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    AMPHIPHILIC BLOCK POLYMERS SOLUBLE IN STRONGLY SALINE MEDIUM
    1.
    发明申请
    AMPHIPHILIC BLOCK POLYMERS SOLUBLE IN STRONGLY SALINE MEDIUM 审中-公开

    公开(公告)号：US20180312621A1

    公开(公告)日：2018-11-01

    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 ,  C09K8/68 ,  C09K8/588

    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.

    Viscosifier agent for oilfield fluids in hard conditions
    2.
    发明申请
    Viscosifier agent for oilfield fluids in hard conditions 审中-公开
    油田液体在恶劣条件下的粘度剂

    公开(公告)号：US20160257873A1

    公开(公告)日：2016-09-08

    申请号：US15028172

    申请日：2014-10-15

    Applicant: RHODIA OPERATIONS

    Inventor： Arnaud CADIX

    IPC: C09K8/68 ,  C09K8/88

    CPC classification number: C09K8/685 ,  C09K8/035 ,  C09K8/04 ,  C09K8/508 ,  C09K8/512 ,  C09K8/5751 ,  C09K8/5756 ,  C09K8/584 ,  C09K8/604 ,  C09K8/882 ,  C09K8/887 ,  C09K2208/30

    Abstract: The invention relates to aviscosifier useful for oilfield fluids, especially high TDS fluids and heavy brines, comprising: at least a zwitterionic polymer, prepared by inverse emulsion polymerization of: monomers A comprising a betaine group; nonionic monomers B monomers C including a metal ion crosslinkable group with a molar ratio of the monomers A to the monomers B between 4/96 and 40/60; and at least a metal ion compound leading to the crosslinking of the groups carried by monomers C.

    Abstract translation: 本发明涉及可用于油田液体，特别是高TDS流体和重盐水的涡旋增效剂，其包含：至少两相离子聚合物，其通过反相乳液聚合制备：单体A，其包含甜菜碱基; 包括单体A与单体B的摩尔比在4/96和40/60之间的金属离子可交联基团的非离子单体B单体C; 和至少一种导致由单体C携带的基团交联的金属离子化合物。

    GELLED AQUEOUS COMPOSITION FOR OIL EXTRACTION
    3.
    发明申请
    GELLED AQUEOUS COMPOSITION FOR OIL EXTRACTION 有权

    公开(公告)号：US20210115165A1

    公开(公告)日：2021-04-22

    申请号：US17041532

    申请日：2019-04-10

    Applicant: RHODIA OPERATIONS

    Inventor： Arnaud CADIX ,  David James WILSON

    IPC: C08F2/26 ,  C09K8/508

    Abstract: The present invention relates to the field of oil extraction. More specifically, it relates to a particular polymerization process, which provides access to formulations of polymers that may be used in particular for modifying rheology and fluid loss control during extraction operations and that have a better heat stability.

    CLAY-SWELLING INHIBITOR, COMPOSITIONS COMPRISING SAID INHIBITOR AND PROCESSES USING SAID INHIBITOR
    5.
    发明申请
    CLAY-SWELLING INHIBITOR, COMPOSITIONS COMPRISING SAID INHIBITOR AND PROCESSES USING SAID INHIBITOR 审中-公开
    粘合抑制剂，包含抑制剂的组合物和使用抑制剂的方法

    公开(公告)号：US20150344765A1

    公开(公告)日：2015-12-03

    申请号：US14377359

    申请日：2013-02-12

    Applicant: RHODIA OPERATIONS

    Inventor： Thierry BADEL ,  Arnaud CADIX

    IPC: C09K8/28 ,  E21B43/26 ,  E21B21/16 ,  E21B21/06 ,  C09K8/86 ,  C09K8/52

    CPC classification number: C09K8/28 ,  C09K8/035 ,  C09K8/52 ,  C09K8/607 ,  C09K8/68 ,  C09K8/86 ,  C09K2208/12 ,  E21B21/062 ,  E21B21/16 ,  E21B43/26

    Abstract: The use of an additive as a clay-swelling inhibitor, especially in the field of drilling is described. More specifically, the use of 2-methylpentane-1,5-diamine or an organic or inorganic salt of 2-methylpentane-1,5-diamine as an inhibitor of the swelling of clays in an aqueous medium is described. Also described is a drilling fluid composition or hydraulic fracturing fluid composition including 2-methylpentane-1,5-diamine or an organic or inorganic salt thereof and drilling or hydraulic fracturing processes using the compositions.

    Abstract translation: 描述了使用添加剂作为粘土膨胀抑制剂，特别是在钻井领域。 更具体地说，描述了在水性介质中使用2-甲基戊烷-1,5-二胺或2-甲基戊烷-1,5-二胺的有机或无机盐作为粘土溶胀的抑制剂。 还描述了包括2-甲基戊烷-1,5-二胺或其有机或无机盐的钻井液组合物或水力压裂液组合物，以及使用该组合物的钻井或水力压裂方法。

    STABILIZED FRICTION REDUCER EMULSIONS
    10.
    发明申请
    STABILIZED FRICTION REDUCER EMULSIONS 有权

    公开(公告)号：US20220177774A1

    公开(公告)日：2022-06-09

    申请号：US17436848

    申请日：2020-03-11

    Applicant: RHODIA OPERATIONS

    Inventor： Helène MARTIN ,  Patrick MOREAU ,  Arnaud CADIX

    IPC: C09K8/68 ,  C09K8/60

    Abstract: The instant invention friction reducer formulation comprising friction reducer polymers such as PAM within the dispersed phase of an inverse emulsion containing a composition C which comprises a mixture of: —at least an alkanolamide emulsifier; and —a block copolymer comprising: —a hydrophilic block A comprising units deriving from a mono-alpha-ethylenically-unsaturated monomers; and —a hydrophobic block B.

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