| 用地震资料预测孔隙度的广义协克里格法 |
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| 引用本文： | 孙树海,刘雪莹.用地震资料预测孔隙度的广义协克里格法[J].地球物理学报,1993,36(6):798-804. |
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| 作者姓名： | 孙树海 刘雪莹 |
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| 作者单位： | 1. 同济大学，上海 200092;
2. 大庆师范学校，大庆 163712 |
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| 摘 要： | 在Doyen工作的基础上,本文对简单协克里格法作了一些改进,提出了用地震资料预测孔隙度的广义协克里格法,详细推导证明了其基本公式.并分别用3种方法预测了松辽盆地宋站地区扶余油层含气砂岩储层的孔隙度分布.井孔处的交互检验证明,广义协克里格法比线性回归法和简单协克里格法预测孔隙度的均方根误差分别小40％和30％以上.
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| 关 键 词： | 协克里格法 空间相关函数 孔隙度 |
| 收稿时间： | 1992-05-15 |
GENERALIZED COKRIGING OF POROSITY PREDICTION FROM SEISMIC DATA |
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| SUN SHU-HAI.GENERALIZED COKRIGING OF POROSITY PREDICTION FROM SEISMIC DATA[J].Chinese Journal of Geophysics,1993,36(6):798-804. |
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| Authors: | SUN SHU-HAI |
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| Institution: | 1. Tongji University, Shanghai 200092;
2. Daqing Teachers School, Daqing 163712 |
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| Abstract: | Generalized cokriging of porosity predicion from seismic data has been developed in the paper that is an improvement of simple cokriging developed by Doyen, and its fundamental formulae are inferred and proved in detail. The area] distribution of porosity is estimated in the Fuyu gas-bearing sand reservoir of Songzhan area in Songliao basin by using the three methods respectively. The cross-validation study at the wells demonstrates that the root-mean-square porosity prediction error with generalized cokriging are 40 percent and 30 percent smaller respectively than the error in porosity prediction relying on linear regression and simplecokriging. |
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| Keywords: | Cokriging Spatial correlation function Porosity |
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