Abstract: CO2 geological storage is one of the effective means to reduce net CO2 emissions. CO2 geological storage has a history for more than ten years in developed countries. Currently, research of this aspect is started just now in China; so it is very necessary to carry out an investigation on the status quo of CO2 geological storage technology in China. CO2 geological storage process involves three factors: capture of the CO2 from the power plant or industrial process; transmission of the CO2 to the storage site followed by injection into the geological reservoir. Many of the technologies required for large-scale geological storage of CO2 already exist in the existing industry and the oil and gas industry. Now a preliminary investigation on the status quo of technologies of CO2 capture, CO2 transportation and CO2 injection and storage in the existing industry and the oil and gas industry in China is carried out and compared it with foreign countries; the findings of investigation show that there is a certain disparity of CO2 geological storage technology between China and foreign countries; however, there is a certain technology base of CO2 geological storage technology in China, especially, there is a certain practical experience in the aspect of CO2 recycling and injection.

Key words: carbon dioxide, geological storage, technical factors, status quo