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. 13, 2021
Filed:
Mar. 19, 2020
Applicant:
Chevron U.s.a. Inc., San Ramon, CA (US);
Inventors:
Michael Ryan Fitzsimmons, Katy, TX (US);
Rollyn Rousel Samson Reyes, Houston, TX (US);
Assignee:
Chevron U.S.A. Inc., San Ramon, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 44/00 (2006.01); E21B 45/00 (2006.01); E21B 49/00 (2006.01); E21B 47/007 (2012.01);
U.S. Cl.
CPC ...
E21B 44/00 (2013.01); E21B 45/00 (2013.01); E21B 47/007 (2020.05); E21B 49/003 (2013.01);
Abstract
Downhole casing temperature may be predicated at the drill string/casing interface as a function of side force on the casing due to drill string tension, the speed or rate of penetration of the drill string in the axial direction, the rate of rotation of the drill string, and a calibrated/assumed friction factor. Predicted down hole casing temperature may be used as a proxy to monitor casing integrity.