深度酸压自生酸酸液体系研究

Study on the Self generated Acid Solution System of Deep Acid Fracturing

目前深层、超深层碳酸盐岩储层存在温度高和物性差等特点,常规酸压技术的酸岩反应速率过快,酸蚀裂缝导流能力低,无法实现深部酸压,储层改造效果差。针对此类问题,设计了一种新型自生酸酸液体系,并通过室内评价实验对酸液体系性能进行评价,结果表明自生酸酸液体系可有效实现深度酸压的目的。

At present,the deep and ultra deep carbonate reservoirs are characterized by high temperature and poor physical properties.The acid rock reaction rate of conventional acid fracturing technology is too fast,the conductivity of acid etched fractures is low,the deep acid fracturing cannot be realized,and the reservoir reconstruction effect is poor.In order to solve these problems,a new type of autogenic acid solution system was designed,and the performance of the acid solution system was evaluated through indoor evaluation experiments.The results show that the autogenic acid solution system can effectively achieve the goal of deep acid fracturing.