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    CROSSLINKING OF SWELLABLE POLYMER WITH PEI
    2.
    发明公开
    CROSSLINKING OF SWELLABLE POLYMER WITH PEI 审中-公开
    VERNETZUNG EINESQUELLFÄHIGENPOLYMERS MIT PEI

    公开(公告)号：EP2922878A4

    公开(公告)日：2016-05-25

    申请号：EP13856552

    申请日：2013-11-22

    申请人： CONOCOPHILLIPS CO ,  UNIV KANSAS

    发明人： MORADI-ARAGHI AHMAD ,  CHENG MIN ,  NEEDHAM RILEY B ,  HEDGES JAMES H ,  SARATHI RAMESH S ,  SCULLY FAYE L ,  CHRISTIAN TERRY M ,  GUAN HUILI ,  BERKLAND CORY ,  LIANG JENN-TAI

    IPC分类号： C09K8/588 ,  C08C19/22

    CPC分类号： C09K8/588 ,  E21B33/138 ,  E21B43/16

    摘要： The invention is directed to stable and labile crosslinked water swellable polymeric microparticles that can be further gelled, methods for making same, and their various uses in the hygiene and medical arts, gel electrophoresis, packaging, agriculture, the cable industry, information technology, in the food industry, papermaking, use as flocculation aids, and the like. More particularly, the invention relates to a composition comprising expandable polymeric microparticles having labile crosslinkers and stable crosslinkers, said microparticle mixed with a fluid and an unreacted tertiary crosslinker comprising PEI or other polyamine based tertiary crosslinker that is capable of further crosslinking the microparticle on degradation of the labile crosslinker and swelling of the particle, so as to form a stable gel. A particularly important use is as an injection fluid in petroleum production, where the expandable polymeric microparticles are injected into a well and when the heat and/or pH of the well cause degradation of the labile crosslinker and when the microparticle expands, the tertiary crosslinker crosslinks the polymer to form a stable gel, thus diverting water to lower permeability regions and improving oil recovery.

    摘要翻译： 本发明涉及可以进一步凝胶化的稳定和不稳定的交联水溶胀性聚合物微粒，其制备方法及其在卫生和医学领域，凝胶电泳，包装，农业，电缆工业，信息技术， 食品工业，造纸，用作絮凝助剂等。 更具体地说，本发明涉及包含具有不稳定交联剂和稳定交联剂的可膨胀聚合物微粒的组合物，所述微粒与流体混合，以及包含PEI或其它聚胺基三级交联剂的未反应的叔交联剂，其能够在降解 不稳定的交联剂和颗粒的溶胀，从而形成稳定的凝胶。 特别重要的用途是作为石油生产中的注入流体，其中将可发性聚合物微粒注入井中，并且当井的热和/或pH引起不稳定交联剂的降解时，并且当微粒膨胀时，三价交联剂交联 聚合物形成稳定的凝胶，从而将水转移到渗透率较低的区域，并提高油的回收率。