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2 065 919

(13)

C1

(51)

IPC

(21) (22)

Application

93048569/03, 1993-10-19

(22)

Actual filing date

1993-10-19

(45)

Published

1996-08-27

(72)

Inventor

Smirnov V.S.Makeev V.V.Ignatenko V.V.Dotsenko V.A.Prasolov M.F.

(73)

Holder

Vserossijskij Nauchno-Issledovatel'Skij Institut Prirodnykh Gazov I Gazovykh Tekhnologij

THERMALLY INSULATED LIFT TUBE Russian patent published in 1996 - IPC

Abstract RU 2065919 C1

FIELD: permafrost drilled hole equipment. SUBSTANCE: in arrangement of productive drilled holes in permafrost areas, production of thermal water, pumping steam into deposits with high viscosity oil and in other cases, thermally insulated lift tube setup is used which has load bearing tube and concentrically installed thermal-insulation housing and rigidly mounted between them are quarter-torus diaphragms. Clearance between housing and diaphragm ends is 205 mm. EFFECT: high efficiency. 1 dwg

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RU 2 065 919 C1

Authors

Smirnov V.S.

Makeev V.V.

Ignatenko V.V.

Dotsenko V.A.

Prasolov M.F.

Dates

1996-08-27—Published

1993-10-19—Filed

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