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Application

2000106266/03, 2000-03-13

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Start date

2000-03-13

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Actual filing date

2000-03-13

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Published

2002-06-27

(72)

Inventor

Selimov F.A.Khajretdinov N.Sh.Kachin V.A.Kustov N.I.Kuzin S.L.Telin A.G.Blinov S.A.Chuprov N.M.Nechaeva O.E.

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Holder

Institut Neftekhimii I Kataliza An Rb I Unts RanNauchno-Issledovatel'Skij Institut

COMPOSITION FOR TREATING CARBONATE FORMATIONS Russian patent published in 2002 - IPC

Abstract RU 2184224 C2

FIELD: oil and gas production. SUBSTANCE: composition intended to increase recovery of oil and gas from formation contains, wt.%: 1.3-% hydrochloric acid solution, 80-96; polyglycol, 3.8-15; oxyethylenated fatty acids, 0.1-2; and neonol, 0.1-3. EFFECT: enhanced well treatment efficiency due to low viscosity and high permeability of composition as well as to decreased velocity and dissolving ability in water- saturated part of carbonate formation and increased dissolving capacity of oil- saturated part of formation. 2 tbl

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RU 2 184 224 C2

Authors

Selimov F.A.

Khajretdinov N.Sh.

Kachin V.A.

Kustov N.I.

Kuzin S.L.

Telin A.G.

Blinov S.A.

Chuprov N.M.

Nechaeva O.E.

Dates

2002-06-27—Published

2000-03-13—Filed