Parsimonious wave-equation travel-time inversion for refraction waves

Handle URI:
http://hdl.handle.net/10754/623887
Title:
Parsimonious wave-equation travel-time inversion for refraction waves
Authors:
Fu, Lei; Hanafy, Sherif M.; Schuster, Gerard T. ( 0000-0001-7532-1587 )
Abstract:
We present a parsimonious wave-equation travel-time inversion technique for refraction waves. A dense virtual refraction dataset can be generated from just two reciprocal shot gathers for the sources at the endpoints of the survey line, with N geophones evenly deployed along the line. These two reciprocal shots contain approximately 2N refraction travel times, which can be spawned into O(N2) refraction travel times by an interferometric transformation. Then, these virtual refraction travel times are used with a source wavelet to create N virtual refraction shot gathers, which are the input data for wave-equation travel-time inversion. Numerical results show that the parsimonious wave-equation travel-time tomogram has about the same accuracy as the tomogram computed by standard wave-equation travel-time inversion. The most significant benefit is that a reciprocal survey is far less time consuming than the standard refraction survey where a source is excited at each geophone location.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Fu L, Hanafy SM, Schuster GT (2017) Parsimonious wave-equation travel-time inversion for refraction waves. Geophysical Prospecting. Available: http://dx.doi.org/10.1111/1365-2478.12488.
Publisher:
Wiley-Blackwell
Journal:
Geophysical Prospecting
Issue Date:
14-Feb-2017
DOI:
10.1111/1365-2478.12488
Type:
Article
ISSN:
0016-8025
Sponsors:
The research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST) in Thuwal, Saudi Arabia. The authors would like to thank the sponsors of the Center for Subsurface Imaging and Modeling (CSIM) Consortium for their financial support. For computer time, this research used the resources of the Supercomputing Laboratory at KAUST and the IT Research Computing Group. The authors would like to thank them for providing the computational resources required for carrying out this work.
Additional Links:
http://onlinelibrary.wiley.com/doi/10.1111/1365-2478.12488/full
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorFu, Leien
dc.contributor.authorHanafy, Sherif M.en
dc.contributor.authorSchuster, Gerard T.en
dc.date.accessioned2017-05-31T11:23:11Z-
dc.date.available2017-05-31T11:23:11Z-
dc.date.issued2017-02-14en
dc.identifier.citationFu L, Hanafy SM, Schuster GT (2017) Parsimonious wave-equation travel-time inversion for refraction waves. Geophysical Prospecting. Available: http://dx.doi.org/10.1111/1365-2478.12488.en
dc.identifier.issn0016-8025en
dc.identifier.doi10.1111/1365-2478.12488en
dc.identifier.urihttp://hdl.handle.net/10754/623887-
dc.description.abstractWe present a parsimonious wave-equation travel-time inversion technique for refraction waves. A dense virtual refraction dataset can be generated from just two reciprocal shot gathers for the sources at the endpoints of the survey line, with N geophones evenly deployed along the line. These two reciprocal shots contain approximately 2N refraction travel times, which can be spawned into O(N2) refraction travel times by an interferometric transformation. Then, these virtual refraction travel times are used with a source wavelet to create N virtual refraction shot gathers, which are the input data for wave-equation travel-time inversion. Numerical results show that the parsimonious wave-equation travel-time tomogram has about the same accuracy as the tomogram computed by standard wave-equation travel-time inversion. The most significant benefit is that a reciprocal survey is far less time consuming than the standard refraction survey where a source is excited at each geophone location.en
dc.description.sponsorshipThe research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST) in Thuwal, Saudi Arabia. The authors would like to thank the sponsors of the Center for Subsurface Imaging and Modeling (CSIM) Consortium for their financial support. For computer time, this research used the resources of the Supercomputing Laboratory at KAUST and the IT Research Computing Group. The authors would like to thank them for providing the computational resources required for carrying out this work.en
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1111/1365-2478.12488/fullen
dc.subjectAcquisitionen
dc.subjectRefraction tomographyen
dc.subjectWTen
dc.titleParsimonious wave-equation travel-time inversion for refraction wavesen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalGeophysical Prospectingen
dc.contributor.institutionGeophysics Department Cairo University Giza 12613 Egypten
kaust.authorFu, Leien
kaust.authorHanafy, Sherif M.en
kaust.authorSchuster, Gerard T.en
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