Non-isothermal modeling of CO2 injection into saline aquifers at a low temperature
作者： Ruirui Zhao , Jianmei Cheng
DOI: 10.1007/S12665-014-3781-9
关键词: Hydrology 、 Saline aquifer 、 Aquifer 、 Pressure buildup 、 Geology 、 Plume 、 Isothermal process 、 Mass fraction 、 Transition zone 、 Carbon dioxide 、 Soil science
摘要: To investigate the effects of temperature on CO2 storage in deep saline aquifers, we set up a 2-D non-isothermal numerical model with simulating injection into aquifers at low temperature. The evolution plume and aquifer were studied, using signal to monitor arrival was also evaluated. In addition, deviance isothermal analyzed. results show when cold is injected can be divided three zones direction away from well during period: drop zone, transition rise zone. reach approximately 1 °C zone period, which should enough for sensor detect plume. However, value reduces distance well. Consequently, indicate that it not suitable long-term migration signal, especially after stops. initial formation strongly affects distribution injection. Not only safer, but more feasible aquifer. small mass fraction dissolved time throughout simulation. pressure buildup great increases (up 15 %) period. necessary accurately assess around
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