油气藏评价与开发 ›› 2020, Vol. 10 ›› Issue (4): 125-129.doi: 10.13809/j.cnki.cn32-1825/te.2020.04.020

• 常规油气 • 上一篇    下一篇

元坝气田含硫污水负压汽提脱硫工艺影响因素分析与优化

刘鹏刚(),孙天礼,陈伟,侯肖智,黄元和,朱国,何海,房斌   

  1. 中国石化西南油气分公司采气二厂,四川 阆中,637400
  • 收稿日期:2019-11-12 出版日期:2020-08-26 发布日期:2020-08-07
  • 作者简介:刘鹏刚(1990 —),男,硕士,工程师,主要从事高含硫气田开发及污水处理研究。通讯地址:四川省阆中市七里开发区中石化阆中科研基地,邮政编码:637400。E-mail: lpg412@163.com

Analysis and optimization of influencing factors of negative pressure stripping desulfurization process for sour water in Yuanba gas field

LIU Penggang(),SUN Tianli,CHEN Wei,HOU Xiaozhi,HUANG Yuanhe,ZHU Guo,HE Hai,FANG Bin   

  1. No. 2 Gas Production Plant, Sinopec Southwest Oil and Gas Company, Langzhong, Sichuan 637400, China
  • Received:2019-11-12 Online:2020-08-26 Published:2020-08-07

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。

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

Abstract:

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 1 808 600 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.

Key words: high sulfur-containing gas field water, negative pressure stripping, stripping efficiency, influence factor analysis, parameter optimization, cost reduction and benefit enhancement

中图分类号: 

  • TE45