Table 1 Rating criterion of the indicators used in the evaluation.
From: A novel method for evaluating shale gas preservation conditions in an area on a regional scale
Evaluation parameter | Indicator | Rating criteria |
|---|---|---|
Fracture index (km/km2) | 0.00 | 1.00 |
0.00–30.00 | 1.00–0.00 | |
>= 30.00 | 0.00 | |
Dip angle index (°) | 0.00 | 1.00 |
0.00–30.00 | 1.00–0.00 | |
>= 30.00 | 0.00 | |
Stratigraphy index | Burial area | 1.00 |
Exposed area | 0.60 | |
Denuded area | 0.00 | |
Igneous and metamorphic area | 0.00 |
