Mapping of In-Situ Velocity Field
Quoc P. Nguyen
A novel gas tracer method has been introduced for the first time to visualize the in-situ velocity distribution of a gas mixture.
This method has been successfully used in the determination of stationary gas in porous media during the injection of a gas or a dispersed gas-liquid system. It overcomes major limitations encountered in the conventional tracer method (i.e. based on the effluent analysis), such as uncertainties in the description of medium heterogeneity. This method has also found potential applications in: (1) understanding better dispersion phenomena in porous media, (2) characterization of heterogeneity, and (3) determination of directional permeability to gases.