Patent ID: 11959378
Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
Field: Civil engineering (Other fields)
Classification: CPC E  G | IPC E  G

Claim 0:
1. A well inspection method, comprising:
determining one or more signals from a well inspection tool in a well structure;
generating, using at least one processor, variable density log (VDL) data from the one or more signals, wherein the VDL data comprises a plurality of waveforms in a time domain;
determining a number of independent components comprised in the VDL data based at least in part variances identified in the VDL data;
decomposing the plurality of waveforms into multiple components using independent component analysis (ICA) and using a number of independent components determined in the VDL data, the multiple components associated with one or more local structure variances of the well structure; and
determining characteristics of the well structure based in part on patterns or features associated with the one or more independent components from the multiple components.