本文選題：熱釋烴 + 游離油��； 參考：《石油實驗地質(zhì)》2016年06期

【摘要】：頁巖中滯留油存在著多種賦存形式,其中只有游離油才是天然彈性能量開采方式下頁巖油產(chǎn)能的有效貢獻者。但是,如何對頁巖中游離油與吸附油含量進行定量表征以及如何明確它們與周緣介質(zhì)的相互關(guān)系,目前并沒有現(xiàn)成的研究方法。該文通過對現(xiàn)有Rock-Eval熱解和熱解色譜方法進行改進,結(jié)合樣品溶劑抽提前后熱解對比實驗和不同類型樣品的綜合分析,建立了不同賦存狀態(tài)頁巖油熱釋法定量表征方法。利用新建立的方法對濟陽坳陷頁巖油專探井巖心樣品進行了實驗分析,發(fā)現(xiàn)頁巖吸附油含量與有機質(zhì)豐度成正比,而干酪根吸附—互溶能力隨熱成熟度增加而降低;同時,頁巖體系內(nèi)游離油/吸附油比值與有機碳含量存在負相關(guān)關(guān)系,表明干酪根不是液態(tài)游離烴賦存的主要場所。因此,建立的方法可以作為頁巖油賦存機理研究和頁巖含油性快速評價的實用手段。
[Abstract]:There are many forms of remaining oil in shale, and only free oil is an effective contributor to shale oil productivity under natural elastic energy exploitation. However, there is no existing research method on how to quantitatively characterize the content of free oil and adsorbed oil in shale and how to clarify the relationship between them and the surrounding medium. By improving the existing Rock-Eval pyrolysis and pyrolysis chromatography methods, combining with the comparative pyrolysis experiments before and after solvent extraction and the comprehensive analysis of different types of samples, a quantitative characterization method for the pyrolysis of shale oil with different occurrence states was established. The core samples of shale oil exploration wells in Jiyang depression were analyzed by using the new method. It was found that the content of shale adsorbed oil was directly proportional to the abundance of organic matter, while the absorption-intersolubility capacity of kerogen decreased with the increase of thermal maturity. There is a negative correlation between free oil / adsorbed oil ratio and organic carbon content in shale system, which indicates that kerogen is not the main place where liquid free hydrocarbon occurs. Therefore, the established method can be used as a practical means to study the occurrence mechanism of shale oil and to evaluate shale oil content quickly.
【作者單位】： 中國石化石油勘探開發(fā)研究院無錫石油地質(zhì)研究所;頁巖油氣富集機理與有效開發(fā)國家重點實驗室;國家能源頁巖油研發(fā)中心;中國石化油氣成藏重點實驗室;中國石化勝利油田分公司;
【基金】：國家重點基礎(chǔ)研究發(fā)展計劃(973)項目“陸相頁巖油形成演化與賦存機理”(2014CB239101)資助
【分類號】：P618.13

【參考文獻】

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