METHOD OF PROTECTION OF INNER SURFACE OF RESERVOIR BOTTOM AGAINST CORROSION Russian patent published in 2004 - IPC

Abstract RU 2221083 C2

FIELD: protection of metals against corrosion; oil producing, oil refining and other industries. SUBSTANCE: proposed method includes pumping inverted emulsion at density of not below 1200 kg/cu m into reservoir and use of carbon corrosion inhibitor solution possessing properties of emulsifying agent; reagent RDN is used for preparation of inverted emulsion; low-viscous carbon solvent of paraffin series is used as dispersion medium, for example diesel fuel or kerosene; aqueous solution of calcium chloride at density no below 1400 kg/cu m is used as dispersion phase with addition of water-soluble inhibiting and bactericidal additives at the following ratio of components, vol-%: RDN reagent, 1.0-10.0; diesel fuel or kerosene, 20.0-29.0; aqueous solution of calcium chloride at density not below 1400 kg/cu m and remainder being inhibiting and bactericidal additives. EFFECT: enhanced efficiency and durability of corrosion protection. 2 cl, 3 tbl, 3 ex

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RU 2 221 083 C2

Authors

Pozdnyshev G.N.

Manyrin V.N.

Manyrin V.N.

Kalugin I.V.

Dates

2004-01-10Published

2001-07-04Filed