Conductivity Permeability Bulk Modulus

Illustrates feasibility of combining 3D experimental image data with numerical calculations to accurately predict properties of complex materials

Validation is through matching experimental data

1000 m1000

m

5000

m

0.005 m

4 wells 1km apart with 500 metres of core each well.Volumetric sensitivity: O[1 ppb]

0.02

5 m

4 core plugs100 m apart with one mini-plug eachVolumetric sensitivity: O[1 ppm]

0.1 m

Core-scale vs. Pore-scale

Image registration• Provide quality control on 3D image data• Enables introduction of automated petrographic /

mineralogical information into 3D image data• Enables repeat ex situ experimental

3D to 3D 2D to 3D

Coal characterisation of connected porosity, cleats, and fractures at 9μm res.

SEM

Dry tomo

Wettomo

differencetomo

Tight gas rock

Multiple Scale Registration: 1 ½ inch plug (20 micron resolution) registered to 4mm sample (2 micron resolution)

Reactivity: Mardie Green Sand – Barrow Is, WA

Courtesy of Rowan Romeyn (Hons. student).

Native state (0.5 mm) After exposure to CO2 equivalent

Using analogue fluids