High-resolution 3D site characterization. / Polteau, S.; Lebedeva-Ivanova, N.; Planke, S.; Zastrozhnov, D.; Vanneste, M.; Sauvin, G.; Myklebust, R.; Bunz, S.; Faverola, A. Plaza; Waage, M.; Berndt, C.
3rd Applied Shallow Marine Geophysics Conference. European Association of Geoscientists and Engineers, 2018. (3rd Applied Shallow Marine Geophysics Conference).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
}
TY - GEN
T1 - High-resolution 3D site characterization
AU - Polteau, S.
AU - Lebedeva-Ivanova, N.
AU - Planke, S.
AU - Zastrozhnov, D.
AU - Vanneste, M.
AU - Sauvin, G.
AU - Myklebust, R.
AU - Bunz, S.
AU - Faverola, A. Plaza
AU - Waage, M.
AU - Berndt, C.
N1 - Publisher Copyright: © Near Surface Geoscience Conference & Exhibition 2018. All rights reserved.
PY - 2018
Y1 - 2018
N2 - We present the results of a novel method for high-resolution 3D site characterization. The strategy is based on using 3D seismic data as the framework for integrating geochemical, geophysical and geotechnical data. The end-results are 3D volumes with various attributes relevant for improved site characterization and ultimately geohazard assessment (i.e. identification of shallow gas, boulders, faults and fractures, leakage, spatial variability, soil strength…). We further show that geochemical data integrated with current high-resolution 3D seismic data can be used to constrain fluid migration pathways to the seafloor. In addition, re-processing focusing on the higher frequencies of 3D seismic data increases the resolution, resulting in a data volume displaying more details on the geology and geomorphology of the sub-surface when compared to data processed for deeper imaging. Finally, we configured an optimized 3D seismic acquisition system, which is fine-tuned for imaging the top 150 m of overburden with a meter-scale lateral and vertical resolution. Such a high-resolution 3D seismic system would provide data volumes that allow well-constrained integration of various type of data.
AB - We present the results of a novel method for high-resolution 3D site characterization. The strategy is based on using 3D seismic data as the framework for integrating geochemical, geophysical and geotechnical data. The end-results are 3D volumes with various attributes relevant for improved site characterization and ultimately geohazard assessment (i.e. identification of shallow gas, boulders, faults and fractures, leakage, spatial variability, soil strength…). We further show that geochemical data integrated with current high-resolution 3D seismic data can be used to constrain fluid migration pathways to the seafloor. In addition, re-processing focusing on the higher frequencies of 3D seismic data increases the resolution, resulting in a data volume displaying more details on the geology and geomorphology of the sub-surface when compared to data processed for deeper imaging. Finally, we configured an optimized 3D seismic acquisition system, which is fine-tuned for imaging the top 150 m of overburden with a meter-scale lateral and vertical resolution. Such a high-resolution 3D seismic system would provide data volumes that allow well-constrained integration of various type of data.
UR - http://www.scopus.com/inward/record.url?scp=85057262123&partnerID=8YFLogxK
U2 - 10.3997/2214-4609.201802674
DO - 10.3997/2214-4609.201802674
M3 - Conference contribution
AN - SCOPUS:85057262123
T3 - 3rd Applied Shallow Marine Geophysics Conference
BT - 3rd Applied Shallow Marine Geophysics Conference
PB - European Association of Geoscientists and Engineers
T2 - 3rd Applied Shallow Marine Geophysics Conference
Y2 - 9 September 2018 through 13 September 2018
ER -
ID: 86064763