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In extremely low-temperature environments, non-metallic seals cannot achieve their best sealing performance and extra measures are needed to ensure their operation at suitable temperatures. Special rubber materials can be used to produce cores and seals for low-temperature conditions.

At even lower environmental temperatures, well control equipment needs to be treated with special measures, such as anti-freezing, insulation, and heating, to maintain good performance.

The surface of the blowout preventer can be heated using electric heating methods, and the heating devices' components meet explosion-proof requirements. Steam heating can also be used by designing unique steam channels inside the body of the blowout preventer. High-temperature steam passes through the body to provide heating and insulation for the preventer, enabling non-metallic seals to achieve normal sealing in extremely cold environments.

In the high-altitude or polar regions, the well control system adopts multiple insulation and heating modes, such as electric heating or steam heating. The modular design integrates three-way and four-way reversing valves, pressure reducing valves, and other components to ensure that electrical and valve components can operate normally in extremely cold environments, improving the reliability of the control system in low-temperature environments.