original effective permeability 原始有效渗透率
Rock masses treated with it retain their original permeability and water-absorption completely and have their compressive strength greatly increased.
经它处理过的岩块完全保持了原有渗透性和吸水率， 抗压强度大大增加。
It is easy to obtain parameters of permeability and original pressure of deep brine aquifer by using the pressure recovery curve of a production well after it is shut up.
利用卤水生产井关井后的压力恢复曲线，可以很容易求得深层含卤层的渗流参数和原始地层压力。
The original elastic energy in low permeability reservoir is generally small, so all the oil fields early or late adopt water flooding to keep the pressure of the low permeability reservoir.
我国低渗透油藏的天然弹性能量普遍较小，所以基本上都先后采取了注水保持压力的开发方式。
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