A new simulation method for fractured carbonate acidizing

In the previous research on simulation of fractured carbonate acidizing, it is generally assumed that the fractures cut the matrix uniformly and that the solution domain is dispersed into regular mesh pattern, which may find it very difficult to process fractures with complex shapes. In order to simulate the acid flow response process of fractured carbonate more realistically, this paper uses finite element mesh to carry out fine mesh division to its solution domain, so that the solution domain can better approach the various complex fracture shapes. In addition, finite element method is used to perform simulation, which realizes analog simulation of linear flow and radial flow acidization, favorably addressing the problem of mesh orientation. The results show that it is workable that finite element method is used for acid simulation, providing a new technique for fine acid simulation inside porous media.