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. 14, 2020
Filed:
Jul. 17, 2018
Applicant:
Saudi Arabian Oil Company, Dhahran, SA;
Inventors:
Ziyad Alsahlawi, Dhahran, SA;
Ossama R. Sehsah, Al Khobar, SA;
Assignee:
SAUDI ARABIAN OIL COMPANY, Dhahran, SA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/16 (2006.01); E21B 21/10 (2006.01); E21B 33/05 (2006.01); E21B 44/00 (2006.01);
U.S. Cl.
CPC ...
E21B 33/16 (2013.01); E21B 21/10 (2013.01); E21B 33/05 (2013.01); E21B 44/005 (2013.01);
Abstract
An example wellbore cementing system includes a casing to line at least part of a wellbore, and a pipe to introduce cement slurry containing capsules into the wellbore. The capsules include an accelerator. The accelerator reacts with the cement slurry to affect a thickening time of the cement slurry. The example system also includes a substructure having shearing pins. The substructure is arranged to receive the cement slurry from the pipe. The substructure is configured rotate to break at least some of the capsules in the cement slurry.