According to the concrete conditions of the strata, the fifth geological survey institution in Jilin province successfully selected effective construction technology and drilling fluid allocation for the drilling work in oil shale in Shulan, Dunhua and Songyuan. The paper introduced the drilling technologies and the drilling fluid allocation for the No. 5 well in Shulan, No. 3 well in Dunhua and ZK0833 well in Songyuan.