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(19)

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1 753 750

(13)

A1

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IPC

(21) (22)

Application

4648286/03, 1989-02-08

(22)

Actual filing date

1989-02-08

(45)

Published

1995-03-10

(72)

Inventor

Gabdullin R.G.Muslimov R.Kh.Shajakhmetov Sh.K.

EQUIPMENT FOR COMBINED OF SEPARATE INJECTION OF FLUID INTO TWO FORMATIONS THROUGH ONE WELL Russian patent published in 1995 - IPC

Abstract SU 1753750 A1

FIELD: gas and oil producing industry. SUBSTANCE: equipment for combined or separate injection of fluid into two formations through one well includes special unit lowered into cased well on tubing. Special unit has bushing with blades and leaf springs having on their outer sides shutoff members in form of ball, and seats are made in filtration holes found opposite producing formations on the side of tube space. EFFECT: simplified design and extended functional capabilities. 4 dwg

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SU 1 753 750 A1

Authors

Gabdullin R.G.

Muslimov R.Kh.

Shajakhmetov Sh.K.

Dates

1995-03-10—Published

1989-02-08—Filed

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