“…The NRP model by Singh et al () assumed negligible capillary pressure, which can be an appropriate assumption for production from a sandy gas hydrate‐bearing field with operating pressures higher than capillary pressures, but capillary pressure is relevant at laboratory scale (Buleiko et al, ; Chen & Espinoza, ; Liu & Flemings, ; Pesaran & Shariati, ; Uchida et al, ), especially when the pore sizes are smaller than ~1 μm (Chen & Espinoza, ; Kang et al, , ; Liu & Flemings, ; Uchida et al, ) and in that case the accuracy of prediction from NRP is impacted as shown later. Capillary pressure also plays an important role in percolation properties of multiphase flow in hydrate‐bearing medium, where capillary pressure versus water saturation curve can be used to assess properties such as the degree of sorting and pore size distribution; a medium with uniform pore size distribution leads to a well‐sorted medium that is depicted by an elongated horizontal segment of the capillary pressure curve (Wang et al, ). It has been found that the presence of capillarity results in higher water permeability than when there is no capillarity for both grain‐coating and pore‐filling hydrates (Kang et al, ), but the mechanisms that reduce permeability in presence of hydrates (channel blocking and pore size reduction) are also alleviated a little (Kang et al, ) in the presence of capillarity.…”