The experimental result shows that the corrosion rate of carbon steel increases with the increasing of flow velocity, and there is a critical flow velocity.
结果表明:随着相对流速的增大,碳钢的腐蚀随之加剧,并发现存在一个临界相对流速值。
While below the dew point pressure, the gas-liquid mixed adsorption model is adopted if the retrograde condensate oil saturation higher than the critical flow saturation of condensate oil;
当压力低于露点压力时,若反凝析油饱和度小于凝析油的临界流动饱和度,采用气液混合吸附模型来进行计算;
Based on the basic critical flow equation, formulae, which used to determine section factor Z and hydraulic exponent M for critical flow in city gate and horseshoe conduits, were derived.
The problem such as the critical flow velocity at which fluid elastic instability phenomenon begin to occur, the reciprocal action on neighboring tubes in different helical radius, and that.
If the critical flow meter is used, the measure isn t affected by the variation.
采用临界流量计后,流量计下游压强的变化不会影响流量的测量。
The critical flow pressure is a characteristics parameter which does not change with reservoir pressure.
临界流压是地层的特征参数,不随地层压力发生变化。
The Fluid Flow factors contained herein are calculated values. They are therefore approximations and cannot be used for highly critical flow or pressure drop calculations.
这里的液流系数是预测值。因此这些数据只是大致的数据,不能用作高流量临界值或压降估计值。
The critical flow velocity of reservoir, sand production rate of oil well and sand control rate of sand retention layer are the key of the technology that is successfully used.
具体储层的临界流速,油井出砂率,挡砂层的挡砂率是该技术的成功核心。
The effect of some parameters of the system on the values of critical flow velocity is discussed according to the analytical expressions derived.