Effects of source facies and maturity on individual carbon isotopic compositions of oil
文献类型：期刊论文
| 作者 | Zhang, Jingkun3; Cao, Jian2; Xiang, Baoli1 |
| 刊名 | GEOSCIENCE FRONTIERS
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 15期号:5页码:12 |
| 关键词 | Carbon assimilation Water stratification Carbon isotopes Alkaline lacustrine Junggar Basin |
| ISSN号 | 1674-9871 |
| DOI | 10.1016/j.gsf.2024.101846 |
| 通讯作者 | Zhang, Jingkun(zhangjk@nju.edu.cn) |
| 英文摘要 | Carbon isotopes have been used extensively in tracing the sources of oil. However, primary source facies and secondary alteration controls on oil isotopic compositions have not been well resolved, resulting in application uncertainties. A case study was undertaken for an alkaline lacustrine oil system in a lower Permian formation in the Junggar Basin, NW China. Results indicate that increasing maturity causes the carbon isotopic composition to become heavier for only short-middle-chain compounds, whereas source facies -related carbon assimilation controls the compositions of short-, middle-, and long -chain compounds. In particular, light -carbon assimilation during organic -matter degradation makes the isotopic composition lighter, whereas heavy carbon from the water mass makes it heavier. Accordingly, oils in this study area were divided into Type U and Type N oils based on individual compound carbon isotopic compositions, reflecting the difference in source facies in a highly saline and reducing stratified water environment. The results provide a better understanding of the controls on carbon isotopes in oil in sedimentary basins, reducing the uncertainty in oil-source correlation and addressing the origin of oil. CO 2024 China University of Geosciences (Beijing) and Peking University. Published by Elsevier B.V. on behalf of China University of Geosciences (Beijing). This is an open access article under the CC BY -NC -ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| WOS关键词 | NORTHWESTERN JUNGGAR BASIN ; NW CHINA ; CRUDE OILS ; TRIASSIC RESERVOIRS ; GEOCHEMISTRY ; ORIGIN ; HYDROCARBONS ; CONSTRAINTS ; PYROLYSIS ; LIPIDS |
| 资助项目 | National Natural Science Foundation of China[42102148] ; National Natural Science Foundation of China[42230808] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001216468000001 |
| 出版者 | CHINA UNIV GEOSCIENCES, BEIJING |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/43709]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Zhang, Jingkun |
| 作者单位 | 1.PetroChina, Xinjiang Oilfield Co, Res Inst Expt & Testing, Karamay 834000, Xinjiang, Peoples R China 2.Nanjing Univ, Sch Earth Sci & Engn, MOE Key Lab Surficial Geochem, Nanjing 210023, Peoples R China 3.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Jingkun,Cao, Jian,Xiang, Baoli. Effects of source facies and maturity on individual carbon isotopic compositions of oil[J]. GEOSCIENCE FRONTIERS,2024,15(5):12. |
| APA | Zhang, Jingkun,Cao, Jian,&Xiang, Baoli.(2024).Effects of source facies and maturity on individual carbon isotopic compositions of oil.GEOSCIENCE FRONTIERS,15(5),12. |
| MLA | Zhang, Jingkun,et al."Effects of source facies and maturity on individual carbon isotopic compositions of oil".GEOSCIENCE FRONTIERS 15.5(2024):12. |
入库方式： OAI收割
来源：南京地质古生物研究所
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