Understanding the challenges of sub-sill seismic imaging using full-waveform seismic modelling

Oliver G. Sanford*, Richard W. Hobbs, Nick Schofield, Richard J. Brown

*Corresponding author for this work

Research output: Contribution to conferencePaper

Abstract

Sub-sill seismic imaging is a current exploration challenge, ranging from detection to the impact on deeper imaging. Limited studies have been undertaken as to understand these issues. Here we present new results using constrained models of intrusions and full-waveform seismic modelling techniques to better understand the wave propagation processes, specifically focusing on the causes of reduced imaging. A significant amount of primary energy is lost to refractions, conversions and interbed multiples, however, unlike extrusive basalt, scattering and the associated rapid attenuation of all but the lowest frequency signal is not the significant problem.

Original languageEnglish
Pages3858-3862
Number of pages5
DOIs
Publication statusPublished - 2018
Event88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018 - Anaheim, United States
Duration: 14 Oct 201819 Oct 2018

Conference

Conference88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018
CountryUnited States
CityAnaheim
Period14/10/1819/10/18

Fingerprint

refraction
intrusion
sill
basalt
wave propagation
waveforms
attenuation
scattering
low frequencies
causes
modeling
energy
propagation process
detection

ASJC Scopus subject areas

  • Geophysics

Cite this

Sanford, O. G., Hobbs, R. W., Schofield, N., & Brown, R. J. (2018). Understanding the challenges of sub-sill seismic imaging using full-waveform seismic modelling. 3858-3862. Paper presented at 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018, Anaheim, United States. https://doi.org/10.1190/segam2018-2997634.1

Understanding the challenges of sub-sill seismic imaging using full-waveform seismic modelling. / Sanford, Oliver G.; Hobbs, Richard W.; Schofield, Nick; Brown, Richard J.

2018. 3858-3862 Paper presented at 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018, Anaheim, United States.

Research output: Contribution to conferencePaper

Sanford, OG, Hobbs, RW, Schofield, N & Brown, RJ 2018, 'Understanding the challenges of sub-sill seismic imaging using full-waveform seismic modelling' Paper presented at 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018, Anaheim, United States, 14/10/18 - 19/10/18, pp. 3858-3862. https://doi.org/10.1190/segam2018-2997634.1
Sanford OG, Hobbs RW, Schofield N, Brown RJ. Understanding the challenges of sub-sill seismic imaging using full-waveform seismic modelling. 2018. Paper presented at 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018, Anaheim, United States. https://doi.org/10.1190/segam2018-2997634.1
Sanford, Oliver G. ; Hobbs, Richard W. ; Schofield, Nick ; Brown, Richard J. / Understanding the challenges of sub-sill seismic imaging using full-waveform seismic modelling. Paper presented at 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018, Anaheim, United States.5 p.
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