Genetic identification of light oils and condensates using δD indices of C7 hydrocarbons: A case study in the Tarim Basin, NW China
文献类型：期刊论文
| 作者 | Deng, Hanyu1,3,4; Zhang, Haizu2; Zhang, Yiman1,3,4; Chen, Naidong2; Mo, Tao2; Cheng, Bin1,3; Liao, Zewen1,3 |
| 刊名 | INTERNATIONAL JOURNAL OF COAL GEOLOGY
 |
| 出版日期 | 2023-11-01 |
| 卷号 | 279页码:11 |
| 关键词 | C 7 light hydrocarbons Stable hydrogen isotope Light oil and condensate Source rock Tarim Basin |
| ISSN号 | 0166-5162 |
| DOI | 10.1016/j.coal.2023.104372 |
| 英文摘要 | Generally, the low concentration and homogenisation of traditional biomarkers in light oil and condensate (LOC) lead to uncertainties in their indicative significance of the parental origin of crude oils. Here, we focus on the component and stable hydrogen isotope (delta D) distribution of C-7 light hydrocarbons, including n-heptane (nC7), methylcyclohexane (MCH) and toluene (Tol), to identify the source rocks of LOC. In total, 114 LOCs whose source rocks are believed to be marine, lacustrine or coal facies in the Tarim Basin, NW China, are selected for the case study. The results demonstrate that the delta D-MCH, delta D-Tol and delta D-nC7 values in the LOCs from marine, lacustrine and coal facies exhibited strong, slight and inverse 'V' distributions, respectively, on their Line Charts. By analysing the differences among these values, we found that the Delta delta DnC7-Tol and Delta delta D(Tol-MCH )values in the LOCs show good linear correlation (R-2 = 0.8) and have the potential to distinguish the sedimentary facies of the source rocks of these oils. The Delta delta DnC7-Tol values for marine, lacustrine and coal-formed LOCs were >6%o, from-20%o to 20%o, and <-20%o, respectively. Further, the Delta delta DTol-MCH values in the marine, lacustrine and coal-formed LOCs are < -5%o, from-30%o to %o, and > 0%o, respectively. Thus, the plot of Delta delta DnC7-Tol - Delta delta DTol-MCH can effectively distinguish among marine, lacustrine and coal-formed LOCs. |
| WOS研究方向 | Energy & Fuels ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001091343900001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/78835]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Cheng, Bin |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 2.Tarim Oilfield Co, PetroChina, Res Inst Petr Explorat & Dev, Korla 841000, Peoples R China 3.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Deng, Hanyu,Zhang, Haizu,Zhang, Yiman,et al. Genetic identification of light oils and condensates using deltaD indices of C7 hydrocarbons: A case study in the Tarim Basin, NW China[J]. INTERNATIONAL JOURNAL OF COAL GEOLOGY,2023,279:11. |
| APA | Deng, Hanyu.,Zhang, Haizu.,Zhang, Yiman.,Chen, Naidong.,Mo, Tao.,...&Liao, Zewen.(2023).Genetic identification of light oils and condensates using δD indices of C7 hydrocarbons: A case study in the Tarim Basin, NW China.INTERNATIONAL JOURNAL OF COAL GEOLOGY,279,11. |
| MLA | Deng, Hanyu,et al."Genetic identification of light oils and condensates using δD indices of C7 hydrocarbons: A case study in the Tarim Basin, NW China".INTERNATIONAL JOURNAL OF COAL GEOLOGY 279(2023):11. |
入库方式： OAI收割
来源：广州地球化学研究所
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