The method is presented to determine formation average pressure and boundary pressure with threshold pressure gradient and injection-production ratio.
给出了考虑注采比和启动压力梯度的平均地层压力和边界压力的确定方法。
2
The results showed that the image analysis method can obtain the average value and distribution curve of ratio of length to diameter for vilnite powder with needle shape.
研究表明图像分析方法可以直接给出硅灰石针状粉末的平均长径比及不同长径比的分布情况。
3
The instantaneous Young's modulus and Poisson (ratio) of the cement paste are calculated by the direct averagemethod and two-scale expansion method.