Consequences of Failure Estimation for Oil and Gas Spills

This paper reviews the consequence of failure (CoF) estimation for oil and gas spills based from Quantitative Risk Assessment (QRA) study. The main purpose of QRA is to determine the target reliabilities for each different pipeline system segments; and the purpose of CoF is to determine the failure consequences including amount and rate of oil spill and gas spill, affected area, delaying mission or any other measurement of negative impact. However, this paper will focused on determination of oil spill slicked and gas spill leakage within a leakage in a pipeline system. Then, a suitable action can be performed based on these calculations and data to avoid the consequences of failure such as number of people effected, production cost affected, environment area affected, etc. In some cases, event tree analysis will be performed especially for consequences of gas spill. Oil spill modeling is performed by using ADIOS software to stimulate the oil spilled evaporation, while oil slick calculation and gas spill leakage modeling is from common mathematical software to calculate the failure consequences. The purpose of both modeling is to simulate the potential spills with varying leakage sizes at different sections of the pipeline systems.Copyright © 2012 by ASME