Effects of Temperature and Salinity on the Rheological Properties of Polysaccharide/B-PPG Composites
The study evaluated the rheological properties of polysaccharide/B-PPG composites at different concenrations,temperatures and salinities.Rheological results show that the salinity has a greater influ-ence on reducing the viscosity and the dynamic modulus of B-PPG,and the temperature is the dominant affecting factor for xanthan/B-PPG composite.Diutan/B-PPG composite has a superior temperature tol-erance and salt tolerance than B-PPG and xanthan/B-PPG.Strong particle gel was constituted by the in-teraction between diutan gum double helices of and branched chains of B-PPG.It is believed that the method of combination of diutan gum and B-PPG is an effective strategy to enhance the heavy oil in high temperature and high salinity heterogeneous reservoirs.
Polysaccharide B-PPG composite rheology temperature/salt tolerance
Zhe Qiu Long Xu Houjian Gong Chaofan Zhu Yajun Li Mingzhe Dong
School of Petroleum Engineering,China University of Petroleum(East China),Qingdao,Shandong,266580,China
国内会议
青岛
英文
81-91
2018-06-20（万方平台首次上网日期，不代表论文的发表时间）