Mechanism of Forming Low Resistivity in Shale Reservoirs

Table 1

Data on rock resistivity test of No. 4 sample from N24 well.

No.	Water saturation (%)	Rock resistivity (Ω·m)	Resistivity scaling coefficient
1	100	23.8	1.00
2	90.9	27.7	1.16
3	82.1	34.7	1.46
4	66.8	48.8	2.05
5	59.3	57.1	2.40
6	53.3	78.0	3.28
7	48.5	100.0	4.20
8	42.6	124.8	4.44