应用芳烃生物标志化合物探究板桥凹陷烃源岩地球化学特征  

Exploring geochemical characteristics of hydrocarbon source rocks in Banqiao Depression using aromatic hydrocarbon marker compounds

作　　者：张丽雪 刘庆新 滕建成 杨蕴泽 迟敬柏 Zhang Lixue;Liu Qingxin;Teng Jiancheng;Yang Yunze;Chi Jingbai(Northeast Petroleum University,Daqing 163318,China;China Petroleum Dagang Oilfield Exploration and Development Research Institute,Tianjin 300280,China)

机构地区：[1]东北石油大学,黑龙江大庆163318 [2]中国石油大港油田勘探开发研究院,天津300280

出　　处：《能源与环保》2024年第9期161-168,共8页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

摘　　要：针对板桥凹陷烃源岩芳烃特征,基于油气有机地球化学理论和烃源岩芳烃气相色谱—质谱(GC-MS)分析技术对板桥凹陷沙河街组烃源岩展开研究。结果表明,板桥凹陷沙一下亚段和沙三段烃源岩芳烃组分组成以菲系列和萘系列化合物为优势组分;有机质来源存在较高比例的高等植物生源输入;两套主力烃源岩在沉积环境与成熟度上存在明显差异,沙一下亚段为咸水沉积,烃源岩成熟度处于低—成熟阶段,沙三段为淡水沉积,塘沽地区有局部咸化现象,烃源岩成熟度处于成熟—高熟阶段。其中菲系列化合物参数、MDR和三芳甾烷指数(C_(28)20S/(20S+20R)-TAS)不适用研究区烃源岩成熟度评价。研究结果为板桥凹陷沙河街组的勘探开发提供参考。Based on the characteristics of aromatic hydrocarbons in the hydrocarbon source rocks of Banqiao Depression,a study was conducted on the hydrocarbon source rocks of Shahejie Formation in Banqiao Depression using oil and gas organic geochemistry theory and gas chromatography-mass spectrometry(GC-MS)analysis technology.The results show that the aromatic components of the hydrocarbon source rocks in the lower and third sections of the Shahejie Formation in the Banqiao Depression are dominated by phenanthrene and naphthalene series compounds;there is a high proportion of input from higher plant sources of organic matter;there are significant differences in sedimentary environment and maturity between the two sets of main hydrocarbon source rocks.The lower section of the Shahejie Formation is a saltwater sediment,and the maturity of the hydrocarbon source rocks is in the low-mature stage.The third section of the Shahejie Formation is a freshwater sediment,and there is local salinization phenomenon in the Tanggu area.The maturity of the hydrocarbon source rocks is in the mature-high mature stage.The parameters of the phenanthrene series compounds,MDR,and triaryl sterone index(C_(28)20S/(20S+20R)-TAS)are not suitable for evaluating the maturity of the hydrocarbon source rocks in the study area.The above results provide reference for the exploration and development of the Shahejie Formation in the Banqiao Depression.

关 键 词：有机质来源 成熟度 沉积环境 烃源岩 沙河街组 板桥凹陷 

分 类 号：TE122.113[石油与天然气工程—油气勘探]