-
公开(公告)号:US06579909B1
公开(公告)日:2003-06-17
申请号:US09666567
申请日:2000-09-20
申请人: Guy Chauveteau , René Tabary , Michel Renard , Aziz Omari
发明人: Guy Chauveteau , René Tabary , Michel Renard , Aziz Omari
IPC分类号: B01D2101
CPC分类号: C09K8/887 , C08J3/075 , C09K8/512 , C09K8/5756 , Y10S507/903
摘要: The present invention relates to a method for preparing microgels of controlled size. According to the method, a gelling composition comprising a polymer and a crosslinking additive intended for the polymer is injected into a porous and permeable medium, and a monodisperse solution of microgels of substantially constant size is recovered at the outlet. The invention also relates to an application of the method for reducing the permeability of porous and permeable formations of reservoir rock type.
摘要翻译: 本发明涉及一种制备受控尺寸的微凝胶的方法。 根据该方法,将包含聚合物和用于聚合物的交联添加剂的胶凝剂组合物注入多孔和可渗透介质中,并且在出口处回收基本恒定尺寸的微凝胶的单分散溶液。本发明还涉及一种 应用该方法降低储层岩石类型多孔渗透层的渗透性。