Anisotropic formation dip angle determination method based on transient multi-component induction logging

The invention discloses an anisotropic formation dip angle determination method based on transient multi-component induction logging. The method comprises the steps of (1) building a transverse isotropic formation model, and designing a multi-component transmitting and receiving antenna combination mode; (2) selecting a lower step signal source as an excitation source for transient multi-componentelectromagnetic wave logging, and measuring a pure secondary field in a formation after the excitation source is cut off; (3) adopting an inverse laplace transformation method for transforming a frequency domain multi-component induction logging tensor into a time domain, and obtaining an induced electromotive force for transient multi-component induction logging; (4) building an algebraic relation between a transient multi-component induction logging measurement signal and a formation dip angle; and (5) according to a change characteristic of an anisotropic formation dip angle in the time domain, determining a forma