测井技术2025，Vol.49Issue(2)：189-197,9.DOI:10.16489/j.issn.1004-1338.2025.02.006
基于FLUKA软件的井孔射线与介质作用模拟对比研究
Simulation and Comparative Study of Interaction Between Ray and Medium in Borehole Based on FLUKA Software
摘要
Abstract
In nuclear logging,Monte Carlo simulation method is widely employed across various stages from instrument development and design to data interpretation.While Monte Carlo N-Particle Transport Code(MCNP)has been the primary tool for research and problem-solving in this domain,its usage has long been constrained by licensing restrictions,posing challenges for researchers.Leveraging FLUktuierende KAskade(FLUKA)'s open-access policy,this study establishes nuclear logging benchmark simulations to evaluate FLUKA's viability as an alternative to MCNP.Representative benchmark models encompassing gamma-ray transport,neutron transport,and gamma-neutron coupled transport processes were developed in both FLUKA and MCNP.Key logging data,including gamma energy spectra,formation density,and porosity,were obtained to assess FLUKA's performance in low-energy radiation transport simulations.Results demonstrate that for low-energy gamma transport,the maximum relative error between FLUKA and MCNP in formation-scattered gamma-ray spectra is 5.37%,with density response errors below 3.75%.For low-energy neutron transport,porosity responses show agreement within 1%,while relative errors in neutron-induced gamma-ray spectra generally remain under 5%.This comparative analysis confirms FLUKA's capability to replace MCNP for nuclear logging applications.关键词
核测井/蒙特卡罗/数值模拟/FLUKA/MCNP/地球物理/响应特征Key words
nuclear well logging/Monte Carlo/numerical simulation/FLUktuierende KAskade(FLUKA)/Monte Carlo N-Particle Transport Code(MCNP)/geophysics/response characteristics引用本文复制引用
刘军涛,李雯昕,MARINA R.ABDELNOUR,田恒,王一巍,高源,刘志毅..基于FLUKA软件的井孔射线与介质作用模拟对比研究[J].测井技术,2025,49(2):189-197,9.基金项目
国家自然科学基金项目"基于新型井眼探测器系统的地下考古遗迹"(11975115) （11975115）
甘肃省科技计划项目"多场景天然射线缪子成像技术研发与应用"(21ZDKA0019) （21ZDKA0019）
兰州大学中央高校基本科研业务费专项课题"用于铀矿勘探的缪子成像系统研发"(lzujbky-2023-stlt01) （lzujbky-2023-stlt01）
