Function, characteristics of EOR foam behavior covered in laboratory investigations

Abstract

The past two decades have seen numerous studies dealing with the flow of foam in porous media, its formation mechanics, and its rheological properties. Foam is a gas-liquid dispersion that is formed by mixing a gas (e.g., air, nitrogen, carbon dioxide) and a liquid to which a suitable surface-active agent has been added. In addition to its other industrial uses, applications of foam in the oil field include drilling and completion operations, hydraulic stimulation, cementing, and enhanced oil recovery (EOR).