Method and device for determining hydrofracture perforation azimuth information

The invention discloses a method and device for determining hydrofracture perforation azimuth information, and relates to the technical field of oilfield development, and the method comprises the following steps: obtaining a plurality of core samples of a specified shale reservoir; carrying out an acoustic emission test and a paleomagnetic test on the rock core sample, and determining the orientation and size of the maximum and minimum horizontal principal stress and the orientation of the natural fracture; establishing a true three-dimensional hydrofracture model by using the orientations and sizes of the maximum and minimum horizontal principal stresses and the orientation of the natural fracture; performing hydraulic fracturing on the hydraulic fracturing sample by utilizing the true three-dimensional hydraulic fracturing model, and determining the orientation of a hydraulic fracture, the horizontal pressure difference of hydraulic fracturing and an approximation angle; and analyzing the orientation of the