However, the hydrocarbon accumulation or reservoir formation requires some thickness of source rock.
但油气的聚集和油气藏的形成，对源岩厚度有一定要求。
The estimation of erosion thickness is a foundation for studying palaeostructural characteristic, modeling source rock thermal evolution history and analyzing palaeo-fluid potential.
剥蚀厚度估算是进行古构造特征研究、烃源岩热演化史模拟和古流体势分析的重要基础工作。
Second, source rock evaluation instead of effective source rocks evaluation, which results in overvalued thickness and quality of effective source rock and abundance of organic matter.
第二是以源岩评价代替对有效烃源岩的评价，致使有效烃源岩厚度、有机质丰度以及有效烃源岩品质评价过高。
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