直接反演多层密度界面的方法研究

SIMULTANEOUS INVERSION OF MULTI-LAYER DENSITY INTERFACE

以二维密度界面反演为例,提出一种空间域直接反演多层密度界面的方法:由地震等资料构造分层界面模型与参数控制,运用光滑约束压缩解空间,使各层界面对应于某一优势频率范围,用遗传算法搜索全局最优解。通过理论模型和实际模型的反演说明了该方法的有效性。

This paper is proposes a new method for inversing the multi-layer density interfaces directly,the novel approach is based on the smooth constraining of density distribution. The purposes of the study are to compress the entire solution space and to lighten the image quality of the inversion result. The results of the theoretical model and field section show that this method is effective and can obtain a better geological interpretation than tradition ones.