ROTATING PREVENTER Russian patent published in 1995 - IPC

Abstract RU 2027847 C1

FIELD: sealing of mouths of oil and gas wells at drilling. SUBSTANCE: PREVENTER has base, case, rotating shaft provided with sealing element, rotational unit and seal. Preventer is provided with plunger pump with spring-loaded step plunger which is intended for lubrication of the seal. Faceplate is mounted onto rotating shaft of the preventer for interaction with plunger; faceplate is provided with a cam. EFFECT: automatic mode of lubrication depending on speed of rotation of the PREVENTER. 3 dwg

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RU 2 027 847 C1

Authors

Tagirov K.M.

Lutsenko Ju.N.

Nifantov V.I.

Romanovskij A.A.

Dates

1995-01-27—Published

1990-12-06—Filed