IJOCE (International Journal of Offshore and Coastal Engineering)
Vol 5, No 2 (2021)

Risk Based Inspection using API RP 580 and DNV RP F116 Towards Free Spanning Pipelines

Yoyok Setyo Hadiwidodo (Institut Teknologi Sepuluh Nopember)
Iftinaniffah Qonitah (Institut Teknologi Sepuluh Nopember)
Daniel Mohammad Rosyid (Institut Teknologi Sepuluh Nopember)



Article Info

Publish Date
01 Nov 2021

Abstract

The free span that occurs in the subsea pipeline can cause fatigue due to vortex induced vibration and local buckling. From the risk of failure that may occur, a risk-based inspection scheduling required. The 14" Underwater pipe belongs to PT. The X located in the Madura Strait is used to transmit gas from the CPP to ORF with a length of 65 km which has 554 free spans. In scheduling inspections, the commonly used codes are API RP 580 and DNV RP F116. This journal will discuss the difference between these two codes. Reliability calculations use Monte Carlo simulation with VIV failure mode and local buckling failure mode. The consequences of failure are reviewed on safety, environmental and asset aspects. API RP 580, shows the environmental aspect and the safety aspect of both modes of failure has the next inspection in 6 years, while the asset aspect is 3 years. At DNV RP F116, scheduling inspection of safety aspect on both modes is 3 years and environmental aspects is a year later, while the asset aspect would be better to change the pipe

Copyrights © 2021






Journal Info

Abbrev

ijoce

Publisher

Subject

Engineering

Description

IJOCE, International Journal of Offshore and Coastal Engineering, is an academic journal on the issues related to offshore, coastal and ship science, engineering and technology. Published quarterly in February, May, August, and ...