Automatic traveltime picking using local time-frequency maps

Handle URI:
http://hdl.handle.net/10754/561691
Title:
Automatic traveltime picking using local time-frequency maps
Authors:
Saragiotis, Christos; Alkhalifah, Tariq Ali ( 0000-0002-9363-9799 ) ; Fomel, Sergey B.
Abstract:
The arrival times of distinct and sufficiently concentrated signals can be computed using Fourier transforms. In real seis- mograms, however, signals are far from distinct. We use local time-frequency maps of the seismograms and its frequency derivatives to obtain frequency-dependent (instantaneous) traveltimes. A smooth division is utilized to control the resolution of the instantaneous traveltimes to allow for a trade-off between resolution and stability. We average these traveltimes over the frequency band which is data-dependent. The resulting traveltime attribute is used to isolate different signals in seismic traces. We demonstrate the effectiveness of this automatic method for picking arrivals by applying it on synthetic and real data. © 2011 Society of Exploration Geophysicists.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Earth Science and Engineering Program; Environmental Science and Engineering Program
Journal:
SEG Technical Program Expanded Abstracts
Issue Date:
Jan-2011
DOI:
10.1190/1.3627520
Type:
Article
ISSN:
10523812
Appears in Collections:
Articles; Environmental Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Earth Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorSaragiotis, Christosen
dc.contributor.authorAlkhalifah, Tariq Alien
dc.contributor.authorFomel, Sergey B.en
dc.date.accessioned2015-08-03T09:02:24Zen
dc.date.available2015-08-03T09:02:24Zen
dc.date.issued2011-01en
dc.identifier.issn10523812en
dc.identifier.doi10.1190/1.3627520en
dc.identifier.urihttp://hdl.handle.net/10754/561691en
dc.description.abstractThe arrival times of distinct and sufficiently concentrated signals can be computed using Fourier transforms. In real seis- mograms, however, signals are far from distinct. We use local time-frequency maps of the seismograms and its frequency derivatives to obtain frequency-dependent (instantaneous) traveltimes. A smooth division is utilized to control the resolution of the instantaneous traveltimes to allow for a trade-off between resolution and stability. We average these traveltimes over the frequency band which is data-dependent. The resulting traveltime attribute is used to isolate different signals in seismic traces. We demonstrate the effectiveness of this automatic method for picking arrivals by applying it on synthetic and real data. © 2011 Society of Exploration Geophysicists.en
dc.subjectAttributesen
dc.subjectProcessingen
dc.subjectSpectralen
dc.subjectTomographyen
dc.subjectTraveltimeen
dc.titleAutomatic traveltime picking using local time-frequency mapsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentEarth Science and Engineering Programen
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.identifier.journalSEG Technical Program Expanded Abstractsen
dc.contributor.institutionUniversity of Texas at Austin, United Statesen
kaust.authorSaragiotis, Christosen
kaust.authorAlkhalifah, Tariq Alien
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