Division Method and Seepage Law of Seepage Channels in a Tight Reservoir

Table 1

Basic properties of cores.

Core number	Length/cm	Diameter/cm	Porosity/%	Initial permeability/mD	Growth rate of crack permeability/%
1	7.88	2.5	12.54	0.82	8.94
2	7.91	2.5	13.02	0.91	27.18
3	7.91	2.5	12.78	0.10	35.03
4	7.94	2.5	13.12	1.24	62.87
5	7.88	2.51	10.24	0.39	9.17
6	7.88	2.53	10.68	0.42	14.17
7	7.91	2.53	10.85	0.45	23.92
8	7.84	2.52	1096	0.54	33.77