基于最大熵谱估计的沉积旋回划分方法探讨
网络出版日期: 2012-04-20
基金资助
国家“863”项目“油藏地球物理关键技术”(编号:2011AA06030)资助
Division of sedimentary cycle sequences based on maximum entropy spectrum estimation
Online published: 2012-04-20
付广 , 周亮 , 安立刚 . 基于最大熵谱估计的沉积旋回划分方法探讨[J]. 岩性油气藏, 2012 , 24(2) : 67 -71 . DOI: 10.3969/j.issn.1673-8926.2012.02.013
In order to improve the division accuracy of sedimentary cycles by log, this paper estimated the prediction error of well log data by using maximum entropy spectrum estimation, and then obtained the prediction error trend curve. Symmetric and asymmetric models were applied to verify this method. The result shows that prediction error curve can be used to identify sedimentary cyclic interface well, and prediction error trend curve can be used to identify half cyclic sequences. This method was applied to divide the cyclic sequences of real well log data, and good results have been obtained.
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