Recently, the comprehensive performance evaluation results organized by the High Technology Research and Development Center of the National Natural Science Foundation of China were officially announced. The key project undertaken by our university, Key Scientific Issues in Transformative Technologies, and the Research on Key Materials and Mechanisms for Improving Recovery of Intelligent Fluids Regulating Oil/Water/Water Interface Wetting under the National Key R&D Program undertaken by our university, was awarded an A-level rating and successfully passed the comprehensive performance acceptance.

This project, led by Professor Dai Caili, has been approved for special funding of 26.73 million yuan, and is being coordinated with China National Petroleum Corporation Science and Technology Research Institute Co., Ltd., Institute of Physics and Chemistry Technology of the Chinese Academy of Sciences, Tsinghua University, University of Science and Technology of China, Haiyu Taihe (Shandong) Energy Technology Co., Ltd., and other organizations. The acceptance expert panel unanimously agreed that the project had clear research objectives, a scientific and reasonable technical route, standardized process management, fruitful output, compliant and efficient fund use, outstanding achievements in talent cultivation and discipline development, and a high-quality achievement of the overall project construction goals.

During project execution, the team focused on the core requirements of innovation and breakthrough in the special project, focusing on major scientific and technological challenges faced by the efficient development of low-permeability/ultra-low permeability oil and gas resources in China. After years of intensive efforts, they made significant progress in both basic theory and key technologies, breaking through multiple key technologies. In basic research, the first experiment confirmed the existence of ionic hydration between crude oil and rock, revealing the structural characteristics and formation mechanisms of ion hydration, and establishing a theory of adhesion regulation at the oil-rock interface in low-permeability/ultra-low permeability reservoirs; At the key materials and technology level, key materials and technologies for improving recovery of ultra-wetting intelligent fluids, as well as key technologies combining ultra-wet oil displacement and directional delivery for intelligent fluids to improve recovery, provide new technical pathways for improving the efficiency of small porosity, ripple, and displacement in low-permeability/ultra-low permeability reservoirs. Related technological achievements have been applied and validated in multiple oil and gas blocks, providing solid technical support for efficient development of low-permeability/ultra-low permeability oil and gas energy and green, low-carbon transformation in China.