【Key words】 Sandstone； Acidizing； Acidizing effect； Acid additive； Temporary plugging agent； Selective plugging；
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improve the acidizing effect 提高酸化效果
The combined method of oxidizing and acidizing is recommended for plugging removal, so as to improve the acidizing effect.
建议采用氧化和酸化复合解堵方法，以提高酸化效果。
This method can overcome the limitation occurred by single evaluation method and meet the need of fine evaluation of acidizing effect.
综合评价可以克服酸化效果单一评价的局限性，并可满足对酸化效果精细评价的需求。
Acidizing technology is key method of stimulate and stable yields to sandstone reservoir and choosing the feasible acidizing fluid is the important factor of acidizing effect.
酸化技术是砂岩储层增产、稳产的主要措施手段，而合理的酸液体系选择往往是影响最终酸化效果的重要因素。
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