FIELD: gas and oil industry, drilling of oil and gas wells. SUBSTANCE: centering mount includes hollow body coming in the form of two rings interconnected by means of spiral-like centering ribs between which restoring straps with scrapers are placed. Through holes with thread to accommodate studs whose working end has shape of sharpened funnel are made in ends of centering mount from outside. Invention is intended for increase of quality of reinforcement in cavernous, inclined and horizontal section of shaft of well. EFFECT: reduced usage of metal, improved quality of pressure grouting of cavernous section of shaft thanks to turbulization of upward current of cement mortar. 4 dwg
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