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Open AccessArticle

Failure Analysis of Topside Facilities on Oil/Gas Platforms in the Bohai Sea

1
Faculty of Vehicle Engineering & Mechanics, Dalian University of Technology, Dalian 116024, China
2
School of Ocean Science & Technology, Dalian University of Technology, Panjin 124221, China
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2019, 7(4), 86; https://doi.org/10.3390/jmse7040086
Received: 22 February 2019 / Revised: 19 March 2019 / Accepted: 25 March 2019 / Published: 27 March 2019
(This article belongs to the Special Issue Marine Structures)
The jacket platform in the Bohai Sea oilfield is an important engineering development, offering design alternatives in this economically important region. However, ice-induced vibration in cold areas threatens the safety and operation of these platforms. On two occasions, intense ice-induced vibrations triggered the rupture of a well’s blow down pipeline, loosening the flanges on the Bohai platform, and leading to the ejection of high-pressure natural gas. Subsequent mechanical analysis of the failed parts helped define the mechanism of failure and identified the failure criteria, based on a prototype structure monitoring system. The analysis revealed that the deck’s inertial force, which resulted in ice-induced steady-state vibration, was the major cause of the accident. Three fixed cones were thus installed on the platform the following winter, effectively reducing the vibrations. View Full-Text
Keywords: jacket platform; ice-induced vibration; failure mechanism; ice-resistant cone jacket platform; ice-induced vibration; failure mechanism; ice-resistant cone
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MDPI and ACS Style

Yu, S.; Zhang, D.; Yue, Q. Failure Analysis of Topside Facilities on Oil/Gas Platforms in the Bohai Sea. J. Mar. Sci. Eng. 2019, 7, 86.

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