公开(公告)号：US11567232B2

公开(公告)日：2023-01-31

申请号：US16304892

申请日：2017-05-15

Applicant: TOTAL SA

Inventor： Philippe Solans ,  Pierre Thore ,  Christian Hubans

IPC: G01V99/00 ,  G01V1/30 ,  G01V11/00

Abstract: A method for providing a calibrated rock-physics model of a subsoil. First, a geological model of the subsoil comprising a grid made of cells, associated with a rock-physics parameter is obtained. A group of cells forming a calibration body is selected in the grid. The calibration body corresponds to a region of the subsoil having substantially homogenous rock-physics parameter values. Finally, an adjustable constant parameter in a physical equation expressing a relationship between the petro-physical parameter and a petro-elastic parameter in the calibration body is calibrated so as to reduce a mismatch between the petro-elastic parameter estimated using the physical equation and a petro-elastic parameter value determined from inverted seismic data, the calibrated physical equation providing a calibrated rock-physics model of the subsoil in the calibration body.