Investigation of microscopic pore structure variations of shale due to hydration effects through SEM fixed-point observation experiments

Weibo SUI,Yingying TIAN,Chenhao YAO

Table 4 Statistics on porosity before hydration and observed areal porosity after 6 days hydration.

Sample No. Initial porosity/% Areal porosity after hydration/% 2 3.15 1.87 3 4.38 0.52 4 1.91 2.91