A well fluid test device includes a cell body having a first end port disposed on an upper end of the cell body, a second end port disposed on a lower end of the cell body, a first lateral port disposed on a side of the cell body, and a second lateral port disposed on a side of the cell body, and a filter medium disposed in the cell body, wherein the first and second lateral ports are disposed above the filter medium. A method of evaluating a fluid includes injecting a fluid into a well fluid test device, the well fluid test device having a filter medium, heating the fluid in the well fluid test device, establishing a pressure differential across the filter medium, establishing a filter cake on the filter medium, and maintaining at least one of a temperature and a pressure in the well fluid test device.