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:
Feb. 14, 2023
Filed:
Mar. 15, 2019
Applicant:
Sasol Performance Chemicals Gmbh, Hamburg, DE;
Inventors:
Thu Nguyen, Westlake, LA (US);
Renke Rommerskirchen, Hamburg, DE;
Jorge Fernandez, Westlake, LA (US);
Assignee:
Sasol Chemicals GmbH, Hamburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/24 (2006.01); C09K 8/584 (2006.01); C09K 8/592 (2006.01); C09K 8/594 (2006.01);
U.S. Cl.
CPC ...
C09K 8/584 (2013.01); C09K 8/592 (2013.01); C09K 8/594 (2013.01); E21B 43/24 (2013.01);
Abstract
Recovering heavy oil from a subterraneous formation penetrated by at least one injection well and one production well, by injecting into the injection well a mixture of steam and an alkyl alkoxylated carboxylate salt, increasing the apparent viscosity of the steam while at the same time lowering the steam mobility, and recovering oil from the subterranean formation.