単一亀裂中の気液2相流相対浸透率の計測

概要

論文の詳細を見る
In this paper, the authors present the results of experimental studies of air-water two-phase flow and discuss the characteristic shape of relative permeability for a single fracture.In the experiments, the authors prepared three transparent epoxy replicas of natural rock fractures and both water and air were injected into them to generate two-phase flow conditions. Pressures at the inlet and outlet, flow rates of both phases were measured, and the saturation was obtained by image processing of the digital photo.A set of relative permeability curves for air-water system in a single fracture was proposed. The curves show that the water phase becomes immovable at relatively high water saturation while the relative permeability of air phase becomes rapidly high with a decrease in water saturation.The proposed set of relative permeability curves might be useful for the quantitative interpretation of a two-phase flow through a fractured medium.
社団法人資源・素材学会の論文
2003-09-25