Hierarchical Multiple-Point Geostatistical Modeling Method and Application Based on Braided River Reservoir Architecture

被引:1
|
作者
Dou, Mengjiao [1 ]
Li, Shaohua [1 ]
Lei, Tao [2 ]
Ren, Guanglei [2 ]
Li, Xiaohui [2 ]
Guo, Ying [2 ]
Feng, Wenjie [1 ]
Zhang, Xianghui [1 ]
机构
[1] Yangtze Univ, Sch Geosci, Wuhan 430100, Peoples R China
[2] Huabei Branch Co Sinopec, Explorat & Dev Inst, Zhengzhou 450006, Peoples R China
基金
中国国家自然科学基金;
关键词
hierarchical modeling; progressive modeling; braided river reservoir; architecture anatomy; Ordos Basin; FIELD; AREA;
D O I
10.3390/min12111398
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
The Lower Shihezi Formation of the Daniudi gas field in the Ordos Basin is a typical reservoir of a braided river system in an alluvial plain, characterized by extensive braided river development, parallel development from the near source to the center of the basin, and frequent interweaving and cut stacking, as well as a complex deposition process that has seen frequent river channel changes. The braided river belt, braided channel, channel bar inside the river, and interlayer within the channel bar constitute a hierarchical and complicated architectural feature, which poses a great challenge to accurately characterize this type of reservoir for modeling. We proposed a hierarchical, level-by-level embedding, and progressive multiple-point geostatistical modeling strategy that is refined layer by layer according to a 5-3 level architectural unit hierarchy, with the modeling results of each level providing constraints for the next level modeling. The hierarchical geological model based on the combination of qualitative architectural anatomy and quantitative pre-architecture unit scale is critical in guiding the efficient development of the remaining gas in the braided river reservoir in Daniudi.
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收藏
页数:18
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