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2 259 471

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IPC

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Application

2004109881/03, 2004-03-31

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Start date

2004-03-31

(22)

Actual filing date

2004-03-31

(45)

Published

2005-08-27

(72)

Inventor

Ibragimov N.G.Zajtsev V.I.Sattarova F.M.Antonov G.P.Shavaleev I.I.Shavaleeva E.V.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Im. V.D. Shashina

RADIOBARITE-CONTAINING MINERAL SALT SCALE PREVENTION METHOD Russian patent published in 2005 - IPC

Abstract RU 2259471 C1

FIELD: oil production industry, particularly for prevention of deposit formation in oil production, refinery and transportation equipment and for cleaning oil-field waste water containing barium ions and radium isotopes.

SUBSTANCE: method involves treating produced water and/or waste water containing barium ions and radium isotopes with aqueous salt solution; ejecting treated water in reservoir. The solution is underground water of upper horizon with high sulfate content and cleaned of sediments. Ratio between produced and/or waste water and underground water may be calculated from the following equation: 1:C_Ba·96.066/137.33·C_SO4, where 1 is produced and/or waste water fraction, C_Ba·96.066/137.33·C_SO4is underground water fraction, C_Ba is barium ion concentration in produced and/or waste water, 96.066 is specific weight of sulfate-ions, g, 137.33 is barium atomic weight, g and C_SO4is sulfate-ion concentration in underground water.

EFFECT: reduced material consumption, increased efficiency of scale formation prevention.

1 ex, 1 tbl

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RU 2 259 471 C1

Authors

Ibragimov N.G.

Zajtsev V.I.

Sattarova F.M.

Antonov G.P.

Shavaleev I.I.

Shavaleeva E.V.

Dates

2005-08-27—Published

2004-03-31—Filed