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Application

98123181/03, 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

1999-08-27

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Inventor

Zaljatov M.Sh.Musin M.Kh.Minibaev Sh.Kh.Esipov A.V.Panarin A.T.Salikhov I.M.Smirnov S.R.

(73)

Holder

Musin Marsel' KhasylovichMinibaev Shamil' Khamitovich

METHOD OF TREATING WELL BOTTOM ZONE Russian patent published in 1999 - IPC

Abstract RU 2135758 C1

FIELD: oil and gas production. SUBSTANCE: invention can be used when treating bottom zone of production well or production well converted into injection well. According to invention, casing string is cleaned, distillate is injected into well, and first process pause is performed. Then, 0.5-5% solution of nonionic surfactant in associated Devonian water is injected into well and forced into formation, after which second process pause follows. Additional depression perforation is carried out and casing string is cleaned once more. EFFECT: increased productivity of well.

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RU 2 135 758 C1

Authors

Zaljatov M.Sh.

Musin M.Kh.

Minibaev Sh.Kh.

Esipov A.V.

Panarin A.T.

Salikhov I.M.

Smirnov S.R.

Dates

1999-08-27—Published

1998-12-28—Filed

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