The result shows that cyclic water injection may be more effective if increasing oil-water percolation rate, standup pressure time and water holdup coefficient.
周期注水技术主要是通过油水交渗效应、毛管压力作用，增加注水波及体积，从而提高水驱采收率的技术。
The relationships between conductivity and water holdup of oil and water bubbles are analyzed respectively under the conditions of ball and ellipsoidal shapes when the mixed fluid is in froth flow.
为此推导了油、气泡分别呈圆球状和椭球状泡状流动时油、气电导率与持水率的关系式，发现混合流体电导率值相差很小。
In two-phase oil and gas flow, the calculation of pressure drop and liquid holdup plays an important rule in technological calculation.
在油气两相管流中，压降和持液率的计算在工艺计算中占有重要的地位。
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