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2 230 891

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IPC

(21) (22)

Application

2003128673/03, 2003-09-26

(24)

Start date

2003-09-26

(22)

Actual filing date

2003-09-26

(45)

Published

2004-06-20

(72)

Inventor

Ibragimov N.G.Ganiev G.G.Valeev M.Kh.Khannanov R.G.Lykov V.I.Salikhov V.R.Salikhov I.M.Lykov Ju.V.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Im. V.D. Shashina

DEVICE FOR OIL EXTRACTION Russian patent published in 2004 - IPC

Abstract RU 2230891 C1

FIELD: oil extracting industry.

SUBSTANCE: device has body of pump in form of two connected cylinders, upper one being of larger diameter with apertures in lower portion, lower one being of smaller diameter with inlet valve and filtering mesh. In the body a plunger is mounted with means for reciprocal movement in form of two connected cylinders, upper one of larger diameter and lower one of smaller diameter with a pressure valve. Upper cylinder of plunger has length greater than length of upper cylinder of body.

EFFECT: higher effectiveness of device operation during extraction of oil with large amounts of sand in it.

1 dwg

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RU 2 230 891 C1

Authors

Ibragimov N.G.

Ganiev G.G.

Valeev M.Kh.

Khannanov R.G.

Lykov V.I.

Salikhov V.R.

Salikhov I.M.

Lykov Ju.V.

Dates

2004-06-20—Published

2003-09-26—Filed