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A high salt tolerance and low adsorption drag reducer based on non-covalent enhancement
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MA Yingxian,ZHU Zhi,GUO Jianchun,ZHOU Han,LI Jia,XIONG Yujia,MA Leyao
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Table 1 Granularity test results of DN drag reducer.
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Mass
fraction/
% | Salinity /
(mg·L-1) | Specific
surface area/
(m2·g-1) | Surface area
average particle size/μm | Volume
average particle size/μm | | 0.1 | 0 | 3.360 | 1.787 | 18.030 | | 0.1 | 100 000 | 0.814 | 7.368 | 25.087 | | 0.2 | 0 | 4.440 | 1.353 | 10.790 | | 0.2 | 300 000 | 0.370 | 16.231 | 29.332 |
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