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:
Feb. 27, 2018

Filed:

Sep. 17, 2009
Applicants:

Torbjørn Tenold Eikaas, Indre Arna, NO;

Jan Erik Solbakken, Fyllingsdalen, NO;

Egil Sunde, Sandnes, NO;

Inventors:

Torbjørn Tenold Eikaas, Indre Arna, NO;

Jan Erik Solbakken, Fyllingsdalen, NO;

Egil Sunde, Sandnes, NO;

Assignees:

SCHLUMBERGER NORGE AS, Tananger, NO;

Statoil ASA, Stavanger, NO;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/06 (2006.01); C09K 8/588 (2006.01); E21B 43/20 (2006.01); B01F 3/12 (2006.01); C02F 1/68 (2006.01); F17D 1/17 (2006.01); C02F 1/56 (2006.01);
U.S. Cl.
CPC ...
E21B 21/06 (2013.01); B01F 3/1271 (2013.01); C02F 1/685 (2013.01); C09K 8/588 (2013.01); E21B 21/062 (2013.01); E21B 43/20 (2013.01); F17D 1/17 (2013.01); C02F 1/56 (2013.01); C02F 2209/09 (2013.01);
Abstract

A water injection system that includes a primary water injection line; an injection fluid supply tank; a high pressure injection pump in fluid communication with the injection fluid supply and primary water injection line for pumping injection fluid in injection fluid supply tank through the primary water injection line; a polymer gel supply tank; and a high pressure chemical injection pump in fluid communication with the polymer gel supply tank and the water injection line configured to pump polymer gel having a viscosity of at least about 50,000 cP (at 20° C. measured using a Bohlin Rheometer CSR 50, cone and plate measuring system CP 4°/40 mm, single shear rate 1/s) in the polymer gel supply tank into the water injection line for mixture with injection fluid is disclosed.


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