Drainage gas recovery technologies for highly deviated horizontal wells and their application to many gasfields in Sichuan-Chongqing area
Zhang Ting, Chen Jiaxiao, Zhang Fengqiong, Li Jing, Tang Yan
Natural Gas Technology and Economy . 2019, (6): 40 -45 .  DOI: 10.3969/j.issn.2095-1132.2019.06.007