【摘要】 为了直观地反映出油藏流体在五点法水平井井网间的运动轨迹,利用压降叠加原理获得水平井井网地层压力公式,给出流线生成方法,研究了水平井井网流线分布规律,并分析了流线分布的特征。结果表明:水平渗透率、水平井长度及生产时间对平井井网流线分布影响很大。在不同的水平渗透率下存在不同的合理井距,使水平井的产能达到最大;水平井长度越长,生产井的泄油面积越大,从而提高水平井的产能;生产时间越长,注入井的波及范围越大,油藏的采出程度越高。利用该方法产生的流线分布图能够为剩余油分析、优化水平井网和注入方案提供重要依据。更多还原

【Abstract】 In order to visually reflect the flowing tracks of reservoir fluid in five-spot horizontal well pattern,according to the potential superposition principle the pressure distribution equation of horizontal well pattern is obtained and the calculation method of seepage field streamline is presented.The streamline distribution diagram with horizontal well pattern is plotted and the regular of the streamline distribution is studyed.It is shown that the streamline distribution of horizontal well pattern is sensitive to the horizontal permeability,horizontal well length and production time.There is a reasonable well spacing under a given horizontal permeability,which can maximize the productivity of horizontal well.The well drainage area of production well is increased with the increasing of horizontal well length,which can improve the productivity of horizontal well.The longer the production time is the higher the sweep regionin of jection well is and the higher the recovery percent of reserves is.The streamline distribution plots can provide an important basis for analysis of remain oil,optimization of well pattern and injection strategy.更多还原