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。
The water holdup is a key parameter of the oil-water two-phase flow for production, dehydration and transportation.
油水两相流在石油工业中广泛存在，其分相含率是一个重要检测参数。
From the test, it is shown that effect of surge on water-holdup can be weakened by increasing the flow velocity of oil and water, which assures the accuracy of water-holdup measurement.
从实验上证明提高油水的流速，可以减少滑脱现象对持水率的影响，保证了含水率的准确测量。
In oil Wells, water-holdup measured by tool is higher than water-cut due to the surge of oil and water.
在油井中，因油水滑脱的存在，使得持水率大于含水率。
Using a vertical downward section in which flow is very slowly, water holdup in oil-water two phase flow is measured, and a good result is obtained.
通过采用一缓流的垂直下降段，测量油水两相流中的含水率值，获得了好的结果。
Using a vertical downward section in which flow is very slowly, water holdup in oil-water two phase flow is measured, and a good result is obtained.
通过采用一缓流的垂直下降段，测量油水两相流中的含水率值，获得了好的结果。
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