Glass casts of rock fracture surfaces: A new tool for studying flow and transport

A method was developed for fabricating transparent glass casts of fractured rock pairs. These glass casts provide reproduction of surface topography and roughness of natural fractures, optical clarity, and representative wettabilities of mineral surfaces. The glass casts are an improved tool for studying flow and transport in fractures compared to previous approaches. The surface of a clean glass fracture has a contact angle near zero, and more importantly, the surface wettability can be intentionally altered with chemical treatment. Glass casts of rock fracture surfaces may be used for visually and quantitatively studying various physical, chemical, and microbial processes occurring in rock fractures, especially when multiple fluid phases are involved.

[1]  Stephen R. Brown,et al.  Experimental observation of fluid flow channels in a single fracture , 1998 .

[2]  P. Persoff,et al.  Two-phase flow visualization and relative permeability measurement in natural rough-walled rock fractures , 1996 .

[3]  Gudmundur S. Bodvarsson,et al.  Improved Glass Micromodel Methods for Studies of Flow and Transport in Fractured Porous Media , 1996 .

[4]  S. Finsterle,et al.  Experimental and Numerical Aqueous Flow Through a Partially Saturated Fracture , 1995 .

[5]  K. Pruess,et al.  On water infiltration in rough-walled fractures , 1995 .

[6]  Karsten Pruess,et al.  Two‐Phase Flow Visualization and Relative Permeability Measurement in Natural Rough‐Walled Rock Fractures , 1995 .

[7]  Stephen R. Brown.  Simple mathematical model of a rough fracture , 1995 .

[8]  S. Wheatcraft,et al.  Gravity-driven infiltration instability in initially dry nonhorizontal fractures , 1994 .

[9]  Y. Yortsos,et al.  Visualization and Simulation of Immiscible Displacement in Fractured Systems Using Micromodels: I. Drainage , 1994 .

[10]  P. Reimus,et al.  Aperture Characteristics, Saturated Fluid-Flow, and Tracer-Transport Calculations for a Natural Fracture , 1993 .

[11]  R. Glass,et al.  Wetting phase permeability in a partially saturated horizontal fracture , 1993 .

[12]  R. Lenormand,et al.  Two‐phase flow in smooth and rough fractures: Measurement and correlation by porous‐medium and pipe flow models , 1993 .

[13]  Terry E. Tullis,et al.  Euclidean and fractal models for the description of rock surface roughness , 1991 .

[14]  N. Barton,et al.  Aperture measurements and flow experiments using transparent replicas of rock joints , 1991 .

[15]  S. Gentier,et al.  Laboratory testing of the voids of a fracture , 1989 .

[16]  W. Power,et al.  The relationship between slickenside surfaces in fine-grained quartz and the seismic cycle , 1989 .

[17]  J. C. Calhoun,et al.  Capillary Desaturation in Unconsolidated Beads , 1953 .