Global Geology     2020 23 (2):  116-122    ISSN: 1673-9736:  CN: 22-1371/P Method for predicting cuttings transport using artificial neural networks in foam drilling PAK Kumdol1,2, PENG Jianming2, RI Jaemyong1, CHOE Kumhyok1, HO Yinchol3 1. School of Resource Exploration Engineering, Kim Chaek University of Technology, Pyongyang 999093, D. P. R. Korea; 2. College of Construction Engineering, Jilin University, Changchun 130026, China; 3. School of Information Science and Technology, Kim Chaek University of Technology, Pyongyang 999093, D. P. R. Korea Received 2019-11-14  Revised 2019-12-20  Online 2020-05-25 Reference  null Corresponding author: PENG Jianming