Jie Zhang, Associate Professor at Southwest Petroleum University. He has research interests in the area of energy equipment design, pipeline mechanics and geothermal energy utilization. Research projects include National Natural Science Foundation of China, China Postdoctoral Science Foundation, Sichuan Science and Technology Project, etc. He has published more than 60 papers and 3 monographs. He has obtained 13 Chinese invention patents and 3 scientific and technological progress awards of Sichuan Province.Chuanjun Han, Professor at Southwest Petroleum University, is mainly engaged in the design, simulation and manufacturing of petroleum machinery. Research projects include the National Natural Science Foundation of China, China Postdoctoral Fund, Sichuan Outstanding Youth Fund, etc. More than 50 research papers and 2 monographs have been published. He has won the second prize of National Science and Technology Progress Award and the first prize of Sichuan Science and Technology Progress Award, and is a reserve candidate for academic and technological leaders in Sichuan Province.

• 1. Background 2. A Rubber Experiment and the Constitutive Model 3. Mechanical Behavior and Sealing Performance of the Rubber Sealing Rings 4. Metal-rubber Sealing Structure in the Roller Cone Bit 5. Stator Rubber of the Positive Displacement Motor (PDM) 6. Sealing Structure of the Pump 7. Wellhead Blowout Preventer 8. Downhole Rubber Packer