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. 03, 2026

Filed:

Jan. 27, 2025
Applicant:

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

Inventors:

Richard Frank Vargo, Houston, TX (US);

Anoop Sheshrao Jogdand, Pune, IN;

K V V N Krishna Babu Yerubandi, Houston, TX (US);

Nachiket Hemant Gokhale, Pune, IN;

Venkata Gopala Rao Palla, Houston, TX (US);

Walmy Cuello Jimenez, Houston, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01S 15/08 (2006.01); E21B 47/07 (2012.01); E21B 47/095 (2012.01);
U.S. Cl.
CPC ...
G01S 15/08 (2013.01); E21B 47/07 (2020.05); E21B 47/095 (2020.05);
Abstract

A variety of methods and systems for detecting top of cement in well operations are disclosed, including, in one embodiment, a method for detecting top of cement, including: emitting input energy signals into a cement displacement fluid positioned in a casing, wherein the input energy signals travel in the cement displacement fluid down the casing and are reflected in the casing to form reflected energy signals that return to a surface, and wherein the input energy signals are emitted while a cement composition is setting to harden and form compressive strength in a borehole annulus; measuring one or more properties of the reflected energy signals; and determining the top of cement of the cement composition in the borehole annulus based on at least the one or more properties and temperature data of the borehole.


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