小波神经网络在致密砂岩储层参数预测中的应用

储层参数预测一直是地震勘探的关键和难点问题。本文介绍了小波神经网络的原理,设计了一种采用熵函数作为BP小波网络的能量函数的BP小波神经网络算法。(在此基础上)并利用多种测井数据和取芯资料作为小波网络的学习样本,最后把这种模型用于致密砂岩储层参数的预测。实验结果表明该模型具有较好的逼近能力,预测效果良好。

Application of WNN Algorithm in Reservoir Prediction of Compact Sandstone

Prediction of reservoir parameters is always the bottle neck problem and difficulty in seismic survey.The paper introduce the principl of WNN algorithm,designs a BP-WNN algorithm based on entropy function,and applies the model to the pridiction of reservoir parameters of compact sandstone.Experiment show the model have the preferable approache ability and pridecation performance.