东道海子地区储层孔隙烃和包裹体烃对比及油源分析

发布时间：2018-06-03 05:18

本文选题：孔隙烃 + 包裹体烃　；参考：《西安石油大学学报(自然科学版)》2017年03期

【摘要】：通过分析东道海子地区储层孔隙烃和孔隙烃的生物标志化合物特征来研究区内目标储层烃类来源,分离提取研究区内6口共12个储层分析样中的孔隙烃和包裹体烃,从气相色谱分析(GC)、气相色谱-质谱联用分析(GC-MS)入手,对比孔隙烃和包裹体烃的生物标志化合物特征及区域内3套烃源岩的生物标志化合物分布特征,结果表明:两者的生物标志化合物特征具有显著区别,包裹体烃较孔隙烃内部一致性更好,体现在:正构烷烃的分布上更为完整,Pr/Ph比值更低,甾烷和萜烷的发育程度更高等方面;推测包裹体烃多与二叠系烃源岩有关;孔隙烃多与二叠系和侏罗系烃源岩混源有关。储层烃类的来源分类可为进一步勘探提供一定的地质依据。
[Abstract]:By analyzing the characteristics of pore hydrocarbon and pore hydrocarbon biomarkers in Dongdaohaizi area, the source of hydrocarbon in the target reservoir is studied, and the pore hydrocarbon and inclusion hydrocarbon in 12 analytical samples of 6 reservoirs in the study area are separated and extracted. Starting with gas chromatographic analysis (GC) and gas chromatography-mass spectrometry (GC-MS), the biomarker characteristics of pore hydrocarbon and inclusion hydrocarbon and the distribution of biomarkers of three sets of hydrocarbon source rocks in the region are compared. The results show that the characteristics of biomarker compounds are significantly different, and the internal consistency of inclusions is better than that of pore hydrocarbons, which is reflected in the fact that the distribution of n-alkanes is more complete and the Pr-ph ratio is lower. The hydrocarbon inclusions are mainly related to Permian source rocks, and the pore hydrocarbons are mostly related to the mixed sources of Permian and Jurassic source rocks. The source classification of hydrocarbon in reservoir can provide some geological basis for further exploration.
【作者单位】：成都理工大学油气藏地质及开发工程国家重点实验室;重庆科技学院石油与天然气工程学院;
【基金】：国家自然科学基金“川西凹陷上三叠统须家河组储层水岩相互作用机理研究”(编号:41172119)
【分类号】：P618.13

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