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2 032 066

(13)

C1

(51)

IPC

(21) (22)

Application

5058255/03, 1992-08-10

(22)

Actual filing date

1992-08-10

(45)

Published

1995-03-27

(72)

Inventor

Gabdullin R.G.Shajakhmetov Sh.K.

(73)

Holder

Tatarskij Gosudarstvennyj Nauchno-Issledovatel'Skij I Proektnyj Institut Neftjanoj Promyshlennosti

PACKER Russian patent published in 1995 - IPC

Abstract RU 2032066 C1

FIELD: oil-and gas-producing industry. SUBSTANCE: to enable the packer to be used in horizontal wells, extension with piston are housed in packer body, self-sealing cup is installed on extension, the piston and extension forming, together with body above the self-sealing cup, an annular chamber which accommodates piston stroke limiter. Valve is made as a hydraulically-destroyed diaphragm. EFFECT: improved design. 2 dwg

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RU 2 032 066 C1

Authors

Gabdullin R.G.

Shajakhmetov Sh.K.

Dates

1995-03-27—Published

1992-08-10—Filed

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