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:
Apr. 15, 2016
Applicant:
Total SE, Courbevoie, FR;
Inventors:
Christophe Urbanczyk, Pau, FR;
André Garnier, Montardon, FR;
Jean Sulem, Paris, FR;
Siavash Ghabezloo, Bry sur Marne, FR;
Nicolaine Agofack, Trondheim, NO;
Assignee:
TOTAL SE, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/00 (2006.01); G01N 33/38 (2006.01); E21B 47/005 (2012.01); E21B 47/117 (2012.01);
U.S. Cl.
CPC ...
G01N 33/383 (2013.01); E21B 47/005 (2020.05); E21B 47/117 (2020.05);
Abstract
The present invention relates to a method for determining a time window in which a casing pressure test can be performed without damaging a cement sheath. The time window is determined by: determining the hydration degree of the cement at a given time for a considered pressure and temperature values in the well; and then comparing the determined hydration degree to a predetermined value. If the determined hydration degree is below the predetermined value, then the casing pressure test can be done without damaging the cement.