During 2004–2005, three consecutive category-5 storms hit the central region of Gulf of Mexico (GOM) and damaged numerous drilling and production platforms. Since then, a number of forensic studies have been conducted to better understand the failure causes and mechanism. In this study, a representative deepwater semi-submersible Mobile Offshore Drilling Unit (MODU) that suffered a mooring failure and went adrift during the hurricane Ivan was selected for numerical forensic study. The platform responses and progressive mooring-line failure are simulated in the time domain. A time-domain vessel-mooring coupled dynamic analysis computer program is used to simulate the sequence of progressive mooring-line failure of the MODU in the hindcast Ivan environment, in which the wind, wave, and currents were non-collinear. The case of non-collinear environment is also compared with that of collinear environment. The numerical prediction and simulated results are compared with the available field-analysis data.
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ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering
May 31–June 5, 2009
Honolulu, Hawaii, USA
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4341-3
PROCEEDINGS PAPER
Progressive Mooring-Line Failure of a Deepwater MODU in Hurricane Conditions
Zhi Zhang,
Zhi Zhang
Texas A&M University, College Station, TX
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M. H. Kim,
M. H. Kim
Texas A&M University, College Station, TX
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E. G. Ward
E. G. Ward
Texas A&M University, College Station, TX
Search for other works by this author on:
Zhi Zhang
Texas A&M University, College Station, TX
M. H. Kim
Texas A&M University, College Station, TX
E. G. Ward
Texas A&M University, College Station, TX
Paper No:
OMAE2009-79794, pp. 711-716; 6 pages
Published Online:
February 16, 2010
Citation
Zhang, Z, Kim, MH, & Ward, EG. "Progressive Mooring-Line Failure of a Deepwater MODU in Hurricane Conditions." Proceedings of the ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. Volume 1: Offshore Technology. Honolulu, Hawaii, USA. May 31–June 5, 2009. pp. 711-716. ASME. https://doi.org/10.1115/OMAE2009-79794
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