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·998·                             精细化工   FINE CHEMICALS                                  第 36 卷

                                              表 3  HPSA 的注入量对采收率的影响
                                        Table 3    Effect of injection volume of HPSA on the EOR
                                                                         采收率/%
                                       –3
              岩心编号     长度/cm   渗透率/(10 μm)   孔隙度/%     注入量/PV                             HPSA 提高的采收率/%
                                                                  水驱采收率/%      总采收率/%
                 1       30        626.43      25.03      0.1        54.28       55.53           1.25
                 2       30        605.18      26.44      0.2        56.55       59.22           2.67
                 3       30        593.74      24.19      0.3        53.21       56.73           3.52
                 4       30        569.28      21.30      0.4        51.32       55.66           4.34
                 5       30        613.26      22.68      0.5        55.47       60.77           5.30
                 6       30        622.65      21.92      0.6        51.47       57.18           5.71
                 7       30        613.29      21.33      0.7        56.16       62.41           6.25

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