Table 1
Reservoir and seal pairs of Xingouzui formation in Jianghan Basin.
| Formation | Thickness (m) | Lithologic character | Reservoir | Seal | ||
|---|---|---|---|---|---|---|
| Xingouzui Formation | Upper | 200~600 | Red mudstone with sandstone |
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| Lower | Gypsum | 5~20 | Grey argillaceous gypsum and white gypsum | |||
| Sandstone 1 | 50~150 | Red-grey mudstone and sandstone |
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| Sandstone 2 | 100~250 | Grey mudstone with marl and sandstone | ||||
| Mudstone | 100~250 | Grey mudstone with gypsum-bearing mudstone |
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| Sandstone 3 | 100~250 | Red-grey mudstone and sandstone |
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