Pore connectivity analysis of volcaniclastic rocks (CASP.IVR.2)
To fully understand the potential of volcaniclastic rocks to store CO2 it is imperative that detailed measurements of effective porosities, pore networks and permeability simulations are obtained for a variety of volcaniclastic rock compositions. Examining the variability in mineralogy with porosity and permeability will help constrain the impact the higher reactivity of these lithologies will have on CO2 storage compared to conventional reservoirs. For example, are the secondary minerals (e.g. clays, zeolites), either already present or a resultant of mineral reactions with carbonic acid, a hindrance (e.g. pore clogging) or benefit (e.g. zeolite adsorbents/microporosities) to CO2 sequestration?
In this project, the reservoir properties of volcaniclastic rocks will be characterised through the analysis of porosities, reactive surface areas, pore network modelling and permeability simulations on a subset of samples from the petrophysical database (CASP.IVR.01) using X-ray micro-CT (Computer Tomography). The data will be used in calculations to quantify potential CO2 storage and mineral carbonation.
Results will be delivered via a data release with an associated presentation for client companies and a final technical report containing the following data for at least ten volcaniclastic rock samples:
- Non-destructive 3D imagery
- Total porosity volume models
- Effective/connected porosity volume models
- Pore network models
- Vertical and horizontal permeability simulations
- Total CO2 sequestration potentials
The project has a planned duration of 15 months.
Contact: Simon Passey for further information about this research and licensing options.
- Mudrock Seals in CO2 Storage Systems Thematic Research
- Bunter Sandstone Storage Complex Thematic Research
- A palynozonation of the Bunter Sandstone CO2 storage complex: onshore analogue study (CASP.BSSC.1)
- Palynostratigraphy of the Bunter Sandstone CO2 storage complex in the Southern North Sea (CASP.BSSC.2)
- Cyclostratigraphy of the Early to Middle Triassic of the Southern North Sea (CASP.BSSC.3)
- Reservoir composition and diagenesis (CASP.BSSC.4)
- Controls on Bunter Sandstone composition (CASP.BSSC.5)
- Middle Triassic seals – onshore analogue study (CASP.BSSC.6)
- Middle Triassic seals – UK and Dutch offshore wells study (CASP.BSSC.7)
- Reactions and Flow of CO2 Fluid in Compositionally Immature Sandstones Thematic Research
- The Impact of Volcaniclastic Rocks on CO2 Storage Thematic Research
- Data Packages
- Geological Collections and Data