基于灰色系统理论的储层参数预测方法与应用

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[摘要]通过数学变换提取某工区目的层的地震属性,

Abstract: The seismic attributein a target zone of a working site is ext- racted by mathematical transform ,

利用灰色系统理论, 对所提取的地震属性和孔隙度进行一次累加生成, 并用灰色关联度分析, 提取与该工区孔隙度关联度较好的地震属性,

grey theoryis used to conduct a accumulated generation for the extracted seismic attributeand porosity and is analyzed by using grey degree of association to extract seismicattribute wit h good porosity correlation in t- he working site ,

然后建立GM (0 , N) 模型, 对该地区的孔隙度进行预测, 得到工区内孔隙度平面分布图。

and then GM (0 , N ) model is established for predicting the porosity in t- he area ,by which the planar distributional diagram of porosity in the working site ispoltted.

结果表明: 预测结果合理, 误差较小, 取得了比较满意的结果。

The resultshows t hat the method is of rational predicting result with less error andsatisfied effect.

[关键词] 灰色系统; 孔隙度预测; 属性提取; 属性优化

Key words : grey system; porosity prediction ; attribute extraction ; attributeoptimization.