Filter Cake
The solid residue deposited on a permeable formation (e.g., a borehole wall) when a slurry such as drilling mud is forced against it under pressure. The liquid that passes through the formation leaving the cake behind is called filtrate.
The solid residue deposited on a permeable formation (e.g., a borehole wall) when a slurry such as drilling mud is forced against it under pressure. The liquid that passes through the formation leaving the cake behind is called filtrate.