Accumulation Period and Accumulation Process of Hydrocarbon in Huqing Area of Dongpu Depression
详细信息
- 责任者：Hao Jianguang (Research Institute ; Shenzhen Branch ; CNOOC ; Guangzhou 510240 ; China) ; Jiang Youlu
- 刊名：Fault-Block Oil and Gas Fields
- 出版年：2013
- 卷期：20(1)
- 关键词：成藏期 ; pool-forming period ; 流体包裹体 ; fluid inclusions ; 东濮凹陷 ; Dongpu Sag
- 页码：p.38-42
- 图表：illus., 1 table, 23 refs.
- 分类号：1003
- issnNo：ISSN1005-8907
- isbnNo：CN41-1219/TE
摘要
Based on the comprehensive analysis of the hydrocarbon accumulation conditions in Huqing Area of Dongpu Depression,this paper researches the hydrocarbon accumulation time and accumulation period through the use of homogenization temperature of fluid inclusion.Additionally,combined with the history of hydrocarbon generation and expulsion of source rocks and trap development history,the process of hydrocarbon accumulation is studied.The results show that the source rocks of Es3 member began to generate huge amounts of hydrocarbon in late Dongying Formation,which mainly migrated from the first step to the third step within connected sand bodies and along faults,and finally accumulated in Middle and Lower Es3 members on the second and third steps.With the uplifting of formations in late Dongying Formation,hydrocarbon generation of source rocks was restrained,and the first hydrocarbon accumulation event ended.From late Minghuazhen Formation to today,the formation was compensated excessively,and the secondary hydrocarbon generation of source rocks of Es3 member was obvious.Then all faults had stopped activity,and the hydrocarbon of this stage mainly accumulated in Middle and Lower Es3members in the first step.