摘要
瞬发裂变中子铀矿测井是一种快速、可实现直接测铀并可现场定量地层岩石中铀含量的核测井新技术。为消除瞬发裂变中子铀矿测井受地层环境因素的影响,利用MCNP5对瞬发裂变中子铀矿测井的井径、井液变化进行了深入分析,通过分析干孔、含水孔在不同孔径下的超热中子与热中子数的变化关系,使用线性拟合给出了井径修正函数,并取得了满意的实验结果。
Prompt fission neutron logging is a new nuclear logging technique with high efficiency to measure uranium directly and on-site quantification of uranium in rock formations. In order to eliminate the influence of formation environmental factors on the theoretical model of instantaneous neutron uranium mine logging, this paper uses Monte Carlo numerical calculation program MCNP5 to deeply analyze the well diameter and well fluid changes of the pulsed neutron uranium ore logging. By analyzing the relationship between the number of thermal neutrons and thermal neutrons in dry pores and water holes at different pore sizes, the correction function is given using linear fitting and the experimental results are consistent with the analysis.
作者
陈锐
王海涛
周书民
张斌
CHEN Rui;WANG Hai-tao;ZHOU Shu-min;ZHANG Bin(Engineering Research Center for Nuclear Technology Application, Ministry of Education,East China University of Technology,Nanchang 330013,China;Jiangxi Engineering Research Center of Process and Equipment for New Energy, East China University of Technology, Nanchang 330013, China)
出处
《核电子学与探测技术》
CAS
北大核心
2018年第6期823-827,共5页
Nuclear Electronics & Detection Technology
基金
国家自然科学基金项目(11565002)
江西省教育厅科技研究项目(GJJ150558)
核技术应用教育部工程研究中心开放基金项目(HJSJYB2017-2)
江西省新能源工艺与装备工程技术研究中心开放基金(JXNE2017-04)资助
关键词
铀矿
中子测井
数值模拟
环境修正
uranium deposit
neutron logging
numerical simulation
environmental correction
