The project "Key Technologies and Industrial Application of Ultra-high Pressure Mechanical Seal in Complex Drilling and Well Completion Conditions" jointly completed by our company, Ningbo Institute of Materials Science and Technology of Chinese Academy of Sciences and Beijing Jieshiji was awarded the third prize of Zhejiang Provincial Science and Technology Award in 2022.
The project has developed a new balanced floating structure mechanical sealing pipe assembly, breaking through the key technologies of toughening and wear resistance of mechanical seal end surface materials, and solving the technical problems of ultra-high pressure drilling and completion in complex working conditions. It has been successfully applied to deep wells in the Kalim, Sichuan, and Ordos Basins and shale oil and gas drilling and completion. It has the remarkable characteristics of easy installation and maintenance, high pressure resistance and long life, which greatly reduces the labor intensity of people and greatly improves the drilling and completion operation efficiency and safety. The overall level of this achievement is internationally advanced.