Study of Effect of Trawl Gear on Submarine Pipeline in the Persian Gulf
Publish place: The 7th International Conference of Offshore Industries
Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
OICIRAN07_011
تاریخ نمایه سازی: 14 شهریور 1401
Abstract:
This paper presents a novel strategy based on the finite element method for prediction of fishing gear interference loads on submarine pipelines. Trawl gear is one of the main factors in the failure of the submarine pipelines. In this paper, the influence of trawl gear on submarine pipeline in the ۱۹th South Pars gas field is located in the Persian Gulf which is having ۳۲” diameter is considered. The FE model is performed using OrcaFlex software includes modeling of seabed, pipeline and trawl gear parameters. To modeling soil and reinforced concrete, non-linear parameters are considered and to validating the models, DNV-RP-F۱۱۱ and results of modeling by SAGE Profile software is used. The results indicated that by increasing free span height, pipeline response is increased but by increasing free span length, only lateral displacement has shown considerable increment. Finally, maximum time of meeting design acceptance criteria was determined for the trawl gear.
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Authors
Sina Taghizadeh Edmollaii
M.Sc. Student, Faculty of Marine Engineering, Petroleum University of Technology, Mahmoudabad, Iran
Pedram Edalat
Assistant Professor, Faculty of Marine Engineering, Petroleum University of Technology, Mahmoudabad, Iran