Knowledge Management System of Institue of Mechanics, CAS
| The effects of gas hydrate dissociation on the stability of pipeline in seabed | |
Wang SY(王淑云) ; Zheng W; Lu XB(鲁晓兵); Li QP(李清平); Shuyun, W.
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| Source Publication | Proceedings of the International Offshore and Polar Engineering Conference |
| 2009 | |
| Conference Name | 19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE |
| Conference Date | June 21, 2009 - June 26, 2009 |
| Conference Place | Osaka, Japan |
| Abstract | Based on an assumed vertical pipeline in seabed, which contains sand and gas hydrate sediment, the deformation and stress of pipeline and sediment are numerically simulated with the different area of gas hydrate dissociation by using the business software ABAQUS. The effects of gas hydrate dissociation area and the thickness of overlaying sand sediment on the stability of pipeline are estimated. It is shown that gas hydrate dissociation obviously affects the deformation of pipeline and sediment. With the expansion of dissociation area, the deformation of pipeline and sediment increase obviously, the shear stress and the stress yielding area in sediment increase too. The pipeline is elastic and stable first, and then becomes to bend and finally be whole instability. When the thickness of overlaying sand sediment increases, the deformation of pipeline and surrounding sediment also increase because of the gravity and the sliding force of overlaying sand sediment. Copyright © 2009 by The International Society of Offshore and Polar Engineers (ISOPE). |
| Keyword | Business Software Deformation And Stress Simulation Stability Sliding Force |
| ISBN | 9781880653531 |
| Indexed By | EI |
| Language | 英语 |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/60468 |
| Collection | 水动力学与海洋工程重点实验室(2009-2011) |
| Corresponding Author | Shuyun, W. |
| Recommended Citation GB/T 7714 | Wang SY,Zheng W,Lu XB,et al. The effects of gas hydrate dissociation on the stability of pipeline in seabed[C]Proceedings of the International Offshore and Polar Engineering Conference,2009. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Ca2009-067.pdf（2762KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Download | ||
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