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. 10, 2021
Filed:
Aug. 26, 2016
Applicant:
Statoil Petroleum As, Stavanger, NO;
Inventors:
Åsmund Hjulstad, Bru, NO;
Jan Ove Brevik, Bergen, NO;
Assignee:
STATOIL PETROLEUM AS, Stavanger, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/14 (2006.01); E21B 47/005 (2012.01); E21B 47/07 (2012.01); E21B 47/06 (2012.01);
U.S. Cl.
CPC ...
E21B 47/005 (2020.05); E21B 33/14 (2013.01); E21B 47/06 (2013.01); E21B 47/07 (2020.05);
Abstract
A method of measuring the viscosity of cement slurry used for a primary cementing of an oil or gas well includes pumping the cement slurry along a conduit to a cementing location, measuring a first pressure loss along a first, horizontal portion of the conduit and a second pressure loss along a second, vertical portion of the conduit, and calculating a viscosity of the cement slurry based at least in part on the first and second pressure losses and a flow rate of the cement slurry.