布越
布越-
但是并不是布液管流速越大越好，因为随着布液管流速的逐渐增加，降膜横管的换热、传质性能的增加率是逐渐减小。
Because the gains rate of heat and mass transfer of horizontal falling film pipe gradually decrease with the increases of entrance velocity .
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目前，水平井与直井联合布井方式越来越受到人们重视，并已用到油田的实际生产中。然而，水平井与直井整体开发渗流理论的研究还不成熟。
Nowadays , the way of integral development with horizontal well and vertical well has been paid attention and already used in the actual oilfield , however , the study of combination of horizontal and vertical well is not mature .