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. 02, 2024

Filed:

Mar. 19, 2020
Applicant:

Eni S.p.a., Rome, IT;

Inventors:

Davide Moscatelli, Arese, IT;

Lucilla Del Gaudio, San Donato Milanese, IT;

Paola Albonico, San Donato Milanese, IT;

Alessandra Belloni, San Donato Milanese, IT;

Alberto Cesana, Verano Brianza, IT;

Assignee:

ENI S.P.A., Rome, IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/502 (2006.01); C09K 8/516 (2006.01); C09K 8/588 (2006.01); E21B 43/20 (2006.01);
U.S. Cl.
CPC ...
C09K 8/502 (2013.01); C09K 8/516 (2013.01); C09K 8/588 (2013.01); E21B 43/20 (2013.01);
Abstract

A method for inhibiting water permeation in an extraction well of a hydrocarbon fluid from an underground reservoir may include: supplying a water-in-oil emulsion including an oily continuous phase and an aqueous discontinuous phase containing a plurality of particles of at least one hydrogel containing a cationic polymer; and positioning the water-in-oil emulsion in contact with the underground reservoir. A treatment fluid for hydrocarbon fluid extraction wells may contain a water-in-oil emulsion including an oily continuous phase and an aqueous discontinuous phase containing a plurality of particles of at least one hydrogel containing a cationic polymer.


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