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:
Apr. 08, 2025

Filed:

Aug. 03, 2023
Applicant:

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

Inventors:

Mark Collins, Houston, TX (US);

Qingtao Sun, Spring, TX (US);

Amit Padhi, Houston, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 47/16 (2006.01); E21B 47/005 (2012.01); E21B 47/107 (2012.01); G01N 29/04 (2006.01);
U.S. Cl.
CPC ...
E21B 47/16 (2013.01); E21B 47/005 (2020.05); E21B 47/107 (2020.05); G01N 29/041 (2013.01);
Abstract

Systems and methods of evaluating well cementation are disclosed. In certain embodiments, a tool is lowered into a casing surrounded by an annular material within a wellbore. An emitter of the tool emits an acoustic signal at a first pitch angle selected to excite a mixed-mode Lamb wave comprising a symmetric extensional (Sn) mode and an asymmetric flexural (An) mode of a Lamb wave in the casing. A receiver of the tool that is disposed at a first distance from the emitter receives a portion of the Lamb wave that has leaked from the casing at approximately the first distance.


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