Equivalent characterization method for reservoir stratum cause unit interface

The invention discloses an equivalent characterization method for a reservoir stratum cause unit interface. The equivalent characterization method comprises the specific step of tracking a three-dimensional geologic model sand body cause unit interface based on three-well-point data constraint: combining well-point explanation data to smooth sedimentary microfacies data in a three-dimensional geologic model by adopting a low-pass filtering algorithm, tracking cause units, namely the spatial position of each microfacies interface on the basis, and forming three-dimensional spatial dispersion data of an architecture interface. According to the equivalent characterization method, the influence of the grid conductivity equivalent characterization low-seepage architecture interface between the reservoir stratum cause units on the seepage effect is utilized, and the grid conductivity between the reservoir stratum cause units is adjusted, so that the aim that the low-seepage architecture interface ...