CENTERING MOUNT-TURBOLATOR FOR CASING STRING Russian patent published in 2000 - IPC

Abstract RU 2159839 C2

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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RU 2 159 839 C2

Authors

Galeev R.G.

Khannanov S.N.

Fedorov V.A.

Kashapov S.A.

Kateev I.S.

Kateev T.R.

Dates

2000-11-27Published

1998-11-16Filed