Foam Stability in Presence of Oil: A Simulation and Experimental Study

This thesis investigates bulk foam stability in absence of oil, and in presence of oil (hexadecane). Foam in absence of oil was produced by sparging nitrogen at a fixed flow rate through the surfactant solution. Foam in presence of oil was produced by stirring a mixture of surfactant and oil with an immersion mixer. The behavior of foam in...

Simulation Studies of Foam for Enhanced Oil Recovery

In gas-injection enhanced oil recovery (EOR), foam is a promising method to improve sweep. We studied foam for EOR through analytical modeling and simulations in two cases: the ability of foam to prevent gravity override over large distances and the effect of oil on foam processes. Shan and Rossen (2004) present a simple model for SAG ...

Injectivity errors in foam EOR

Simulators play a crucial role in EOR reservoir modeling. One of the big problems with the simulation of gas injection in SAG foam processes, is that foam collapse near the injection well is poorly represented in the simulator well model. This paper focusses on the question whether a simulator using the Peaceman equation for a homogeneous...

Model for gas sweep with foam

In this BSc-thesis a Surfactant-Alternating-Gas (SAG) foam displacement is represented by an idealized model. Shan and Rossen show in the article ‘Optimal Injection Strategies for Foam IOR’ (2004) that this model, though greatly simplified, is a useful representation of a foam displacement in the physical world, where pressure gradient is the...