It is important to know the production of a single layer in the commingled producing well for finding out casing leakage or edge water incursion, designing and adjusting development project,and optimizing reservoir management.

Through analyzing the dynamic and static data of the well CB11C-2, the result shows that the well high-water-cut is edge water propelling in pay formation.

Study on Water Distribution of Peripheral-feed Peripheral-overflow Secondary Clarifier;