Cross check in cross-borehole shows that root-mean-square error of predicted porosity of simple cokriging is less than 10% compared with that of linear re-gression method.

井间交互检验证明,简单协克里格法预测孔隙度的均方根线性回法10％以。

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.

测试压不是依赖于地层流体粘度和压缩性，而是为地层孔隙度、渗透率和射孔孔眼半径的函数。