Applying cluster horizontal wells to the development of complicated fault-block reservoirs
LI Shun ming,SUN Gou,LIU Zhi hong (Shengli Oil Field, Sinopec, Shandong 257015, P. R. China)
The complicated Yong 8 fault block reservoir in Shengli oil field, with many faults, multiple oil bearing formations, high reserve abundance and high oil viscosity, is easy to produce sand. Production rates of vertical wells are low. The production rate of horizontal well is high with small producing pressure drop, for its oil drainage area is larger than that of the vertical well. On the basis of the optimization of the plane location in fault block, the vertical position in oil bearing formation and the horizontal interval length for the horizontal well, cluster horizontal wells are designed for Yong 8 fault block. In the early stage of production, the average production rate of the horizontal well is twice than that of the vertical well. The fault block is developed much efficiently.
【CateGory Index】： TE347