Citation: | YAN Lifei, SHEN Ruichen, YUAN Guangjie, XIA Yan, LIU Zhaoli, WANG Wu. Application of fuzzy-ball drilling fluid in alternating lithology well of Qinshui Basin[J]. COAL GEOLOGY & EXPLORATION, 2016, 44(1): 137-140. DOI: 10.3969/j.issn.1001-1986.2016.01.027 |