对砂岩储层土酸处理后的伤害分析及处理措施

Damage Analyse and Treatment After Acidizing Sandstone Formation

酸化工艺是砂岩储层重要的增产增注措施之一,得到越来越广泛的应用,但随着酸液及其添加剂注入地层,在溶解储层矿物的同时,也溶解出许多易形成沉淀的离子,这些离子在一定条件下将产生沉淀,给储层造成新的伤害。本文分析了对砂岩储层实施酸化工艺后的各种伤害及相应的处理措施。

Acidizing technology is one of the most important measure of increase production , and using widely now. But following acidizing fluid and other go into formation , when it dissolve mineral , also dissolve other hydronium additive that can produce precipitation ,under some condition ,it will do damage to formation . This paper analyse the damage and appropriate treatment after acidizing sandstone formation.