【摘要】 伊通盆地岔路河断陷是一个双断式内陆断陷,其油气藏的形成与演化经历了一个多期次油气充注与再次调整的复杂过程。采用显微测温技术并结合生排烃史、埋藏史、热史和区域构造分析方法研究表明,岔路河断陷发育3期油气充注。结合石英颗粒含油包裹体颗粒指数GOI技术解释了位于构造高部位的早期充注的油气经历过再次运移与破坏,而位于构造低部位的晚期充注的油气则保存较好,说明构造低部位具有一定的勘探前景。更多还原

【Abstract】 Chaluhe faulted depression of Yitong Basin,an inland graben,has experienced multiple phased tectonic activities from the Late Cretaceous to the present.By means of microthermometry combined with the analysis of burial history,thermal history,and integrating hydrocarbon generation and expulsion history of major source rocks with tectonic movements,the hydrocarbon filling process can be subsequently divided into three episodes.While the GOI technology proves that the earlier filling hydrocarbon has been destructed at the peak of the structural closures,and the later filling hydrocarbon at the deeper structural closures are still preserved.This shows a favorable prospective for the future exploration.更多还原