Porosity of filter cake
Fluid Reference Weight of dry ceramic disk g Weight of wet  ceramic disk g Wet weight of CD & MC g Net wet wt. of MC g Dry weight of CD & MC g Net dry wt. of MC g Average grain density ρg g/cc Porosity фc
Sample 1 40.369 47.133 63.300 16.167 45.614 5.245 2.09 0.866
Sample 2 39.537 46.387 59.290 12.903 43.281 3.744 2.50 0.859
Sample 3 38.516 45.156 57.190 12.034 41.999 3.483 2.37 0.853
Sample 4 39.01 45.822 57.570 11.748 42.594 3.584 2.12 0.828
Sample 5 39.876 46.508 56.634 10.126 43.027 3.151 2.14 0.826
Sample 6 39.306 46.050 55.945 9.895 42.362 3.056 2.01 0.818
Sample 7 40.694 47.215 56.452 9.237 43.456 2.762 1.85 0.813
Table 4: Porosity of Filter Cake фc (different concentration of XC-Polymer).