石油学报 ›› 1993, Vol. 14 ›› Issue (4): 49-59.DOI: 10.7623/syxb199304005

• 地质勘探 • 上一篇    下一篇

中子—中子测井的数值模拟

谢仲生1, 俎金花1, 尹邦华1, 杨永庆1, 方映东2, 张洪斌2, 何清源2, 潘洪进2   

  1. 1. 西安交通大学;
    2. 江汉石油管理局测井研究所
  • 收稿日期:1992-05-20 修回日期:1992-08-02 出版日期:1993-10-25 发布日期:2013-07-08
  • 作者简介:谢仲生,1934年1月出生.1958年西安交通大学研究生毕业.现任西安交通大学教授(博士导师).通讯处:陕西省西安市西安交通大学能源系.邮政编码:710049.
  • 基金资助:
    国家自然科学基金资助

NUMERICAL SIMULATION OF NEUTRON-NEUTRON WELL LOGGING

Xie Zhongsheng1, Zu Jinhua1, Yin Banghua1, Yang Yongqing1, Fang Yindong2, Zhang Hongbin2, He Qinyuan2, Pan Hongjin2   

  1. 1. Xi'an Jiaotong University;
    2. jianghan Research Institute of Well Logging
  • Received:1992-05-20 Revised:1992-08-02 Online:1993-10-25 Published:2013-07-08

摘要: 本文研究中子-中子测井的数值模拟方法.应用多群P1近似对中子输运方程数值求解.并研究其在中子测井中的应用.在国内首次实现了中子-中子测井问题的数值正演,建立了核测井用的核数据库,编制了少群群常数的计算程序FSMPlD和二维柱坐标(r.z)少群P1近似计算程序FDMP2D.对江汉测井研究所模型井群的石灰岩、砂岩和白云岩三种岩性地层进行了稳态探管居中的实验测量与模拟计算.计算结果同实验结果相一致.用理论方法制作了各种环境校正图板曲线,计算精度是令人满意的.

关键词: 中子测井, 孔隙度, 中子通量, 输运方程

Abstract: In this paper the numerical simulation of neutron-neutron well logging is discussed. The neutron transport equation is numerically solved by using the muhigroup P-approximation method, and its application to well logging is described. A Nuclear Data Library is established, the program FSMP1D for the calculation of few group constants and a(r,z)two-dimensional few group P-approxi-mation program FDMP2D is developed, and the positive numerical solutions of neutron well logging problems are implemented in China for the first time. Two-dimensional experimental measurements and numerical calculation are performed for a series of model wells of limestone, dolomite and sandstone in Jianghan Research Institute of Well Logging. The calculated and measured results are in good agreement. The chart for environmental correction is established theoretically and its precision is satisfactory.