A METHOD FOR COMPUTING A THERMAL PARAMETER OF A PASSIVE MARGIN AREA AND ASSOCIATED SYSTEM

摘要

The invention deals with a method (500) for computing at least one thermal parameter of a passive margin comprising a sedimentary prism. The passive margin area comprises a calibration well crossing the sedimentary prism. The method comprises: - obtaining (51 0) a current geometry of the sedimentary prism, - obtaining (520) a time variation of the bathymetry (R_bathy^well at the calibration well, - computing (530) a sedimentation rate (R_sed^margin) of the passive margin area, - computing (540) a time variation of bathymetry (R_bathy^margin) of the passive margin area, - computing (550) a subsidence rate (R_sub^margin) of the passive margin area, - computing (560) a modelled subsidence rate (R_sub^model) for the passive margin area using a geodynamic basin model, - determining (570) at least one set of optimal model input parameters of the geodynamic basin model, - computing (580) at least one thermal parameter of the passive margin area using the optimal set of model input parameters.