公开(公告)号：US10745298B2

公开(公告)日：2020-08-18

申请号：US15839231

申请日：2017-12-12

Applicant: IFP Energies nouvelles

Inventor： Jean-Francois Argillier ,  Antoine Benoit ,  Isabelle Henaut

IPC: C02F1/44 ,  G01N11/02 ,  G01N33/24 ,  B01D69/02 ,  B01D71/02 ,  B01D71/06 ,  C09K8/584 ,  C10G49/22 ,  G01N13/02 ,  C10G33/00 ,  B01D17/00 ,  B01D17/12 ,  C02F103/36 ,  G01N11/00 ,  C02F101/32 ,  E21B43/16

Abstract: The present invention relates to a method for treating an aqueous liquid comprising oil droplets and a surfactant and/or a base. For this method, a pore size threshold of a filter is determined taking into account the interfacial tension between the oil droplets and the water, and a filter is selected whose pore size is less than or equal to this threshold for filtration of the aqueous liquid.

公开(公告)号：US12037543B2

公开(公告)日：2024-07-16

申请号：US17416795

申请日：2019-12-10

Applicant: IFP Energies nouvelles

Inventor： Anne Sinquin ,  Bruno Delfort ,  Yves Benoit ,  Isabelle Henaut ,  Celine Bouvry ,  Laurence Podesta-Foley

IPC: C09K8/588 ,  B01D17/02 ,  B01D17/04 ,  C02F9/00 ,  E21B43/20 ,  E21B43/34 ,  C02F1/38 ,  C02F1/66 ,  C02F1/68 ,  C02F101/32 ,  C02F103/10

CPC classification number: C09K8/588 ,  B01D17/0217 ,  B01D17/047 ,  C02F9/00 ,  E21B43/20 ,  E21B43/34 ,  C02F1/38 ,  C02F1/66 ,  C02F1/682 ,  C02F2101/32 ,  C02F2103/10

Abstract: A process treats production water resulting from enhanced oil recovery, the production water comprising an aqueous phase and an organic phase dispersed in the aqueous phase, and at least one polymer in the aqueous phase. The process includes:



a step of bringing said production water into contact with an additive comprising at least one tetrakis(hydroxymethyl)phosphonium salt (THMP salt),
a step of separating the aqueous phase and the organic phase of said production water comprising said additive, by means of a hydrocyclone.

An enhanced recovery process uses a step of treating the production water according to the invention.