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2 030 558

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C1

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IPC

(21) (22)

Application

5019870/03, 1991-07-29

(22)

Actual filing date

1991-07-29

(45)

Published

1995-03-10

(72)

Inventor

Kateev I.S.Zhzhonov V.G.Fatkullin R.Kh.Mansurov R.Kh.Moskvicheva N.T.

(73)

Holder

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

COMPOUND FOR SHUTTING-OFF LOST CIRCULATION ZONE Russian patent published in 1995 - IPC

Abstract RU 2030558 C1

FIELD: well drilling. SUBSTANCE: compound contains, mas.%: bentonite mud powder 4-12; polyacrylamide 0.02.004; nonexplosive destruction means HPC-1 0.25-0.5; the balance, water. Introduced suspension is mixed, and HPC-1 is added and mixed. EFFECT: highly efficient isolation of lost circulation zone in the process of its opening.

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RU 2 030 558 C1

Authors

Kateev I.S.

Zhzhonov V.G.

Fatkullin R.Kh.

Mansurov R.Kh.

Moskvicheva N.T.

Dates

1995-03-10—Published

1991-07-29—Filed

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