An intelligent identification method of safety risk while drilling in gas drilling

HU Wanjun,XIA Wenhe,LI Yongjie,JIANG Jun,LI Gao,CHEN Yijian

Table 2. Number of partial safety risk samples while drilling

Type of safety risk Number of safety risk samples Number of complete samples Training set Test set Training set Test set Formation gas production 32 10 80 103 Formation water production 18 10 50 55 Sticking drill tool 22 10 50 53 Connecting column 26 10 70 72