Constraining multi-stage and protracted oil generation of alkaline lacustrine source rocks by heteroatomic compounds
文献类型：期刊论文
| 作者 | Zhang, Jingkun3; Cao, Jian2; Xiang, Baoli1; Zhou, Ni1; Ma, Wanyun1; He, Dan1 |
| 刊名 | ORGANIC GEOCHEMISTRY
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 184页码:12 |
| ISSN号 | 0146-6380 |
| 关键词 | Nitrogen-containing compounds Heteroatomic geochemistry Alkaline lacustrine source rocks Fengcheng Formation Junggar Basin |
| DOI | 10.1016/j.orggeochem.2023.104668 |
| 通讯作者 | Cao, Jian(jcao@nju.edu.cn) |
| 英文摘要 | It is unclear whether source rocks deposited in ancient alkaline lakes undergo multiple stages of hydrocarbon generation, particularly of oils. In this study, the lower Permian Fengcheng Formation in the Junggar Basin, China, was investigated using the geochemistry of heteroatomic species, with a focus on N-containing com-pounds, by negative-ion electrospray high-resolution Fourier transform ion cyclotron resonance mass spec-trometry. The maturity parameters based on N-containing compounds (e.g., C0-5/C15-35-DBE 12 N1 and C0-5/ C15-35-DBE 15 N1) and aromatic hydrocarbons (TMNr) reveal progressive generation of mature to highly mature crude oils. The polymerization index P1 ([DBE 18 + DBE 15]/DBE 12_N1), alkylation index R1 (RC6_ 35/RC0-5), and paleo-salinity index (beta carotane/nCmax) of the Fengcheng Formation source rocks suggest that the high salinity inhibited molecular polymerization of organic matter and prolonged the oil generation peak, which produced highly mature crude oils in the late stages of hydrocarbon generation. Therefore, alkaline lacustrine source rocks undergo multiple stages of protracted oil generation, which results in a longer oil window and higher threshold for gas generation than in the case of the classic Tissot model. The results highlight the oil generation potential of deep basins containing alkaline lacustrine source rocks and highly mature organic matter, which also have a lower gas-generation potential than previously thought. |
| WOS关键词 | NORTHWESTERN JUNGGAR BASIN ; ACIDIC NSO COMPOUNDS ; CRUDE OILS ; NW CHINA ; FENGCHENG FORMATION ; MATURITY ; PETROLEUM ; MIGRATION ; PYROLYSIS ; ORIGIN |
| 资助项目 | National Natural ScienceFoundation of China[42102148] ; National Natural ScienceFoundation of China[42230808] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:001074590900001 |
| 资助机构 | National Natural ScienceFoundation of China |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/42730]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Cao, Jian |
| 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, State Key Lab Mineral Deposits Res, Nanjing 210023, Jiangsu, 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,et al. Constraining multi-stage and protracted oil generation of alkaline lacustrine source rocks by heteroatomic compounds[J]. ORGANIC GEOCHEMISTRY,2023,184:12. |
| APA | Zhang, Jingkun,Cao, Jian,Xiang, Baoli,Zhou, Ni,Ma, Wanyun,&He, Dan.(2023).Constraining multi-stage and protracted oil generation of alkaline lacustrine source rocks by heteroatomic compounds.ORGANIC GEOCHEMISTRY,184,12. |
| MLA | Zhang, Jingkun,et al."Constraining multi-stage and protracted oil generation of alkaline lacustrine source rocks by heteroatomic compounds".ORGANIC GEOCHEMISTRY 184(2023):12. |
入库方式： OAI收割
来源：南京地质古生物研究所
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