An Assessment of Greenhouse Gas Emissions Caused by the Fire of Strategic Diesel Tanks and Providing an Environmental Management Plan Based on the McKinsey 7S Model

Storage tanks for crude oil and petroleum products are always prone to various accidents such as fire and explosion. Depending on the volume and content of these tanks, these incidents can lead to environmental consequences. Ahvaz oil field is considered the third largest oil field in the world with many storage tanks. The present research was conducted to evaluate the emission of greenhouse gases caused by the fire of strategic diesel tanks in the Shahid Almasi field and provide an environmental management plan based on the McKinsey method in 2022.

In this descriptive-analytical study, the risks of fire and tank explosion accidents were identified and evaluated in the field based on the hazard analysis and operation management (HAZOP) method. The technical information on the reservoirs was obtained from the National Iranian South Oil Company. The emission coefficients of the main greenhouse gases (CO2, CO, CH4, and N2O) were based on the OAQPS standard, and the global warming potential was calculated in the scenarios according to Flessa et al. Then, the McKinsey 7S method was used to evaluate the state of environmental management. The validity and reliability of the McKinsey Questionnaire were assessed by the content method and Cronbach’s alpha method, respectively, using SPSS 19.

The explosion of strategic fuel tanks due to an attack, wall decay, and human error with priority of 200, 168, and 120 were the most important risks of fuel storage. The results of the greenhouse gas emissions analysis due to accidents showed that the total global warming potential (GWP) for the fire of diesel tanks in the Koreyt Camp of Ahvaz is 8 277 143 kg of CO2 equivalent. The results of a gap analysis by the McKinsey method also revealed that the lowest average score was related to the strategy dimension (3.67), and the highest efficiency was related to the system dimension (4.82).

The occurrence of an accident for diesel storage tanks in the Koreyt Camp complex in the Ahvaz oil field led to significant environmental effects such as the release of air pollutants and greenhouse gases.