Chapter
Jun 25, 2013
Stress Analysis of Shallow Sea Gas Pipelines
Authors: Xiaonan Wu [email protected], Yi Jiang [email protected], Hongfang Lu [email protected], Shijuan Wu [email protected], and Xiaoxiao Chen [email protected]Author Affiliations
Publication: Pipelines 2013: Pipelines and Trenchless Construction and Renewals—A Global Perspective
Abstract
Submarine gas pipelines usually operate in complicated and changeable regional environments and can generate corresponding stresses and displacement under the influence of internal pressures, earthquakes, waves, and other loadings. An unevenly-distributed stress will lead to shallow sea gas pipeline failure easily. Therefore, it is necessary to research the stress conditions of the shallow sea gas pipeline and check whether it can meet the safety requirements or not. In this paper, we analyze the stress conditions of shallow sea gas pipelines of two laying modes in XX areas using stress analysis software CAESAR II, discuss the loading conditions under the operating condition, and determine the position of the key point where pipeline damage is most likely to happen, the bend pipe. We concluded that the underground method and above the sea-bed method are safe. Our research provides a theoretical basis for the construction of shallow sea gas pipelines and has very important research significance and engineering value.
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© 2013 American Society of Civil Engineers.
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Published online: Jun 25, 2013
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School of Petroleum Engineering, Southwest Petroleum University, Chengdu Sichuan 610500, China. E-mail: [email protected]
School of Petroleum Engineering, Southwest Petroleum University, Chengdu Sichuan 610500, China. E-mail: [email protected]
School of Petroleum Engineering, Southwest Petroleum University, Chengdu Sichuan 610500, China. E-mail: [email protected]
School of Petroleum Engineering, Southwest Petroleum University, Chengdu Sichuan 610500, China. E-mail: [email protected]
School of Electronic and Information Engineering, Beihang University, Beijing 100191, China. E-mail: [email protected]
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