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对塔里木油田套压升高的情况进行了系统调查和统计分析,认为完井管柱内流体温度变化导致套压升高量很小,且维持时间很短;一旦正常生产,完井管柱内流体温度变化导致套压升高的现象会自动消失。完井管柱接头不密封是导致套压升高的真正原因,完井管柱接头的密封性能与接头设计特性、上扣扭矩、对扣和引扣等操作方式有关。
Systematic investigation and statistical analysis of the casing pressure rise in the Tarim Oilfield show that the increase of fluid pressure in the completion string results in a small rise in casing pressure and a short maintenance time. Once normal production is completed, the completion string Fluid temperature changes lead to hedging phenomenon will disappear automatically. The imperfection of the completion pipe joint is the real reason for the increase of casing pressure. The sealing performance of the completion pipe joint is related to the design characteristics of the joint, the torsional moment, the buckling and the buckling.