Low frequency passive seismic tomography using Valhall LoFS

A. Mordret; N.M. Shapiro; S. Singh; P. Roux; O.I. Barkved

doi:10.3997/2214-4609.20145295

Low frequency passive seismic tomography using Valhall LoFS

A. Mordret, N.M. Shapiro, S. Singh, P. Roux, O.I. Barkved

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › peer-review

2 Citations (Scopus)

Abstract

We used 6 hours of vertical component continuous data recorded from more than 2400 receivers of the Valhall LoFS for passive seismic interferometry. The Correlation Functions contain symmetrical Scholte-waves in the 0.1-2 Hz frequency range and we showed by beamforming that the sources of these waves were homogeneously distributed around the array. We constructed group velocity dispersion curves of the extracted Scholte-waves and inverted them to produce a group velocity map of the Valhall field subsurface. We found that seismic velocities were higher in the center of the array than at its edge. It is in good agreement with geomechanical models based on the sea-floor subsidence due to the reservoir production.

Original language	English
Title of host publication	3rd EAGE Passive Seismic Workshop 2011: Actively Passive
Publisher	European Association of Geoscientists and Engineers
Pages	6-10
Number of pages	5
ISBN (Print)	978-1-5108-2842-1
DOIs	https://doi.org/10.3997/2214-4609.20145295
Publication status	Published - 2011
Externally published	Yes
Event	3rd Passive Seismic Workshop: Actively Passive! - Athens, Greece Duration: 27 Mar 2011 → 30 Mar 2011

Conference

Conference	3rd Passive Seismic Workshop: Actively Passive!
Country/Territory	Greece
City	Athens
Period	27/03/11 → 30/03/11

Programme Area

Programme Area 3: Energy Resources

Access to Document

10.3997/2214-4609.20145295

Cite this

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title = "Low frequency passive seismic tomography using Valhall LoFS",

abstract = "We used 6 hours of vertical component continuous data recorded from more than 2400 receivers of the Valhall LoFS for passive seismic interferometry. The Correlation Functions contain symmetrical Scholte-waves in the 0.1-2 Hz frequency range and we showed by beamforming that the sources of these waves were homogeneously distributed around the array. We constructed group velocity dispersion curves of the extracted Scholte-waves and inverted them to produce a group velocity map of the Valhall field subsurface. We found that seismic velocities were higher in the center of the array than at its edge. It is in good agreement with geomechanical models based on the sea-floor subsidence due to the reservoir production.",

author = "A. Mordret and N.M. Shapiro and S. Singh and P. Roux and O.I. Barkved",

year = "2011",

doi = "10.3997/2214-4609.20145295",

language = "English",

isbn = "978-1-5108-2842-1",

pages = "6--10",

booktitle = "3rd EAGE Passive Seismic Workshop 2011: Actively Passive",

publisher = "European Association of Geoscientists and Engineers",

note = "3rd Passive Seismic Workshop: Actively Passive! ; Conference date: 27-03-2011 Through 30-03-2011",

}

TY - GEN

T1 - Low frequency passive seismic tomography using Valhall LoFS

AU - Mordret, A.

AU - Shapiro, N.M.

AU - Singh, S.

AU - Roux, P.

AU - Barkved, O.I.

PY - 2011

Y1 - 2011

N2 - We used 6 hours of vertical component continuous data recorded from more than 2400 receivers of the Valhall LoFS for passive seismic interferometry. The Correlation Functions contain symmetrical Scholte-waves in the 0.1-2 Hz frequency range and we showed by beamforming that the sources of these waves were homogeneously distributed around the array. We constructed group velocity dispersion curves of the extracted Scholte-waves and inverted them to produce a group velocity map of the Valhall field subsurface. We found that seismic velocities were higher in the center of the array than at its edge. It is in good agreement with geomechanical models based on the sea-floor subsidence due to the reservoir production.

AB - We used 6 hours of vertical component continuous data recorded from more than 2400 receivers of the Valhall LoFS for passive seismic interferometry. The Correlation Functions contain symmetrical Scholte-waves in the 0.1-2 Hz frequency range and we showed by beamforming that the sources of these waves were homogeneously distributed around the array. We constructed group velocity dispersion curves of the extracted Scholte-waves and inverted them to produce a group velocity map of the Valhall field subsurface. We found that seismic velocities were higher in the center of the array than at its edge. It is in good agreement with geomechanical models based on the sea-floor subsidence due to the reservoir production.

UR - http://www.scopus.com/inward/record.url?scp=85086491128&partnerID=8YFLogxK

U2 - 10.3997/2214-4609.20145295

DO - 10.3997/2214-4609.20145295

M3 - Conference article in proceedings

AN - SCOPUS:85086491128

SN - 978-1-5108-2842-1

SP - 6

EP - 10

BT - 3rd EAGE Passive Seismic Workshop 2011: Actively Passive

PB - European Association of Geoscientists and Engineers

T2 - 3rd Passive Seismic Workshop: Actively Passive!

Y2 - 27 March 2011 through 30 March 2011

ER -

Low frequency passive seismic tomography using Valhall LoFS

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