压力-时间关系曲线图 pressure-time plot
对于定压边界,当时间趋向于无穷大时,气井产量与井底压力关系曲线即是我们常用的IPR曲线(不妨称为常规IPR曲线或稳定IPR曲线)。
Under the conditions of constant pressure boundary, when the time approaches to infinity, the curve between the flow rate and the bottom hole pressure is so called conventional IPR curve.
研究了试样总应力、循环孔隙水压力、有效应力随时间的变化规律及试样有效应力与轴向应变的关系曲线。
Curves of total stress and time, of cycle pore water pressure and time, of effective stress and time, of effective stress and axial strain are respectively studied.
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