焚烧炉在普光气田高含硫气井试气中的应用

目前高含硫气井试气通常采用燃烧筒燃烧，燃烧效率低、H₂S燃烧不完全、SO₂排放超标、试气时间短，难以准确评价气井产能。为此，介绍了引进加拿大专业公司设计生产的Q3000型焚烧炉的工作原理、扩散模型计算方法及主要技术指标，指出该焚烧炉通过喷头排列方式设计、逻辑控制程序研究能使高含硫天然气产生高速涡流，炉腔温度范围从1 090 ℃ 到1 630 ℃，保证了高含硫天然气的完全燃烧，具备燃烧完全、SO₂扩散良好，可长时间、高效率、满负荷燃烧的性能，满足了试气安全要求。同时，根据高含硫气井的试气要求，设计6台焚烧炉并联试气，设计处理量60×10⁴ m³/d，累积试气燃烧时间240 h，经环境监测可知各项监测指标满足环保要求，实现了高含硫天然气井的系统测试，为进一步落实气藏的产能提供了科学依据。

ChinaApplications of incinerators in well test of high sour gas wells at Puguang gas field

Presently, the combustion cylinder is commonly used for well test at high sour gas wells. However, it often results in low combustion efficiency, incomplete H2S combustion, excessive SO2 emission and short gas well test time, so it's difficult to accurately evaluate gas production capacity. This paper hereby introduces the Q3000 incinerator which is designed and manufactured by a specialized corporation in Canada. The working principles, calculation methods of diffusion model and main technical indexes are introduced. The arranged nozzle design and logical control procedures can create a high velocity vortex and high combustion temperature ranging from 1090℃ to 1630℃, which can ensure complete combustion of high sour gas, adequate diffusion of sulfur dioxide. Six incinerators are connected in parallel so as to meet the demand of well test at high sour gas wells. The design capacity is 60×104m3/d. The accumulation hours of gas combustion in well test are 240 hours. The incinerators represent favorable combustion performances with long period, high efficiency and full load. The environmental monitoring results indicate that monitoring indicators can meet the requirement. System test in high sour gas wells is realized successfully, which provides scientific underpinnings for gas reservoir development.