The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 10, 2023

Filed:

Sep. 10, 2021
Applicant:

Baker Hughes Oilfield Operations Llc, Houston, TX (US);

Inventors:

Baoyan Li, Houston, TX (US);

Elan Yogeswaren, Houston, TX (US);

Marc Ramirez, Houston, TX (US);

Freddy Mendez, Houston, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/005 (2012.01); G01V 1/50 (2006.01); E21B 47/007 (2012.01); G06N 20/00 (2019.01);
U.S. Cl.
CPC ...
E21B 47/005 (2020.05); E21B 47/007 (2020.05); G01V 1/50 (2013.01); G06N 20/00 (2019.01); E21B 2200/20 (2020.05); G01V 2210/1299 (2013.01); G01V 2210/1429 (2013.01); G01V 2210/60 (2013.01);
Abstract

A method and system to be used in well inspection. An acoustic signal is transmitted from a well inspection tool into a well structure and one or more return signals is detected using at least one receiver. At least one processor is used to generate variable density log (VDL) data that includes multiple waveforms in a time domain from the one or more return signals. A number of independent components to be used based on variances in the VDL data is determined and the multiple waveforms are decomposed into multiple components associated with one or more local structure variances of the well structure using independent component analysis (ICA) and the number of independent components. Characteristics of the well structure is determined based in part on patterns or features associated with one or more independent components from the multiple components.


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