Simulation on the dispersion of natural gas and its volume cloud distribution on an offshore fixed platform

• Autorzy: Cao, Yang , Wang, Honghong , Wang, Haodong , Gao, Yang , Sun, Siheng
• Języki publikacji: EN

Abstrakty

EN

The formation, migration and volume distribution of gas clouds, which are dominated by natural gas after oil and gas leakage, are the material basis of fire and explosion accidents on offshore platforms. Based on an offshore platform as the background, this paper conducts research on the gas cloud using numerical simulation method, the selection of different wind speeds, leak leakage rate of quality, wind direction and the direction angle, the leakage of gas diffusion behaviour simulation studies and its size distribution. There is a “coupling” effect on the volume value of 5% CH4 cloud between different wind speeds, leakage mass rates, and wind direction and leakage direction. When the wind speed is 13 m/s, the leakage mass velocity is 8 kg/s, and the included angle between wind direction and leakage direction is 180°, the “coupling” effect on the volume value of 5% CH4 cloud increases significantly. The above research results can provide a reference for the reasonable division of process risk area, firewall design and quantitative risk assessment of fire and explosion of an offshore platform.

Słowa kluczowe

PL

platforma wiertnicza; wybuch gazu; wyciek gazu

EN

offshore platform safety; gas explosion prevention; gas leakage dispersion; gas cloud distribution; gas leakage simulation

• Czasopismo: Archives of Mining Sciences
• Rocznik: 2024
• Tom: Vol. 69, no. 2
• Strony: 191--209
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wykr.

Twórcy

autor

Cao, Yang

• CNOOC Research Institute Co., Ltd, Department of Engineering Research and Design, Beijing, 100028, China

autor

Wang, Honghong

• CNOOC Research Institute Co., Ltd, Department of Engineering Research and Design, Beijing, 100028, China

autor

Wang, Haodong

• China University of Petroleum (Beijing), College of Safety and Ocean Engineering, Beijing 102249, China
• Key Laboratory of Oil and Gas Safety and Emergency Technology, Ministry of Emergency Management, Beijing 102249, China

autor

Gao, Yang

• CNOOC (China) Co., Ltd., Beijing, 100010, China

autor

Sun, Siheng

• University of Science and Technology, School of Civil and Resource Engineering, Beijing, 100083, China

Bibliografia

• [1] Z.L. Qin, S.G. Wu, Z.J. Wang, Geohazards and risk of deepwater engineering induced by gas hydrate – A casestudy from oil leakage of deepwater drilling well in GOM. Progress in Geophys. 26 (4), 1279-1287 (2011).
• [2] L. Yang, J.Y. Zou, L.Y. Kou, Simulation study of leakage diffusion of LNG tank. Automation in Petro-chemicalIndustry 57 (1), 48-50-62 (2021).
• [3] Y.D. Cao, Z. Lv, C.M. Feng, Numerical simulation and analysis of leakage and diffusion of liquefied natural gastank truck. Modern Tunnelling Technology 55 (S2), 989-995 (2018).
• [4] Z.D. Yu, Analysis of accident consequence simulation on LPG spherical tank leakage. Oil & Gas Storage andTransportation 36 (2), 144-148 (2017).
• [5] S.H. Li, J.D. Liu, Z. Wang, Study of the storage tank leakage and diffusion simulation for liquefied natural gas.Modern Chemical Research (02), 116-117 (2017).
• [6] Z.J. Yang, L. Hou, M. Zhu, Research on leakage and diffusion of a large LNG storage tank and its influencingfactors. Natural Gas and Oil 38 (1), 47-53 (2020).
• [7] X.X. Li, G.M. Chen, H.X. Meng, Diffusion characteristics of blowout combustible gas in semi-submersible drillingplatform in South China Sea. China Offshore Oil and Gas 27 (1), 111-115+120 (2015).
• [8] K. Liu, G.M. Chen, C.N. Wei, Combustible gas diffusion law and hazardous area of FPSO. Acta Petrolei Sinica36 (8), 1018-1028 (2015).
• [9] Z.Q. Wan, J.J. Li, W.T. Wang, Risk analysis of gas leakage from FPSO topside module. China Offshore Platform36 (4), 9-14 (2021).
• [10] X.K. Meng, G.M. Chen, Y. Zhu, Model experiment and numerical simulation on gas dispersion from blowoutin the 7th generation ultra-deepwater semi-submersible platform of China. China Offshore Oil and Gas 31 (3), 159-167 (2019).
• [11] W.W. Zhan, H. Niu, F. Wei, et al., PHAST⁃based simulation of hazard range of consequences of natural gas pipelineleakage. Weld Pipe and Tube 46 (12), 20-27 (2023).
• [12] Sh.Q. Liu, FPSO gas leakage and fire and explosion risk assessment research. 2020.
• [13] Zh.Y. Geng, Study on Risk Assessment of Gas Pipeline Leakage in Beach Area 2021.

Identyfikatory

DOI

10.24425/ams.2024.150341