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:
Mar. 16, 2021
Filed:
Mar. 04, 2020
Applicant:
Saudi Arabian Oil Company, Dhahran, SA;
Inventor:
Elizabeth Q. Contreras, Houston, TX (US);
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/16 (2006.01); C09K 8/46 (2006.01); C08F 283/04 (2006.01); C04B 24/28 (2006.01); C04B 24/12 (2006.01); C04B 14/46 (2006.01); C09K 8/467 (2006.01); C04B 28/04 (2006.01); C04B 24/04 (2006.01); C04B 103/00 (2006.01);
U.S. Cl.
CPC ...
C09K 8/46 (2013.01); C04B 14/465 (2013.01); C04B 24/04 (2013.01); C04B 24/121 (2013.01); C04B 24/287 (2013.01); C04B 28/04 (2013.01); C08F 283/04 (2013.01); C09K 8/467 (2013.01); E21B 43/16 (2013.01); C04B 2103/0062 (2013.01);
Abstract
Embodiments provide a method for monitoring structural integrity of a hardened cement. An aramide capsule, a cement, and a water to form a cement slurry. The cement slurry is set to form a hardened cement, where the aramide capsule is embedded in the hardened cement. Imperfections of the hardened cement are detected by measuring electrical resistivity of the hardened cement. The aramide capsule is formed by interfacial polymerization using a surfactant, a dispersed monomer, a crosslinker such that a semi-permeable membrane is formed surrounding a core.