A Revolutionary EDFM Method for Modeling Dynamic Behaviors of Complex Fractures in Naturally Fractured Reservoirs

In this paper, we present a powerful dynamic EDFM (Embedded Discrete Fracture Model) method in conjunction with a black-oil reservoir simulator to simulate well interference in shale/tight oil reservoirs with complex fracture geometry. Well interference due to tighter well spacing and complex hydraulic fracture hits and natural fractures connections can be simulated easily and efficiently. We compare well performance between two and three horizontal wells with and without considering natural fractures. In addition, the effect of different number of complex hydraulic fracture hits on well productivity of infill well (child well) is examined. Furthermore, we investigate the influence of different times of infill wells starting to produce on flow behavior of infill well with and without considering natural fractures. This study provides critical insights into a better understanding of the impacts of well interference on well performance in shale reservoirs with complex fracture geometry.