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)

doi:10.1155/2017/4292079

CORC > 地质与地球物理研究所 > 中国科学院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

	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)
	Cao, Binfeng 1,2; Luo, Xiaorong 1,2; Zhang, Likuan 1; Sui, Fenggui 3; Lin, Huixi 3; Lei, Yuhong 1
刊名	GEOFLUIDS
	2017
ISSN号	1468-8115
DOI	10.1155/2017/4292079
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
出版者	WILEY-HINDAWI
WOS记录号	WOS:000412596500001
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)
内容类型	期刊论文
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).