南海深水区含气的溢油模拟技术

摘要

针对南海存在深水区发生水下溢油事故会引发天然气泄漏的问题,基于Lagrange积分法和La-grange粒子追踪法建立含气的水下溢油数值模型,重点探讨油气溶解和水合物合成分解等过程,模拟天然气和溢油在水体中的迁移扩散轨迹,选择南海某油气田为研究对象,模拟油气泄漏后对海洋环境的影响,模拟数据可为溢油应急计划编制或现场应急处置提供技术支撑.%Oil and gas resources are rich in the south China sea,and underwater oil spill often faces the risk of gas leakage in deep water area.Based on Lagrange integral method and Lagrange particle tracking method,an underwater oil spill model with gas was established to analyze the process of decomposition and synthesis of gas hydrates, and dissolution of oil and gas.The model can simulate diffusion path of oil droplet and gas bubble.The certain oil and gas fields were chosen as the research object to simulate marine environment impact in order to provide technical support for oil spill emergency plan and emergency disposal.