Grouting solution with carbon dioxide (СО₂)

Climate change is observed in all regions of the planet. This process is be­coming more intense, and some of the emerging trends are already irre­versible, at least at this stage. However, it is within the power of humanity to limit the scale of climate change, significantly reducing emissions of harm­ful substances into the atmosphere, including greenhouse gases, it is pos­sible to considerably improve air quality and stabilize global temperatures in a short time. The object of the study is the process of pumping carbon dioxide into cement used for grouting oil and gas wells. The study is based on the analysis of the relevance of the decarbonization project in the oil and gas industry, existing well cementing technologies, as well as methods of concrete production with carbon dioxide. In the course of the work, two hypotheses for injecting carbon dioxide into cement were identified. They use the basic method of cementing: mixing CO2, water and cement sepa­rately and cement with water immediately with CO2. Based on the results of the study, it can be concluded that the development and implementation of these technologies has the potential to significantly reduce greenhouse gas emissions, which contributes to the achievement of sustainable devel­opment goals.

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