Page 424 - Enhanced Oil Recovery in Shale and Tight Reservoirs
P. 424

Fracturing fluid flow back                                     393


                                                            low-
                                                            a
                                                            for
                                                            (C)
                                                            phase

                                                            late
                                                            and

                                                            (B),
                                                            phase


                                                            intermediate




                                                            (A),
                                                            phase

                                                            early

                                                            of
                                                            end
                                                            the
                                                            at
                                                            oil-wetness




                                                            and
                                                            IFT
                                                            different  mD).  (3.69


                                                            at
                                                            k ro  model
                                                            12.52


                                                            Figure  permeability
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