Patent ID: 7343245

Claim:
A method for analyzing seismic data to determine properties of subsurface formations, comprising: obtaining seismic data produced in response to acoustic signals transmitted through the earth; utilizing gathers from said seismic data for producing AVO information comprising a plurality of AVO data points; determining a reference point for said plurality of AVO data points, each of said AVO data points being related to an x, y, z position, said x, y, z position describing a physical location within a subsurface formation; utilizing a distance between said reference point and one or more of said AVO data points to classify said one or more of said AVO data points with respect to at least one of lithology or fluids or porosity; and determining at least one physical property at said x, y, z position of said subsurface formation from said step of utilizing said distance with respect to said reference point to classify one or more of said AVO data.