Table 4 Original Longmaxi shale PNW parameters70,71,73.

From: Impact of de-ionized water on changes in porosity and permeability of shales mineralogy due to clay-swelling

Porosity

Model size

Mean pore body diameter (nm)

Mean pore throat diameter (nm)

Coordination number

Swell ratio

Anisotropic ratio (ax:ay;az)

Original (1.58%)

20 × 20 × 20

4.3

0.66

4

0

22: 22: 1

Treated (1.06%)

20 × 20 × 20

3.1

0.46

4

0.71

22: 22: 1

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