Several issues worthy of attention in current lacustrine shale oil exploration and development
JIN Zhijun,ZHU Rukai,LIANG Xinping,SHEN Yunqi
Table 4
Evaluation criteria for shale oil “sweet spots” in China's continental basins.
Evaluation indicators
Selection criteria of “sweet spots”
Horizontal permeability/10
-3
μm
2
Clay mineral content/%
Stress difference/MPa
Good
>0.01
<30
<5
Medium
0.001-0.010
30-50
5-10
Poor
<0.001
>50
>10