Numerical Simulation Optimization Study on Adjusting Well Pattern and Productive Series in Xingqi Area

In order to optimize space of tertiary infill wells and tertiary recovery wells, this paper applies numerical simulation method to study Xingqi Area in Daqing oil field. According to serious lateral and vertical heterogeneity and different control degree of water flooding in different parts of reservoir, 3 development schemes are designed. Numerical simulation results show that Scheme 2 is the best, whose well pattern consists of tertiary infill wells and tertiary recovery wells. When water cut is 98%, the ultimate recovery reaches 58.66%, which is 10.74% higher than the ultimate recovery of old well pattern. The result possesses great theoretical guidance for the same kinds of reservoirs.