1. College of Earth Sciences��Jilin University��Changchun 130061��China; 2. Institute of Geology Science of Jilin��Changchun 130023��China; 3. Jilin Land Surveying and Planning Institute��Changchun 130061��China

Fluid clusion sandstone samples from Xing 27��Xing 10 and Xing 3 wells were analynized by hom- ogenization temperature surveying. And we summarized the hydrocarbon accumulation stages in Shuangyang Forma- tion ��eservoir�� The results indicate that there are 5 ��6 times of thermal fluid events in sandstone reservoirs in the Shuangyang Formation of the Luxiang Fault Depression in Yitong Basin�� It can be devided into four periods of oil- gas filling�� The first period is 37. 8 Ma ± (the end of forming of Yongji Formation to early forming of Wanchang Formation); the second period is 33. 8 ��30. 5 Ma ± (the mid-forming of Wanchang Formation); the third period is 24. 9 Ma ± (i. e. the early forming of Qijia Formation); and the last period is 19. 8 ��16. 8 Ma ± (the end of forming of Qijia Formation to early forming of Chaluhe Formation)��