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:
Jan. 20, 1987
Filed:
May. 03, 1985
Laurier L Schramm, Edmonton, CA;
Alberta Energy Company Ltd., Calgary, CA;
Canadian Occidental Petroleum Ltd., Calgary, CA;
Esso Resources Canada Limited, Calgary, CA;
Gulf Canada Limited, Toronto, CA;
Her Majesty the Queen, in right of the Province of Alberta, as, , US;
HBOG-Oil Sands Limited Partnership, Calgary, CA;
PanCanadian Petroleum Limited, Calgary, CA;
Petro-Canada Inc., Calgary, CA;
Abstract
The hot water process is controlled in response to viscosity measurements taken in situ in the middlings in the primary separation vessel. The viscosity in the middlings is found to vary. Therefore, the layer of maximum viscosity is located and the viscosity at this depth is monitored. Adjustments are made to the process to keep this maximum viscosity below a pre-determined limit.