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

Claim 17:
18. The system of claim 17, further comprising instructions to:
generate a set of curves for predicted signal level at different times in the decay response versus total thickness relationship 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;
set an upper boundary curve for the total thickness by use of a curve with a highest predicted signal level of the set;
set a lower boundary curve for the total thickness by use of a curve with a lowest predicted signal level of the set; and
determine a maximum error in total thickness estimation for a given signal level by use of the upper boundary curve and the lower boundary curve at the given signal level.