Sharif Digital Repository

Colloidal gas aphrons (CGAs) are progressive operational fluids used in different areas such as engineering fields due to their unique characteristics. In between, the application of nanoparticle in several fields of engineering has received considerable attention in recent years. However, little or no information is available regarding the application of nanoparticle in CGA suspensions. In this study, the size distribution of bubbles, stability, API filtrate and rheology of a new type of these fluids called nanoparticle-enhanced colloidal gas aphron (NCGA)-based fluids are investigated. NCGAs’ stability is studied by measuring drainage rate tests. Also, for the investigation of fluid flow...