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:
Feb. 14, 2023

Filed:

Jul. 12, 2016
Applicant:

Halliburton Energy Services, Inc., Houston, TX (US);

Inventors:

Nam Nguyen, Singapore, SG;

Yi Yang Ang, Singapore, SG;

Rebecca Corina Jachmann, Spring, TX (US);

Yinghui Lu, The Woodlands, TX (US);

Srinivasan Jagannanthan, Houston, TX (US);

Avinash Vinayak Taware, San Jose, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/107 (2012.01); G01V 1/40 (2006.01); G01H 17/00 (2006.01);
U.S. Cl.
CPC ...
E21B 47/107 (2020.05); G01V 1/40 (2013.01); G01H 17/00 (2013.01); G01V 2210/123 (2013.01); G01V 2210/1429 (2013.01); G01V 2210/43 (2013.01);
Abstract

Disclosed are systems and methods for processing broadband acoustic signals acquired by a plurality of acoustic sensors, using an array-signal-processing technique to compute fused-signal maps in the frequency domain for a plurality of frequency bins. In accordance with various embodiments, the fused-signal maps are combined across the frequency bins, with respective weightings that are based on eigenvalues of covariance matrices computed for the plurality of frequency bins. The combined maps can be used to locate an acoustic source in a wellbore.


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