本文關(guān)鍵詞： 高郵凹陷 北斜坡戴南組 原油 生物標志物 地球化學特征 油源分析　出處：《大慶石油地質(zhì)與開發(fā)》2017年05期 　論文類型：期刊論文

【摘要】：高郵凹陷北斜坡戴南組油氣來源復雜,通過對研究區(qū)戴南組已發(fā)現(xiàn)油藏原油系統(tǒng)采樣,利用色譜—質(zhì)譜分析技術(shù),分析了原油的生物標志化合物特征,明確了油氣來源。研究表明,依據(jù)飽和烴色譜及萜、甾烷指紋特征,戴南組原油在Pr/Ph值、規(guī)則甾烷、β—胡蘿卜烷、伽馬蠟烷含量等方面有較明顯差別,反映了各類原油來自不同油源,可以劃分為3類。Ⅰ類原油來自阜四段和阜二段混源油,母源以高等植物貢獻為主,形成于半咸化環(huán)境,熱演化程度較高;Ⅱ類原油主要來自阜四段成熟油,母源除了有高等植物的輸入也有菌藻類等低等水生生物輸入;Ⅲ類原油來自阜二段成熟油,母源以高等植物貢獻為主,形成于較強的還原咸化環(huán)境。
[Abstract]:The source of oil and gas in Dainan formation on the northern slope of Gaoyou depression is complex. The characteristics of biomarker compounds of crude oil have been analyzed by means of chromatography-mass spectrometry (GC-MS) analysis. The source of oil and gas has been determined. The results show that the Pr/Ph value, regular sterane, 尾 -carrot and gamma-paraffin contents of Dannan formation crude oil are obviously different according to saturated hydrocarbon chromatography and the characteristics of terpene and sterane fingerprints. All kinds of crude oil come from different oil sources, which can be divided into three categories. Class I crude oil comes from mixed source oil of the fourth member and the second member of Fu formation. The main source is higher plant contribution, which is formed in the semi-salinized environment, and the thermal evolution is relatively high. Class 鈪，

本文編號：1500975