An Experimental Study on Stress Sensitivity of Tight Sandstones with Different Microfractures

Table 1

Depth, porosity, and permeability of selected samples.

Samples	Depth (m)	Subsection (—)	L (cm)	D (cm)	Poro. (%)	Perm. (mD)
HH56-7	2099.40	Chang 9	6.533	2.532	17.00	3.619
HH56-9	2100.34	Chang 9	6.869	2.532	16.80	4.238
HH56-15	2102.54	Chang 9	6.987	2.533	14.45	1.062
HH56-16	2102.90	Chang 9	6.969	2.532	15.02	1.154
HH56-18	2104.07	Chang 9	7.013	2.533	16.64	2.104
HH190-4	2256.29	Chang 8	6.864	2.526	15.74	0.447
HH190-25	2258.15	Chang 8	7.155	2.525	10.86	0.459
HH107-4	2234.65	Chang 8	7.139	2.533	14.43	0.202
HH17-17	2242.24	Chang 8	6.601	2.532	8.53	0.113
JH36-4	1375.09	Chang 8	7.260	2.534	7.95	0.359
JH36-13	1379.22	Chang 8	6.503	2.531	9.47	0.710
JH23-17	1443.41	Chang 8	6.995	2.532	6.39	0.235
JH23-24	1445.62	Chang 8	6.848	2.533	7.89	0.330
JH23-28	1447.25	Chang 8	6.747	2.534	6.23	0.115