IMECH-IR  > 流固耦合系统力学重点实验室
Statistical analysis as a tool for assisting geochemical interpretation of the Upper Triassic Yanchang Formation Ordos Basin Central China
Pan SQ; Horsfield B; Zou CN; Yang Z; Gao DP(高大鹏); Pan, SQ (reprint author), Deutsch GeoForschungsZentrum GFZ Telegrafenberg, Sec 3 2, D-14473 Potsdam, Germany.; Yang, Z (reprint author), Dept Petr Geol, Xueyuan Rd 20, Beijing 100083, Peoples R China.
Source PublicationINTERNATIONAL JOURNAL OF COAL GEOLOGY
2017-03-01
Volume173Pages:51-64
ISSN0166-5162
AbstractThe Yanchang Formation in the Ordos Basin is the most important petroleum play not only for conventional oil and gas accumulations but also for newly emerging shale oil and tight gas resources. The molecular characterization of the basinwide source rocks predicts three groups of generative petroleum types: Paraffinic High Wax Oil mixed base (Paraffinic-Naphthenic-Aromatic) Low Wax Oil and Gas and Condensate. Supplementary to previous work 68 samples including the crude oils source bitumens and reservoir extracts from the Yanchang petroleum play are analyzed. The distribution of two terpane classes (eight tricyclic terpanes and eight pentacyclic terpanes) are determined with subsequent simultaneous RQ-mode factor analysis for a composite data set of these samples alongside 216 published crude oils worldwide with known facies descriptions. Thermal maturity has been evaluated as a consistent distribution at first using a combined method of a maturity-related biomarker [Ts / (Ts + Tm)] and aromatic parameters (Methyldibenzothiophene Ratios) to alleviate the maturity differences effect when discussing geochemical characterization. The R-mode factor analysis consists of the first two factors that are describing 45 present of the cumulative total variance in the data set and presents a sample grouping pattern in Q-mode factor analysis which is determined by different contributions of terpane associations i.e. the tricyclic C-21 coupled with pentacyclic C-25 C-27 C-28 and Cm in the same factor space. Three terpane associations the C-28 and C-28 terpanes the C-21 and C-30 terpanes and the C-27 pentacyclic terpenes are respectively responsible for discriminating crude oil reservoir extracts and source bitumens in RQ-mode factor analysis. Molecular compositions further address more detailed interrelationships among three sample groups that crude oils and reservoir extracts are sharing close genetic relationships both in depositional environment typing and C-27-C-28-C-29 sterane distribution. Samples from source rocks vary much significantly. A mixing process which occurs after oils has been expelled from host source rocks into carrier units during accumulation. In addition the migration -contamination of C29 sterols when oils are cross through the Chang 7-2 unit along migration pathways might also explain this lack of correlation between source rocks and oil -reservoir system. (C) 2017 Elsevier B.V. All rights reserved.
KeywordUpper Triassic Yanchang Formation Ordos Basin Geochemistry Molecular Composition Biomarker Simultaneous R- And Q-mode Factor Analysis
DOI10.1016/j.coal.2017.02.009
Indexed BySCI ; EI
Language英语
WOS IDWOS:000403120400005
WOS KeywordPOLYCYCLIC AROMATIC-HYDROCARBONS ; PALEOZOIC MARINE PETROLEUM ; OIL-SOURCE CORRELATION ; SWEET AREA EVALUATION ; MULTIPLE SOURCE ROCKS ; NORTH-CENTRAL CHINA ; TYPICAL CRUDE OILS ; IN-SOURCE ROCKS ; GAS ACCUMULATION ; TARIM BASIN
WOS Research AreaEnergy & Fuels ; Geology
WOS SubjectEnergy & Fuels ; Geosciences, Multidisciplinary
Funding OrganizationNational Basic Research Program of China(2014CB239000) ; Chinese Major Scientific and Technological Program(2016ZX05406-006) ; China Scholarship Council (CSC)(201406010066)
DepartmentLMFS水环境流体力学(LEM)
Classification一类
Ranking5
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60605
Collection流固耦合系统力学重点实验室
Corresponding AuthorPan, SQ (reprint author), Deutsch GeoForschungsZentrum GFZ Telegrafenberg, Sec 3 2, D-14473 Potsdam, Germany.; Yang, Z (reprint author), Dept Petr Geol, Xueyuan Rd 20, Beijing 100083, Peoples R China.
Recommended Citation
GB/T 7714
Pan SQ,Horsfield B,Zou CN,et al. Statistical analysis as a tool for assisting geochemical interpretation of the Upper Triassic Yanchang Formation Ordos Basin Central China[J]. INTERNATIONAL JOURNAL OF COAL GEOLOGY,2017,173:51-64.
APA Pan SQ.,Horsfield B.,Zou CN.,Yang Z.,高大鹏.,...&Yang, Z .(2017).Statistical analysis as a tool for assisting geochemical interpretation of the Upper Triassic Yanchang Formation Ordos Basin Central China.INTERNATIONAL JOURNAL OF COAL GEOLOGY,173,51-64.
MLA Pan SQ,et al."Statistical analysis as a tool for assisting geochemical interpretation of the Upper Triassic Yanchang Formation Ordos Basin Central China".INTERNATIONAL JOURNAL OF COAL GEOLOGY 173(2017):51-64.
Files in This Item: Download All
File Name/Size DocType Version Access License
JouAr-2017-065.pdf(1820KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Pan SQ]'s Articles
[Horsfield B]'s Articles
[Zou CN]'s Articles
Baidu academic
Similar articles in Baidu academic
[Pan SQ]'s Articles
[Horsfield B]'s Articles
[Zou CN]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Pan SQ]'s Articles
[Horsfield B]'s Articles
[Zou CN]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: JouAr-2017-065.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.