The disclosure is directed to a technique used for determining the mudcake-corrected water-filled porosity of formations surrounding a borehole, and which can also be used for determining the thickness of the mudcake formed on the borehole. Microwave electromagnetic energy is transmitted into the formations....http://www.google.fr/patents/US4300098?utm_source=gb-gplus-shareBrevet US4300098 - Microwave electromagnetic logging with mudcake correction
Microwave electromagnetic logging with mudcake correction
