| 三维井壁中子-中子测井数值模拟 |
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| 引用本文： | 张金涛,钟振千.三维井壁中子-中子测井数值模拟[J].地球物理学报,1998,41(5):712-719. |
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| 作者姓名： | 张金涛 钟振千 |
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| 作者单位： | 1. 西安交通大学核能系,西安,710049;
2. 江汉石油测井研究所,潜江,433123 |
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| 基金项目： | 国家自然科学基金!49474234 |
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| 摘 要： | 应用多群P1近似和有限元方法对三维中子输运方程进行数值求解，并研究此方法在中子测井中的应用，实现了三维井壁中子-中子测井的数值正演研制了三维有限元中子测井软件包．应用它对江汉石油测井研究所的不同岩性的模型井进行了模拟计算，将计算结果同实验测量进行了比较，两者符合良好．用理论计算方法制作了各种环境校正图形曲线，计算精度令人满意．
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| 关 键 词： | 中子测井 数值模拟 输运方程 有限元方法 |
| 收稿时间： | 1997-02-17 |
NUMERICAL SIMULATION OF THREE-DIMENSIONAL NEUTRON-NEUTRON WELL-LOGGING |
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| ZHANG JIN-TAO, XIE ZHONG-SHENG, MA YI-CHEN.NUMERICAL SIMULATION OF THREE-DIMENSIONAL NEUTRON-NEUTRON WELL-LOGGING[J].Chinese Journal of Geophysics,1998,41(5):712-719. |
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| Authors: | ZHANG JIN-TAO XIE ZHONG-SHENG MA YI-CHEN |
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| Institution: | 1. Department of Nuclear Energy,Xi'an Jiaotong University,Xi'an 710049, China;
2. Jianghan Oil Well-logging research Institute, Qianjiang 433123, China |
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| Abstract: | In this paper the numerical simulation of fore-dimensional neutron-neutron well-logging is discussed. The netron transport equation is solved by finite element method with the multigroup P1 approximation and the direct numerical solution of neutron-neutron well-logging problem is acheived. Based on proposed model, a three-dimensional finite element code FEM3D is developed and appied to the numerical simulation of model wells with various lithologies in Jianghan Oil Well-logging Research Insihtute. The comparision of calculated results with measured results shows tha they are in qulte good agreement Using proposed numerical method,the environmental correction charts are established with satisfactory precision. |
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| Keywords: | Neutron well-logging Numerical simulation Transport equation Finite element method |
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