Research Status and Progress on Technologies for Exploration of Dry Hot Rock Resources in China

Abstract Hot Dry Rock (HDR) represents a clean and renewable geothermal energy source, playing a crucial role in global energy transition and climate change mitigation. China possesses abundant HDR resources. However, compared to the international advanced level, domestic exploration technology is still in its early stages. This paper analyzes the distribution of HDR resources in China and the achievements in exploration projects. It delves into the principles, applications, limitations, and development trends of key technologies in the main processes of HDR resource exploration. The paper emphasizes the necessity of improving exploration precision, enhancing high-temperature drilling fluid development, advancing logging technology, and establishing unified evaluation standards. Furthermore, it highlights the potential of artificial intelligence and big data technologies in improving exploration efficiency and reducing development risks, aiming to provide scientific technical guidance and practical references for the exploration and utilization of HDR resources in China.