公开(公告)号：US5003006A

公开(公告)日：1991-03-26

申请号：US255093

申请日：1988-10-07

申请人： A. S. Chu ,  Harold S. Chung ,  Dennis H. Hoskin ,  Thomas O. Mitchell ,  Paul Shu

发明人： A. S. Chu ,  Harold S. Chung ,  Dennis H. Hoskin ,  Thomas O. Mitchell ,  Paul Shu

IPC分类号： C09K8/508 ,  C09K8/512 ,  C09K8/514 ,  C09K8/588 ,  C09K8/88 ,  C09K8/90

CPC分类号： C09K8/887 ,  C09K8/5083 ,  C09K8/512 ,  C09K8/514 ,  C09K8/588 ,  C09K8/905

摘要： The permeability of a subterranean oil-bearing formation is controlled by the injection of an aqueous solution of a cross-linked block copolymer containing polar and non-polar segments, with the polar segments generally making up as least 50 percent, usually 60 to 99 percent, of the copolymer. The polar segments are derived from an alkylene oxide and the non-polar segments from styrene or an alkyl styrene either by itself or with a diene. The copolymers are cross-linked with an amino resin or a combination of a phenolic and a water-dispersible aldehyde component. The resulting copolymer gels are stable at low pH conditions, such as those of CO.sub.2 flood conditions.

摘要翻译： 通过注入含有极性和非极性链段的交联嵌段共聚物的水溶液来控制地下含油层的渗透性，极性链段通常占组合物的50％，通常为60-99％ 的共聚物。 极性链段由环氧烷和非极性链段由苯乙烯或烷基苯乙烯衍生自己或用二烯衍生。 共聚物与氨基树脂或酚和水分散性醛组分的组合交联。 所得共聚物凝胶在低pH条件下，例如二氧化碳淹没条件下是稳定的。

公开(公告)号：US4776398A

公开(公告)日：1988-10-11

申请号：US31736

申请日：1987-04-30

申请人： A. S. Chu ,  Harold S. Chung ,  Dennis H. Hoskin ,  Thomas O. Mitchell ,  Paul Shu

发明人： A. S. Chu ,  Harold S. Chung ,  Dennis H. Hoskin ,  Thomas O. Mitchell ,  Paul Shu

IPC分类号： C09K8/50 ,  C09K8/508 ,  C09K8/512 ,  C09K8/514 ,  C09K8/588 ,  C09K8/60 ,  C09K8/88 ,  C09K8/90 ,  E21B43/16

CPC分类号： C09K8/887 ,  C09K8/5083 ,  C09K8/512 ,  C09K8/514 ,  C09K8/588 ,  C09K8/905 ,  Y10S507/903 ,  Y10S507/935

摘要： The permeability of a subterranean oil-bearing formation is controlled by the injection of an aqueous solution of a cross-linked block copolymer containing polar and non-polar segments, with the polar segments generally making up at least 50 percent, usually 60 to 99 percent, of the copolymer. The polar segments are derived from an alkylene oxide and the non-polar segments from styrene or an alkyl styrene either by itself or with a diene. The copolymers are cross-linked with an amino resin or a combination of a phenolic and a water-dispersible aldehyde component. The resulting copolymer gels are stable at low pH conditions, such as those of CO.sub.2 flood conditions.

摘要翻译： 通过注入含有极性和非极性链段的交联嵌段共聚物的水溶液来控制地下含油层的渗透性，极性链段通常占组合物的至少50％，通常为60-99％ 的共聚物。 极性链段由环氧烷和非极性链段由苯乙烯或烷基苯乙烯衍生自己或用二烯衍生。 共聚物与氨基树脂或酚和水分散性醛组分的组合交联。 所得共聚物凝胶在低pH条件下，例如二氧化碳淹没条件下是稳定的。