Patent ID: 8700372
Filing Date: 2014-04-15
Classification: G01V

Abstract:
1. A method for determining spatial distribution of a physical property within a volume of subsurface rock formations, comprising: generating in a processing system an initial model of spatial distribution of the physical property of the subsurface rock formations using available data, the data related to the physical property distribution within the volume; generating in the processing system a forward model in the wavenumber domain of spatial distribution of a potential field; entering as input to an interpolation performed in the processing system measurements of a physical parameter having a potential field obtained at spaced apart locations above the volume and/or in at least one wellbore penetrating the volume, the measurements obtained from at least one sensor disposed above the volume or having been moved along an interior of a wellbore; generating in the processing system a revised model of spatial distribution of the potential field by interpolating the measurements above the volume and/or in the at least one wellbore to a plurality of positions within the volume, the interpolating performed in the wavenumber domain; and generating in the processing system a revised model of spatial distribution of the physical property by combining inversion with stabilization of inversion in the wavenumber domain in a single equation of the revised potential field model.