流体包裹体技术在油气成藏期次研究中的应用——以黑帝庙地区为例

Applitation of Fluid Inclusions in Study of the Times and Stages of Hydrocarbon Reservior Filling: A Case Study of Heidimiao Area in South Songliao Basin

应用流体包裹体均一温度、成分测试技术,结合埋藏史和古地温史,研究松辽盆地南部黑帝庙地区青山口组油气成藏期次。研究表明,该区经历了两次大规模油气运移成藏期和一次弱成藏期:第一次油气成藏期对应的古地温为80~100℃,期内发生嫩江末期构造运动对油气成藏产生不利影响;第二次油气成藏期对应的古地温为120~140℃,由于在明水末期研究区的构造基本定型,为油气成藏提供了圈闭条件,因此这次成藏是现存油气藏的主要成藏期;弱成藏期无论规模和持续时间都较小,对应的古地温为150~170℃,推测由断裂沟通深部烃源所造成。

We study the the times and stages of hydrocarbon reservior filling in Heidimiao area Songliao Basin according to the application of homogenization temperature of fluid inclusions and composition analysis technology,burial history and evolution of ground temperature.The result show that there were tow main stages of hydrocarbon reservior filling and a minor stages of hydrocarbon reservior filing, the ground temperature was between 80℃ and 100℃ during the fist main stage when there occurred Nenjiang tectogene...