| 摘要 |
FIELD: oil and gas industries. SUBSTANCE: borehole casing pipe has metal base and shock-proof anticorrosive glass-enamel coating reinforced by alumina fiber of desired fineness applied to outer and inner surfaces of metal base; shock-proof anticorrosive glass-enamel coating reinforced by alumina fiber of desired fineness is covered in its turn with quartz sand layer fused into glass enamel. EFFECT: enhanced corrosion resistance of casing pipe and shock resistance of glass-enamel coating. 1 dwg, 1 tbl
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