井口降压开采技术在惠州凝析气田的应用

Application of wellhead depressurization production technology in Huizhou condensate gas field

对于凝析气田而言,随着地层压力降低,地层及井筒凝析油的析出增加了稳产难度。针对以上问题,结合海上平台实际条件,本文提出采用压缩机进行井口降压开采及射流泵深度降压技术,不仅减小外输压力的限制,而且可降低井筒积液对产量的影响。该项技术的成功应用,对于海上类似凝析气藏开发后期低产低效井治理及提高采收率有一定的指导意义。

In view of the complexity of condensate gas reservoir development,the precipitation of formation and wellbore condensate increases the difficulty of stable production.Considering the actual conditions of offshore platform,this paper proposes the technology of wellhead depressurization production with compressor and deep depressurization with jet pump.It can not only reduce the limitation of export pressure,but also reduce the influence of wellbore effusion.The successful application of this technology has certain guiding significance for the treatment of low production and low efficiency wells and enhanced oil recovery in the later stage of offshore similar condensate gas reservoir development.