USE OF THE SIMILARITY THEORY IN TWO FLUID-PHASE DISPLACEMENT EXPERIMENTS

Experiment of two fluid phase displacements is very important for the study of formation mechanism of remaining oil. The photoetched pore micromodel has widely been used because of its good similarity and its convenient design. According to the similarity theory, the photoetched pore micromodel should have not only the similar pore structure with the target core, but also the other similar parameters such as permeability and percolation velocity. Two similarity rules were suggested in accordance with the above parameters. Following the rules, the photoetched pore micromodel will have more flexibility in design and will produce a more precise experiment result.