Patent ID: 9330064
Filing Date: 2016-05-03
CPC Classification: G01V,G06F

Claim Text:
1. A method for updating geological models, comprising: a) performing a normal score transform on a current geological model realization using a computer processor, the current geological model realization belonging to a predefined number of geological model realizations for a geological model; b) performing a forward discrete DCT on the current geological model realization, the results representing current DCT coefficients; c) selecting a random sample from the predefined number of geological model realizations or from a distribution of DCT coefficients; d) performing a normal score transform on the random sample geological model realizations selected; e) performing a forward discrete DCT on the random sample geological realizations processed by the normal score transform, the results representing a random sample of DCT coefficients; f) truncating the current DCT coefficients and the random sample of DCT coefficients; g) updating each current DCT coefficient that was truncated; h) performing an inverse discrete DCT on each updated DCT coefficient, the results representing an updated geological model; i) performing a normal score transform on the updated geological model, the results representing an updated geological model in zero-mean and unit-variance domain; and j) renormalizing the updated geological model.