申请人:The Lubrizol Corporation
公开号:EP0647768A2
公开(公告)日:1995-04-12
The present invention relates to a method, comprising the steps of:
introducing into a well borehole a composition, comprising water, an acid, and (A) at least one reaction product of (A-1) at least one hydrocarbyl-substituted carboxylic acylating agent selected from the group consisting of a dicarboxylic acylating agent, a succinic acylating agent, a Diels-Alder diacid, a dimer acid acylating agent, a tricarboxylic acylating agent, a polycarboxylic acylating agent, or mixtures thereof, and (A-2) at least one amine-terminated polyoxyalkylene or (A-3) at least one hydroxy-terminated polyoxyalkylene having a number average molecular weight from about 600 to about 30,000, or a mixture of said (A-2) amine-terminated polyoxyalkylenes and (A-3) hydroxy-terminated polyoxyalkylenes. The reaction product (A) may be used alone, or in combination with one or more surfactants.
本发明涉及一种方法,包括以下步骤
将一种组合物引入井眼,该组合物包括水、酸和 (A-1) 至少一种烃基取代的羧酸酰化剂的至少一种反应产物,该反应产物选自二羧酸酰化剂、琥珀酸酰化剂、Diels-Alder 二酸、二聚酸酰化剂、三羧酸酰化剂或其混合物组成的组、(A-2)至少一种胺封端聚氧亚烷基或 (A-3) 至少一种羟基封端聚氧亚烷基,其平均分子量从约 600 到约 30,000 之间,或上述 (A-2) 胺封端聚氧亚烷基和 (A-3) 羟基封端聚氧亚烷基的混合物。反应产物(A)可单独使用,也可与一种或多种表面活性剂混合使用。