FORMATION PARAMETER RETRIEVAL USING RESISTIVITY IMAGING TOOL

摘要

Apparatus and methods are described, such as for obtaining formation parameters of a geological formation. The method includes measuring a resistivity image of the geological formation. The measured resistivity image is compared to a modelled resistivity image where the modelled resistivity image is represented by estimated formation parameters. A cost function is calculated from the measure resistivity image and the modelled resistivity image. The estimated formation parameters are adjusted to generate a set of final formation parameters that represents a modelled resistivity image having a smallest cost function.