| 岩石波速和孔隙度、泥质含量之间的关系研究 |
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| 引用本文： | 史诃,杨东全. 岩石波速和孔隙度、泥质含量之间的关系研究[J]. 北京大学学报(自然科学版), 2001, 37(3): 379-384 |
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| 作者姓名： | 史诃 杨东全 |
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| 作者单位： | 1. 北京大学地质学系,
2. 清华大学力学系, |
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| 基金项目： | 国家自然科学基金;49774239; |
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| 摘 要： | 在复杂的正旋回砂砾岩储层中，从两口井系统地采集了不同岩性的典型样品，在不同的有效压力及两种状态（气饱和水饱和）下测试了岩石的纵、横波速度。利用咽归分析得出纵、横波速度与孔隙度、泥质含量线性相关。回归公式应用于声波测井资料的结果显示，对于特定的地区，岩石波速和孔隙度、泥质含量关系的具体表达式应从井资料经统计分析得到，没有一个统一的公式适用任何地区。
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| 关 键 词： | 孔隙度 泥质含量 回归分析 岩石波速 声波测井 弹性波 |
The Regression Analysis Study on Velocity and Porisity,and Clay Content of Rocks |
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| SHI Ge,YANG Dongquan. The Regression Analysis Study on Velocity and Porisity,and Clay Content of Rocks[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2001, 37(3): 379-384 |
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| Authors: | SHI Ge YANG Dongquan |
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| Abstract: | The typical samples with different lithological characters are collected from two wells of representative reservoir consisting of sandstone and conglomerate of positive rhythm.Compressional and shear wave velocities,porosity,and clay content are measured in two states fully saturated with water( S w =1) and gas( S w=0),respectively.The regression analysis shows that the velocities are liner relationship related to porosity and clay content.Using such regression formula to sonic logging data indicates that the coefficients of the formula should be determined by statistical method about specific area,instead of fixed values. |
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| Keywords: | velocity porosity clay content regression analysis |
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