Super-virtual Interferometric Separation and Enhancement of Back-scattered Surface Waves
Type
ArticleKAUST Department
Center for Subsurface Imaging and Fluid ModelingEarth Science and Engineering Program
Physical Science and Engineering (PSE) Division
Date
2015-08-19Online Publication Date
2015-08-19Print Publication Date
2015-08-19Permanent link to this record
http://hdl.handle.net/10754/593187
Metadata
Show full item recordAbstract
Back-scattered surface waves can be migrated to detect near-surface reflectors with steep dips. A robust surface-wave migration requires the prior separation of the back-scattered surface-wave events from the data. This separation is often difficult to implement because the back-scattered surface waves are masked by the incident surface waves. We mitigate this problem by using a super-virtual interferometric method to enhance and separate the back-scattered surface waves. The key idea is to calculate the virtual back-scattered surface waves by stacking the resulting virtual correlated and convolved traces associated with the incident and back-scattered waves. Stacking the virtual back-scattered surface waves improves their signal-to-noise ratio and separates the back-scattered surface-waves from the incident field. Both synthetic and field data results validate the robustness of this method.Citation
Bowen Guo*, Sherif Hanafy, and Gerard Schuster (2015) Super-virtual Interferometric Separation and Enhancement of Back-scattered Surface Waves. SEG Technical Program Expanded Abstracts 2015: pp. 5092-5096. doi: 10.1190/segam2015-5859452.1Publisher
Society of Exploration GeophysicistsAdditional Links
http://library.seg.org/doi/10.1190/segam2015-5859452.1ae974a485f413a2113503eed53cd6c53
10.1190/segam2015-5859452.1