| 简介 |
Useful model relates to the field of mining, in particular to pipes, designed for operation in wells with aggressive media, containing hydrogen sulfide and carbon dioxide. Of pipe, made from steel, containing carbon, silicon, manganese, chromium, molybdenum, vanadium, niobium, aluminium, rare-earth metals in specified quantities, and subjected to thermal, have high level of mechanical properties and resistance to corrosion in various aggressive media, which provides for possibility of use as pump-compressor and casing pipes for oil wells. |
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