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:
Sep. 15, 2026

Filed:

Apr. 16, 2024
Applicant:

United States Department of Energy, Washington, DC (US);

Inventors:

Paul R. Ohodnicki, Allison Park, PA (US);

Jagannath Devkota, Pittsburgh, PA (US);

Roman Shugayev, Albuquerque, NM (US);

Ruishu Wright, Pittsburgh, PA (US);

Assignee:

United States Department of Energy, Washington, DC (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/30 (2006.01); E21B 47/13 (2012.01); E21B 49/00 (2006.01); H01Q 1/36 (2006.01);
U.S. Cl.
CPC ...
G01V 3/30 (2013.01); E21B 47/13 (2020.05); E21B 49/00 (2013.01); H01Q 1/36 (2013.01);
Abstract

A distributed electromagnetic interrogation system may include a wellbore, a wellbore casing positioned in the wellbore, and a plurality of conformal helical antennas distributed along the wellbore casing. The plurality of conformal helical antennas may be configured to operate in a radio or microwave frequency range and to propagate electromagnetic radiation along an external propagating mode of the wellbore casing. An interrogator may be coupled to receive and process data from the plurality of conformal helical antennas.


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