Vitenskapelig artikkel

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

Kjønsberg, Heidi; Hauge, Ragnar; Ndingwan, Abel Onana


Tidsskrift: SEG technical program expanded abstracts, 2022

Internasjonale standardnumre:
Trykt: 1949-4645
Elektronisk: 1949-4645


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.