The high-pressure, high-temperature Interfacial Tension (IFT) and Contact Angle (CA) measurement apparatus was designed entirely by scientists and engineers working at Piri Technologies. The system includes several advanced modules in order to accurately and reliably measure IFT, as well as dynamic and static contact angle. This apparatus is compatible with partially miscible fluids (by a phase pre-equilibration module), corrosive fluids such as sour gases, since the entire setup is made fromHastelloy C276, surfactant systems with very low IFT values (as low as 0.001 mN/m), and reservoir rock systems. The results from this setup provide a better understanding of fluid-fluid and rock-fluid interfacial interactions at reservoir conditions.Piri Technologies has access to nine of these systems allowing for multiple fluid combinations to be characterized simultaneously for a variety of customer applications.