APPARATUS AND METHOD FOR CALCULATING EARTH'S POLARIZATION PROPERTIES FROM AIRBORNE TIME-DOMAIN ELECTROMAGNETIC DATA

摘要

A device and method for estimating an apparent chargeability of a surveyed underground formation. The method includes receiving (300) a total response of the underground formation from an airborne time domain electromagnetic (TDEM) survey system; separating (302), in two stages, the total response into an inductive response and an induced polarization response; and calculating (308) the apparent chargeability based on the induced polarization response.