Characterization of the Dynamic Imbibition Displacement Mechanism in Tight Sandstone Reservoirs Using the NMR Technique

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2020/8880545/figures/8880545.fig.001a.svgz" name="8880545.fig.001a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Intergranular pores</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2020/8880545/figures/8880545.fig.001b.svgz" name="8880545.fig.001b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Intergranular pores and dissolved pores</td></tr><tr class="fig-image" id="c"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2020/8880545/figures/8880545.fig.001c.svgz" name="8880545.fig.001c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Microcracks</td></tr><tr class="fig-image" id="d"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2020/8880545/figures/8880545.fig.001d.svgz" name="8880545.fig.001d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Dissolved pores</td></tr></table>

<div>The pore types of the Yanchang group tight sandstone samples.</div>

Geofluids

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Figure 1

Figure 1: Characterization of the Dynamic Imbibition Displacement Mechanism in Tight Sandstone Reservoirs Using the NMR Technique 