RESEARCH AND APPLICATION OF WATER SHUTOFF TECHNOLOGY IN HAIWAIHE OILFILED

Since 1989, the viscosity oilfield of Haiwaihe has been developed, the water cut has been raised step by step which being affected from water flooding, edge water and bottom water driving. Now, the water cut is nearly 80 percentage and restricts oil development. The water shutoff technology and its well selecting method has been confirmed according to the character of the wells and oilfield geology analysis. The series water shutoff agent of F908 were evaluated in lab and the field application effect were analyzed. The result shows that this water shutoff technology can meet the need in Haiwaihe oilfield.