Effective suppression of spurious events when generating reflected P- and PS-wave data using seismic interferometry
- Authors
- Jeong, Soocheol; Byun, Joongmoo
- Issue Date
- Jul-2014
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Seismic interferometry; Virtual source method; Cross-correlation; f-k filtering; Spurious event
- Citation
- JOURNAL OF APPLIED GEOPHYSICS, v.106, pp.14 - 22
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF APPLIED GEOPHYSICS
- Volume
- 106
- Start Page
- 14
- End Page
- 22
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/159598
- DOI
- 10.1016/j.jappgeo.2014.04.002
- ISSN
- 0926-9851
- Abstract
- Seismic interferometry is a technique for generating new seismic responses by cross-correlating seismic observations at different receiver locations that is gaining popularity for imaging and monitoring subsurface structures below a complex overburden. In seismic interferometry, extracting an exact response is an important issue. The energy of a stationary zone contributes to the collection of correct events, but the energy of a nonstationary zone causes spurious events. The cross-correlation gather has both stationary energy and nonstationary energy. If the nonstationary energy in the cross-correlation gather is not canceled out during stacking, it introduces spurious events in the stacked result. In this study, we present a simple and effective method for suppressing the spurious events that occur during the generation of virtual source data by using f-k filtering with edge muting. In a test using synthetic multicomponent data created under the geometry of the Ocean Bottom Cable survey, the proposed method successfully suppressed spurious events in multicomponent interferometric data.
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