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:
May. 22, 2018

Filed:

Sep. 30, 2014
Applicant:

Maersk Olie Og Gas A/s, Copenhagen, DK;

Inventors:

Martin Vad Bennetzen, Copenhagen, DK;

Kristian Mogensen, Copenhagen, DK;

Assignee:

MAERSK OLIE OG GAS A/S, Copenhagen, DK;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/20 (2006.01); C02F 1/48 (2006.01); B03C 1/01 (2006.01); C02F 1/68 (2006.01); B03C 1/033 (2006.01); B03C 1/28 (2006.01); B03C 1/02 (2006.01); C02F 3/34 (2006.01); C02F 103/02 (2006.01); C02F 103/08 (2006.01);
U.S. Cl.
CPC ...
C02F 1/488 (2013.01); B03C 1/01 (2013.01); B03C 1/02 (2013.01); B03C 1/0332 (2013.01); B03C 1/288 (2013.01); C02F 1/683 (2013.01); E21B 43/20 (2013.01); B03C 2201/18 (2013.01); C02F 3/345 (2013.01); C02F 2103/02 (2013.01); C02F 2103/08 (2013.01); C02F 2303/08 (2013.01); C02F 2303/16 (2013.01); C02F 2303/20 (2013.01); C02F 2305/08 (2013.01);
Abstract

A method of depleting the bacterial content in a water source is provided. The method involves depleting the bacterial content in a water source for a water flooding process, said method comprising contacting a water source with a superparamagnetic or paramagnetic nanoparticle; complexing the bacteria with the particle; and removing the bacteria-particle complex by applying a magnetic field so as to provide a water source with depleted bacterial content. The depleted water can then be pumped into one or more connecting injection well(s) in an oil field pushing the crude oil towards one or more production well(s) thereby allowing for enhanced oil recovery from the production wells.


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