Title of article
Investigation on the Effects of Uncertainties in Construction Quality on the Bursting Capacity of Submarine Pipelines
Author/Authors
Mehrafrooz, Bahram M.Sc. Student at Offshore Structural engineering - Petroleum University of Technology , Edalat, Pedram Assistant professor - Offshore Structural Engineering Department - Petroleum University of Technology , Dyanati, Mojtaba Visiting Researcher - The University of Akron
Pages
6
From page
51
To page
56
Abstract
Construction quality plays an important role in the integrity of submarine oil
and gas pipelines during their lifetime. Quality of material and quality of
construction contractors are two major contributors to the durability of the
pipelines. The risk regarding quality of material and fabricators accuracy
creates major concerns in durability of pipelines and has a significant impact
on the optimized balance between CAPEX and OPEX in Risk-based integrity
management of pipeline. In this study, the impacts of construction quality and
corresponding uncertainties on the probability of failure of submarine pipelines
are investigated in a reliability analysis using Monte Carlo Simulation. A
sensitivity analysis is also conducted to show the important parameters within
the study. The results show construction quality (i.e. standard deviation)
decreases to 1/3 from 1/2, the probability of failure highly reduces from 5.9e-2
to 7e-5. This indicates a high sensitivity of the probability of failure to structural
uncertainty.
Keywords
Submarine Pipeline , Bursting Failure , Construction Quality , Reliability-Sensitivity Analysis , Monte Carlo Simulation
Journal title
Astroparticle Physics
Serial Year
2017
Record number
2467912
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