METHOD FOR CORRECTING NMR AND NUCLEAR LOGS IN FORMATE MUD FILTRATE INVADED FORMATONS

摘要

A method of calculating a porosity of a geological formation includes determining a bulk pore volume and a movable fluid pore volume in the geological formation in which drilling mud including a mud filtrate is introduced, calculating a porosity of the formation based on a bulk pore volume, and correcting the porosity based on the movable fluid volume in the geological formation.