Systematic Detection and Correction of Instrument-Related Time Shifts Using Seismic Interferometric Surface Waves

Jos De Laat, Kees Weemstra, A Verdel, Philippe Jousset, Gylfi Páll Hersir, Hanna Blanck

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

Timing errors are a notorious problem in seismic data acquisition and processing. A technique is presented that allows such time shifts to be detected and corrected in a systematic fashion. The methodology relies on virtualsource
responses retrieved through the application of seismic interferometry (SI). In application to recordings of ambient seismic noise, SI involves temporal averaging of time-windowed crosscorrelation measurements. Because
surface waves dominate the ambient seismic field, the retrieved interferometric responses are typically also dominated by surface waves. Under favorable conditions, these interferometric responses therefore approach the
surface-wave part of the medium's Green's function. Additionally, however, its time-reverse is also retrieved under those conditions. This implies time-symmetry of the time-averaged receiver-receiver crosscorrelations. It is this
time-symmetry that is exploited in this study. By comparing the arrival time of the interferometric surface waves at positive time to the arrival time of the interferometric surface waves at negative time for a large a number of receiverreceiver pairs, relative timing errors are determined in a least-squared sense. The proposed methodology is validated using both synthetic data and field data. The results hold particular promise for time-lapse (4D) seismic
surveys.
Original languageEnglish
Title of host publication80th EAGE Conference and Exhibition 2018, 11-14 June, Copenhagen, Denmark
Number of pages5
DOIs
Publication statusPublished - 2018
Event80th EAGE Conference and Exhibition 2018: Opportunities presented by the energy transition - Copenhagen, Denmark
Duration: 11 Jun 201814 Jun 2018
Conference number: 80
https://events.eage.org/2018/EAGE%20Annual%202018

Conference

Conference80th EAGE Conference and Exhibition 2018
Abbreviated titleEAGE 2018
CountryDenmark
CityCopenhagen
Period11/06/1814/06/18
Internet address

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