FIELD: oil and gas industry.
SUBSTANCE: invention refers to supporting centring devices used in bottom hole assembly (BHA) at controlled directional drilling of wells. A vibration calibrating device for well drilling includes a hollow housing with longitudinal blades welded on it, inside which there located on the axis is a bladed spool installed with possibility of periodic covering of a flow cross-section, which amplifies high-frequency longitudinal vibrations of a bit, which contribute to effective destruction of mine rock, reduces torsion and transverse vibrations of BHA, and allows well centring and calibration.
EFFECT: improving well drilling efficiency.
2 dwg
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