METHOD OF TREATMENT OF BOTTOM-HOLE FORMATION ZONE Russian patent published in 2001 - IPC

Abstract RU 2176020 C2

FIELD: oil and gas producing industry. SUBSTANCE: method may be used for increasing of well productivity. Method includes successive injection into formation of fringes of water-soluble low-molecular solvent, oil-soluble low-molecular solvent and oil. Fringes are injected with ratio of volumes of fringes of water-soluble, oil-soluble low-molecular solvents and oil of 0.35:0.1:0.55. EFFECT: higher efficiency of treatment of bottom-hole formation zone due to restoration of permeability of porous medium and its hydrophobization for improving filtration of hydrocarbons. 1 dwg, 1 tbl

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RU 2 176 020 C2

Authors

Jurkiv N.I.

Somov V.F.

Dates

2001-11-20Published

1999-12-21Filed