Pre-stack Depth Migration based on VTI Media in Common Shot Domain

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Song, Liang^1 ; Guo, Tianzhi^1

School of Geological Engineering and Surveying and Mapping, Chang'An University, Xi'an, Shaanxi

710054, China^1

关键词: Anisotropic medium;    Exploration data;    Imaging effects;    Imaging theory;    Isotropic media;    Oil and gas exploration;    Pre-stack depth migrations;    Seismic exploration;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/2/022135/pdf
DOI  :  10.1088/1755-1315/300/2/022135

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

With the increasing complexity of seismic exploration targets, the basic imaging theory based on the basic assumption of simple isotropic media cannot meet the actual needs of oil and gas exploration at this stage. Therefore, the study of imaging methods in anisotropic media is of great significance to the exploration of various underground structures and mineral exploitation. In this paper, the SSF continuation operator for VTI anisotropic medium is derived and the one-way prestack depth migration with VTI media in common shot domain is realized. The VTI-HESS model is verified by calculation. Compared with prestack depth migration of various isotropic media, it can be seen that prestack depth migration of VTI media has better imaging effect because of considering anisotropic parameters, which is closer to the actual imaging effect of exploration data.