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2 039 237

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Application

5065729/03, 1992-10-13

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Actual filing date

1992-10-13

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Published

1995-07-09

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Inventor

Pozdeev Oleg Veniaminovich[Ru]Glushchenko Viktor Nikolaevich[Ua]Tul'Bovich Boris Izrailevich[Ru]Nevolin Valerij Grigor'Evich[Ru]Matjashov Sergej Vasil'Evich[Ru]Uzbekov Danis Makhmudovich[Ru]Chaplanov Pavel Evgen'Evich[Ru]Izmest'Ev Aleksandr Fedorovich[Ru]

(73)

Holder

Permskij Gosudarstvennyj Nauchno-Issledovatel'Skij I Proektnyj Institut Neftjanoj Promyshlennosti

COMPOUND FOR ACID TREATMENT OF BOTTOM-HOLE FORMATION ZONE Russian patent published in 1995 - IPC

Abstract RU 2039237 C1

FIELD: mining. SUBSTANCE: compound for acid treatment of bottom-hole formation contains, vol. surfactant EFIROX-7 product of etherification of ethoxylates of alcohols of fraction C7-12 with phosphorus pentoxides or PHOSPHOL-10 product of etherification of etherification of ethoxyisonnoylphenol (АФ9-10) with phosphorus pentoxide 1.0-4.0; the balance, 15-25% aqueous solution of hydrochloric acid. EFFECT: reduced rate of reaction of hydrochloric acid with carbonate rock, and ensured stabilization in used state with respect to iron ions. 1 tbl

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RU 2 039 237 C1

Authors

Pozdeev Oleg Veniaminovich[Ru]

Glushchenko Viktor Nikolaevich[Ua]

Tul'Bovich Boris Izrailevich[Ru]

Nevolin Valerij Grigor'Evich[Ru]

Matjashov Sergej Vasil'Evich[Ru]

Uzbekov Danis Makhmudovich[Ru]

Chaplanov Pavel Evgen'Evich[Ru]

Izmest'Ev Aleksandr Fedorovich[Ru]

Dates

1995-07-09—Published

1992-10-13—Filed

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