Parallel numerical simulation on CO2 geologic storage in Ordos Basin, China

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The authors developed a 3-D numerical injection model on parallel TOUGH2-FLAC3 D based on the site-specific stratigraphic information in Ordos Basin to simulate the Shenhua CO_2 geological storage( CGS)demonstration project injection process for three years and forecast CO_2 migration and layers displacement after injection for seven years. The results suggested that CO_2 migration did not stop after three years of consecutive injection,but migration rate was slowing down with time. As a result,displacement near injection well increased with injection and decreased slowly after injection. The maximum displacement of surface center occurred near the end of injection,which was only 1. 24 cm. According to the displacement result,it is safe to continue injecting for this project. The authors developed a 3-D numerical injection model on parallel TOUGH2-FLAC3 D based on the site-specific stratigraphic information in Ordos Basin to simulate the Shenhua CO_2 geological storage (CGS) demonstration project injection process for three years and forecast CO_2 migration and layers displacement after injection for seven years. The results suggested that CO_2 migration did not stop after three years of consecutive injection, but migration rate was slowing down with time. maximum displacement of surface center occurred near the end of injection, which was only 1. 24 cm. According to the displacement result, it is safe to continue injecting for this project.
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