[Society of Exploration Geophysicists and Society of Exploration Geophysicists of Japan The 13th SEGJ International Symposium, Tokyo, Japan, 12-14 November 2018 - Tokyo, Japan (12 November to 14 November)] The 13th SEGJ International Symposium, Tokyo, Japan, 12-14 November 2018 - FEM Numerical Simulation of Electrical Flow in Cylindrical Soft Clay Core Samples for Construction of a Resistivity Correction Factor Chart