Super-Virtual Refraction Interferometric Redatuming: Enhancing the Refracted Energy

Handle URI:
http://hdl.handle.net/10754/594360
Title:
Super-Virtual Refraction Interferometric Redatuming: Enhancing the Refracted Energy
Authors:
Aldawood, Ali ( 0000-0002-9535-0825 ) ; Alshuhail, Abdulrahman Abdullatif Abdulrahman; Hanafy, Sherif
Abstract:
onshore seismic data processing. Refraction tomography is becoming a common way to estimate an accurate near surface velocity model. One of the problems with refraction tomography is the low signal to noise ration in far offset data. To improve, we propose using super-virtual refraction interferometry to enhance the weak energy at far offsets. We use Interferometric Green's functions to redatum sources by cross-correlating two traces recorded at receiver stations, A and B, from a source at location W. The result is a redatumed trace with a virtual source at A and a receiver at B, which can also be obtained by correlating two traces recorded at A and B from different shots. Stacking them would enhance the signal-to-noise ratio of this "virtual" trace. We next augment redatuming with convolution and stacking. The trace recorded at B from a virtual source at A is convolved with the original trace recorded at A from a source at W. The result is a "super-virtual" trace at B in the far-offset from a source at W. Stacking N traces gives a vN-improvement. We applied our method to noisy synthetic and field data recorded over a complex near-surface and we could pick more traces at far offsets. It was possible to accommodate more picks resulting in a better subsurface coverage
KAUST Department:
Earth Science and Engineering Program
Publisher:
CSIRO Publishing
Journal:
ASEG Extended Abstracts
Conference/Event name:
22nd International Geophysical Conference and Exhibition
Issue Date:
26-Feb-2012
DOI:
10.1071/ASEG2012ab348
Type:
Conference Paper
ISSN:
2202-0586
Additional Links:
http://www.publish.csiro.au/?paper=ASEG2012ab348
Appears in Collections:
Conference Papers; Earth Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorAldawood, Alien
dc.contributor.authorAlshuhail, Abdulrahman Abdullatif Abdulrahmanen
dc.contributor.authorHanafy, Sherifen
dc.date.accessioned2016-01-19T15:06:37Zen
dc.date.available2016-01-19T15:06:37Zen
dc.date.issued2012-02-26en
dc.identifier.issn2202-0586en
dc.identifier.doi10.1071/ASEG2012ab348en
dc.identifier.otherSuper-Virtual Refraction Interferometric Redatuming: Enhancing the Refracted Energy 2012, 2012 (1):1 ASEG Extended Abstractsen
dc.identifier.urihttp://hdl.handle.net/10754/594360en
dc.description.abstractonshore seismic data processing. Refraction tomography is becoming a common way to estimate an accurate near surface velocity model. One of the problems with refraction tomography is the low signal to noise ration in far offset data. To improve, we propose using super-virtual refraction interferometry to enhance the weak energy at far offsets. We use Interferometric Green's functions to redatum sources by cross-correlating two traces recorded at receiver stations, A and B, from a source at location W. The result is a redatumed trace with a virtual source at A and a receiver at B, which can also be obtained by correlating two traces recorded at A and B from different shots. Stacking them would enhance the signal-to-noise ratio of this "virtual" trace. We next augment redatuming with convolution and stacking. The trace recorded at B from a virtual source at A is convolved with the original trace recorded at A from a source at W. The result is a "super-virtual" trace at B in the far-offset from a source at W. Stacking N traces gives a vN-improvement. We applied our method to noisy synthetic and field data recorded over a complex near-surface and we could pick more traces at far offsets. It was possible to accommodate more picks resulting in a better subsurface coverageen
dc.publisherCSIRO Publishingen
dc.relation.urlhttp://www.publish.csiro.au/?paper=ASEG2012ab348en
dc.rightsArchived with thanks to ASEG Extended Abstractsen
dc.titleSuper-Virtual Refraction Interferometric Redatuming: Enhancing the Refracted Energyen
dc.typeConference Paperen
dc.contributor.departmentEarth Science and Engineering Programen
dc.identifier.journalASEG Extended Abstractsen
dc.conference.date26-29 February 2012en
dc.conference.name22nd International Geophysical Conference and Exhibitionen
dc.conference.locationBrisbane, Australiaen
dc.eprint.versionPublisher's Version/PDFen
kaust.authorAldawood, Alien
kaust.authorAlshuhail, Abdulrahman Abdullatif Abdulrahmanen
kaust.authorHanafy, Sherifen
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