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

Table 2

Core stress sensitivity evaluation results.

Samples	b	D	Results	S	Results
HH56-7	0.0121	23.56	Weak	0.0801	Medium
HH56-9	0.0130	18.63	Weak	0.1509	Weak
HH56-15	0.0101	33.60	Moderate	0.1217	Medium
HH56-16	0.0030	27.81	Weak	0.1066	Medium
HH56-18	0.0157	25.06	Weak	0.4604	Medium
HH190-4	0.0135	76.70	Strong	0.4115	Strong
HH190-25	0.0170	71.98	Strong	0.4859	Medium
HH107-4	0.0193	79.60	Strong	0.5342	Strong
HH17-17	0.0297	83.23	Strong	0.7117	Strong
JH36-4	0.0244	93.38	Strong	0.6314	Strong
JH36-13	0.0271	89.63	Strong	0.6767	Strong
JH23-17	0.0261	91.11	Strong	0.6587	Strong
JH23-24	0.0306	91.33	Strong	0.7256	Strong
JH23-28	0.0121	93.83	Strong	0.0801	Strong