Assessment of Reservoir Heterogeneity of Qingshankou Formation in Changling Sag, Suotu Region, Songliao Basin
详细信息
- 责任者：Dong Fuxiang (Exploration and Mapping Institute ; Changchun Institute of Technology ; Changchun 130021 ; China) ; Chen Yukui
- 刊名：Journal of Jilin University
- 出版年：2011
- 卷期：41(3)
- 关键词：砂岩储集层 ; sandstone reservoirs ; 非均质性 ; heterogeneity ; 松辽平原 ; Songliao Plain
- 页码：p.622-628
- 图表：5 illus., 5 tables 16 refs.
- 分类号：1003
- 出版序号：997
- issnNo：ISSN1671-5888
- isbnNo：CN22-1343/P
摘要
///Changling sag locates in Songliao Basin’s south of the central depression area, Suotu Region is located in south central Changling sag. Based on the drill core records,well logging data,seismic profiles, rock thin sections, data of physical property, and Hg-injection test data,this study focuses on the reservoir heterogeneity of Qingshankou Formation. The results are summarized as follows. The majority of spaces in the reservoirs of Qingshankou Formation in Suotu region are undeveloped interparticle spaces, intraparticle dissolved pores and unmatured pellet internal pores. The normal rhythm and composite rhythm lead to granularity heterogeneity in the single sandstone layer, and structures result in the heterogeneity of permeability, thus providing a strong permeability heterogeneity in the layers. The divergence of grain sizes in different directions results in the heterogeneity of permeability in the area.
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