Why can Vacuum Insulated Tubing be used in geothermal well?
northern Europe map
In recent years, global climate has deteriorated, global warming, and countries such as Northern Europe (Sweden, Norway, Finland, Denmark, Iceland) have begun to develop non-fossil energy sources such as geothermal, solar, and wind energy.
In Northern Europe, there are often extreme nights, which are not conducive to the development of solar energy, which is a very good source of energy. Because the latitude is relatively high, even if the temperature of 2000-3000m below the surface is only 40-60 degrees, if only the conventional geothermal mining method is used, the mining efficiency of geothermal energy will be greatly reduced.
The insulated oil pipe originally used for heavy oil thermal recovery in the petroleum industry came into use at this time. The insulated oil pipe can be used as a thermal insulation bottle to maintain good insulation.
Vacuum insulated tubing uses water-based fiber cloth material with a three grade vacuum pump equipment,automatic welding machine and MT. These guarantees a high degree of vacuum level that meets the insulation grades D and E.
That is why Vacuum Insulated Tubing is very popular in geothermal wells.
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