A high salt tolerance and low adsorption drag reducer based on non-covalent enhancement

MA Yingxian,ZHU Zhi,GUO Jianchun,ZHOU Han,LI Jia,XIONG Yujia,MA Leyao

Table 5 Thickening time of DN at different salinities.

Salinity/ (mg·L-1) Mass fraction/% Thickening Time/s Apparent viscosity/ (mPa·s) 0 0.10 14 1.39 100 000 0.10 40 1.12 200 000 0.15 52 1.27 300 000 0.20 60 1.53