Methanogenic pathway of the Quaternary biogenic gases in the Qaidam basin, China
文献类型：期刊论文
| 作者 | Zhang, XB; Song, CP; Qi, YL; Duan, Y; Li, XF; Ma, LY; Zhang, MZ |
| 刊名 | GEOCHEMICAL JOURNAL
 |
| 出版日期 | 2005 |
| 卷号 | 39期号:5页码:411-416 |
| 关键词 | Biogenic Gas Co2 Reduction Pathway Qaidam Basin |
| ISSN号 | 0016-7002 |
| 文献子类 | Article |
| 英文摘要 | The Quaternary biogenic gas province in the east of the Qaidam basin is the largest biogenic gas province in China. We collected 21 gas samples from the different gas pay beds of the Sebei 1 gas field and the Sebei 2 gas field, measured their chemical compositions and carbon isotopes, and emphatically discuss their methanogenic pathway and significance. The CH, and CO2 of the biogenic gases were enriched in C-13 with increasing depth, which indicates that the gases are CO2 reduction-derived gases. The delta C-13(1), delta C-13(CO2) and delta D values of the biogenic gases approximate the range of the corresponding values of CO2 reduction gases. The values fall in the CO2 reduction field on genetic diagrams based on delta C-13(1), 313 C-CO2 and delta D values of natural gases. The fractionation coefficients (alpha c) of the carbon isotope of the CH4 and CO2 of the biogenic gases are more than 1.005, characteristic of a CO2 reduction pathway. During the Quaternary due to the dry climate, low temperature, high sedimentation rate and a high content of sulfate in the east of the Qaidam basin, methane bacteria could not propagate until sediments were buried at deeper depth. These conditions benefit a CO2 reduction pathway of the gases. These results are of importance in discussing the biogenic gas origin and formation conditions, determining the methods and conditions for biogenic gas simulation, accessing biogenic gas reserves, establishing a poolforming model and selecting targets for natural gas exploration. |
| WOS关键词 | METHANE ; SEDIMENTS ; ORIGINS ; SEA ; CO2 |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000233265500003 |
| 出版者 | GEOCHEMICAL SOC JAPAN |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/65142]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhang, XB |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Geol, Inst Geol & Geophys, Lanzhou 730000, Gansu, Peoples R China 2.Univ Sci & Technol China, Grad Sch, Hefei 100049, Peoples R China 3.Lanzhou Univ, Inst Resource & Environm, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, XB,Song, CP,Qi, YL,et al. Methanogenic pathway of the Quaternary biogenic gases in the Qaidam basin, China[J]. GEOCHEMICAL JOURNAL,2005,39(5):411-416. |
| APA | Zhang, XB.,Song, CP.,Qi, YL.,Duan, Y.,Li, XF.,...&Zhang, MZ.(2005).Methanogenic pathway of the Quaternary biogenic gases in the Qaidam basin, China.GEOCHEMICAL JOURNAL,39(5),411-416. |
| MLA | Zhang, XB,et al."Methanogenic pathway of the Quaternary biogenic gases in the Qaidam basin, China".GEOCHEMICAL JOURNAL 39.5(2005):411-416. |
入库方式： OAI收割
来源：地质与地球物理研究所
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