Journal of Marine Science and Technology

Journal of Marine Science and Technology

Technical Comparison of Offshore Oil Terminals Under the Effect of the Persian Gulf Environmental Conditions

Document Type : Original Manuscript

Authors
Esmaeil Hasanvand
Pedram Edalat
Mechanical Engineering Department, Abadan Faculty of Petroleum, Petroleum University of Technology, Abadan, Iran.
10.22113/jmst.2021.233123.2374
Abstract
Offshore oil terminals are used as a cheaper and safer solution than shore terminals for unloading and loading tankers. There are different types of offshore terminals. Therefore, comparing the dynamic response of these terminals will be effective in identifying their strengths and weaknesses. The present study is to compare the dynamic response of the structures of three common offshore oil terminals, including CALM, SALM, and CMBM in environmental conditions under the Persian Gulf region. Simulation is used in OrcaFlex software to obtain structural responses including the tension created in the mooring line and hawser, motion the tankers connected to them. The results show that considering the same operating conditions, the maximum tensions created in the SALM terminal mooring are 2.7 and 1.3 times higher than the CALM and CMBM terminals, respectively. Also, the maximum tension in the SALM terminal hawser is 1.5 and 4.3 times higher in the CALM and CMBM terminals, respectively. As the environmental conditions become more critical, the SALM terminal mooring shows the most stability. By increasing the tonnage of the tankers from 45,000 to 320,000 tons, the maximum tension created in the CMBM mooring has the least change; This is while the maximum tension created in the terminal mooring of CALM and SALM increases by 100% and 156%, respectively. Comparing the displacement created in the tankers (during operation), it results that the displacement in the tanker connected to the CMBM terminal has a minimum size and the displacement in the tankers connected to CALM and SALM is almost the same.
Keywords
Floating oil terminals
coupled dynamic analysis
mooring system
Riser

Subjects

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Journal of Marine Science and Technology
Volume 22, Issue 3
Autumn 2023
Pages 76-93

  • Receive Date 07 July 2020
  • Revise Date 17 July 2021
  • Accept Date 19 July 2021
  • Publish Date 23 September 2023