Type
Conference PaperKAUST Department
Center for Subsurface Imaging and Fluid ModelingEarth Science and Engineering Program
Physical Science and Engineering (PSE) Division
Date
2016-09Online Publication Date
2016-09Print Publication Date
2016-09Permanent link to this record
http://hdl.handle.net/10754/626425
Metadata
Show full item recordAbstract
We present parsimonious refraction interferometry where a densely populated refraction data set can be obtained from just two shot gathers. The assumptions are that the first arrivals are comprised of head waves and direct waves, and a pair of reciprocal shot gathers is recorded over the line of interest. The refraction traveltimes from these reciprocal shot gathers can be picked and decomposed into O(N2) refraction traveltimes generated by N virtual sources, where N is the number of geophones in the 2D survey. This enormous increase in the number of virtual traveltime picks and associated rays, compared to the 2N traveltimes from the two reciprocal shot gathers, allows for increased model resolution and better condition numbers in the normal equations. Also, a reciprocal survey is far less time consuming than a standard refraction survey with a dense distribution of sources.Citation
Hanafy S, Schuster G (2016) Parsimonious refraction interferometry. SEG Technical Program Expanded Abstracts 2016. Available: http://dx.doi.org/10.1190/segam2016-13688399.1.Publisher
Society of Exploration GeophysicistsConference/Event name
SEG International Exposition and 86th Annual Meeting, SEG 2016Additional Links
http://library.seg.org/doi/10.1190/segam2016-13688399.1ae974a485f413a2113503eed53cd6c53
10.1190/segam2016-13688399.1