The Study of Flowing Characteristics from Fracture to Cave in Fractured-vuggy Reservoir

The single-phase flow in fracture and cave is studied on the base of numerical computation and experiment.The numerical model is put forth and calculated through projection method.The distribution law of flow field in fracture and cave is obtained and distribution of pressure and velocity are also given in this paper.Numerical computation and experiment show that the flow from fracture to cave is similar to jet flow if the cave is big enough.