Improvement of stabilizing technique for condensate oil with high salt content in Dalaoba Gas Condensate Field
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摘要: 大涝坝凝析气田凝析油稳定工艺采用高温正压分馏稳定工艺,凝稳塔采用填料塔,重沸器采用虹吸式设计结构,设计凝析油稳定塔底运行温度195℃,进塔凝析油含盐量达到963mg/L,凝析油稳定塔及塔底重沸器管束“析盐”导致盐堵,同时导致重沸器管束腐蚀,严重影响生产稳定性。文章对凝析油稳定系统的处理工艺、运行参数和防腐进行了研究及优化,并取得了显著成效。Abstract: The fractionation technique using high temperature and positive pressure is adopted in stabili-zing condensate oil from the Dalaoba Uas Condensate Field.Packed column is chosen to condense andstabilize oil.The reboiler is of siphonage structure.The operating temperature at the bottom of the to-lumn is 195 0C.Salt content of condensate oil entering the column amounts to 963 mg/I.“Salt precipita-tion" may cause blocks and erosions in the column and the reboiler tubes,seriously affecting productStablllty.In thlS papeY,the processing technique,operating parameter and preservation of stabilizingsystem for condensate oil were studied and improved.Several fruits were gained.
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