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为判明黄骅坳陷千米桥奥陶系潜山天然气藏的气源问题 ,对大港地区不同层位烃源岩进行热模拟实验。采用气源综合动态对比思路 ,根据对模拟得到的产气率、轻烃、轻烃碳同位素的研究 ,对千米桥奥陶系潜山天然气进行动态气源对比。对比结论 :板桥凹陷和歧口凹陷沙三段烃源岩均可为千米桥奥陶系潜山供气 ,认为潜山凝析油主要来源于烃源岩成熟阶段 ,天然气主要来源于烃源岩高成熟阶段。图 6表 2参 4(罗霞摘 )
In order to find out the gas source of the Ordovician buried hill natural gas reservoirs in the Hami depression depression, the thermal simulation experiments were carried out for the source rocks in different layers in the Dagang area. Based on the comprehensive dynamic comparison of gas sources, the dynamic gas source of Ordovician buried hill gas in Qianmiqiao was compared based on the research of gas production rate, light hydrocarbon and light hydrocarbon carbon isotope. It is concluded that the source rock of the Member 3 of Banqiao Sag and Qikou Depression can supply gas to Ordovician buried hills in Qianmiqiao area. It is considered that the condensate of buried hill mainly comes from the maturity stage of source rock. The natural gas mainly comes from hydrocarbon Source rock high maturity stage. Figure 6 Table 2 Senate 4 (Luo Xia picks)