砂岩基质酸化酸液体系发展现状及展望

Development Status and Prospect of Acidizing Fluid System for Sandstone Matrix Acidification

基质酸化是砂岩油气藏增产增注的重要措施之一,由于砂岩储层所含矿物成分复杂,目前所有用于砂岩基质酸化的主体酸液体系中均含有氢氟酸或其原始化合物。概述了砂岩基质酸化目前所使用的酸液体系,并分析了不同酸液体系的特性,随着对砂岩储层勘探开发力度的加大,对酸液体系的发展做出了新的展望。

Matrix acidification is one of important measures to increase production and injection. As complex mineral composition contained in sandstone reservoir complex, all current for the main body of sandstone matrix acidizing systems contains hydrofluoric acid or its original compound. The paper outlines acidizing fluid system used in sandstone matrix acidification, and analyzes the characteristics of different acidizing systems. With the development of the sandstone reservoir exploration, the paper makes a new outlook.