Numerical analysis of dispersion characteristics of underwater gas-oil two-phase leakage process

被引：2
作者：
Sun, Yuan [1 ]
Zhu, Xianqiang [1 ]
Cao, Xuewen [2 ]
Sun, Shitao [3 ]
Bian, Jiang [2 ]
机构：
[1] ChangZhou Univ, Jiangsu Key Lab Oil gas Storage & Transportat Tech, Changzhou 213164, Peoples R China
[2] China Univ Petr, Coll Pipeline & Civil Engn, Qingdao 266580, Peoples R China
[3] Yu Ji Pipeline Co Ltd PipeChina, Jinan 250001, Peoples R China
来源：
MARINE POLLUTION BULLETIN | 2023年 / 197卷
关键词：
Underwater leakage; Multiphase flow; Flow pattern; Dispersion; Plume; DEEP-WATER OIL; FLOW-THROUGH; MODEL; SLUG; WAVE; SIMULATIONS; SEPARATION; TRANSPORT; BLOWOUTS; FRACTION;
D O I：
10.1016/j.marpolbul.2023.115766
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Fatigue failure, third-party destruction and internal corrosion may easily trigger gas and oil leakage during the operation of submarine multiphase pipelines. In order to analyze the underwater gas-oil plume development and migration law, a 3D model based on coupled Eulerian-Lagrangian numerical approach is proposed. The model is validated by laboratory experiment and the dynamic dispersion process of gas-oil plume in a large scale shallow sea environmental is further explored. Influencing factors such as leak location, leak size and water depth, flow pattern are investigated. The simulated results show that leak location affects the gas-oil plume migration behaviors by influencing the leakage amount. Water depth significantly affects gas-oil migration and the separation of gas plume and oil plume is gradually apparent as water depth increases. This study fills in the gap of ignoring the influence of flow pattern previously and is expected to help build more accurate emergency response guidelines.
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页数：16
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