中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

26 records (took 0.027 seconds)

    Sequenced polymers for monitoring the filtrate
    1.
    发明授权
    Sequenced polymers for monitoring the filtrate 有权

    公开(公告)号：US10774258B2

    公开(公告)日：2020-09-15

    申请号：US15564801

    申请日：2016-04-06

    Applicant: RHODIA OPERATIONS

    Inventor： Arnaud Cadix ,  David James Wilson

    IPC: C09K8/76 ,  C09K8/46 ,  C08F261/04 ,  C08F291/00 ,  C08F293/00 ,  C08B37/00

    Abstract: The invention relates to a method for preparing a sequenced copolymer comprising a first block (A) connected to a second block (B), said method comprising the following steps of monitored radical polymerisation: (E1) bringing into contact, typically in an aqueous medium: unsaturated ethylene monomers mA, selected in order to constitute the block (A); a source of free radicals; and an agent for monitoring the radical polymerisation; and then (E2) bringing into contact: the polymer obtained from step (E1); unsaturated ethylene monomers mB; a source of free radicals; and a polymer P0 which is not ethylenically unsaturated and supports labile hydrogens.

    Treatment of underground formations with gels
    3.
    发明申请
    Treatment of underground formations with gels 审中-公开
    用凝胶处理地下地层

    公开(公告)号：US20150087565A1

    公开(公告)日：2015-03-26

    申请号：US14394886

    申请日：2013-04-18

    Applicant: RHODIA OPERATIONS

    Inventor： Arnaud Cadix ,  Chi-Thanh Vuong

    IPC: C09K8/42 ,  E21B33/138

    Abstract: The present invention relates to the formation of a gel within a medium M, in particular within an underground formation, which comprises the following steps: (EI) a basic compound C is added to a fluid latex L comprising dispersed particles of a polymer P, bearing ester side functions, said basic compound C being added in an amount suitable for hydrolysing at least one part of said ester side functions into carboxylic acid and/or alcohol functions, as a result of which a modified latex L′ is obtained, the viscosity of which gradually increases with time from the addition of the compound C up to the formation of a gel; then (E2) the resulting modified latex is introduced into the medium M before the formation of the gel and the gel is left to form within the medium M.

    Abstract translation: 本发明涉及在介质M内，特别是在地下地层内形成凝胶，其包括以下步骤：（EI）将碱性化合物C加入到包含聚合物P的分散颗粒的流体胶乳L中， 所述碱性化合物C以适于水解所述酯侧官能团的至少一部分功能的量加入到羧酸和/或醇官能团中，结果得到改性胶乳L'，粘度 随着时间的推移，从化合物C的添加到凝胶的形成逐渐增加; 然后（E2），在形成凝胶之前将得到的改性胶乳引入培养基M中，使凝胶在培养基M内形成。

    Preparation of amphiphilic block polymers by controlled radical micellar polymerisation
    7.
    发明授权
    Preparation of amphiphilic block polymers by controlled radical micellar polymerisation 有权
    通过受控自由基胶束聚合制备两亲嵌段聚合物

    公开(公告)号：US09580535B2

    公开(公告)日：2017-02-28

    申请号：US14353360

    申请日：2012-10-24

    Applicant: RHODIA OPERATIONS

    Inventor： James Wilson ,  Mathias Destarac ,  Arnaud Cadix

    IPC: C08F2/38 ,  C08F297/02 ,  C08F293/00 ,  C09K8/04 ,  C09K8/588 ,  C09K8/88

    CPC classification number: C08F297/026 ,  C08F2/38 ,  C08F293/005 ,  C08F2438/03 ,  C09K8/04 ,  C09K8/588 ,  C09K8/882

    Abstract: The present invention relates to the preparation of block copolymers, which can be used in particular as rheology agents, suitable, inter alia, for oil extraction, comprising a step of radical micellar polymerization wherein the following are brought into contact in an aqueous medium: —hydrophilic monomers, dissolved or dispersed in the aqueous medium; —hydrophobic monomers in the form of a micellar solution, i.e. containing, in a dispersed state, micelles comprising these hydrophobic monomers; —at least one radical polymerization initiator; and —at least one radical polymerization control agent. The polymers obtained according to the invention can be used in particular for enhanced oil recovery (EOR).

    Abstract translation: 嵌段共聚物的制备本发明涉及嵌段共聚物的制备，其可特别用作流变剂，特别适用于油提取，包括自由基胶束聚合步骤，其中使下列物质在水性介质中接触： 溶解或分散在水介质中的亲水单体; 以胶束溶液形式的疏水单体，即分散状态的包含这些疏水单体的胶束; - 至少一个自由基聚合引发剂; 和至少一种自由基聚合控制剂。 根据本发明获得的聚合物特别可用于增强油回收（EOR）。

    NOVEL AGENT FOR INHIBITING THE SWELLING OF CLAYS, COMPOSITIONS COMPRISING SAID AGENT AND METHODS IMPLEMENTING SAID AGENT
    8.
    发明申请
    NOVEL AGENT FOR INHIBITING THE SWELLING OF CLAYS, COMPOSITIONS COMPRISING SAID AGENT AND METHODS IMPLEMENTING SAID AGENT 有权
    抑制粘土破裂的新型代理，包含所述代理人的组合物和实施所述代理人的方法

    公开(公告)号：US20150041138A1

    公开(公告)日：2015-02-12

    申请号：US14377363

    申请日：2013-02-12

    Applicant: RHODIA OPERATIONS

    Inventor： Thierry Badel ,  Arnaud Cadix

    IPC: C09K8/68 ,  E21B7/00 ,  E21B43/26 ,  C09K8/28

    CPC classification number: C09K8/68 ,  C09K8/035 ,  C09K8/28 ,  C09K8/607 ,  C09K2208/12 ,  E21B7/00 ,  E21B43/26

    Abstract: The present invention concerns the use of a novel additive as an agent for inhibiting the swelling of clays, in particular in the field of boreholes. More specifically, the present invention concerns the use of a specific diamine and diacid salt as an agent for inhibiting the swelling of clays in an aqueous medium, and a drilling or hydraulic fracturing fluid composition comprising the salt according to the invention and methods for drilling or hydraulic fracturing implementing said salt.

    Abstract translation: 本发明涉及使用新型添加剂作为抑制粘土膨胀的试剂，特别是在钻孔领域。 更具体地说，本发明涉及特定的二胺和二酸盐作为抑制水性介质中粘土膨胀的试剂的用途，以及包含根据本发明的盐的钻井或水力压裂液组合物以及用于钻井或 水力压裂实施所述盐。

    Amphiphilic block polymers soluble in strongly saline medium
    10.
    发明授权
    Amphiphilic block polymers soluble in strongly saline medium 有权

    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.

Patent Agency Ranking