The effect of capillary pressure and water saturation on sand production has been researched through the core flow test in this paper.
通过室内岩心流动试验，研究了毛管力、含水饱和度对岩石出砂规律的影响。
Using MTS Ultrasonic Measurement System, we studied the influences of water of saturation and pore pressure on velocities of compressional (P) and shear (S) waves in exposure rock specimens.
我们用MTS的超声波测试系统研究了地表岩样饱和水及孔隙压力对纵横波速度的影响。
When formation pressure decreases to around 0.85 times of saturation pressure, water should be injected with the injection-production ratio of some 1.0 to replenish energy.
并合理补充地层能量，地层压力降至0.85倍饱和压力附近时开始注水，注采比保持在1.0左右。
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