The minimum underbalance is independent of viscosity and compressibility and of reservoir fluids.It is a function of the formation porosity, permeability and radius of perforation channels.
最小测试压差不是依赖于地
流体粘度和压缩
，而是为地
度、渗透率和射眼
径的函数。
The minimum underbalance is independent of viscosity and compressibility and of reservoir fluids.It is a function of the formation porosity, permeability and radius of perforation channels.
最小测试压差不是依赖于地流体粘度和压缩，而是为地度、渗透率和射眼径的函数。
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