Tungsten alloy coated tube has excellent wear resistance, erosion resistance, scaling resistance, high temperature and pressure resistance, acid and alkali resistance. It has outstanding corrosion resistance in wells rich in H2S, O2, CO2 and other gases, and the mechanical properties of the original tubes are not changed.
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The surface finish of tungsten alloy coated tube is high, which can effectively reduce the area flocculation caused by the unsmooth surface or the corroded surface in the tube, thereby avoiding the occurrence of scaling and wax formation caused by the increase of the local well fluid supersaturation. It can be used for a long time in hot and humid environment with high temperature. It can be transported and operated in the same way as normal tubing without affecting corrosion resistance.