摘要
根据多相渗流理论推导出适合于不同含水、流压和静压条件下的油井流入动态预测公式,并用埕北油田30套系统试井资料对该方法和其他方法进行了对比验证,该方法的预测精度可达到-0.1％;同时指出,P_(wf)=2/3 P_b是油井的临界流压;当P_(wf)<2/3 P_b时,油井产量随流压的降低而大幅度降低。临界流压是地层的特征参数,不随地层压力发生变化。
A set of equations for oil well inflow performance prediction applicable to different water cut, static and flow pressures is induced according to the theory of multiphase flow in porous medium, and verification and comparison are made with other methods by using 30 sets of well testing data from Chengbei oil field. The accuracy of this method can be -0.1%. It is also pointed out that the critical flow pressure is 2/3 of bubble pressure for oil well when the flow pressure is below the critical pressure. The oil production reduces dramatically along with reduction of flow pressure. The critical flow pressure is a characteristics parameter which does not change with reservoir pressure.
出处
《中国海上油气（工程）》
2001年第6期27-33,共7页
China Offshore Oil and Gas
关键词
流入动态
预测
临界流压
含水
流压
静压
特征参数
油井
inflow performance, prediction, critical flow pressure, water cut, flow pressure, static pressure, characteristic parameter comparison
