Time-lapse Bayesian AVO inversion applied to the Edvard Grieg field in the North Sea

Publication details

  • Journal: SEG technical program expanded abstracts, 2022
  • International Standard Numbers:
    • Printed: 1949-4645
    • Electronic: 1949-4645
  • Link:

Seismic data acquired at different times can provide insight into changes in an oil/gas reservoir. We apply time-lapse AVO inversion methodology to the Edvard Grieg field in the North Sea. The methodology we use inverts for discrete lithology-fluid classes (LFCs), where different fluid fillings and/or pressure effects in the monitor are represented by different LFCs. Our focus here is on fluid substitution. We only look at amplitude effects, and use monitor time-lapse data that is time aligned with the base seismic.