Effect of Micropore Structure on Macroscopic Water Cut Changing Law in Strongly Heterogeneous Reservoirs

Table 3

Design scheme of heterogeneous models.

No.	Scheme name	Permeability variation
1		0.5	0.005	0.621	0.366	0.009
2		0.6	0.021	0.595	0.365	0.019
3		0.7	0.050	0.550	0.346	0.054
4		0.8	0.094	0.478	0.329	0.099
5		0.9	0.169	0.380	0.280	0.171
6		0.94	0.196	0.363	0.259	0.182
7		0.96	0.218	0.318	0.243	0.221
8		0.98	0.249	0.310	0.211	0.231
9		0.99	0.262	0.274	0.196	0.267

Notes: (1) relative permeability curves of RRT-1 to RRT-4 are used when , 10-50 mD, 3-10 mD, and , respectively. (2) The permeability of the above-mentioned nine models all obeys the lognormal distribution with the same average permeability (12 mD).