A New Experimental Approach for Hydraulic Fracturing Fluid Damage of Ultradeep Tight Gas Formation

Table 5

CSM damage test results of the tight sandstone cores.

Core no.
	10^−6 μm^2	10^−6 μm^2	(%)
1	1.151	0.646	43.9
2	1.938	1.093	43.6
4	2.135	1.523	28.6
8	0.682	0.406	40.4
12	0.026	0.018	30.4
13	27.676	17.764	35.8
14	7.842	5.575	28.9
18	114.078	76.489	33.0
20	9.811	5.565	43.3