地质科技通报2024，Vol.43Issue(2)：52-61,10.DOI:10.19509/j.cnki.dzkq.tb20220435
断陷盆地陡坡带新近系目标圈闭优势运移路径与汇聚能力分析:以渤海海域庙西北凸起东侧陡坡带为例
Analysis on migration path and convergence ability of Neogene target traps in steep belt of rifted basin:A case study of the eastern steep slope of the Miaoxibei Uplift in Bohai Sea
张捷 1于海波 1彭靖淞 1肖锦泉 1岳军培1
作者信息
- 1. 中海石油(中国)有限公司天津分公司,天津 300450
- 折叠
摘要
Abstract
[Objective]The size of Neogene reservoir formation in rifted basins is closely linked to deep oil and gas accumulation and three-dimensional transport systems.[Methods]This study examines the differential oil and gas charging issues associated with target traps in Neogene fault basins.Using the eastern steep slope of the Miaoxibei Uplift in the Bohai Sea as an example,we analyze the components of the oil and gas accumulation system in steep slope zones by evaluating fault conduction capability and dividing the dominant injection segments.Subsequently,oil and gas migration simulations are conducted under the control of the fault injection section.[Results]The re-search findings are as follows:① The accumulation system in the steep slope zone consists of deep hydrocarbon ac-cumulative sand bodies,large boundary faults,and late shallow faults.② The dominant hydrocarbon sinks in the three parts of the accumulation system interact with each other,forming a dominant migration path that is reflected in the overlapping fault charging section with the target trap.The middle section of the main migration fault on the east side of the Miaoxibei Uplift is a strong charging area,while the northern section is a medium charging area.A-mong the secondary migration faults,faults 4,6,and 8 have developed strong charging sections,while faults 1,2,and 11 have developed medium charging sections.③ Structural migration simulations reveal that the oil and gas ac-cumulation area develops in the middle of the steep slope zone in the east of the Miaoxibei Uplift,with two main migration routes in the east and one in the south.The typical sand traps in fault No.3 have developed four accu-mulation zones,with accumulation zone C being the most significant.[Conclusion]In conclusion,these research findings can serve as a reference for well deployment in target areas,and the technical methods employed can pro-vide support for hydrocarbon accumulation analysis.关键词
汇聚体系/运移路径/充注段/运移模拟/庙西北凸起东侧/陡坡带/断陷盆地Key words
accumulation system/migration path/charging section/transport simulation/the eastern of Miaoxibei Uplift/steep belt/rifted basin分类
天文与地球科学引用本文复制引用
张捷,于海波,彭靖淞,肖锦泉,岳军培..断陷盆地陡坡带新近系目标圈闭优势运移路径与汇聚能力分析:以渤海海域庙西北凸起东侧陡坡带为例[J].地质科技通报,2024,43(2):52-61,10.
