Contribution to the Evaluation of Safety Barriers at the Treatment Section 'STRIPPER'

Algeria occupies an important place in all oil-producing countries. However, in recent years, industrial establishments have experienced a rapid increase in the number of major industrial accidents, where fires and explosions cause serious impacts on people, systems and the environment. In order to avoid these dangerous phenomena, industrialists are obliged to put in place risk control measures whose role is to prevent the occurrence of such phenomena or to limit their consequences. Thus, and because of the unsatisfactory safety results achieved during the past period, The Algerian hydrocarbons company (Sonatrach) has tried to reinforce the security barriers at these industrial sites. From there the objective of this paper appears that is the evaluation of these safety barriers by checking their performances through the development of quantitative or semi-quantitative approaches. This work is devoted to the application of a combination of three methods: HAZOP, ADE and LOPA at the level known as the "Stripper" of the TFT industrial zone. The collection of information on the Stripper system is ensured by the two methods HAZOP and ADE. However, the LOPA method is used to evaluate protective layers whose objective is to control and improve the system's security barriers against future aggressions and undesirable incidents.