公开(公告)号：US10808064B2

公开(公告)日：2020-10-20

申请号：US15770352

申请日：2016-10-21

Applicant: RHODIA OPERATIONS

Inventor： David James Wilson ,  Mikel Morvan ,  Max Chabert ,  Arnaud Cadix

IPC: C08F293/00 ,  C08F212/08 ,  C09K8/588 ,  C09K8/68 ,  C08F220/18

Abstract: The present invention relates to the preparation of polymers that are of use in particular as a rheology agent, and are suitable for use in very concentrated saline media, which comprises a step of micellar radical polymerization in which are brought into contact, in an aqueous medium: —hydrophilic monomers; —hydrophobic monomers in the form of a micellar solution, containing micelles comprising these hydrophobic monomers; —a radical polymerization initiator; and —preferably an agent for controlling radical polymerization, wherein said micelles comprise at least one surfactant of amphoteric nature. The polymers obtained according to the invention are in particular of use for enhanced oil recovery.

公开(公告)号：US11999903B2

公开(公告)日：2024-06-04

申请号：US17620896

申请日：2020-06-16

Applicant: RHODIA OPERATIONS ,  IFP Energies Nouvelles

Inventor： Eloise Chevallier ,  Mikel Morvan

IPC: E21B43/16 ,  C09K8/584 ,  C09K8/594

CPC classification number: C09K8/594 ,  C09K8/584 ,  E21B43/166

Abstract: The invention relates to a composition which comprises within an aqueous medium: —at least one ethoxylated alkylamine; and—at least one amphoteric or zwitterionic surfactant. The invention further relates to the use of said compositions as foaming compositions, in particular for EOR (enhanced oil recovery).

公开(公告)号：US20220356392A1

公开(公告)日：2022-11-10

申请号：US17620896

申请日：2020-06-16

Applicant: RHODIA OPERATIONS ,  IFP Energies Nouvelles

Inventor： Eloise Chevallier ,  Mikel Morvan

IPC: C09K8/594 ,  C09K8/584 ,  E21B43/16

Abstract: The invention relates to a composition which comprises within an aqueous medium: —at least one ethoxylated alkylamine; and—at least one amphoteric or zwitterionic surfactant. The invention further relates to the use of said compositions as foaming compositions, in particular for EOR (enhanced oil recovery).

公开(公告)号：US11384278B2

公开(公告)日：2022-07-12

申请号：US16771029

申请日：2018-12-13

Applicant: RHODIA OPERATIONS

Inventor： Vincent Miralles ,  Mikel Morvan ,  David-James Wilson

IPC: E21B43/16 ,  C09K8/588 ,  C09K8/584

Abstract: An aqueous formulation for enhanced oil recovery may include at least one surfactant and at least one associative polymer. The associative polymer may be obtained by micellar radical polymerization by bringing into contact, in an aqueous medium, hydrophilic monomer dissolved in the aqueous medium, hydrophobic monomers in the form of a micellar solution, at least one radical polymerization initiator, and preferably at least one radical polymerization control agent.

公开(公告)号：US11028315B2

公开(公告)日：2021-06-08

申请号：US16091227

申请日：2017-03-30

Applicant: RHODIA OPERATIONS

Inventor： Olivier Back ,  Philippe Marion ,  Mikel Morvan

IPC: C09K8/584 ,  C07C229/12 ,  C07C309/14 ,  E21B43/16

Abstract: The instant invention relates to surfactants having the following formula (I) wherein: each of Ra and Rb is a linear or branched, saturated or unsaturated, hydrocarbon chain, each of Rc and Rd is a alkyl chain having 1 to 10 carbon atoms, each of (E1) and (E2) is a divalent hydrocarbon radical, A is: a group a carboxylate group —COO− (optionally in all or part in the form —COOH); or a sulfonate group —SO3− (optionally in all or part in the form —SO3H). The invention also relate to the preparation of these surfactants and their use in oil extraction, especially in EOR applications.

公开(公告)号：US09598629B2

公开(公告)日：2017-03-21

申请号：US14373648

申请日：2013-01-25

Applicant: RHODIA OPERATIONS ,  INSTITUT FRANCAIS DU PETROLE

Inventor： Mikel Morvan ,  Patrick Moreau ,  René Tabary ,  Brigitte Bazin

IPC: E21B43/16 ,  E21B43/22 ,  C09K8/584

CPC classification number: C09K8/584 ,  E21B43/16

Abstract: Provided is a process of enhanced oil recovery from an oil reservoir of an underground formation by using a compound of formula (I) to inhibit the phenomena of retention of anionic surfactants within an oil-bearing reservoir, such as a carbonate or clay reservoir: R—O—(—CH2—CH(—CH3)—O—)m—(—CH2—CH2—O—)n—H, wherein: R is a hydrocarbon-based group comprising from 6 to 40 carbons; m ranges from 0 to 20; n is greater than m and ranges from 5 to 40.