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2 101 467

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IPC

(21) (22)

Application

95118965/03, 1995-11-09

(22)

Actual filing date

1995-11-09

(45)

Published

1998-01-10

(72)

Inventor

Takhautdinov Sh.F.Jusupov I.G.Dobroskok B.E.Kadyrov R.R.Zherebtsov E.P.Andreev V.A.Salimov M.Kh.

(73)

Holder

Aktsionernoe Obshchestvo

DEVICE TO PREVENT FREEZING OF PRODUCING WELL HEAD Russian patent published in 1998 - IPC

Abstract RU 2101467 C1

FIELD: oil production industry. SUBSTANCE: this relates to heating devices at emergency discontinuation of water injection into well. Device to prevent freezing of well head can be made completely of standard equipment inside casing string, and this allows aforesaid device to be operated either in mode of regular heat exchanger for heating ground around well, or in mode of convective heat exchanger for heating well head at emergency discontinuation of water injection into well. EFFECT: high efficiency. 1 cl, 1 dwg

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RU 2 101 467 C1

Authors

Takhautdinov Sh.F.

Jusupov I.G.

Dobroskok B.E.

Kadyrov R.R.

Zherebtsov E.P.

Andreev V.A.

Salimov M.Kh.

Dates

1998-01-10—Published

1995-11-09—Filed