Patent ID: 6272232
Filing Date: 2001-08-07
Classification: G01V

Abstract:
A method of morphologically surveying geological formations traversed by a borehole, comprising the steps of:constructing an initial image of a wall of the borehole representative of variations in a physical parameter of the formation in a longitudinal direction of the borehole (""depth"") and in a peripheral direction of the borehole wall (""laterally""), the initial image comprising image components which extend at least partially across the initial image of said parameter;constructing from the initial image a ""crossing-component image"" which includes only those image components that extend completely laterally across the initial image from one side of the initial image to the other; anddetermining variations in at least one attribute relating to said parameter in the crossing-component image as a function of depth, said a least one attribute being selected to distinguish formations of different morphologies said variations vs. depth thereby providing information relating to morphology of the formation.