| Methane hydrate growth velocity in seepage system of qiongdongnan basin, south china sea | |
| Guan Jin-An1,2; Fan Shuan-Shi3; Liang De-Qing1; Ning Fu-Long4 | |
| 刊名 | Chinese journal of geophysics-chinese edition
 |
| 2009-03-01 | |
| 卷号 | 52期号:3页码:765-775 |
| 关键词 | Seepage system Diffusion system Methane hydrate Growth velocity Cementation velocity |
| ISSN号 | 0001-5733 |
| 通讯作者 | Guan jin-an(guanja@ms.giec.ac.cn) |
| 英文摘要 | The occurrences of diapirs, gas-filled zones and gas plumes in seawater in qiongdongnan basin of south china sea indicate that there may exist seepage system gas-hydrate reservoirs. assuming there has a methane venting zone of 1500 m in diameter, and the methane flux is 1000 kmol/a, and the temperature of methane hydrate-bearing sediments ranges from 3 degrees c to 20 degrees c, then according to the hydrate film growth theory, by numerical simulation, this paper computes the temperatures and velocities in 0 mbsf, 100 mbsf, 200 mbsf, 425 mbsf over discrete length, and gives the change charts. the results show that the cementation velocity in sediments matrix of methane hydrate is about 0.2 nm/s, and the seepage system will evolve into diffusion system over probably 35000 years. meanwhile, the methane hydrate growth velocity in leakage system is 20 similar to 40 times faster than in diffusion system. |
| WOS关键词 | GAS HYDRATE ; STABILITY ZONE ; FILM GROWTH ; BUBBLES ; WATER ; OREGON ; MARGIN ; RIDGE |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000265004300020 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2400310 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Guan Jin-An |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.S China Univ Technol, MOE, Key Lab Enhanced Heat Transfer & Energy Conservat, Guangzhou 510640, Peoples R China 4.China Univ Geosci, Fac Engn, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guan Jin-An,Fan Shuan-Shi,Liang De-Qing,et al. Methane hydrate growth velocity in seepage system of qiongdongnan basin, south china sea[J]. Chinese journal of geophysics-chinese edition,2009,52(3):765-775. |
| APA | Guan Jin-An,Fan Shuan-Shi,Liang De-Qing,&Ning Fu-Long.(2009).Methane hydrate growth velocity in seepage system of qiongdongnan basin, south china sea.Chinese journal of geophysics-chinese edition,52(3),765-775. |
| MLA | Guan Jin-An,et al."Methane hydrate growth velocity in seepage system of qiongdongnan basin, south china sea".Chinese journal of geophysics-chinese edition 52.3(2009):765-775. |
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