Scholarlink

A carbonate-rich gas-condensate reservoir in the Taklamakan Desert has reached the stable production phase after long-term development. To sustain production output, nitrogen gas lift and nitrogen huff-puff techniques were systematically deployed. In 2023, operational data from the oil-gas processing facility revealed that flash gas compressor valves required cleaning every 500 h—50% shorter than historical maintenance intervals. Analytical results revealed that oxygen infiltration triggered partial oxidation of hydrogen sulfide (H2S), which subsequently underwent disproportionation reactions to form elemental sulfur deposits (S0) on valve surfaces. Post-failure analysis identified three critical mitigation strategies: (1) enhancing nitrogen purity to suppress oxygen intrusion; (2) installing multi-stage coalescing filters and mechanical structural adjustments (3) redesigning valve geometries with a wide-groove low-lift configuration to minimize flow turbulence and sulfur adhesion.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Sulfur Deposition Mechanisms in Flash Gas Compressors Under Oxygen-Containing Conditions During Carbonate Reservoir Development

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Qiang Tang,
  • Yifan Li,
  • Tianzuo Song,
  • Fei Zhang,
  • Yafeng Wu,
  • Xiaohui Wang,
  • Jiansen Niu,
  • Qiangqiang Zhang

摘要

A carbonate-rich gas-condensate reservoir in the Taklamakan Desert has reached the stable production phase after long-term development. To sustain production output, nitrogen gas lift and nitrogen huff-puff techniques were systematically deployed. In 2023, operational data from the oil-gas processing facility revealed that flash gas compressor valves required cleaning every 500 h—50% shorter than historical maintenance intervals. Analytical results revealed that oxygen infiltration triggered partial oxidation of hydrogen sulfide (H2S), which subsequently underwent disproportionation reactions to form elemental sulfur deposits (S0) on valve surfaces. Post-failure analysis identified three critical mitigation strategies: (1) enhancing nitrogen purity to suppress oxygen intrusion; (2) installing multi-stage coalescing filters and mechanical structural adjustments (3) redesigning valve geometries with a wide-groove low-lift configuration to minimize flow turbulence and sulfur adhesion.