COMPOSITION FOR CHEMICAL TREATMENT OF WELLS Russian patent published in 1997 - IPC

Abstract RU 2076131 C1

FIELD: oil and gas production. SUBSTANCE: composition removes salts, asphalt-tar and paraffin deposits, and corrosion products and prevents them from formation in petroleum production, transportation, and storage systems. Composition contains at least one organic acid: hydroxyethylidenediphosphonic, acetic, formic, and/or benzenesulfonic acid; inorganic acid(s): phosphoric, and/or hydrofluoric acid; ionic or nonionic surfactant; water; and at least one organic solvent: acetone, dimethylformamide, toluene, and/or oil solvent. EFFECT: improved performance characteristics. 2 cl, 6 tbl

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RU 2 076 131 C1

Authors

Akhmetshina Iliza Zagitovna

Dates

1997-03-27Published

1994-08-05Filed