Storage of carbon dioxide (CO₂) captured from fossil-fuel plants into deep marine sediment formation is one of promising methods for stabilization of atmospheric greenhouse gas concentrations. In general, an essential physical trapping mechanism in the geologic formation is the presence of a cap rock which acts as an upper seal to prevent fluid flow out of a reservoir. As CO₂ in liquid or supercritical phase is injected in oceanic sediment environment, diffused and transported CO₂ molecules will produce carbon dioxide hydrate (CO₂ hydrate) as a by-product in shallower sediments. The uncemented sediments are mostly classified as fine-grained sediments such as mixtures of sands, silts and clays, and are within 300 m below seafloor and at geothermal temperature less than about 283 K. CO₂ hydrate formation serves as a seal cap impeding the flow of CO₂ liquid and reducing the diffusion rate of dissolved aqueous CO₂. Thus, this phenomenon invokes an attractive idea for permanent storage of greenhouse gases into geologic formations. 

Current ongoing tasks are as follows: