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2 097 537

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Application

95101977/03, 1995-02-09

(22)

Actual filing date

1995-02-09

(45)

Published

1997-11-27

(72)

Inventor

Khlebnikov V.N.Ganiev R.R.Jakimenko G.Kh.Andreeva A.A.Bikbova A.A.Adadurov Ju.N.Darintsev O.V.Sirotinskij A.S.

(73)

Holder

Nauchno-Issledovatel'Skij Institut

COMPOSITION FOR CONTROLLING PERMEABILITY OF BED AND WATER-INFLOW SHUTOFF Russian patent published in 1997 - IPC

Abstract RU 2097537 C1

FIELD: oil and gas production. SUBSTANCE: composition contains lignosulfonate (1-30 wt %) and exhausted alkali from gas scrubbing processes (70-99 wt %). Exhausted alkali contains at least 5% sodium hydroxide and/or sodium carbonate and has pH above 10. Lignosulfonate contains at least 30% of base material. Composition may be applied in middle and back stages of oil field development. EFFECT: improved controlling and insulator properties, reduced cost and toxicity. 6 tbl

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RU 2 097 537 C1

Authors

Khlebnikov V.N.

Ganiev R.R.

Jakimenko G.Kh.

Andreeva A.A.

Bikbova A.A.

Adadurov Ju.N.

Darintsev O.V.

Sirotinskij A.S.

Dates

1997-11-27—Published

1995-02-09—Filed

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