Injection-production structure adjusting method for offshore high-water-content oil field based on flow field characterization

The invention provides a flow field characterization-based injection-production structure adjustment method for an offshore high-water-content oil field, which belongs to the technical field of reservoir engineering and comprises the following steps: S1, fine history fitting of a reservoir numerical model and calculation of flow field basic attribute parameters; s2, calculating and outputting a dynamic effect coefficient in each grid by taking the grid in the numerical model as a unit, and carrying out normalization processing; s3, dynamic effect coefficient field grading evaluation is carried out, and injection-production structure adjustment potential units are divided; s4, calculating and outputting a reserve abundance coefficient of each grid unit, and performing normalization processing; s5, combining the normalized dynamic effect coefficient and the reserve abundance coefficient of the grid unit, and calculating and outputting a dynamic splitting coefficient; and S6, flow field grading evaluation is car