Array induction instrument borehole correction method and related equipment

The invention discloses an array induction instrument borehole correction method and related equipment. The method comprises the following steps: performing resolution matching based on an original conductivity curve to obtain multi-frequency multi-subarray stratum apparent conductivity with the same resolution; acquiring an initial value of a borehole correction variable, a borehole geometric factor, an invasion geometric factor and an undisturbed formation geometric factor coefficient; determining a first target parameter by using a linear optimization algorithm or a method for solving a linear equation set based on an induction measurement response model of the borehole geometric factor and the intrusion geometric factor; constructing a target function in which an actual logging value is matched with a simulation measurement response value of the induction measurement response model, and performing inversion by using a nonlinear optimization method according to the first target parameter to determine a sec