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Vol 136
Pages:
138-143
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RUS
Article

Selection of criterion and calculation method for drill string bottom layouts for core drilling

Authors:
A. G. Kalinin1
A. F. Fedorov2
K. M. Solodky3
A. S. Povalikhin4
G. V. Korosteleva5
About authors
  • 1 — Moscow Institute of Geological Prospecting
  • 2 — VNIIBT
  • 3 — VNIIBT
  • 4 — VNIIBT
  • 5 — VNIIBT
Date submitted:
1992-07-27
Date accepted:
1992-09-04
Date published:
1993-06-03

Abstract

Calculation and design of bottom of drill string (BHA) assemblies involves the determination of such geometric parameters (diameter of the centralizers and their location relative to the drill bit), at which the maximum functional effect.

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