| Influence of cold-seep environments on the kinetics of methane hydrate formation | |
Zhang, Yitong1,2,4,5; Xi, Shichuan1,2 ; Du, Zengfeng1,2,4,5; Luan, Zhendong1,2,4,5; Zhang, Xin1,2,3,4,5,6
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| 2023-09-01 | |
| 发表期刊 | MARINE AND PETROLEUM GEOLOGY
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| ISSN | 0264-8172 |
| 卷号 | 155页码:9 |
| 通讯作者 | Zhang, Xin([email protected]) |
| 摘要 | Methane hydrate (MH) is widely distributed in active deep-sea cold-seep areas. The complex environment of cold seeps influences MH formation. Investigating the effects of cold-seep environments on MH formation can provide an in-depth understanding of the formation mechanism of MH and kinetic process of cold-seep development and evolution. In this study, multiple MH formation experiments were conducted in the laboratory to investigate the effects of a cold-seep environment on the kinetics of hydrate formation. Considering the cold-seep fluid and bottom seawater as the samples, MH was formed in the capillary under the same pressure-temperature conditions as those in cold-seep environments. The entire process of MH formation was recorded by time-series Raman spectra and video, and the results demonstrated the promotion of MH formation by solid particles, especially authigenic carbonates. Compared to 20 min in seawater, the induction time of 2 min in cold-seep fluids indicated promotion of hydrate formation by tiny particles and by its lower salinity. Notably, the reduction in salinity in the cold-seep fluid may be attributed to the dilution effect of pure water produced by hydrate decomposition, indicating the presence of a hydrate memory effect. Overall, our results are in agreement with those of the in situ hydrate formation experiment in a cold-seep environment. A model of hydrate formation in a cold-seep environment has been proposed, which can aid in understanding the kinetics of hydrate formation. |
| 关键词 | Methane hydrate Cold seep environment In situ Raman spectroscopy Hydrate formation |
| DOI | 10.1016/j.marpetgeo.2023.106401 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[92058206]; National Natural Science Foundation of China[52001303]; National Natural Science Foundation of China[42221005]; Strategic Priority Research Program, CAS[XDB42040302]; Young Taishan Scholars Program[tsqn201909158]; Key Project of Ocean Research Center, Chinese Academy of Sciences[COMS2020J03] |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS记录号 | WOS:001041851900001 |
| 出版者 | ELSEVIER SCI LTD |
| WOS关键词 | IN-SITU RAMAN ; AUTHIGENIC CARBONATES ; GAS HYDRATE ; FORMOSA RIDGE ; SEA-FLOOR ; DISSOCIATION ; PHASE ; WATER |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/182681 |
| 专题 | 海洋地质与环境重点实验室 深海极端环境与生命过程研究中心 |
| 通讯作者 | Zhang, Xin |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China 3.Lab Marine Geol, LaoShan Lab, Qingdao 266061, Peoples R China 4.Chinese Acad Sci, CAS Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao 266071, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 第一作者单位 | 深海极端环境与生命过程研究中心 |
| 通讯作者单位 | 深海极端环境与生命过程研究中心 |
| 推荐引用方式 GB/T 7714 | Zhang, Yitong,Xi, Shichuan,Du, Zengfeng,et al. Influence of cold-seep environments on the kinetics of methane hydrate formation[J]. MARINE AND PETROLEUM GEOLOGY,2023,155:9. |
| APA | Zhang, Yitong,Xi, Shichuan,Du, Zengfeng,Luan, Zhendong,&Zhang, Xin.(2023).Influence of cold-seep environments on the kinetics of methane hydrate formation.MARINE AND PETROLEUM GEOLOGY,155,9. |
| MLA | Zhang, Yitong,et al."Influence of cold-seep environments on the kinetics of methane hydrate formation".MARINE AND PETROLEUM GEOLOGY 155(2023):9. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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