High-Frequency Sequence Stratigraphy and Hydrocarbon Accumulation Model of Cretaceous in Western Slope of Beisantai Uplift, Junggar Basin

详细信息   

• 责任者：Bai Xiaojia (School of Geoseiences ; China University of Petroleum ; Beijing 102249 ; China) ; Kang Yongshang
• 刊名：Journal of Earth Sciences and Environment
• 出版年：2012
• 卷期：34(2)
• 关键词：地层格架 ; stratigraphic framework ; petroleum exploration ; 准噶尔盆地 ; Junggar Basin
• 页码：p.41-48
• 图表：3 illus., 1 table, 29 refs.
• 分类号：1003
• issnNo：ISSN1672-6561
• isbnNo：CN61-1423/P

摘要

Based on Vail classic sequence stratigraphy theory, according to the core, well logging and seismic data, the sequence stratigraphic framework of Cretaceous in the western slope of Beisantai Uplift, Junggar Basin was established by the well-seismic correlation comprehensive analysis method; high-frequency sequences for the main system tracts with hydrocarbon were divided; the structural characteristics and hydrocarbon accumulation models of parasequences with hydrocarbon were comprehensively studied, and the accumulation characters were summarized; the direction for exploration of subtle reservoirs of Cretaceous was shown. The results showed that Cretaceous in western slope of Beisantai Uplift could be divided into four third-order sequences and six system tracts; hydrocarbon showing mainly distributed in low system tract and transgressive system tract of SQ2.