含硫气井络合铁单井脱硫工艺优化

Optimization of single well desulfuration process with complex iron in sour gas well

关键词:  彭州海相  络合铁脱硫  硫沉积  工艺优化

Key words:  Pengzhou marine facies  complex iron desulfurization  sulfur deposition  process optimization

摘要:

YS1井原料气中H₂S摩尔分数为5.23%,为高含硫气井,采用络合铁单井脱硫工艺进行开采。络合铁脱硫工艺具有硫容高、投资成本低、节约占地等优势,为含硫油气田的单井试采提供了一种新的经济、高效的脱硫处理技术,社会经济效益显著。但络合铁脱硫工艺普遍存在硫磺堵塞、尾气异味、硫膏收集困难等问题。通过总结YS1井的生产经验,提出了硫沉积监测及控制技术、有机硫除臭系统、硫膏收集系统及热能利用技术的优化,提高了装置连续运行的稳定性及经济性,对络合铁单井脱硫工艺的推广具有指导意义。

Abstract:

The H₂S molar fraction in feed gas of YS1 well is 5.23%, which is a high sulfur content gas well. YS1 well is exploited by single well desulfurization technology of complex iron. The complex iron desulfurization process provides a new economic and efficient desulfurization treatment technology for single well test production of sour oil and gas fields with the advantages of high sulfur capacity, low cost and less site area. However, the complex iron desulfurization process is faced with problems such as sulfur blockage, tail gas odor, and sulfur paste collection difficulties. Based on the production experience of YS1 well, sulfur deposition monitoring and control technology, organic sulfur deodorization system, sulfur paste collection system and thermal energy utilization technology optimization were proposed. The stability and economy of the device continuous operation were improved, which had a guiding significance for the popularization of the single well desulfurization process of complex iron.