公开(公告)号：US11608391B2

公开(公告)日：2023-03-21

申请号：US17257839

申请日：2019-07-02

Applicant: RHODIA OPERATIONS

Inventor： Dominique Labarre ,  David James Wilson

IPC: C09K8/52 ,  C08F2/22 ,  C08F293/00 ,  C09K8/528 ,  C09K8/54 ,  C08F220/18

Abstract: Provided is a method making it possible to ensure a gradual release of polymer chains within a liquid medium, the method comprising bringing the liquid medium into contact with specific solid objects formed by polymer chains soluble in the medium and carrying hydrophobic side groups ensuring physical crosslinking between the polymer chains within the solid objects. The released chains may in particular be used as inhibitors of the formation of inorganic or organic deposits (scale inhibitors) within a liquid medium, typically in the field of oil extraction.

公开(公告)号：US20210395123A1

公开(公告)日：2021-12-23

申请号：US17281200

申请日：2019-09-16

Applicant: RHODIA OPERATIONS

Inventor： Dominique Labarre ,  Christopher Jones

IPC: C02F5/14 ,  C09K8/532

Abstract: A method may include treating a water system containing or in contact with a metal sulphide scale to inhibit, prevent, reduce, dissolve or disperse iron sulphide deposits. A solution of tris(hydroxyorgano)phosphines (THP) and/or tetrakis(hydroxyorgano)phosphonium salts (THP+salts) and citrate is contacted with the metal sulphide scale thereby to dissolve at least part of said scale in said solution.

公开(公告)号：US20150166876A1

公开(公告)日：2015-06-18

申请号：US14417197

申请日：2013-07-26

Applicant: RHODIA OPERATIONS

Inventor： Dominique Labarre ,  James Wilson

IPC: C09K8/524 ,  C09K8/528

CPC classification number: C09K8/524 ,  C08F22/385 ,  C08F220/06 ,  C09K8/52 ,  C09K8/528 ,  C09K2208/10 ,  C09K2208/26

Abstract: The invention relates to compositions for inhibiting the formation of deposits in underground formations such as oil wells, comprising, in a solvent medium, polymers P resulting from the radical copolymerisation, preferably controlled and in solution, of a mixture including: monomers having an ethylenically unsaturated structure, selected from monomers that form, by polymerisation, a polymer that has an effect of inhibiting the formation of organic and/or inorganic deposits; and polyethylenically unsaturated, cross-linking monomers carrying at least one group that can be cleaved between two ethylene unsaturations, said polymers P being present in the solvent in the form of dispersed nanogels.

Abstract translation: 本发明涉及用于抑制在地下地层（例如油井）中形成沉积物的组合物，其包括在溶剂介质中，由自由基共聚得到的聚合物P，优选受控并在溶液中，混合物包括：具有烯属不饱和单体 选自通过聚合形成具有抑制有机和/或无机沉积物形成的作用的聚合物的单体的结构; 和携带至少一个能够在两个乙烯不饱和键之间切割的基团的多烯属不饱和的交联单体，所述聚合物P以分散的纳米凝胶的形式存在于溶剂中。

公开(公告)号：US20210230471A1

公开(公告)日：2021-07-29

申请号：US17257839

申请日：2019-07-02

Applicant: RHODIA OPERATIONS

Inventor： Dominique Labarre ,  Dqvid James Wilson

IPC: C09K8/528 ,  C08F293/00 ,  C09K8/54

Abstract: The present invention relates to a method making it possible to ensure a gradual release of polymer chains within a liquid medium, said method comprising bringing said liquid medium into contact with specific solid objects formed by polymer chains soluble in the medium and carrying hydrophobic side groups ensuring physical crosslinking between said polymer chains within said solid objects.
The released chains may in particular be used as inhibitors of the formation of inorganic or organic deposits (scale inhibitors) within a liquid medium, typically in the field of oil extraction.

公开(公告)号：US10072202B2

公开(公告)日：2018-09-11

申请号：US14417197

申请日：2013-07-26

Applicant: RHODIA OPERATIONS

Inventor： Dominique Labarre ,  James Wilson

IPC: C09K8/52 ,  C09K8/524 ,  C08F22/38 ,  C08F220/06 ,  C09K8/528

CPC classification number: C09K8/524 ,  C08F22/385 ,  C08F220/06 ,  C09K8/52 ,  C09K8/528 ,  C09K2208/10 ,  C09K2208/26

Abstract: The invention relates to compositions for inhibiting the formation of deposits in underground formations such as oil wells, comprising, in a solvent medium, polymers P resulting from the radical copolymerization, preferably controlled and in solution, of a mixture including: monomers having an ethylenically unsaturated structure, selected from monomers that form, by polymerization, a polymer that has an effect of inhibiting the formation of organic and/or inorganic deposits; and polyethylenically unsaturated, cross-linking monomers carrying at least one group that can be cleaved between two ethylene unsaturations, said polymers P being present in the solvent in the form of dispersed nanogels.