Effect of gas composition on dispersion characteristics of blowout gas on offshore platform

Gas composition has a significant impact on the dispersion behavior and accumulation characteristics of blowout gas. However, few public studies has investigated the corresponding effect of gas composition. Therefore, this study firstly builds the FLACS-based numerical model about an offshore drilli...

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Main Authors: Dongdong Yang, Guoming Chen, Jihao Shi, Xinhong Li
Format: Article
Language:English
Published: Elsevier 2019-07-01
Series:International Journal of Naval Architecture and Ocean Engineering
Online Access:http://www.sciencedirect.com/science/article/pii/S2092678218302322
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author Dongdong Yang
Guoming Chen
Jihao Shi
Xinhong Li
author_facet Dongdong Yang
Guoming Chen
Jihao Shi
Xinhong Li
author_sort Dongdong Yang
collection DOAJ
description Gas composition has a significant impact on the dispersion behavior and accumulation characteristics of blowout gas. However, few public studies has investigated the corresponding effect of gas composition. Therefore, this study firstly builds the FLACS-based numerical model about an offshore drilling platform. Then several scenarios by varying the composition of blowout gas are simulated while the scenario with the composition of “Deepwater Horizon” accident is regarded as the benchmark. Furthermore, the effects of the gas composition on the flammable cloud volume, the influenced area of flammable cloud, the influenced area of hydrogen sulfide and the critical time of the hydrogen sulfide spreading to the living area are analyzed. The results demonstrate that gas composition is a driving factor for dispersion characteristics of blowout gas. All the results can give support to reduce the risk of the similar accidents incurred by real blowouts. Keywords: Blowout accident, Gas composition, Offshore platform, Hydrocarbon, Hydrogen sulfide
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spelling doaj.art-596a446a5554479f8f684e68af2dd6402022-12-22T00:05:53ZengElsevierInternational Journal of Naval Architecture and Ocean Engineering2092-67822019-07-01112914922Effect of gas composition on dispersion characteristics of blowout gas on offshore platformDongdong Yang0Guoming Chen1Jihao Shi2Xinhong Li3Centre for Offshore Engineering and Safety Technology, China University of Petroleum (East China), No. 66, Changjiang West Road, Qingdao, ChinaCentre for Offshore Engineering and Safety Technology, China University of Petroleum (East China), No. 66, Changjiang West Road, Qingdao, ChinaCorresponding author.; Centre for Offshore Engineering and Safety Technology, China University of Petroleum (East China), No. 66, Changjiang West Road, Qingdao, ChinaCentre for Offshore Engineering and Safety Technology, China University of Petroleum (East China), No. 66, Changjiang West Road, Qingdao, ChinaGas composition has a significant impact on the dispersion behavior and accumulation characteristics of blowout gas. However, few public studies has investigated the corresponding effect of gas composition. Therefore, this study firstly builds the FLACS-based numerical model about an offshore drilling platform. Then several scenarios by varying the composition of blowout gas are simulated while the scenario with the composition of “Deepwater Horizon” accident is regarded as the benchmark. Furthermore, the effects of the gas composition on the flammable cloud volume, the influenced area of flammable cloud, the influenced area of hydrogen sulfide and the critical time of the hydrogen sulfide spreading to the living area are analyzed. The results demonstrate that gas composition is a driving factor for dispersion characteristics of blowout gas. All the results can give support to reduce the risk of the similar accidents incurred by real blowouts. Keywords: Blowout accident, Gas composition, Offshore platform, Hydrocarbon, Hydrogen sulfidehttp://www.sciencedirect.com/science/article/pii/S2092678218302322
spellingShingle Dongdong Yang
Guoming Chen
Jihao Shi
Xinhong Li
Effect of gas composition on dispersion characteristics of blowout gas on offshore platform
International Journal of Naval Architecture and Ocean Engineering
title Effect of gas composition on dispersion characteristics of blowout gas on offshore platform
title_full Effect of gas composition on dispersion characteristics of blowout gas on offshore platform
title_fullStr Effect of gas composition on dispersion characteristics of blowout gas on offshore platform
title_full_unstemmed Effect of gas composition on dispersion characteristics of blowout gas on offshore platform
title_short Effect of gas composition on dispersion characteristics of blowout gas on offshore platform
title_sort effect of gas composition on dispersion characteristics of blowout gas on offshore platform
url http://www.sciencedirect.com/science/article/pii/S2092678218302322
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AT guomingchen effectofgascompositionondispersioncharacteristicsofblowoutgasonoffshoreplatform
AT jihaoshi effectofgascompositionondispersioncharacteristicsofblowoutgasonoffshoreplatform
AT xinhongli effectofgascompositionondispersioncharacteristicsofblowoutgasonoffshoreplatform