Detailed analyses of crude oils and source rock extracts indicate that there are two sets of effective hydrocarbon source rocks in eastern Pearl River Mouth Basin.
详细的原油和烃源岩抽提物分析表明，珠江口盆地东部地区存在两套有效的烃源岩。
Effective and high? Quality source rocks make a tremendous contribution to hydrocarbon reservoir forming in spite of a few thickness and special distribution.
有效烃源岩和优质烃源岩厚度不大、分布特殊，但是，它们对油气藏的形成作出了巨大的贡献。
Since long ago effective source rocks have been defined as rocks that have generated and discharged hydrocarbon and the discharged hydrocarbon can form commercial hydrocarbon reservoirs.
长期以来有效烃源岩的定义为已经生成和排出烃类，且所排出的烃类足以形成商业性油气藏的岩石。
The rules of hydrocarbon distribution are found:The distribution of effective source rocks in E23 and N1 formation is the precondition to discover hydrocarbon;
得到了本区新生代油气分布的几点规律：下干柴沟组上段（E23）和上干柴沟组（N1）作为本区的主力烃源岩是形成油气田的先决条件；
The rules of hydrocarbon distribution are found:The distribution of effective source rocks in E23 and N1 formation is the precondition to discover hydrocarbon;
得到了本区新生代油气分布的几点规律：下干柴沟组上段（E23）和上干柴沟组（N1）作为本区的主力烃源岩是形成油气田的先决条件；
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