The thermal insulation oil pipe coupling, with utility model patent number ZL202420358743.5.

The outer diameter of the coupling is 114.3mm, and the internal connection of the casing is reinforced with ribs. On both sides of the ribs, from the inside out, a thermal radiation reflection layer and an aerogel layer with thermal insulation properties are fixed. The inner wall of the coupling is fixed with a rubber sleeve, which provides the coupling with high strength and a thermal conductivity coefficient as low as 0.02 W/m·K. When the coupling is connected to oil pipes at both ends, and the well fluid flows through the coupling from one pipe to the other, the coupling as a whole performs a thermal insulation function.