Fracture conductivity testing is a specialty at Stim-Lab. The long-term
conductivity of a proppant is determined between either standard lab core (Ohio
Sandstone and Bandera Shale) or customer submitted formation core samples in patented
multi-cell stacks. Tests are run with and without fluids present at a specified
temperature (up to 300°F), closure pressure (up to 16,000 psi), and time.