| 摘要 |
Water collected in the area of coal beds has strongly positive δ13CDIC (12‰ to 22‰) that is readily distinguished from the negative δ13C of most surface and ground water (−8‰ to −11‰). Furthermore, the DIC concentrations in coproduced water samples are also high (more than 100 mg C/L) compared to the 20 to 50 mg C/L in ambient surface and ground water of the region. The distinctively high δ13C and DIC concentrations allow the identification of surface and ground water that have incorporated CBNG-coproduced water.
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