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Optimization of huff-n-puff gas injection in shale and tight oil reservoirs  125





                                                                 days.

                                                                 100
                                                                 of
                                                                 time

                                                                 huff
                                                                 the
                                                                 with
                                                                 days

                                                                 300
                                                                 (B)
                                                                 and
                                                                 days

                                                                 100
                                                                 (A)
                                                                 of
                                                                 time
                                                                 puff
                                                                 the
                                                                 for
                                                                 pressures



                                                                 block

                                                                 Near-wellbore





                                                                 5.6
                                                                 Figure
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