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:
Aug. 15, 2023
Filed:
Oct. 05, 2021
Applicant:
Saudi Arabian Oil Company, Dhahran, SA;
Inventors:
Sara Abdulaziz Alkhalaf, Alkhobar, SA;
Abdullah Al-Yami, Dhahran, SA;
Vikrant Wagle, Dhahran, SA;
Ali Alsafran, Dhahran, SA;
Assignee:
SAUDI ARABIAN OIL COMPANY, Dhahran, SA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/467 (2006.01); C09K 8/42 (2006.01);
U.S. Cl.
CPC ...
C09K 8/467 (2013.01); C09K 8/426 (2013.01);
Abstract
A cement slurry in a downhole well has a composition that includes a cement in an amount of 60% to 80% by weight of the cement slurry, water in an amount of 20% to 40% by weight of the cement slurry, and a retarder in an amount of 0.1% to 2% by weight of the cement slurry. The cement includes 70% to 90% of at least one silicate by weight of the cement. The retarder includes sodium lignosulfonate with an alkali content of no more than 5.0 g NaO equivalent/liter of admixture.