Probability of receptor lethality in blowout of sour gas wells

By the Fluent software on the high-performance cluster system of parallel computing, the computational fluid dynamics method was applied to simulate the temporal and spatial evolvement of hydrogen sulfide's concentration during the blowout of a typical natural gas well with hydrogen sulfide in...

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Main Authors: Wu Qingshan, Qian Xinming, Guo Zaifu
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2009-10-01
Series:Petroleum Exploration and Development
Online Access:http://www.sciencedirect.com/science/article/pii/S1876380409601518
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author Wu Qingshan
Qian Xinming
Guo Zaifu
author_facet Wu Qingshan
Qian Xinming
Guo Zaifu
author_sort Wu Qingshan
collection DOAJ
description By the Fluent software on the high-performance cluster system of parallel computing, the computational fluid dynamics method was applied to simulate the temporal and spatial evolvement of hydrogen sulfide's concentration during the blowout of a typical natural gas well with hydrogen sulfide in Sichuan and Chongqing. The difference and integral calculations were conducted to obtain the distribution of toxicity load for hydrogen sulfide. Then, the probability of lethality for receptors around the well was analyzed. The topographic condition of the gas well had a great impact on the calculation results. The topographic condition of the selected gas well was flat on the east, west, and north sides, dominantly low mounds, and there was a mountain of 1230 m altitude on the south side. Because of the influence of the mountain, the position of second peak value for toxicity load and lethality probability can reach 1000 m from the well under northerly wind. So it must be fully considered when performing the consequence simulation and quantitative risk assessment of gas wells. This method is preferable in the quantitative risk assessment and safety planning of sour gas wells. Key words: sour gas well, blowout, receptor lethal probability, quantitative risk assessment, topographic condition
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spelling doaj.art-e35f72f067ce40f390608899606a354f2022-12-21T22:21:00ZengKeAi Communications Co., Ltd.Petroleum Exploration and Development1876-38042009-10-01365641645Probability of receptor lethality in blowout of sour gas wellsWu Qingshan0Qian Xinming1Guo Zaifu2School of Aerial Space Science and Engineering, Beijing Institute of Technology, Beijing 100081, China; China National Petroleum Corporation, Beijing 100007, China; Corresponding author.School of Aerial Space Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaChina Academy of Safety Science and Technology, Beijing 100029, ChinaBy the Fluent software on the high-performance cluster system of parallel computing, the computational fluid dynamics method was applied to simulate the temporal and spatial evolvement of hydrogen sulfide's concentration during the blowout of a typical natural gas well with hydrogen sulfide in Sichuan and Chongqing. The difference and integral calculations were conducted to obtain the distribution of toxicity load for hydrogen sulfide. Then, the probability of lethality for receptors around the well was analyzed. The topographic condition of the gas well had a great impact on the calculation results. The topographic condition of the selected gas well was flat on the east, west, and north sides, dominantly low mounds, and there was a mountain of 1230 m altitude on the south side. Because of the influence of the mountain, the position of second peak value for toxicity load and lethality probability can reach 1000 m from the well under northerly wind. So it must be fully considered when performing the consequence simulation and quantitative risk assessment of gas wells. This method is preferable in the quantitative risk assessment and safety planning of sour gas wells. Key words: sour gas well, blowout, receptor lethal probability, quantitative risk assessment, topographic conditionhttp://www.sciencedirect.com/science/article/pii/S1876380409601518
spellingShingle Wu Qingshan
Qian Xinming
Guo Zaifu
Probability of receptor lethality in blowout of sour gas wells
Petroleum Exploration and Development
title Probability of receptor lethality in blowout of sour gas wells
title_full Probability of receptor lethality in blowout of sour gas wells
title_fullStr Probability of receptor lethality in blowout of sour gas wells
title_full_unstemmed Probability of receptor lethality in blowout of sour gas wells
title_short Probability of receptor lethality in blowout of sour gas wells
title_sort probability of receptor lethality in blowout of sour gas wells
url http://www.sciencedirect.com/science/article/pii/S1876380409601518
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