A New Approach to Quantifying Uncertainties, from Seismic Characterisation to Hydrocarbons in Place (Best of EAGE)

Guemene, J.M.¹, B. Paternoster², S. Toinet², P. Biver², T. Gordon³, H. Declerc³ (1) Total, N/A, United Kingdom (2) Total, N/A, (3) Total UK, N/A,

The field presented is a gas accumulation situated in the UK. Three individual sands layers have been identified at the four wells. The total reservoir thickness is under seismic vertifal resolution over most of the field's extension.

An AVO seismic attribute obtained by combination of the near and far substacks exhibited a very good correlation with Net Sand Thickness at well locations.

An AVO versus net sand cross plot was generated from a massive modelling study. It was used to generate 200 possible Net Sand Thickness Maps by bivariate non linear collocated co-simulation