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川西北中三迭统雷口坡组,是目前该地区主要的油气勘探目的层之一。对该地区的有机质进行系统研究,对于确定其有机质的丰度、母质类型、有机质堆积的介质条件以至成熟演化等有其重大的意义;对于进一步估价生油气潜能,也是必不可少的重要参数。为此,我们对江油马角坝中三迭统雷口坡组的地层,系统地采集了岩石样品46件,分别进行了可溶有机质,氨基酸及不可溶有机质——干洛根的萃取、离析工作,进行了元素组成分析、结构及官能团红外吸收光谱分析,以及个别氨基酸色谱分析等,最后对所获资料进行了电子计算机的多元统计分析。现将有关成果分别简述于后。
The Middle Triassic Leikoupo Formation in northwestern Sichuan is one of the major oil and gas exploration target areas in the area. The systematic study of the organic matter in the area is of great significance for determining the abundance of organic matter, parent material type, medium conditions of organic matter accumulation and even evolutionary evolution. It is also an indispensable and important parameter for further assessment of the potential of hydrocarbon generation. To this end, 46 samples of rock samples were systematically collected from the strata of the Leikoupo Formation of the Triassic in the Jiangyou Majiaba Dam. The samples were extracted and analyzed for soluble organic matter, amino acids and insoluble organic matter - Work, elemental composition analysis, structure and functional groups infrared absorption spectroscopy, as well as individual amino acid chromatographic analysis, and finally the data obtained by the computer multivariate statistical analysis. The relevant achievements are summarized below.