drawdown

The difference between buildup and drawdown curves is studied.

关井前的稳定生产时间是导致压力恢复理论曲线与压力降落理论曲线存在差异的主要因素。

Effects of compounds with metal element and pressure on the combustion characteristics of mixed industrial sludge;

含金属元素化合物和压力对工业污泥燃烧特性的影响

Determination of Pressure and Temperature in Oil Field Gas Condensation Separation Method;

油田气冷凝分离法中压力和温度的确定

Analysis of pressure dynamic curve on fractured horizontal well;

压裂水平井压力动态曲线分析

And the melt flux was in di- rect proportion with press fall.

PET熔体流动类型经分析判断为牛顿流动,熔体流量与压力降成正比关系。

According to the weight of the head(of the frame) and by calculating as well,gear pumps are chosen whose discharge is 45 litres per minute and whose pressure is 8 MPa,and also four jacks are needed,eac.

移挪重达18 t的架头,拟采用全液压系统的千斤顶,根据架头的重量,通过计算,选择了流量为45 L/min,压力为8 MPa的齿轮泵,4根单根最大推力为100 kN的千斤顶,由7。

The effective factors include the type,granularity and rigidity of abrasive,process press as well as process time.

本文借助正交设计方法研究了磨料水射流用于光整加工时的工艺参数 ,包括磨料的粒度、种类、硬度以及工作压力、加工时间等对表面粗糙度和表面去除量的影响 。