An adaptable technique for comparative image assessment: Application to crosswell electromagnetic survey design for fluid monitoring

Reservoir integrity stewardship accompanying carbon capture and sequestration considers fluid extraction reinjection as a risk-mitigating method against overpressuring that could lead to caprock damage ensuing [Formula: see text] leakage. Crosswell electromagnetics offers technically viable monitoring with the spatial volume coverage necessary for reservoir-encompassing pressure management. However, certain logistic dilemma deep gas into saline thus electrically conductive aquifers is crosswell magnetic-field measurements underperform in imaging of more resistive plume bodies, further exacerbated when vertical arrays intersect, opposed surround, plumes. Comparative synthetic-data such scenarios rates information content versus electric-field 3D layouts reservoir infrastructure conditions representative pilot site coastal area Florida. The image quality resulting replications can be ranked numerically through newly proposed semblance qualifier, appraising model goodness fit given reference. In contrast common least-squares measures fit, formulation uses classifying function types, enabling better distinction predefined anomaly features.