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:
Apr. 05, 2022
Filed:
Nov. 09, 2020
Applicant:
Saudi Arabian Oil Company, Dhahran, SA;
Inventor:
Elizabeth Q. Contreras, Houston, TX (US);
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/487 (2006.01); C09K 8/493 (2006.01); C09K 8/467 (2006.01); C04B 20/10 (2006.01); C04B 28/02 (2006.01); C04B 28/04 (2006.01); C04B 103/00 (2006.01); C04B 24/12 (2006.01); C04B 24/28 (2006.01);
U.S. Cl.
CPC ...
C09K 8/487 (2013.01); C04B 20/1037 (2013.01); C04B 28/02 (2013.01); C09K 8/467 (2013.01); C09K 8/493 (2013.01); C04B 24/121 (2013.01); C04B 24/287 (2013.01); C04B 28/04 (2013.01); C04B 2103/0046 (2013.01); C04B 2103/0062 (2013.01);
Abstract
Embodiments provide a method for controlled release of a cement additive for use in a wellbore. The method includes the steps of mixing an aramide capsule with a cement slurry to form an additive-containing slurry, and introducing the additive-containing slurry into the wellbore. The aramide capsule is formed by interfacial polymerization where an aramide polymer forms a semi-permeable membrane encapsulating the cement additive.