Patent ID: 9015014
Filing Date: 2015-04-21
Classification: G01V

Abstract:
1. A method for generating a three dimensional (3D) model of a near surface layer, comprising: generating a one dimensional (1D) geologic model of the near surface layer with a computer system; converting the 1D geologic model to a two dimensional (2D) geologic model of the near surface layer; converting the 2D geologic model to a three dimensional (3D) geologic model of the near surface layer; converting the 3D geologic model to a 3D elastic geologic model of the near surface layer; applying a surface wave modeling to the 3D elastic geologic model to generate a synthetic shot record in an offset time domain; comparing the synthetic shot record with an acquired shot record of seismic data; and adjusting the 3D elastic geologic model if it is determined that the synthetic shot record varies from the acquired shot record.