Pre-Stressed Insulated Tubing

This product is specially used for thermal production of heavy oil. Heat loss in wellbore can be greatly minimized during steam injection, enabling more heat to enter the reservoir and hence improve the steam injection efficiency. A new generation of this product is of vacuum-type with a process of “super insulation” which is composed of multi aluminum foil inter -layers. Its annulus is of vacuum and filled with getter. Techniques like skin effect heating, plugging by resistance weld and high precision apparent heat conduction coefficient testing, etc. It is also applied as the best insulation in the world.
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The General Machinery Plant of Liaohe Petroleum Exploration Bureau of CNPC
Hongcun street, Xinglongtai district, Panjin, Liaoning P.R., China [124209]
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