| 中子测井源距选择数值模拟研究 |
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| 引用本文： | 胡忠,岳爱忠. 中子测井源距选择数值模拟研究[J]. 石油天然气学报, 2003, 25(Z1): 30-31 |
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| 作者姓名： | 胡忠 岳爱忠 |
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| 作者单位： | 1. 江汉石油学院地球物理系,湖北,荆州,434023
2. 江汉测井研究所,湖北,潜江,433123 |
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| 摘 要： | 源距是中子测井仪器的主要参数,它在很大程度上决定测井仪的孔隙度精度、灵敏度、分辨率以及环境因素影响状况.采用数值模拟方法,计算了三维偏心中子测井在不同源距时热中子和超热中子探测器响应,得到孔隙度-比值响应曲线,分析了不同长、短源距组合时孔隙度灵敏度、分辨率以及岩性影响状况.以上数值结果与分析为中子测井源距选择提供了理论依据.
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| 关 键 词： | 中子测井 数值模拟 孔隙度 源距 |
| 文章编号： | 1000-9752(2003)增刊(上)-0030-02 |
| 修稿时间： | 2002-08-11 |
Numerical Simulation of Neutron Logging Source Spacing Selection |
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| HU Zhong. Numerical Simulation of Neutron Logging Source Spacing Selection[J]. Journal of Oil and Gas Technology, 2003, 25(Z1): 30-31 |
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| Authors: | HU Zhong |
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| Abstract: | Source spacing is one of the key parameters of neutron logging tool, by which permeability precision, sensitivity, resolution of the logging tool are determined to a large extent. Numerical simulation method is used to calculate the thermal neutron and epithermal neutron detector responses of different source spacing in 3 dimensional eccentric neutron logging . Porosity-ratio response curves are obtained. Porosity, sensitivity, resolution and lithologic influence of different source spacing combinations are analyzed. The result and method denoted provide basis for selecting neutron logging source spacing. |
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| Keywords: | neutron logging numerical simulation porosity source spacing |
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