Influence of Fracture Roughness on Aperture Fracture Surface and in Fluid Flow on Coarse-Grained Marble, Experimental Results

摘要

Wetting fluid flow through rock discontinuitiesinfluence a great number of project among others: dam construction, undergroundprojects, CO2 storage in underground schemes, geological disposal ofradioactive wastes; Hydrocarbon storage caverns. Flow through fractures isconsidered to be laminar due to small aperture of the fracture walls and slowvelocity. The fluid model called “Cubic law” describes the flow assumingparallel infinite plates. However, natural discontinuities on rock haveroughness. In this experimental study an induced fracture on a sample ofmedium-grained marble was used, to determine the influence of roughness inwater flow. This study is a preliminary part of research funding program forflow of CO2 through rocks (AUTH-GEOMechanics and Environment of CO2 geologicalStorage, Project No. 456,400).