Depleted oil reservoirs are considered a viable solution to the global challenge of CO₂ storage. A key concern is whether the wells can be suitably sealed with cement to hinder the escape of CO₂. Under reservoir conditions, CO₂ is in its supercritical state, and the high pressures and temperatures...

Applying positive potential to a steel electrode immersed into a cement changes the packing of cement particles in the vicinity of the electrode surface. The electrophoresis-induced packing enhancement at anode has promising applications in oil & gas and CO₂ storage industries since it could be used...

For successful CO₂ storage in underground reservoirs, the potential problem of CO₂ leakage needs to be addressed. A profoundly improved understanding of the behavior of fractured cement under realistic subsurface conditions including elevated temperature, high pressure and the presence of CO...

Long-lasting cement plugging of wells is crucial for successful CO₂ storage in underground reservoirs. It requires a profoundly improved understanding of the behavior of fractured cement under realistic subsurface conditions including elevated temperature, high pressure and the presence of CO...

The quality of bonding between cement and steel in wells is controlled by the interfacial transition zone (ITZ). Micro-computed X-ray tomography (μ-CT) imaging with synchrotron radiation was used in the current paper to study the development of ITZ at the early stages of hydration. The experiments...