Difference of Maturity History of Carboniferous Source Rocks and the Oil-Gas Distribution in Ludong-Wucaiwan Area

• 责任者：Xiang Baoli (Research Institute of Exploration and Development ; Xinjiang Oilfield Company ; PetroChina ; Karamay 834000 ; China) ; Wang Xulong
• 刊名：Xinjiang Petroleum Geology
• 出版年：2010
• 卷期：31(2)
• 关键词：烃源岩 ; source rocks ; 准噶尔盆地 ; Junggar Basin
• 页码：p.122-124
• 图表：2 illus., 11 refs.
• 分类号：1003
• issnNo：ISSN1001-3873
• isbnNo：CN65-1107/TE

The difference of maturity of the Carboniferous source rocks in Ludong-Wucaiwan area is analyzed. Such a difference is mainly related to the source rock depth and the subsiding and upstanding of strata in the tectonic movements. The maturity history indicates that there exist three peak stages of hydrocarbon generation for the source rocks in this area. The end of Early Cretaceous (the Middle Yanshan movement) is the key period of these source rocks finally reaching mature and the oil-gas accumulation. The distribution of the source rocks controls the distribution of oil and gas in this area, while the maturity of the source rocks controls the component of hydrocarbons.