Experimental Investigation of Gas Expelled from Source Rock, Ying-Qiong Basin
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摘要: 本文对莺—琼盆地崖城组和梅山组气源岩样品进行了排烃模拟实验，结果表明梅山组样品单位有机碳的总产烃能力比崖城组差，崖１３－１气田的天然气可能属多来源的，是高成熟气源岩的产物。Abstract: Thermal modelling of gas expelled from source rocks of Yacheng Formation and Meishan Formation in Ying-Qiong Basin was made. The total amount of gases generated and expelled from Yacheng Formation is larger than that from Meishan Formation, suggesting that the gas generation potential of Yacheng Formation is higher than that of Meishan Formation. The similarity of the percentage of C1, C2-C4 and C5-C7 of the gases from Ya13 -1 field to that of the normalized gases produced at high evolution stage implies that the gases of Ya13 - 1 field may come from the source rocks with high maturity. There are similarity and difference between the composition of C6 and C7 of the gases from Ya13 -1 field and that of the normalized gases produced during the experiment. The stable carbon isotope composition of the saturated fraction of the condensate of Ya13 - 1 field and the extracts of Yacheng Formation, Meishan Formation, Ying-Huang Formation indicates that the gases of Ya13 - 1 gas field may come from multiple source rocks.
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[1] 1.傅家漠等，1990,煤成烃地球化学，北京:科学出版社，40-46 。
2.张泉兴、温伟明，1993.莺一琼盆地天然气组成和同位素资料的地质应用，莺歌海盆地石油地质论文集，北京:地震出版社，113-119 。
3.张泉兴、张启明，1987.崖13一1气田油气运移特征，中国海上油气，1(2):35-42。 -
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