Page 144 - Formation Damage during Improved Oil Recovery Fundamentals and Applications
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Formation Damage by Fines Migration: Mathematical and Laboratory Modeling, Field Cases  123


                  (A)  7
                            0.6 M      0.035 M     0.018 M        DI
                      6
                                          Experimental data
                                          Model
                      5
                    Impedance  4




                      3


                      2


                      1
                       0     5     10    15    20    25     30    35    40
                                               PVI

                  (B)  5  ×10 –5
                     4.5 4  0.6 M      0.035 M     0.018 M       DI

                                          Experimental data
                    Accumulated outlet concentration  2.5 3 2
                                          Model
                     3.5







                     1.5



                     0.5 1
                      0
                       0     5     10    15    20    25    30     35    40
                                               PVI
              Figure 3.19 Laboratory data and the fitted analytical model: (A) impedance J(T); (B)
              accumulated breakthrough concentration   Test 3 (PVI: number of pore volumes
              injected).
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