APPLICATION OF PCT SERIES FORMATION ADDITIVES IN QIAOKOU OILFIELD

In order to remove oil-bearing formation plugging and prevent secondary precipitation,the PCT series formation additives are developed to protect the reservoir.It can effectively remove the plugging of both near wellbore zone and deep formation,and prevent clay swelling and migration.At the same time,it can also improve the micro-visous granularity of the fluid and shrink the swollen clay to some extent.It has proven ideal application results in field tests.