摘要
事故工况下,火炬放空系统保证了可燃气体的安全放空燃烧。在正常工况下,为满足油田生产工艺流程稳定运行要求,火炬放空气不可避免地产生,造成了资源的浪费和环境的破坏。受海上油气田空间狭小等因素影响,已有的陆地放空气回收技术不能满足应用要求。现有的放空气回收技术,主要围绕工艺处理产生的低压气展开,包括在气田应用的低压闪蒸气回收技术和油田使用的压缩机、增压射流装置低压气回收技术,这些技术有效地回收了低压气,但低压气不是火炬放空气的全部来源。随着环保要求的不断提高和低碳可持续发展思想的深入,放空气整体回收这一课题受到研究人员的重视,相关技术也在海上平台取得了应用。放空气整体回收技术起步较晚,根据海上油气田特点和放空气回收存在的难点,对该项技术的发展方向进行了探讨。
Under accident conditions,the flare venting system ensures safe venting of combustible gases.Under normal working conditions,to meet the stable operation requirements in the oilfield production process,the natural gas will inevitably generate in the flare venting system,resulting in the waste of resources and environmental damage.Due to the limitations of small space in the offshore oil and gas fields,the existing land-based vented gas recovery technology can not meet the practical requirements.The existing gas recovery technology mainly focuses on the low-pressure gas generated by the process treatment,including the lowpressure flash steam recovery technology applied in the gas field,and the low-pressure gas recovery technology of the pressurized jet device and the compressor used in the oil field.These technologies effectively recycle low pressure gas,which is not the entire source of flare vented gas.With the continuous improvement of environmental protection requirements and the deepening of lowcarbon sustainable development ideas,the high-efficiency recycling of vented gas has been attracting the attention of researchers,and related technologies have also been applied on offshore platforms.Considering that the overall vented gas recovery technology started late,according to the characteristics of offshore oil and gas fields and the difficulties in vented gas recovery,the future development direction was discussed in this study.
作者
肖宇
汪本武
代齐加
XIAO Yu;WANG Benwu;DAI Qijia(Tianjin Branch of CNOOC Ltd.,Tianjin 300459,China)
出处
《海洋石油》
CAS
2021年第1期97-100,共4页
Offshore Oil
关键词
海上油气田
火炬放空
低压气
节能减排
整体回收
offshore oil and gas fields
torch venting
low pressure gas
energy saving and emission reduction
overall recovery
