3D characterization of complex pore-networks of carbonate rocks from sub-micron to centimeter scale

01 January 2012 → 31 December 2017
Research Foundation - Flanders (FWO)
Research disciplines
  • Natural sciences
    • Geology
image analysis mineralogy 3D pore structures
Project description

Traditional pore classification systems in geomaterials rely on subjective 2D descriptions of 3D pore structures. Recent developments in CT and image analysis research allow characterisation of complex pore-networks in 3D from sub-micron to centimetre scale, as encountered in carbonate rocks. The possibility to quantify this 3D porosity urges for the formulation of a new pore classification system, based on the 3D characteristics of pores and calibrated by using standard and more advanced petrophysical analyses. This should finally also contribute to a better porosity –permeability correlation. Additionally, the aspect of the smallest volume, that can be taken as a representation for the entire sample that does not respond to small changes in volume of location, will be addressed since in CT-technology sample size is related to resolution. An upscaling strategy will be set up in which data on porosity acquired at different resolutions (from micro- to macro porosity) and sample sizes are aligned. This will finally help to understand the major controlling factors on pore development

and permeability.