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title

FATIGUE ANALYSIS DUE TO MULTI-SPANNING SUBSEA PIPELINES IN IRANIAN SOUTH PARS GAS FIELD

Credit to Download: 0 | Page Numbers 2 | Abstract Views: 74
Year: 2016
COI code: ICOPMAS12_210
Paper Language: English

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Authors FATIGUE ANALYSIS DUE TO MULTI-SPANNING SUBSEA PIPELINES IN IRANIAN SOUTH PARS GAS FIELD

  Abdolrahim Taheri - Assistant Professor, Petroleum University of Technology
  Mohammad Mahdi Shabani - M.Sc. Student, Petroleum University of Technology

Abstract:

The subsea Pipelines plays an important role in the offshore industries which is usually installed to transport the production from subsea wells to pipeline end manifold(PLEM) or export production from the offshore facilities to the onshore terminations. There are some methods to decrease the span length such as change route,or adjust wall thickness or grade of material. Lower spans by using man-made supports may reduce VIV fatigue damage but encountering harsh climate is unavoidable forsome cases and free spans may occur [[1] [2] ]. Subsea pipeline free spans are mainly triggered by seabed unevenness/scouring or artificial supports/rock beams, etc. The vortex shedding frequency caused by a flow normal to a free span is governed by the pipeline outer diameter, the current velocity and the Strouhal’s number. Once the shedding frequency reaches the natural frequency of a span then it starts to vibrate and VIV occur. So free span analysis has an ineligible effect on the design of subsea pipeline[3] . In this paper, the main objective is to present a procedure for the multi-spans fatigue assessment of existing submarine pipeline in Iran South Pars Gas Fieldby using the DNV-RP-F105 and ABAQUS software.

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COI code: ICOPMAS12_210

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Taheri, Abdolrahim & Mohammad Mahdi Shabani, 2016, FATIGUE ANALYSIS DUE TO MULTI-SPANNING SUBSEA PIPELINES IN IRANIAN SOUTH PARS GAS FIELD, 12th International Conference on Coasts, Ports and Marine Structures, تهران, سازمان بنادر و دريانوردي, https://www.civilica.com/Paper-ICOPMAS12-ICOPMAS12_210.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Taheri, Abdolrahim & Mohammad Mahdi Shabani, 2016)
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Type: state university
Paper No.: 1811
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