Analysis of influence factors of start-up yield stress for heavy oil emulsions. (3rd June 2019)

• Record Type: Journal Article
• Authors: Jing, Jiaqiang; Wang, Shuai; Xiao, Fei; Zhang, Ming; Han, Li; Gou, Xianghan
• Is Part Of: Petroleum science and technology. Volume 37:Number 11(2019)
• Page Start: 1314
• Page End: 1322
• Publication Date: 2019-06-03
• Subjects: heavy oil emulsions -- influence factors -- water cut -- phase inversion point -- start-up yield stress; Liquid fuels -- Periodicals; Petroleum -- Periodicals; 665.505
• DOI: 10.1080/10916466.2019.1581808
• Languages: English
• ISSNs: 1091-6466

Abstract

Abstract: Experimental research on influence factors of yield characteristic for heavy oil emulsions, including water cut (0–50%), start-up temperature (4–20 °C), statics time (30 & 60 min) and constant shear stress (0.01–10 s −1 ). Results reveal that start-up yield stress increases with water cut and reaches maximum at 30% (phase inversion point). And the start-up yield stress displays a decay with increasing in start-up temperature and a rise with increasing of constant shear rate. Nevertheless, the coupling effect of water cut and static time was complex, which start-up yield stress increases with static time at 0% but decreases at 10–30%.