XWN series microstrainer adopts 1520 micron ventage filter process which terms as microstraining.Microfiltration is a kind of mechanism filtering method.
The basic principle is the VCA formed by the coarse aggregate is filled with the fine aggregate, the filling, the asphalt and the preconcerted void content.
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.
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.
The application results show that the kind of technique can be used in microtest for dynamic analysis on flow mechanism and core thin for static analysis on pore structure.