Therefore, the impact of starting pressure gradient must be considered when analyzing the productivity of vertical fracture well in low permeability reservoir.
因此，在进行低渗透油藏垂直裂缝井产能分析时，必须考虑启动压力梯度的影响。
2
The compacting density, bending strength, fracture toughness and rigidity value of the synthesis can be prepared to be applicable gradient material structure under suitable pressure and temperature.
在适当的压力、温度环境下合成致密度、弯曲强度、断裂韧性、硬度值可满足实际应用背景的梯度夹层。
3
Main fracture occurs in the high gradient area where the strain and gradient are relatively lower.