论文部分内容阅读
临清坳陷东部太原组煤系是1套良好的生油源岩,其生油潜力主要取决于沉积有机相。根据沉积学和有机地球化学特征,对其有机相类型和纵向分布规律进行了研究:太原组中部湖成沼泽腐泥-腐植煤相和滨浅湖—沼泽腐植泥相为煤成烃的主要源区;太原组顶、底部均以滨海沼泽腐植煤相沉积为主,生烃潜力较小;半深湖—浅湖腐泥相纵向上分布较少,生烃贡献小。烃源岩综合分析为解决石炭—二叠系煤系源岩生油研究提供了重要资料。
The coal measure of the Taiyuan Formation in the eastern part of Linqing Depression is a well-established source rock. The potential of oil generation mainly depends on the sedimentary organic phase. Based on sedimentology and organic geochemical characteristics, the organic phase types and vertical distributions are studied: the marsh saprolite - humic coal phase and shallow lake - marsh humus phase in central lake of Taiyuan Formation are the main sources of hydrocarbon generation In the Taiyuan Formation, the top and bottom of the Taiyuan Formation are dominated by coastal coal seams, with low potential for hydrocarbon generation. Sediment distribution in the semi-deep lacustrine-shallow lacustrine sediments is less and the hydrocarbon generation contribution is small. The comprehensive analysis of source rocks provides important data for the study of oil generation from Carboniferous-Permian coal measures.