Abstract
Geological sequestration of CO2 in saline aquifers is one of the solutions pursued for reducing greenhouse gas emissions. Understanding the interaction between the resident brine phase and the invading CO2 phase is crucial in predicting the safety and security of the storage process. In this work particle tracking velocimetry (PTV) is used to study CO2–water multiphase flow in a micromodel at reservoir-relevant conditions. In this work, using an open source PTV code (OpenPTV), the position, velocity, and acceleration of tracer particles dispersed in water was extracted. Demonstrated within the figures of this work, are plots of particle trajectories, velocities, and multiphase flow migration through the micromodel. Different flow stages are identified during the displacement process. This thesis serves as a starting point for those unfamiliar with using OpenPTV. Additionally, supporting code is provided that addresses trajectory linking and repair of the OpenPTV data.