压裂液对致密油储层伤害评价实验研究

摘要

This paper focuses on the damage evaluation of fracturing fluid with NMR experiment and core flow test ,the damage from clay swelling ,migration ,water lock ,residual and filter cake have been evaluated separately to determine the main damage factors .The damage degree of various factors have been quantified ,which provides guidance for the optimization of fracturing fluid for tight oil reservoirs ,and further improve the adaptability and reduce the damage of fracturing fluid .%通过核磁共振实验和岩芯流动损害评价实验相结合,对某致密油区块开展了压裂液损害实验评价,实现对黏土吸水膨胀损害、黏土分散运移损害、水锁损害、残渣损害、滤饼损害等损害因素的单因素评价,确定了主要损害因素,量化了各因素的损害程度,对进一步提高致密油压裂液适应性、降低压裂液损害、优化致密油压裂液性能具有重要指导意义.