The crude oils of Chang 20 belong to typical immature oil which have odd even predominance and lower ratios of sterane and terpane maturity index.
长20井的原油既
有
烷烃奇偶优势，又有较低甾萜烷异构体
值，属于典型的低熟原油。
The crude oils of Chang 20 belong to typical immature oil which have odd even predominance and lower ratios of sterane and terpane maturity index.
长20井的原油既有烷烃奇偶优势，又有较低甾萜烷异构体值，属于典型的低熟原油。
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