By studying the material conditions of entrapment, it is conclude that De Nan depression is a low-mature oil kitchen, that main source rock of Sha San member is partly mature.
成藏条件研究表明，德南洼陷下第三系生油岩成熟度低，主力生油层在洼陷深部进入生烃门限，德南洼陷是一个低熟油灶。
Three dynamic systems of entrapment are divided in the Eogene of De Nan depression in terms of stratigraphic, tectonic characteristic and the vertical distribution of abnormal formation pressure.
从成藏动力学系统的角度可将德南洼陷下第三系划分为三个成藏动力学系统，即上部、内部和下部成藏动力学系统。
Three dynamic systems of entrapment are divided in the Eogene of De Nan depression in terms of stratigraphic, tectonic characteristic and the vertical distribution of abnormal formation pressure.
从成藏动力学系统的角度可将德南洼陷下第三系划分为三个成藏动力学系统，即上部、内部和下部成藏动力学系统。
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