The upper percolation threshold and porosity-permeability relationship in sandstone reservoirs using digital image analysis.

Subsurface sandstone deposits represent globally ubiquitous reservoirs which can potentially provide the characteristics necessary for the effective geological storage of CO. Geological carbon storage is widely agreed to be a key asset in tackling anthropogenic emissions and climate change to reach a sustainable 'net zero', despite the present financial challenges associated with it. Therefore, improved understanding of the characteristics of the materials in which we plan to store many gigatons of CO is critical.

The influence of grain shape and size on the relationship between porosity and permeability in sandstone: a digital approach.

An accurate and reliable description of the porosity-permeability relationship in geological materials is valuable in understanding subsurface fluid movement. This is important for reservoir characterisation, energy exploitation, geological carbon storage (GCS) and groundwater contamination and remediation. Whilst the relationship between pore characteristics and porosity and permeability are well examined, further investigation into the influence of grain characteristics on porosity and permeability would be beneficial due to the inherent relationship between grains and pores.

Using alt text to make science Twitter more accessible for people with visual impairments.

Scientists increasingly post images and photos on social media to share their research activities. However, posting images and photos could potentially exclude people with visual impairments. Here, we outline actions that should be taken to foster accessibility and inclusion in posting scientific images on social media.