New horizontal well liner completion andcementing technologies in water sensitive reservoirs

In view of the cementing difficulties existing in the Zheng-408 rock mass in the water sensitive heavy oil reservoirs, a new technology is studied and applied. It combines the liner hanger technology, the sizing cementing technology, the external cementing packer completion technology, and the screen sand control completion technology. It can not only be used to prevent water sensitive pollution and prevent oil zones, but also meet the requirement of thermal production. The technology is successfully applied to the Zheng 408-Ping 1 well in the Shengli Oilfield for the first time. The daily output of the well reaches 22.5 tons at the very beginning. Field application shows that the technology can be applied to reservoir development and can improve the production efficiency of complex reservoirs.