Patent ID: 9291735
Filing Date: 2016-03-22
CPC Classification: E21B,G01V

Claim Text:
1. A method for creating seismic models of subsurface structures comprising: collecting survey shot data of a sub-surface area of interest, said area having sub-surface structure; using the collected shot data and one or more seismic modeling algorithms to generate a set of models describing the sub-surface structure of a part or the entire area; for each of said generated models, conducting, in a computer system, a forward modeling simulation of said generated model to generate shot data from the model, the conducting including: measuring the error value between the collected survey shot data and the generated shot data from the simulated model; computing, using a programmed processor device, a certainty measure from the error value to assess a confidence degree of the generated model; and further computing an objective function based on the generated model as a function of said collected survey shot data and a set of model parameters, said objective function defined as a set of partial derivative equations; and iteratively solving said set of partial derivative equations to reach an optimal set of model parameters for use in the generated model, and measuring a progress of an optimization process after each iteration according to where k is an index of iterations, and a difference between an immediately past probability measure of a prior iteration, P