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井的原油既具有正烷烃奇偶优势，又具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井的原油既具有正烷烃奇偶优势，又具有较低甾萜烷异构体值，属于典型的低熟原油。
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代表本软件的观点；若发现问题，欢迎向我们指正。
