Design method of coring horizontal well for detecting staged fracturing artificial fractures of horizontal well

The invention discloses a coring horizontal well design method for detecting staged fracturing artificial fractures of a horizontal well, and relates to the field of oil well fracturing exploitation, in particular to the coring horizontal well design method for detecting the staged fracturing artificial fractures of the horizontal well. The coring area is selected according to the following two conditions: 1) the coring area has at least two continuous oil layers in the longitudinal direction, and the continuous oil layers have overlapped parts in the longitudinal direction; (2) four or more large well cluster horizontal well groups can be deployed on the upper oil layer located at the top; the method comprises the following steps: 1) determining parameters of an upper-layer oil layer large well cluster well network located at the top of a continuous oil layer in a coring area according to the geological condition of an oil reservoir and the technical level of well drilling and fracturing, and deploying at le