Research Article
Study on Relation between Hydrodynamic Feature Size of HPAM and Pore Size of Reservoir Rock in Daqing Oilfield
Table 1
The ionic composition of experimental water (mg/L).
| Water | Ion concentration, mg/L | Salinity, mg/L | Ions | K+, Na+ | Ca2+ | Mg2+ | Clā | | | |
| Clear water | 73.93 | 39.32 | 17.22 | 54.79 | 31.41 | 236.61 | 15.51 | 468.79 | Sewage | 1700.14 | 45.87 | 7.95 | 812.65 | 20.94 | 2886.58 | 186.15 | 5660.29 |
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