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:
May. 28, 2013
Filed:
Oct. 26, 2009
Applicants:
Tapantosh Chakrabarty, Calgary, CA;
Ken N. Sury, Calgary, CA;
Inventors:
Tapantosh Chakrabarty, Calgary, CA;
Ken N. Sury, Calgary, CA;
Assignee:
ExxonMobil Upstream Research Company, Houston, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G 21/30 (2006.01); C10G 21/14 (2006.01); C10G 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
In solvent-assisted bitumen extraction, a native marker, for example: sulfur, nickel, vanadium, iron copper, or manganese, is used to control the solvent to bitumen ratio in a process stream such as a stream from a froth separation unit (FSU) and/or to measure hydrocarbon loss in a tailings solvent recovery unit (TSRU).