作　　者： ; ; ; ; (张启明）;

机构地区： 中国科学院广州地球化学研究所有机地球化学国家重点实验室

出　　处： 《沉积学报》 1995年第2期86-92,共7页

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。 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.

关 键 词： 天然气 排烃 热模拟 莺 琼盆地

领　　域： [天文地球] [天文地球]