Carbon Nanocomposite for Reliable Seal Applications in High-Temperature, High-Pressure, Corrosive Environments

Achieving a reliable seal in the extremely harsh environments of high pressure, high temperature (HPHT), and corrosive fluids has been highly demanded in various industries, including oil and gas, aerospace, chemicals, and nuclear, etc. Traditional seal materials such as rubber or plastic often fail to achieve reliable sealing due to thermal degradation under hot, wet, and corrosive conditions. Metal-to-metal seals also show limited success due to their low elasticity and weak acid corrosion resistance at HT. This paper presents a novel carbon-based nanocomposite that exhibits a temperature rating higher than 300 °C, filling a technical gap of high-temperature sealing materials in extremely corrosive environments. The composition-microstructure-property relationship and superior seal performance of this novel nanocomposite will be discussed.