Controlling factors and geological applications of the drimane-skeleton compound content and composition of crude oils in complex petroleum systems: New insights from the Western Pearl River Mouth Basin, South China Sea
文献类型：期刊论文
| 作者 | Cheng, Peng1,4; Ren, Yuhao2,4; Gai, Haifeng1,4; Liu, Shangli2,4; Cheng, Tao3; Tian, Hui1,4 |
| 刊名 | ORGANIC GEOCHEMISTRY
 |
| 出版日期 | 2025-02-01 |
| 卷号 | 200页码:15 |
| 关键词 | J. Alex Zumberge Drimane-skeleton compounds Crude oil Organic source Depositional environment Drimane maturity parameter Complex petroleum system |
| ISSN号 | 0146-6380 |
| DOI | 10.1016/j.orggeochem.2024.104925 |
| 英文摘要 | Crude oils generally contain drimane-skeleton compounds, but the uncertainty of the main factors controlling drimane distributions limits their effective geological applications, especially in complex petroleum systems. In this study, the drimane-skeleton compound composition and the relative content of each drimane-skeleton compound to C 30 hopane (CDSC) were systematically studied for crude oils in different structural regions of the Western Pearl River Mouth (WPRM) Basin, South China Sea. The results show that the C DSC of crude oil is mainly controlled by its organic sources. Higher C DSC values in crude oil indicates a greater contribution from terrigenous organic matter to their source rocks. For crude oils from source rocks with similar biotic inputs, the C DSC values are controlled mainly by the depositional environment. Higher C DSC values in crude oil correspond to higher concentrations of clay minerals and lower salinities. In addition, the drimane-skeleton compound composition of crude oil is largely controlled by its maturity. The ratios of drimane to homodrimane (Dr/HDr), total rearranged drimane to total drimane and homodrimane (TRDr/TDr), and 8-rearranged drimane to 9-rearranged drimane (8RDr/9RDr) synchronously increase with increasing maturity. These ratios can effectively characterize the maturity of various types of crude oils. The maturity range characterized by the drimane maturity parameters is greater than that characterized by conventional maturity parameters. Correlation diagrams based on drimane parameters and other organic geochemical parameters can be used to classify crude oils and reveal their sources and origins, which has great application potential in complex petroliferous basins, especially in deep and ultra-deep petroleum systems with abundant light oil/condensate. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001394538200001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/81854]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Cheng, Peng |
| 作者单位 | 1.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Tianjin Univ, Sch Marine Sci & Technol, Tianjin 300072, Peoples R China 4.Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Peng,Ren, Yuhao,Gai, Haifeng,et al. Controlling factors and geological applications of the drimane-skeleton compound content and composition of crude oils in complex petroleum systems: New insights from the Western Pearl River Mouth Basin, South China Sea[J]. ORGANIC GEOCHEMISTRY,2025,200:15. |
| APA | Cheng, Peng,Ren, Yuhao,Gai, Haifeng,Liu, Shangli,Cheng, Tao,&Tian, Hui.(2025).Controlling factors and geological applications of the drimane-skeleton compound content and composition of crude oils in complex petroleum systems: New insights from the Western Pearl River Mouth Basin, South China Sea.ORGANIC GEOCHEMISTRY,200,15. |
| MLA | Cheng, Peng,et al."Controlling factors and geological applications of the drimane-skeleton compound content and composition of crude oils in complex petroleum systems: New insights from the Western Pearl River Mouth Basin, South China Sea".ORGANIC GEOCHEMISTRY 200(2025):15. |
入库方式： OAI收割
来源：广州地球化学研究所
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