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    CROSSLINKING OF SWELLABLE POLYMER WITH PEI
    12.
    发明申请
    CROSSLINKING OF SWELLABLE POLYMER WITH PEI 审中-公开

    公开(公告)号：US20200095496A1

    公开(公告)日：2020-03-26

    申请号：US16694004

    申请日：2019-11-25

    Applicant: CONOCOPHILLIPS COMPANY ,  University of Kansas

    Inventor： Ahmad MORADI-ARAGHI ,  Min CHENG ,  Riley B. NEEDHAM ,  James H. HEDGES ,  Ramesh S. SARATHI ,  Faye L. SCULLY ,  Terry M. CHRISTIAN ,  Huili GUAN ,  Cory BERKLAND ,  Jenn-Tai LIANG

    IPC: C09K8/588 ,  E21B43/16 ,  E21B33/138

    Abstract: 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.

    SWELLABLE POLYMER WITH ANIONIC SITES
    15.
    发明申请
    SWELLABLE POLYMER WITH ANIONIC SITES 审中-公开
    易溶聚合物与阴离子网站

    公开(公告)号：US20140131043A1

    公开(公告)日：2014-05-15

    申请号：US14157902

    申请日：2014-01-17

    Applicant: University of Kansas ,  ConocoPhillips Company

    Inventor： Ahmad MORADI-ARAGHI ,  James H. HEDGES ,  David R. ZORNES ,  Riley B. NEEDHAM ,  Huili GUAN ,  Jenn-Tai LIANG ,  Cory BERKLAND ,  James P. JOHNSON ,  Min CHENG ,  Faye Lynn SCULLY

    IPC: C09K8/588 ,  E21B43/16

    CPC classification number: C09K8/588 ,  C09K8/12 ,  E21B43/16

    Abstract: The invention is directed to stable crosslinked water-soluble swellable polymers and methods for making same. More particularly, the invention relates to a composition comprising expandable polymeric particles having anionic sites and labile crosslinkers and stable crosslinkers, said particle mixed with a fluid and a cationic crosslinker that is capable of further crosslinking the particle on degradation of the labile crosslinker and exposure of the anionic sites so as to form a gel. A particularly important use is as an injection fluid in petroleum production, where the expandable polymeric particles are injected into target zone and when the heat and/or suitable pH of the target zone cause degradation of the labile crosslinker and the particle expands, the cationic crosslinker crosslinks the polymer to form a gel, thus diverting water to lower permeability regions and improving oil recovery.

    Abstract translation: 本发明涉及稳定的交联水溶性可溶胀聚合物及其制备方法。 更具体地说，本发明涉及包含具有阴离子位点和不稳定交联剂和稳定交联剂的可发性聚合物颗粒的组合物，所述颗粒与流体和阳离子交联剂混合，所述流体和阳离子交联剂能够在不稳定交联剂降解时进一步交联颗粒， 阴离子位点以形成凝胶。 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颗粒注入目标区域，并且当目标区域的热和/或合适的pH导致不稳定交联剂和颗粒膨胀时，阳离子交联剂 交联聚合物以形成凝胶，从而将水转移到较低渗透性区域并改善油回收率。

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