TY - RPRT TI - Casing-integrity mapping using top-casing electrodes and surface based EM fields AU - Wilt, Michael AU - Um, Evan AU - Nichols, Edward AU - Weiss, Chester J. AU - Nieuwenhuis, Greg AU - Maclennan, Kris PY - 2018 DO - 10.1190/segam2018-2983425.1 UR - https://www.osti.gov/biblio/1498488 ID - 1498488 ER -