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Bottom-hole vibration damper with a sheathed variable-rigidity elastic element

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Chemical and Petroleum Engineering Aims and scope

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References

  1. S. V. Velichkovich, “Improving the efficiency of well drilling,” Ékspress-Inform., Ser. Burenie (VNIIOÉNG, Moscow), No. 9, 5–7 (1986).

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  2. S. V. Velichkovich, “Vibration damper for drill string in sinking wells in corrosive media,” Khim. Neft. Mashinostr., No. 3, 5–6 (1991).

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  3. Russian patent application No. 4,810,050, IPC E 21 B 17/06, Bottom-Hole Vibration Damper.

  4. Russian patent application No. 5,031,221, IPC E 21 B 17/06, Bottom-Hole Vibration Damper.

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Authors
  1. A. S. Velichkovich
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  2. S. V. Velichkovich
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Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 8, pp. 10–11, August, 1994.

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Velichkovich, A.S., Velichkovich, S.V. Bottom-hole vibration damper with a sheathed variable-rigidity elastic element. Chem Petrol Eng 30, 370–372 (1994). https://doi.org/10.1007/BF01147978

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  • DOI: https://doi.org/10.1007/BF01147978

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