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

Claim 14:
15. A system comprising:
a tool, the tool being an electromagnetic pulsed tool having a transmitter coil and a receiver coil arranged such the receiver coil receives a secondary field in response to a primary field generated from the transmitter coil; and
a processor;
a machine-readable storage medium comprising program code executable by the processor, the program code including instructions to,
evaluate multiple nested conductive pipes in a wellbore at different depths from a set of log measurements acquired by use of the tool disposed in the multiple nested conductive pipes;
form a measured log including one or more of the log measurements at the different depths in the multiple nested conductive pipes;
generate a remote-field eddy current (RFEC) look-up curve 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 by use of the selected RFEC look-up curve.