Shale gas well pressure channeling risk evaluation and prediction model and establishment method and application thereof

The invention discloses a shale gas well pressure channeling risk evaluation and prediction model and an establishment method and application thereof, and the method comprises the following steps: S1, obtaining an evaluation index before pressure channeling and an evaluation index after pressure channeling, and establishing a data set 1 and a data set 2; s2, performing preprocessing to obtain a data set III and a data set IV; s3, clustering processing is carried out, the clustering number is obtained, and the clustering number is the shale gas well pressure channeling risk grading number; s4, sorting classes obtained after clustering to obtain shale gas well pressure channeling risk grades, completing establishment of a shale gas well pressure channeling risk evaluation model, and obtaining a risk evaluation model before pressure channeling and a risk evaluation model after pressure channeling; s5, dividing a training set and a test set by taking the shale gas well pressure channeling risk grade as a label an