Abstract:

In basin modeling system, the hydrocarbon migration-accumulation is the most important part, but the technologically weakest part of the system. For long time, it has been hot spot to find the stable and convergent methods for solving the hydrocarbon migration-accumulation history model due to its complexity. In this paper, authors present a combination method of finite volume method and perpendicular bisection grids, which has not only the advantages of finite different method such as asimpler scheme, less amount of computation and keeping mass balance within each grid, but also the advantages of finite element method in processing complicated boundary conditions. Its applications have proved that the combination of finite volume method and perpendicular bisection grids is able to effectively simulate the process of the 3D hydrocarbon migration-accumulation.

Key words: basin modeling, hydrocarbon migration- accumulation history, finite volume method, perpendicular bisection grids