Abstract
Gas pipelines are environmentally sensitive because they cross varied fields, rivers, forests, populated areas, desert, hills and offshore and also different parameters in gas transmission progresses are effective. Underground gas transmission pipelines have been grown as one of the low risk methods with low cost in the world specially in middle east and Europe. Physical and chemical properties of liquid gas, pipeline properties and also its environmental condition are the main factors of increasing the technical and environmental risk. In this article the quantitative risk assessment has been done by using GIS and overlaying the information layers. For this purpose, all effective risk factors were identified and projected. In order to achieve the same and comparable results, the entire pipeline route was divided into 500 meter intervals and the risk was calculated in each interval, finally the scores of these intervals such as each criterion risk was calculated. The case study of the article is Savadkooh to PoleSefid pipeline in Mazandaran.
Highlights
Natural gas is one of the most important energy carries [2,9,13].Considering the fact that Islamic Republic of Iran has 14 thousand kilometers of oil pipeline and more than 22 thousand kilometers of gas transmission pipeline, it has the longest network of oil pipeline in Middle East.Gas transmission in order to deliver the economic and almost clean energy from producing sources to final consumers is one the most important tasks
Gas pipelines are environmentally sensitive because they cross varied fields, rivers, forests, populated areas, desert, hills and offshore and different parameters in gas transmission progresses are effective
Maps were divided into 500-meter intervals, scoring was done based on environmental conditions
Summary
Natural gas is one of the most important energy carries [2,9,13].Considering the fact that Islamic Republic of Iran has 14 thousand kilometers of oil pipeline and more than 22 thousand kilometers of gas transmission pipeline, it has the longest network of oil pipeline in Middle East. Gas transmission in order to deliver the economic and almost clean energy from producing sources to final consumers is one the most important tasks. Pipelines represent a linear risk source that can create controversial challenges in gas industry of the country. Transmission pipelines carrying natural gas are on secure industrial sites, and routed across the land. Considering all the issues which have been mentioned above, the important issue is transferring the energy to the domestic and foreign consumers. A review on statistics of occurred accidents causes make the necessity of attention, investigation, evaluation, planning, management and monitoring of these pipelines clear
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