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

Claim 10:
11. The machine-readable storage device of claim 9, 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 estimating magnetic permeability and electrical conductivity of the multiple nested conductive pipes using the baseline measurement;
determine a time instant in a decay response that corresponds to a remote field eddy current regime using 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 using the time instant and using the estimated magnetic permeability and electrical conductivity and the known nominal thickness of the pipes of the multiple nested conductive pipes, wherein the instructions to generate the one or more remote field eddy current look-up curves include instructions to compute the one or more remote field eddy current look-up curves by at least one of:
running a model a number of times equal to the number of the pipes, after the model is calibrated to the baseline measurement, and
using two baselines measurements without running a model.