Xiang M Xiao

US Patent:

20210389485, Dec 16, 2021

Filed:

Jun 11, 2020

Appl. No.:

16/898666

Inventors:

- Beijing, CN
- Houston TX, US
Xiang Xiao - Houston TX, US

Assignee:

Sinopec Tech Houston - Houston TX

International Classification:

G01V 1/28
G01V 99/00
G01V 1/36

Abstract:

A method and a system for implementing the method are disclosed wherein the seismic input data and land acquisition input data may be obtained from a non-flat surface, sometimes mild or foothill topography as well as the shot and receiver lines might not necessarily be straight, and often curve to avoid obstacles on the land surface. In particular, the method and system disclosed, decomposes the cross-spread data into sparse common spread beams, then maps those sparse beams into common-spread depth domain, in order to finally stack them to construct the subsurface depth images. The common spread beam migration and processing have higher signal to noise ratio, as well as faster turn-around processing time, for the cross-spread land acquisition over the common-shot or common offset beam migration/processing. The common spread beam migration method and system disclosed, will eventually help illuminate and interpret the hydro-carbonate targets for the seismic processing.