喷射器在海上油气田轻烃回收中的应用

Study of Ejector Used in Offshore Oil & Gas Light Hydrocarbon Recovery

分析了海上油气田低压伴生气和挥发气的危害,对喷射器的轻烃回收技术原理进行了阐述,指出其技术优势,并对喷射器的压力和流量等工艺参数和工艺设计进行了探讨。通过某浮式生产储油装置利用喷射器对原油舱挥发气进行回收的工程实例表明,喷射器在油气田轻烃回收工程中切实可行且具有多方面的优势,具有实际推广价值,在节能减排方面具有重要意义。

As the low pressure associated gas and evolved gas was vented from the offshore oil and gas field,the environment was polluted,energy was wasted and the offshore production unit was affected by the flammable atmosphere.The conception of ejectors used to recover this sort of gas was described,the technique advantages were analyzed and the process parameter e.g.pressure and flow rate and process design was discussed.The project example of one FPSO which adopted ejector recovery of evolved gas from crude oil vessel tanks was also presented.It showed that this technology was a simple and effective way of disposing of VOC without large and expensive VOC recovery units.It can be used in practice and has significant meaning in energy saving and emission reduction.