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Kamenskikh S. V.
The study and analysis of the influence of hydrogen sulfide in rock cutting and drilling tools

The article studied and analyzed the theoretical and laboratory studies to assess the impact of pH and concentration of hydrogen sulfide in rock cutting and drilling tools. It is established that with increase in pH resistance of the drill bit increases with increasing concentration of hydrogen sulphide resource (durability) of rock cutting tool decreases. It is shown that the formation water containing hydrogen sulphide, aggressive oil with H2S, in spite of lower concentration. It was confirmed that in conditions of hydrogen sulfide aggression you need to apply more “soft” steel and high-alkaline drilling fluids.

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