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2 211 372

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Application

2002112123/06, 2002-05-06

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Start date

2002-05-06

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Actual filing date

2002-05-06

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Published

2003-08-27

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Inventor

Urazakov K.R.Gabdrakhmanov N.Kh.Galiullin T.S.Abutalipov U.M.Gabdrakhimov N.M.Jusupov I.R.

(73)

Holder

Dochernee Obshchestvo S Ogranichennoj Otvetstvennost'Ju Nauchno-Issledovatel'Skij I Proektnyj Institut Nefti" Otkrytogo Aktsionernogo Obshchestva Neftjanaja Kompanija

SUCKER-ROD WELL PUMP Russian patent published in 2003 - IPC

Abstract RU 2211372 C1

FIELD: oil extraction from deep boreholes. SUBSTANCE: pump has barrel with plunger accommodated in casing that forms circular cavity together with barrel. Cavity accommodates diaphragm that covers one of barrel holes. Other hole communicates with circular cavity. Bottom part of pump houses viscoplastic liquid container communicating with circular cavity. EFFECT: reduced wear probability of barrel-and-plunger pair; reduced borehole liquid leakage. 3 cl, 1 dwg

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RU 2 211 372 C1

Authors

Urazakov K.R.

Gabdrakhmanov N.Kh.

Galiullin T.S.

Abutalipov U.M.

Gabdrakhimov N.M.

Jusupov I.R.

Dates

2003-08-27—Published

2002-05-06—Filed

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