Research Article
Occurrence and Origin of H2S from Volcanic Reservoirs in Niudong Area of the Santanghu Basin, NW China
Table 4
Sulfur and carbon isotope of samples obtained from the Kalagang Formation in the Santanghu Basin.
| | Well or sample no. | Type | δ34SV-CDT‰ | δ13CV-PDB‰ | δ18OV-PDB‰ | Note |
| | Gas pumping station | Gas | 20.5 | | | | | ND89-9 | Gas in water | 9.2 | | | | | ND89-10 | Gas in water | 10.3 | | | | | NDCT-03 | Rock | | -10.7 | -20.6 | Calcite | | NDCT-04 | Rock | | -5.8 | -21.8 | Calcite | | NDCT-05 | Rock | | -5.7 | -18.6 | Calcite | | NDCT-06 | Rock | | -3.3 | -21.4 | Calcite |
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