公开(公告)号：US20160137906A1

公开(公告)日：2016-05-19

申请号：US14847734

申请日：2015-09-08

Applicant: CONOCOPHILLIPS COMPANY ,  University of Kansas

Inventor： Huili GUAN ,  Cory BERKLAND ,  Ahmad MORADI-ARAGHI ,  Jenn-Tai LIANG ,  Terry M. CHRISTIAN ,  Riley B. Needham ,  Min CHENG

IPC: C09K8/588 ,  E21B43/16

CPC classification number: C09K8/588 ,  C09K8/50 ,  C09K8/512

Abstract: The disclosure is directed to methods and compositions delaying the gelation of polymers in water flooding by sequentially or co-injecting a carboxylate-containing polymer solution, a gel-delaying polymer, and gelation agent into a hydrocarbon reservoir. Delays of weeks are observed.

Abstract translation: 本公开涉及通过将含羧酸盐的聚合物溶液，凝胶延迟聚合物和凝胶化剂顺序地或共同注入到烃储存器中来延缓聚合物在水驱中凝胶化的方法和组合物。 观察到几周的延误。

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。