Patent ID: 11873711
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Measurement (Instruments)
Classification: CPC E  G | IPC E  G

Claim 16:
17. The system of claim 15, wherein the instructions to generate the one or more remote field eddy current look-up curves comprise instructions to:
select a baseline measurement that corresponds to a nominal section of the multiple nested conductive pipes and estimate magnetic permeability and electrical conductivity of the multiple nested conductive pipes based on the baseline measurement;
determine a time instant in a decay response that corresponds to a remote field eddy current regime by use of the estimated magnetic permeability and electrical conductivity and a known nominal thickness of the pipes of the multiple nested conductive pipes; and
generate the one or more remote field eddy current look-up curves by use of the time instant and use of the estimated magnetic permeability and electrical conductivity and the known nominal thickness of the pipes of the multiple nested conductive pipes, wherein the program code to generate the one or more remote field eddy current look-up curves includes program code to compute the one or more remote field eddy current look-up curves by at least one of:
performance of a run of a model a number of times equal to the number of the pipes, after the model is calibrated to the baseline measurement, and
a use of two baseline measurements without a run of a model.