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Abstract

Summary

This study uses Wave Equation-Based (WEB-AVO engine) forward modelling to explore whether PS-converted wave energy can enhance shear-property estimation from UHR seismic pre-stack inversion in shallow offshore wind farm settings. Initial results indicate that PS amplitudes are consistently one to two orders of magnitude weaker than PP, with minimal contribution from multiples or mode conversions, limiting the value of PS data for shear-property estimation. Based on these findings, we suggest that elastic property estimation from seismic inversion may be more effective with PP-based approaches, and that acquisition efforts should prioritize improvements to PP data (such as increased offset coverage and low-frequency content) over further investment in multicomponent data.

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/content/papers/10.3997/2214-4609.202521192
2025-10-27
2026-01-22
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References

  1. Aki, K. and Richards, P.G. [2002] Quantitative Seismology, 2nd Edition. University Science Books.
    [Google Scholar]
  2. Dhelie, P.E., Haugen, J.A., Straith, K.R., Danielsen, V., Davenne, E., Chasnikov, N., Doulgeris, P., Droujinina, A., Gisolf, A., Gonzalez, H., Haffinger, P. and Zhang, M. [2021] Wave-Equation Based 4D Joint Inversion of PP and PS Seismic Data. 82nd EAGE Annual Conference.
    [Google Scholar]
  3. Gisolf, A., Haffinger, P. and Doulgeris, P. [2017] Reservoir-oriented wave-equation-based seismic amplitude variation with offset inversion. Interpretation, v. 5, No. 3: p. 43–56.
    [Google Scholar]
  4. Gisolf, A. [2016] Parameterisation for Reservoir Oriented AVO Inversion. 78th EAGE Conference.
    [Google Scholar]
  5. ISO 19901-4 [2016] Petroleum and natural gas industries - Specific requirements for offshore structures - Part 4: Geotechnical and foundation design considerations.
    [Google Scholar]
  6. Kelsay, A., Siemann, L., Gisolf, A., Werpup Oguro, A., Doulgeris, P., Ramadan, M. and Morales, N. [2024] Application of Wave Equation-Based Inversion for Geotechnical Characterization in Offshore Wind Farm Site Investigations. 5th EAGE Global Energy Transition Conference (GET 2024).
    [Google Scholar]
  7. Kelsay, A. and Doulgeris, P. [2025] UHRS Elastic Inversion: Addressing Shear Property Limitations and Low-Frequency Model Constraints for CPT Predictions. 86th EAGE Annual Conference.
    [Google Scholar]
  8. Rodriguez-Suarez, C. [2005] Sea-Bottom Shear-Wave Velocities and Mode Conversions. Brazilian Journal of Geophysics, 23(1), 75–87.
    [Google Scholar]
  9. Verschuur, E. [2024] Feasibility study of using AVO inversion for S-wave information from UHR seismic data. 86th EAGE Annual Conference.
    [Google Scholar]
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