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Capturing and storing carbon dioxide (CO2) underground for thousands of years is
one way to reduce atmospheric greenhouse gases, often associated with global
warming. Leakage of CO2 through wells is one of the major concerns when storing
CO2 in depleted oil and gas reservoirs. CO2-injection candidates could be new wells,
or old wells that are activ...
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Dissolution of supercritical CO2 in deep saline aquifer is one of the large-scale CO2 storage methods to mitigate the global warming. Lighter CO2 is injected at supercritical conditions in heavier water/brine saturated reservoir at depth more than 800 m. We considered that CO2 was injected at slightly above the reservoir pressure. The computational...
Citations
In this Research, a ball mill procedure was used to prepare a nanopowder from a cement dust material supplied by Cement Factory for reinforcing the oil well cement through using it as a partial replacement of oil well cement class G by a weight percentage of (0.25 to 1%) and nanorod ZnO with the same percentages. The mix with a water to cement ratio was kept at 0.44. Characterizations of the structured prepared samples were done, density and compressive strength and free water. Experimental outcomes display that the generated nanopowder have a particle size of (100 nm) and that the structural properties improved significantly with the development phase of calcium silicate hydration C-S-H. Density and compressive strength significantly improved with lower free water. That makes it proper as smart cement for the oil well applications.