Risk analysis of gas leakage in gas pressure reduction station and its consequences: A case study for Zahedan

Abstract

Industrial accidents have increased the importance of dealing with the risks of toxic exposure, fire and explosion. Despite the measures taken in the chemical industry to prevent accidents, the accidents occur often due to human error or process faults during repairs. Although several studies have been conducted on the accidents in the process industry, no research has modeled the risks caused by the leakage of toxic substances in the gas pressure reduction station. The consequences of gas leak and fire in Zahedan's gas pressure reduction station were investigated in Iran. This research aims to determine the safe range of the station and observe the safety measures required for the gas pressure reduction station in Zahedan. For modelling gas leak and fire, the ALOHA software was used to display the threat zone. In this research, with respect to the environmental data, the desired scenario was modeled. The results, based on two scenarios of gas leak and fire in both hot and cold seasons, indicate that the gas leak scenario in hot seasons and the fire scenario in cold seasons influence a larger region.

Comparative Analysis of Ultrasonic and Traditional Gas-Leak Detection Systems in the Process Industries: A Monte Carlo Approach

“…The mean 'm' was determined to be 157.93 based on the study area, the Fire Insurer Laboratories of Korea (FILK), and the standard deviation was calculated to be 124.92, both of which were then input into the Monte Carlo model. Equation (5) relates to the SD1 estimates for gas-leak detectors and represents the percentage ratio of detected occurrences at the final time of 720 h. 'W t ' refers to the wind direction over time, 'Min' is the minimum detection standard, and 'Max' is the maximum detection standard. 'Min' and 'Max' are depicted as values of plus or minus 5-10, based on the wind angles shown in Figure 13a,b.…”

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Determining the optimal method to upgrade shipyard infrastructures for overhaul of offshore drilling rigs using genetic algorithm: A case study for ISOICO

“…The oil industry is one of the most important industries in the world and in Iran, which plays an important role in determining the level of national power and international prestige. 13 The market of the offshore drilling industry can be divided into five separate sections, which are in order of market value: owning rigs and performing drilling operations, building new rigs, buying, and selling second-hand rigs, repairing and upgrading new drilling rigs, and scrapping outdated rigs. It is notable that the volume of financial flows in the upgrade and repair of existing rigs was equal to one to five billion dollars between 2005 and 2012.…”

Risk assessment in Iranian oil and gas construction industry: a process approach

“…It can be due to inadequate risk management at the planning stage (Rui et al , 2017). Oil and gas projects are exposed to numerous internal and external risks (Dadkani et al , 2021). This is due to many stakeholders involved in the relevant contracts and high technical complexity.…”