地震参数综合处理方法在储层横向预测中的应用

APPLICATION OF SEISMIC PARAMETER INTEGRATED PROCESSING IN RESERVOIR TRASVERSE PREDICTION

建立了一套计算机上可实现的地震参数综合研究的算法和程序,将地震参数综合处理方法变为计算机处理过程,再将地球物理数据转换为地质解释语言.从现有的模式识别或统计分析方法中,选用了输出能量最大准则滤波的综合参数法和标准样本学习的判别分析法进行储层岩性预测.尽管综合参数或判别函数本身已失去了各个参数原有的明确的物理意义,但它却代表了多参数共同性的变化,较可靠地反映出产生这些变化的地质因素.

Seismic parameter integrated processing methods aim to transform the process of integrated study into computerized processing, and to transform seismic parameters picked up according to the target layer into the language of geological description. From the existing patten recognization or statistical analysis methods, we have selected the integrated parameter method for a filter of maximum output energy and the discriminant analysis method which is based on learning from standard samples. After integrated processing of seismic parameters, we can make prediction of reservoir lithology or hydrocarbon. Although the integrated parameter or the discriminant function. has lost its original physical significance, it stands for the changes in the general features of many parameters, and reflects more reliably the geological factors causing these changes. Test results show clearly that the integrated parameter method and the discriminant analysis method are practical and useful in reservoir transverse prediction.