低气液比凝析气井井筒压力计算方法研究

凝析气井在生产过程中,随着产气量、产油量、产水量的变化,井筒中不同位置处的压力也随之变化,当压力降低到露点压力以下时,会出现反凝析现象。在考虑井筒温度变化的基础上,综合利用Hagedorn-Brown方法,提出了低气液比凝析气井井筒压力预测方法;该方法主要拟合反凝析液量与压力的关系,求得不同压力下反凝析液量,将反凝析量对井筒压力的影响考虑在内,可准确预测不同生产时期低气液比凝析气井井筒中不同位置处的压力,能更好地指导低气液比凝析气井的生产。

The Study on The Calculation Method of Water Yield of The Condensate Gas Well With Pressure Gradient

In the process of Condensate gas well production, with gas production, oil production and water production changing, pressure changes in different positions of a wellbore. when the pressure is lower than the dew point pressure, it will be retrograde condensate phenomenon. Under the conditions of considering the wellbore temperature changing, and using Hagedorn - Brown method, the method is proposed to predict the condensate gas well pressure at low gas liquid ratio . itting the relationship between condensate volume and pressure, obtaining condensate amount under different pressure, and considering the effect of the amount of condensate in the wellbore, it can accurately predict the wellbore pressure in different production period and low ratio of liquid condensate at different positions,.It can be better to guide the low gas liquid ratio of condensate gas well to product