Specifying the Effective Pore Diameter

Method 1 The first and easiest way to approximate the pore diameter is to measure the bubble point using a standard reference fluid with known surface tension and use similitude to determine Dpi 

FIGURE 3.6 Scanning Electron Microscopy Image of a 325 x 2300 Screen. Triangles are drawn to represent a simplified geometry of the complex screen pore. 

FIGURE 3.7 Geometry of a Triangular Pore from Scanning Electron Microscopy Image. 

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Effective reseal diameters can be estimated using the three methods outlined in Section 3.2.5 for specifying the effective pore diameters. Reseal diameters can be determined through room temperature reseal pressure experiments with a liquid of known surface tension using a modification of Equation (3.70) (Method 1) ... 

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