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(19)

(11)

2 027 472

(13)

(51)

IPC

(21) (22)

Application

5008232/26, 1991-10-31

(22)

Actual filing date

1991-10-31

(45)

Published

1995-01-27

(72)

Inventor

Dotsenko V.A.Gichev Valerij VladimirovichZhapargaliev Iglik KozhiakhmetovichJanikov Mejlis KhodzhadurdyevichBirjukov Mikhail Borisovich

(73)

Holder

Dotsenko Vladimir Antonovich

DRILLING MUD CLEANING DEVICE Russian patent published in 1995 - IPC

Abstract RU 2027472 C1

FIELD: crude oil production. SUBSTANCE: device has fine filter 11 and coarse filter 6 in form of slot screens made up of trapezoidal wire with ribs 12 and 8 for degassing of drilling mud and for uniform distribution of mud. Device has cup 13 for discharging cuttings and for sealing. Fitted in cup is auger 14 secured coaxially with coarse filter 6 by means of cross 15. EFFECT: enhanced quality of cleaning. 1 dwg

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RU 2 027 472 C1

Authors

Dotsenko V.A.

Gichev Valerij Vladimirovich

Zhapargaliev Iglik Kozhiakhmetovich

Janikov Mejlis Khodzhadurdyevich

Birjukov Mikhail Borisovich

Dates

1995-01-27—Published

1991-10-31—Filed