Pipe friction is the resistance to flow caused by the pipe. As a general principle, it is better to use the largest practical pipe size to avoid losses in pump performance.
管道摩擦力是指由管道引起的流动阻力，作为一个常用原则，最好是使用最大的实用的管道尺寸以避免在水泵性能方面的损失。
The reservoir buried deep, and the pipe friction is large, whereas the treating pressure is limited, which induce the displacement couldn't be increased to the required value.
而储层较深，管路摩阻大，可能会受施工压力的限制而无法提高排量导致压裂施工失败。
Newton fluid's flowing in special pipe is analysed, it is gained that some factors affect the friction coefficient of flowing fluid in special pipe.
主要通过对流体流过非圆形直管的流动分析，得到影响非圆形直管摩擦系数的因素。
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