The tests using a series of clay stabilizers on clay expanding and core flowing showed that the most suitable cl ay stabilizer composition for water injection wells in Zhangdian Oilfield was 2% JJA+2%NH 4Cl.

• 对一系列粘土稳定剂进行粘土防膨和岩芯流动试验 ,筛选出适合张店油田注水井的最佳粘土稳定剂配方为 2%25JJA +2 %25NH4Cl。