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Application

98123990/03, 1998-12-28

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Start date

1998-12-28

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Actual filing date

1998-12-28

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Published

1999-10-10

(72)

Inventor

Levitskij V.I.Starkova N.R.Mitrofanov A.D.Tarasov A.V.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Kompanija Chernogornefteotdacha"

METHOD FOR TREATING BOTTOM-HOLE ZONE OF LOW-PRODUCTIVE RESERVOIRS IN BED Russian patent published in 1999 - IPC

Abstract RU 2139425 C1

FIELD: oil producing industry. SUBSTANCE: method is aimed at increasing output capacity of low-productive beds. According to method, injected into bed is acidic solution and organic solvent. Before injection of acidic solution, well is cleaned by muriatic acid bath. After injection of acidic solution, injected is organic solvent. Then, well undergoes technological pause, and after that, well is put in operation. Used in function of acidic solution is mixture of muriatic acid and hydrofluoric acid, and used in function of organic solvent are low-grade spirits, glycols, acetone or light fractions of oil-processing. EFFECT: high efficiency. 2 cl, 1 tbl

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RU 2 139 425 C1

Authors

Levitskij V.I.

Starkova N.R.

Mitrofanov A.D.

Tarasov A.V.

Dates

1999-10-10—Published

1998-12-28—Filed

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