Pore Changes in Purple Mudstone Based on the Analysis of Dry-Wet Cycles Using Nuclear Magnetic Resonance

Table 4

Porosity values of different cycles.

Rock samples	Purple mudstone sample no. 1	Purple mudstone sample no. 2	Purple mudstone sample no. 3
Cycles	Porosity (%)
Nc = 1	0.0122	0.09211	0.15882
Nc = 2	18.78117	22.07175	22.19704
Nc = 3	24.58577	25.59275	24.24514
Nc = 4	20.17361	18.80871	22.58676
Nc = 5	15.48541	18.63617	27.98095
Nc = 6	19.7253	17.98795	—
Nc = 7	20.36575	18.3578	—
Nc = 8	21.299	—	—