Patent ID: 6278948
Filing Date: 2001-08-21
Classification: G01V

Abstract:
A method for determining a parameter of interest of an anomalous subterranean formation comprising:(a) measuring at least one component of geophysical tensor data at a plurality of locations over a region including the anomalous formation, said geophysical tensor data selected from magnetic data and gravity data;(b) determining a geophysical model of the region including the anomalous formation;(c) for said model, estimating a value of said at least one component of geophysical tensor data at said plurality of locations;(d) determining a difference between said estimated value and said measured value of said measurements at said plurality of locations;(e) updating the model of the region based on said difference;(f) iteratively repeating steps c-e until said difference is less than a predetermined value; and(g) using said updated model to determine the parameter of interest.