Maximizing Information Gain From Pipe Inspection Inversion

A system for estimating a thickness for each of a plurality of nested tubulars comprising:

• an electromagnetic (EM) logging tool comprising:
• a transmitter disposed on the EM logging tool for transmitting an electromagnetic field from the transmitter into one or more tubulars to energize the one or more tubulars with the electromagnetic field thereby producing an eddy current in the one or more tubulars;
• and
• a receiver disposed on the EM logging tool for measuring the electromagnetic field generated by the eddy current in the one or more tubulars with the receiver on at least one channel to obtain a plurality of measurements;
• and
• an information handling system communicatively connected to the EM logging to and configured to:
• define a prior distribution of individual thickness curves from at least one pipe thickness log based on the plurality of measurements;
• process a first set of depth point measurements to estimate one or more thicknesses of the one or more tubulars at one or more depths in the wellbore;
• compute a posterior distribution of the at least one pipe thickness log based at least in part on the prior distribution and the one or more thicknesses;
• and
• determine a second set of depth point measurements to process based on the posterior distribution.