Review of liquid unloading technology: Foam, velocity string, atomizing and vortex flow, for gas wells in the Sulige gas field
WANG Rui, ZHANG Ningsheng, LIU Xiaojuan, CHEN Jie, DOU Liangbin
1 Xi’an University of Petroleum, Xi’an 710065, China 2 Changqing Downhole Technology Company, Chuanqing Drilling Engineering Co., Ltd., Xi’an 710018, China 3 School of Mathematics and Statistics, Xi’an Jiaotong University, Xi’an 710049, China
There are many low-pressure gas wells in the Sulige gas field. These wells have low production efficient and serious liquid loading problems. Various techniques have been utilized to solve this problem in the area, but their process optimization and applicability still need to be investigated. In this paper, we reviewed the principles, process optimization, applicability and experimental apparatus for four liquid unloading processes: foam, velocity string, atomization and swirl flow.
王瑞,張寧生,,劉曉娟,,陳潔,竇亮彬. 蘇里格氣田泡沫和井下工具類排水采氣工藝研究現狀[J]. 石油科學通報, 2016, 1(2): 241-256. WANG Rui, ZHANG Ningsheng, LIU Xiaojuan, CHEN Jie, DOU Liangbin. Review of liquid unloading technology: Foam, velocity string, atomizing and vortex flow, for gas wells in the Sulige gas field. 石油科學通報, 2016, 1(2): 241-256.