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.

Date of Patent:
Jan. 10, 2023

Filed:

Jul. 29, 2019
Applicant:

Locus Solutions Ipco, Llc, Solon, OH (US);

Inventors:

Sean Farmer, Ft. Lauderdale, FL (US);

Ken Alibek, Solon, OH (US);

Andrew R Lefkowitz, Solon, OH (US);

Karthik N Karathur, Solon, OH (US);

Martin R Shumway, Solon, OH (US);

Alibek Moldakozhayev, Solon, OH (US);

Assignee:

LOCUS SOLUTIONS IPCO, LLC, Solon, OH (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/138 (2006.01); C09K 8/584 (2006.01); E21B 43/16 (2006.01); E21B 43/20 (2006.01);
U.S. Cl.
CPC ...
C09K 8/584 (2013.01); E21B 33/138 (2013.01); E21B 43/164 (2013.01); E21B 43/20 (2013.01);
Abstract

The present invention provides compositions and methods for enhancing oil recovery from low permeability subterranean formation using three mechanisms: repressurization; reduction of interfacial tension; and increased permeability. The subject compositions comprise a chelating agent, a biosurfactant, a carbonate or bicarbonate salt, water, and a pH adjusting substance, which when applied to an oil-bearing formation according to the methods of the subject invention, allow for controlled release of carbon dioxide within the formation without complicated machinery or gas-producing microorganisms.


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