X气田天然气处理厂注油融蜡工艺优化

Optimization of Oil Injection and Wax Melting Process in X Gas Field Natural Gas Treatment Plant

摘要: X气田天然气处理厂采用低温冷冻工艺处理天然气，含蜡组分的天然气在低温条件下极易析出蜡结晶，蜡结晶附着在低温分离器及J-T阀处造成堵塞，从而大大降低处理厂处理效率，增加处理成本。本文基于X气田天然气处理厂实际运行参数，用仿真模拟软件还原现场工艺流程，从凝析油油品、凝析油注入量、凝析油循环利用等方面开展融蜡效果研究，研究结果可为X气田天然气处理厂注油融蜡工艺参数优化提供决策参考。

Abstract: Low temperature freezing process is used to treat natural gas in the natural gas treatment plant of X gas field. The natural gas containing wax components is easy to precipitate wax crystallization under low temperature conditions, and the wax crystallization adheres to the low temperature sep-arator and J-T valve to cause blockage, which greatly reduces the treatment efficiency of the treat-ment plant and increases the treatment cost. Based on the actual operating parameters of the nat-ural gas treatment plant in X gas field, this paper uses simulation software to restore the on-site process flow, and studies the wax melting effect from the aspects of condensate oil, condensate oil injection and condensate oil recycling. The research results can provide decision-making reference for the optimization of oil injection and wax melting process parameters in the natural gas treat-ment plant of X gas field.