摘要
针对目前元坝气田汽提塔脱硫效率低、正压汽提技术表现出局限性、存在极大优化空间的现象,开展了负压汽提脱硫新工艺现场试验,并对汽提效率影响因素进行深入分析研究。通过参数优化,得到最优进液pH值控制在4.0~5.0,推荐汽提塔塔压控制在-30^-25 kPa,最优气液比为8~12,汽提进液量为7~9 m^3/h,有利于提高汽提效率。现场应用表明,优化后负压汽提效率达到96.28%,比正压汽提提高19.68%,年节约成本约180.86万元,降本增效效果显著。负压汽提脱硫新工艺表现出明显的技术优势和良好的应用前景,也为同类海相高含硫气田的现场应用提供一定的参考。
In view of the low desulfurization efficiency of stripper,limitation of positive pressure stripping technology and great optimization space in Yuanba gas field,a new process of negative pressure stripper desulfurization is carried out,and the influencing factors of stripper efficiency are analyzed in depth.By parameter optimization,the optimal pH value is 4.0~5.0,the recommended stripper pressure is-30^-25 kPa,the optimal gas-liquid ratio is 8~12,and the liquid inlet volume is 7~9 m^3/h,which is conducive to improving the stripper efficiency.The field application shows that the efficiency of negative pressure stripping is 96.28%,19.68%higher than that of positive pressure stripping.The annual cost saving is about 1808600 yuan,which has significant effect on cost reduction and benefits enhancement.The new process of negative pressure stripping desulfurization shows obvious technical advantages and good application prospects,and also provides certain reference for the field application of similar marine high sulfur gas fields.
作者
刘鹏刚
孙天礼
陈伟
侯肖智
黄元和
朱国
何海
房斌
LIU Penggang;SUN Tianli;CHEN Wei;HOU Xiaozhi;HUANG Yuanhe;ZHU Guo;HE Hai;FANG Bin(No.2 Gas Production Plant,Sinopec Southwest Oil and Gas Company,Langzhong,Sichuan 637400,China)
出处
《油气藏评价与开发》
CSCD
2020年第4期125-129,共5页
Petroleum Reservoir Evaluation and Development
关键词
高含硫气田水
负压汽提
汽提效率
影响因素分析
参数优化
降本增效
high sulfur-containing gas field water
negative pressure stripping
stripping efficiency
influence factor analysis
parameter optimization
cost reduction and benefit enhancement
