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:
Jul. 18, 2023

Filed:

Oct. 04, 2021
Applicant:

Equinor Energy As, Stavanger, NO;

Inventors:

Michael Drescher, Trondheim, NO;

Torbjørn Fiveland, Skien, NO;

Olav Kristiansen, Trondheim, NO;

Thomas Levy, Skien, NO;

Knut Arild Maråk, Trondheim, NO;

Bengt Olav Neeraas, Trondheim, NO;

Per Ivar Karstad, Jonsvatnet, NO;

Assignee:

Equinor Energy AS, Stavanger, NO;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/16 (2006.01); E21B 43/40 (2006.01);
U.S. Cl.
CPC ...
E21B 43/164 (2013.01); E21B 43/40 (2013.01);
Abstract

Methods of Enhanced Oil Recovery (EOR) from an oil reservoir by COflooding are disclosed. One method comprises producing a well stream from the reservoir; separating the well stream into a liquid phase and a gas phase with a first gas/liquid separator, wherein the gas phase comprises both COgas and hydrocarbon gas; cooling the gas phase with a first cooler; compressing the gas phase using a first compressor into a compressed stream; mixing the compressed stream with an external source of COto form an injection stream; and injecting the injection stream into the reservoir. Systems for EOR from an oil reservoir by COflooding are also disclosed.


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