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:
Sep. 12, 2023
Filed:
Jul. 30, 2021
Applicant:
Saudi Arabian Oil Company, Dhahran, SA;
Inventors:
Assignee:
SAUDI ARABIAN OIL COMPANY, Dhahran, SA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/504 (2006.01); C09K 8/508 (2006.01); E21B 33/138 (2006.01); C09K 8/516 (2006.01);
U.S. Cl.
CPC ...
C09K 8/5045 (2013.01); C09K 8/508 (2013.01); C09K 8/516 (2013.01); E21B 33/138 (2013.01); C09K 2208/10 (2013.01);
Abstract
A downhole system includes a packer sealing an annular space around a downhole tubing and an insulating packer fluid positioned within the annular space and adjacent to the packer. The insulating packer fluid includes a sodium bicarbonate activator and an acidic nanosilica dispersion having silica nanoparticles and a stabilizer, wherein the pH of the acidic nanosilica dispersion ranges from 2 to 5, and the silica nanoparticles form at least 20 percent by weight of the acidic nanosilica dispersion.