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Diagenetic Heterogeneity of Deep Sandstones and Its Relationship to Oil Emplacement: A Case Study from the Middle Jurassic Toutunhe Formation in the Fukang Sag, Central Junggar Basin (NW China)

文献类型：期刊论文

作者Cao, Binfeng1,2; Luo, Xiaorong1,2; Zhang, Likuan1; Sui, Fenggui3; Lin, Huixi3; Lei, Yuhong1
刊名GEOFLUIDS
出版日期2017
ISSN号1468-8115
DOI10.1155/2017/4292079
文献子类Article
英文摘要The Middle Jurassic Toutunhe Formation at depths of approximately 4000-6000m has increasingly come into focus as a current deep reservoir target in the central Junggar Basin (NW China). Based on petrography, SEM, stable isotopes, and fluid inclusion analyses, the goals of this study were to investigate the effect of depositional lithofacies on sandstone diagenetic heterogeneity and to examine the relationship between diagenetic evolution and oil charge within a heterogeneous reservoir. Grain size controls the overall abundance of cement and porosity and reservoir properties through its effect on ductile lithic sand grains and hence on mechanical compaction. Early diagenetic calcite cement is an exception to this trend. Ductile lithic-rich, very fine-grained sandstones featured compaction of easily deformed, clay-rich grains, resulting in a very rapid loss of porosity during burial. In contrast, dissolution and cementation occurred as well as ductile compaction in the fine-grained sandstones. Two episodes of oil charge occurred in the relatively coarser-grained sandstone lithofacies. Diagenesis progressed alternately with oil emplacement, and some diagenetic alterations and oil charge occurred simultaneously. Ductile lithic-rich, highly compacted sandstones and tightly calcite-cemented sandstones can create permeability barriers embedded in permeable reservoir sandstones, probably resulting in heterogeneous flow.
WOS关键词RESERVOIR QUALITY PREDICTION ; SOUTHERN NORTH-SEA ; ROTLIEGEND SANDSTONES ; SEDIMENTARY DEPOSITS ; MASS-TRANSFER ; OUTCROP ; POROSITY ; FIELD ; LAKE ; PERMEABILITY
WOS研究方向Geochemistry & Geophysics ; Geology
语种英语
WOS记录号WOS:000412596500001
出版者WILEY-HINDAWI
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences(XDA14010202) ; National Natural Science Foundation of China(41372151) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDA14010202) ; National Natural Science Foundation of China(41372151) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDA14010202) ; National Natural Science Foundation of China(41372151) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDA14010202) ; National Natural Science Foundation of China(41372151)
源URL[http://ir.iggcas.ac.cn/handle/132A11/61959]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Cao, Binfeng
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.SINOPEC, Shengli Oilfield Co, Inst Western Frontier Area, Dongying 257000, Peoples R China
推荐引用方式
GB/T 7714		 Cao, Binfeng,Luo, Xiaorong,Zhang, Likuan,et al. Diagenetic Heterogeneity of Deep Sandstones and Its Relationship to Oil Emplacement: A Case Study from the Middle Jurassic Toutunhe Formation in the Fukang Sag, Central Junggar Basin (NW China)[J]. GEOFLUIDS,2017.
APA Cao, Binfeng,Luo, Xiaorong,Zhang, Likuan,Sui, Fenggui,Lin, Huixi,&Lei, Yuhong.(2017).Diagenetic Heterogeneity of Deep Sandstones and Its Relationship to Oil Emplacement: A Case Study from the Middle Jurassic Toutunhe Formation in the Fukang Sag, Central Junggar Basin (NW China).GEOFLUIDS.
MLA Cao, Binfeng,et al."Diagenetic Heterogeneity of Deep Sandstones and Its Relationship to Oil Emplacement: A Case Study from the Middle Jurassic Toutunhe Formation in the Fukang Sag, Central Junggar Basin (NW China)".GEOFLUIDS (2017).

入库方式： OAI收割

来源：地质与地球物理研究所

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