The Hydrocarbon Inclusions and Significance of Hydrocarbon Accumulation in Ordovician Reservoirs in Eastern Tazhong Area, Tarim Basin
详细信息
- 责任者：Zhang Nai (State Key Laboratory of Enhanced Oil Recovery ; Research Institute of Petroleum Exploration and Development ; PetroChina ; Beijing 100083 ; China) ; Wang Zhaoming
- 刊名：Xinjiang Petroleum Geology
- 出版年：2011
- 卷期：32(3)
- 关键词：有机包裹体 ; organic inclusion ; 油气藏形成 ; reservoir formation ; 塔里木盆地 ; Tarim Basin
- 页码：p.267-271
- 图表：6 illus., 1 table, 15 refs.
- 分类号：1003
- issnNo：ISSN1001-3873
- isbnNo：CN65-1107/TE
摘要
A stage (the Stage-Ⅲ) of hydrocarbon inclusion with strong brown-red fluorescence is discovered in the Ordovician carbonate reservoir in eastern Tazhong area, which is different from the other parts of Tazhong area. There are three stages of hydrocarbon inclusions which contributed to the hydrocarbon accumulation in this area. Based on the composition characteristics, phase diagrams,temperature and pressure of them, it is proved that the Stage-Ⅲ formed in Yanshan-early Himalayan movement and high-maturity oil from the Cambrian only accumulated in the Middle-Lower Ordovician and Cambrian reservoirs in eastern Tazhong area, which explains the normal oil reservoir can be found in the eastern Tazhong, while condensate reservoirs have been mainly found in the other areas of Tazhong.