Storing captured CO2 within the under ground aquifers to reduced CO2 emission could serve the safe long term storage option. However, operation costs a lot. While, injection of CO2 within the natural gas hydrate reservoirs which is associated with CH4 production could compensate the cost of CO2 storage. Besides production of CH4 from natural gas hydrate reservoirs causes the de-stability of gas producing area which leads to land slides and geological hazards in the area. However, as a result of stable CO2 hydrate formation, combining the CO2 storage with CH4 production could hold the structural stability of the production areas. In this work, we used a reactive transport simulator to model injection of CO2 within the intact methane hydrate reservoir. Our model showed the CO2 hydrate formation within the gas hydrate areas.

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