CAJ | 학술논문

为分析含孔隙结构地层的γ射线响应特性，编写了一种Monte Carlo方法模拟γ射线散射的程序，使用该程序除了能建立一般的几何模型外，还能在数字岩心的基础上进行模拟。利用该程序对γ光子在NaI晶体中的脉冲沉积谱做了模拟，并与MCNP4C相应的计算结果进行了对比，对比显示，该程序能提供正确、有效的模拟手段。在正确性验证的基础上，以数字岩心构建地层，对不同孔隙度的砂岩做了密度测井的能谱模拟，得到了一些有益的结果。
위분석함공극결구지층적γ사선향응특성，편사료일충Monte Carlo방법모의γ사선산사적정서，사용해정서제료능건립일반적궤하모형외，환능재수자암심적기출상진행모의。이용해정서대γ광자재NaI정체중적맥충침적보주료모의，병여MCNP4C상응적계산결과진행료대비，대비현시，해정서능제공정학、유효적모의수단。재정학성험증적기출상，이수자암심구건지층，대불동공극도적사암주료밀도측정적능보모의，득도료일사유익적결과。
In order to simulate the γradiation response properties in stratum porosity structure , the software that we can build general geometry model or the digital core model is made by using the Monte Carlo method .Theγspectrum of photon pulse deposition in NaI crystal is simulated by the software and MCNP 4C respectively, and the results demonstrate that the program can be regarded as a correct and effective simulation .And then, we construct digital core model , as well as the energy spectrum of γradiation in sandstone with different porosity is simulated .This will be beneficial for the foundation explanation of density logging .