Now showing items 1-6 of 6
Topographic effects on CO2, diffusion and dissolution from the seafloor
At 3000 meters depth liquid CO2 is denser than seawater and hence will be stored as a “lake” on the deep ocean floor, which is expected to gradually be dissolved in seawater. Ocean currents and turbulence will influence ...
Transport and storage of CO2 in natural gas hydrate reservoirs
Storage of CO2 in natural gas hydrate reservoirs may offer stable long term deposition of a greenhouse gas while benefiting from methane production, without requiring heat. By exposing hydrate to a thermodynamically preferred ...
Risk of Leakage versus Depth of Injection in Geological Storage
One of the outstanding challenges for large-scale CCS operations is to develop reliable quantitative risk assessments with a focus on leakage of both injected CO2 and displaced brine. A critical leakage pathway is associated ...
A numerical study of transport and spreading of gases from natural analogues of gas-seepage through the seafloor
Natural leakages of CO2 are reported in the literature at mid ocean ridges and CH4 seepages in hydrocarbon rich ares. These could potentially serve as natural analogues of leakages from CO2 storages. In this study we have ...
Reactive Transport of CO2 in Saline Aquifers with implicit geomechanical analysis
Geological storage of CO2 in saline aquifers is a promising way to reduce the concentration of the greenhouse gas in the atmosphere. Injection of CO2 will, however, lead to dissolution of minerals in regions of lowered pH ...
Effects of salinity on hydrate stability and implications for storage of CO2 in natural gas hydrate reservoirs
The win-win situation of CO2 storage in natural gas hydrate reservoirs is attractive for several reasons in addition to the associated natural gas production. Since both pure CO2 and pure methane form structure I hydrate ...