公开(公告)号：US3658129A

公开(公告)日：1972-04-25

申请号：US3658129D

申请日：1970-09-01

Applicant: PHILLIPS PETROLEUM CO

Inventor： LANNING WILLIAM C ,  GALL JAMES W

IPC: C09K8/512 ,  E21B33/138 ,  E21B43/20

CPC classification number: C09K8/512

Abstract: A method for plugging waterflood zones through the in situ production of gelatinous materials derived from injecting a solution containing a water-soluble bivalent metal salt and a water-soluble polymer of high molecular weight having groups chemically reactive with trivalent metal ions into a waterflood zone followed by the injection of air which converts bivalent metal ions to trivalent metal ions thereby resulting in the aforementioned gelatinous plugging material.

Abstract translation: 通过原位生产凝胶状材料来堵塞注水区域的方法，其通过将含有水溶性二价金属盐和具有与三价金属离子化学反应的基团的具有高分子量的水溶性聚合物的溶液注入到水驱区中而得到， 通过注入将二价金属离子转化为三价金属离子的空气，由此导致上述凝胶状堵塞材料。