ABSTRACT
One of the common criticisms of contact angle measurements in reservoir engineering is that they use smooth crystal surfaces in place of reservoir rocks, which are not only rough but also are mineralogically heterogeneous. The main purpose of studying the effects of surface roughness on contact angles has been to investigate the possibility of relating contact angles measured on smooth surfaces to those likely to be operative on rough surfaces within porous media. Although the importance of surface roughness to wetting behavior is recognized, difficulties have been reported in obtaining a definitive account of roughness effects. This study is an attempt to address these concerns.
