Method for endowing longitudinal permeability of geologic model by utilizing longitudinal connectivity relationship

The invention discloses a method for endowing a geologic model with longitudinal permeability by utilizing an oil reservoir longitudinal connectivity relationship, which comprises the following steps of: combining layers with an upper-lower layer connectivity relationship in an oil reservoir, and calculating a permeability value of the combined layer according to a sedimentary microfacies type of the combined layer; extracting a horizontal permeability field, an oil reservoir numerical simulation horizon and well point grid coordinate information in a geological modeling result, in the horizontal permeability field, assigning a permeability value within a range that the well point grid of the combined layer does not exceed half of a well spacing grid, assigning zero values to other grids, and obtaining a geological model longitudinal permeability field; the problem that in existing numerical reservoir simulation, the longitudinal permeability between simulation horizons is assigned according to the horizontal