SOF seismic image enhancement method based on the dip diffusion factor
Yang Ning1, He Zhen-hua1,2, Wen Xiao-tao1,2, Huang De-ji2, Chen Ting3
1. State Key Lab of Reservoir Geology and Development Engineering,Chengdu Univesity of Technology,Chengdu City,Sichuan Province,610059,China ;
2. College of Information Engineering,Chengdu Univesity of Technology,Chengdu City,Sichuan Province,610059,China;
3. Tianfu College,Southwestern University of Finance and Economics,Mianyang City,Sichuan Province,621000,China
Abstract:In order to enhance the seismic image and highlight the seismic geometric attributes,a SOF seismic image enhancement method based on the dip diffusion factor was proposed in this paper.The complex channel information was firstly used to estimate the dip information,with which the discontinuity of the seismic image was detected,then the dip diffusion factor and the structure tensor were estimated,and at last the anisotropy diffusion algorithm was used to smooth the seismic sections.The application results of the field data show that the method not only has a strong ability to suppress noise,but also could enhances the continuity of the lateral reflection events,the method is also conducive for the seismic interpreter to extract useful seismic geometric attributes,and to finely interpret the subsurface target structures.