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

Claim 8:
9. A machine-readable storage device having instructions stored thereon, which, when executed by a control circuitry of a machine, cause the machine to perform operations, the instructions comprising instructions to:
form a measured log including a set of log measurements at different depths using an electromagnetic pulsed tool disposed in multiple nested conductive pipes in a wellbore;
generate one or more remote-field eddy current (RFEC) look-up curves based on measurements of normalized signal level responses for the multiple nested conductive pipes at one or more points in a time decay response;
select an RFEC look-up curve at a point in the time decay response that indicates a total thickness of the multiple nested conductive pipes irrespective of a thickness for any specific one of the multiple nested conductive pipes; and
determine the total thickness of the multiple nested conductive pipes at each depth in the measured log using the selected RFEC look-up curve.