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3D Imaging of Porous Media Using Laser Scanning Confocal Microscopy with Application to Microscale Transport Processes; Physics and Chemistry of the Earth

机译：使用激光扫描共聚焦显微镜对多孔介质进行三维成像，并应用于微尺度传输过程;地球物理与化学

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The authors present advances in the application of laser scanning confocal microscopy (LSCM) to image, reconstruct, and characterize statistically the microgeometry of porous geologic and engineering materials. The authors discuss technical and practical aspects of this imaging technique, including both its advantages and limitations., Confocal imaging can be used to optically section a material, with sub-micron resolution possible in the lateral and axis planes. The resultant volumetric image data, consisting of fluorescence intensities for typically approximately 50 million voxels in XYZ space, can be used to reconstruct the three-dimensional structure of the two-phase medium. The authors present several examples of this application, including studying pore geometry in sandstone, characterizing brittle failure processes in low-porosity rock deformed under triaxial loading conditions in the laboratory, and analyzing the microstructure of porous ceramic insulations. The authors then describe approaches to extract statistical microgeometric descriptions from volumetric image data, and present results derived from confocal volumetric data sets. Finally, the authors develop the use of confocal image data to automatically generate a three-dimensional mesh for numerical pore-scale flow simulations.

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