砂岩酸化非常规土酸酸液综述

Summarize unconventional acidizing fluid compared to mud acid in sandstone formation

杨永华 胡丹 林立世

Yang Yonghua Hu Dan Lin Lishi

中国石化西南分公司石油工程技术研究院, 四川德阳 618000; 中国石化西南分公司物资供应中心, 四川德阳 618000

Engineering Technology Institute of Southwest Petroleum Branch, SINOPEC, Deyang 618000, China; Material Providing Center of Southwest Petroleum Branch, SINOPEC, Deyang 618000, China

文章较全面地介绍了用于砂岩酸化非常规土酸酸液体系,包括:氟硼酸酸化、磷酸酸化、硝酸酸化、5H+酸酸化、氟硅酸酸化、顺序注盐酸—氟化铵酸化、自生土酸酸化、缓冲调节土酸酸化、有机酸—土酸酸化、铝盐缓速酸化。对各种酸液体系的原理、特点及现场应用情况作了不同程度的论述。

The article comprehensively summarizes unconventional acidizing fluid compared to mud acid in sandstone formation, including fluorin boric acid, phosphoric acid, nitric acid, 5H+ acid, flio-silicic acid, sequential mud acid, in-situ generation of HF, buffer-regulated hydrofluoric acid systems, alcoholic mud acid, and mud acid plus aluminum chloride for retardation. The principles, characteristics and the application of various acidizing fluid system have been discussed in various degrees in the paper.