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Effect of subsea dispersant application on deepwater oil spill in the South China Sea

Journal of Oceanology and Limnology 2022年第3期40卷 950-968页

作者： Haibo CHEN CAS Key Laboratory of Ocean Circulation and Waves Institute of OceanologyChinese Academy of SciencesQingdao 266071China Pilot National Laboratory for Marine Science and Technology(Qingdao) Qingdao 266237China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China

There are considerable amounts of off shore oil/gas fields in the South China Sea(SCS),and for potential oil spill events in this area,dispersants may provide a reliable large-scale response when the preferable option of recapturing the oil cannot be *** this paper,effect of chemical dispersants on underwater oil transport is investigated with an underwater oil spill *** the model is an adaption of an existing one,we first calibrate it by comparing the model result with echo-sounder data that were observed during the“Deepspill”experiment with crude oil/LNG(liquefied natural gas)***,with the hydrodynamic data provided by an operational forecasting system and the drilling data obtained from off shore platforms in the SCS,we apply the model to a hypothetical spill case,and examine the difference in oil distribution in water column caused by subsea dispersant *** model results can provide valuable reference for contingency plan makers to make an efficient emergency response to potential underwater oil spill accidents in the SCS.

关键词： underwater oil spill numerical simulation chemical dispersants South China Sea contingency planning

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Modeling underwater transport of oil spilled from deepwater area in the South China Sea

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Chinese Journal of Oceanology and Limnology 2016年第1期34卷 245-263页

作者：陈海波安伟尤云祥雷方辉赵宇鹏李建伟 State Key Laboratory of Ocean Engineering Shanghai Jiaotong University Shanghai 200240 China China Offshore Environmental Service Co. Ltd. Tianjin 300452 China China National Offshore oil Corporation General Research Institute Beijing 100027 China

Based on a Lagrangian integral technique and Lagrangian particle-tracking technique,a numerical model was developed to simulate the underwater transport of oil from a deepwater spill. This model comprises two submodels: a plume dynamics model and an advection-diffusion model. The former is used to simulate the stages dominated by the initial jet momentum and plume buoyancy of the spilled oil,while the latter is used to simulate the stage dominated by the ambient current and turbulence. The model validity was verified through comparisons of the model predictions with experimental data from several laboratory flume experiments and a field experiment. To demonstrate the capability of the model further,it was applied to the simulation of a hypothetical oil spill occurring at the seabed of a deepwater oil/gas field in the South China Sea. The results of the simulation would be useful for contingency planning with regard to the emergency response to an underwater oil spill.

关键词： underwater oil spill numerical simulation contingency planning deepwater oil/gas field South China Sea

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