Apparatus for measuring radial resistivities in cylindrical core samples of porous rock

摘要: A cylindrical core sample of a subterranean formation is place into sleeve under confining pressure. At least one electrode array extends through the and makes contact with sample. The in plane normal to has an even number electrodes equally spaced about sleeve. current passed voltages are measured across each pair that 180° apart around Such measurements utilized identify radial direction any electrical anisotropy sample, particularly differing fluid saturation conditions.