Xihu Sag is a giant depression basin with coal beds of Pinghu Formation as its main hydrocarbon source rocks.
西湖凹陷为一大型坳陷盆地，其主要烃源岩为平湖组煤系地层。
The compaction is the main force that expels the hydrocarbon from source rocks in Fulin subsag.
富林洼陷油气从烃源岩中排出的主要动力是压实作用。
For Dongying depression, the main factors to control hydrocarbon accumulation in lithologic reservoirs are good source rocks, special carriers and pathways and adequate accumulation dynamic.
良好的油源条件、独特的输导体系和成藏动力是控制东营凹陷岩性油气藏成藏的主要因素。
The petroliferous faults in the reservoir and high maturity of hydrocarbon and coal-bearing source rocks are the main factors for controlling the evaporative fractionation.
该含油气构造带的断裂系统和高成熟的油气及其煤系烃源岩是导致蒸发分馏作用的主控因素。
So the migration related to fractures is the main mechanism of hydrocarbon expulsion of the Low Tertiary source rocks in the Dongying Depression.
因此，与裂缝相关的油气运移机制是东营凹陷下第三系烃源岩排烃的主要机制。
So compaction is not the main mechanism of hydrocarbon expulsion of the Low Tertiary source rocks in the Dongying Depression.
因此，压实排烃不是东营凹陷下第三系烃源岩排烃的主要机制。
In the Jiyang depression, the main Carboniferous-Permian hydrocarbon source rocks are coals and dark mudstones.
济阳坳陷石炭二叠系烃源岩主要为煤和暗色泥岩。
In the Jiyang depression, the main Carboniferous-Permian hydrocarbon source rocks are coals and dark mudstones.
济阳坳陷石炭二叠系烃源岩主要为煤和暗色泥岩。
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