次包括以下步骤：a。 将同位素释放装置中使用的同位素固化成水溶性载体; b。 将同位素释放装置与管道连接并将其设置到井的水平段; C。 将水溶性载体溶解在井底部的水中以释放同位素，其中释放速率与水的流速成比例; d。 启动升降泵并开始生产测井; 和e。 对地面上产生的水进行y射线能谱分析，通过检测到的同位素种类和特征含量，确定水平井水位较高的水切割问题。 由于同位素释放装置通过管道输送，可以克服井眼轨迹和井眼条件的各种限制，可以降低运行过程中的风险; 本发明的记录方法可以在泵检查操作期间完成，不需要打包机，桥塞，井口开关或其他工具的底部协调，从而节省了平台占用时间，并且还节省了测井 成本。