Search

As a clean and renewable energy, hot dry rocks are the most potential part of exploiting and utilizing in the future, and the engineering technology of exploiting hot dry rock is called enhanced geothermal system. As a supplementary method of hydrofracture, chemical stimulation technology has the characteristics of low cost and risk, and plays a very important role in optimizing reservoir reform. Some related literatures at home and abroad about chemical stimulation technology in enhanced geothermal system（EGS）were reviewed, and the theoretical basis of chemical stimulation technology and several common chemical stimulants（conventional acid, retarded acid, chelating agent and CO2 chemical stimulants）were presented. In addition, the only EGS projects（Fenton Hill in America and Soultz in France）applying chemical stimulation technology in the world were introduced and summarized. On this basis, several suggests and expectations about chemical stimulation in EGS were also proposed, hoping to provide a reference for the scientific research and project implementation of EGS in China. [ABSTRACT FROM AUTHOR]