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feed material with increased efficiency mainly for perforation of the row in kolvetesproducerande kellor
feed material with increased efficiency mainly for perforation of the row in kolvetesproducerande kellor
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机译:效率提高的饲料原料,主要用于kolvetesproducerande kellor中的排孔
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摘要
The liner of a hollow charge that is to be used for perforating pipes of hydrocarbon-producing wells consists of elementary bismuth, an alloy thereof, or a metal mixture thereof. Preferred are eutectic alloys consisting of: 55.5% Bi and 44.5% Pb; 58% Bi and 42% Sn; 60% Bi and 40% Cd; 28.5% Pb, 14.5% Sn, 9% Sb, 48% Bi, or Bi/Co alloy containing 0.7% Bi.
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