基于FOA的叠前反演方法  

Prestack inversion method based on fruit-fly optimization algorithm

作　　者：窦玉坛[1] 史松群[2] 刘化清[1] 

机构地区：[1]中国石油勘探开发研究院西北分院,甘肃兰州730020 [2]中国石油长庆油田分公司勘探开发研究院,陕西西安710018

出　　处：《石油地球物理勘探》2013年第6期948-953,1016+851,共6页Oil Geophysical Prospecting

基　　金：国家科技重大专项课题(2011ZX05001-003)资助

摘　　要：本文提出一种基于果蝇优化算法的非线性叠前反演方法,利用Schaffer函数F6进行算法性能测试,并对不同加噪百分比的模型数据利用果蝇优化算法(FOA)进行EI反演,提取相应的弹性参数,反演能够收敛到全局最优解。将此法应用于鄂尔多斯SLG地区实际二维数据,能够快速得到较稳定可靠的弹性反演参数,表明文中方法能够用于指示气层的横向变化。This paper innovatively presents a nonlinear prestack inversion based on fruit-fly optimization algorithm(FOA),and tests the performance of the proposed algorithm by the use of Schaffer function F6.The model data with different percentage of noise are inverted by FOA,then extracts the corresponding elastic parameters.And it shows that the inversion results can converge to the global optimal solution.Finally we use this method in real 2Ddata from SLG area of Erdos Basin.The results show that the inversion method can quickly get reliable and stable inversion parameters which can indicate the lateral variation of gas bearing beds.

关 键 词：FOA非线性 叠前反演 ZOEPPRITZ方程 全局优化 

分 类 号：P631[天文地球—地质矿产勘探]