Table 3
Physical parameters of the mudstone caprocks in the Jianghan Basin from the Cretaceous to the Paleogene (average value).
| Structural pattern | Porosity (%) | Permeability (10−15 m2) |
|---|---|---|
| Qianjiang depression | 6.01 | 0.155 |
| Xiaoban depression | 3.96 | 0.341 |
| Mianyang depression | 8.68 | 0.271 |
| Yajiao-xingou low uplift | 9.94 | 0.113 |
| Yuekou low uplift | 8.53 | 0.045 |
| Tonghaikou uplift | 7.2 | 1.180 |