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针对海洋酸性气田开发过程中的井喷硫化氢扩散问题,以计算流体力学(CFD)为理论基础,建立一套数值模拟方案和毒害评价模型。选取静风、平均风速和季风风速3种典型环境风速条件,对左舷、右舷、船艏、船艉4个来风方向的硫化氢扩散过程进行模拟,分析了硫化氢扩散的时空分布以及风速对硫化氢扩散的影响作用。结果表明,静风条件下,硫化氢对平台空间危害最为严重;有风条件下,船艏和船艉来风,平台空间危害较为严重;其他方向来风时,硫化氢对平台空间区域危害较小。风速越大,硫化氢对平台空间的危害程度越小。最后,据此提出了相应的应对措施。
Aiming at the problem of blowout and hydrogen sulfide diffusion during the development of marine acid gas field, a set of numerical simulation scheme and poisoning evaluation model are established based on computational fluid dynamics (CFD) theory. Three typical wind speed conditions of static wind, average wind speed and monsoon wind speed were selected to simulate the diffusion process of hydrogen sulfide in four wind directions from the port side, the starboard side, the ship 艏 and the ship,. The spatial and temporal distribution of hydrogen sulfide diffusion and the wind speed Hydrogen sulfide diffusion effect. The results show that under the condition of static wind, hydrogen sulfide has the most serious hazard to the platform space. Under windy conditions, the wind and platform space risk of the stern and stern of the ship is more serious. In the other direction, small. The greater the wind speed, the less damage the hydrogen sulfide to the platform space. Finally, the corresponding countermeasures are put forward accordingly.