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.
Patent No.:
Date of Patent:
Jul. 21, 2026
Filed:
Oct. 29, 2024
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventors:
William Cecil Pearl, Jr., Houston, TX (US);
Samuel J. Lewis, Houston, TX (US);
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/467 (2006.01); C04B 24/08 (2006.01); C04B 28/02 (2006.01); C04B 103/22 (2006.01); C04B 103/40 (2006.01); C04B 111/00 (2006.01); E21B 33/14 (2006.01);
U.S. Cl.
CPC ...
C09K 8/467 (2013.01); C04B 24/085 (2013.01); C04B 28/02 (2013.01); E21B 33/14 (2013.01); C04B 2103/22 (2013.01); C04B 2103/40 (2013.01); C04B 2111/00146 (2013.01);
Abstract
A cement composition comprising an aqueous fluid, a cement, and a cement retarder. The cement retarder comprises a biosurfactant, and is operable to retard cement thickening of the cement composition, relative to a same cement composition absent the cement retarder, over a temperature range of from about 40° F. (4.4° C.) to about 500° F. (260° C.), from about 40° F. (4.4° C.) to about 400° F. (204.4° C.), from about 50° F. (10° C.) to about 350° F. (176.7° C.), or from about 60° F. (15.6° C.) to about 250° F. (121.1° C.).