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Application

2003110797/03, 2003-04-16

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Start date

2003-04-16

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Actual filing date

2003-04-16

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Published

2004-09-20

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Inventor

Kozin V.G.Muslimov R.Kh.Shakirov A.N.Ismagilov O.Z.Bashkirtseva N.Ju.Gusev Ju.V.Kudrjashov V.N.Garaev L.A.Gabidullin R.I.Garipov R.N.Rakhmatullin R.R.Khusnullin M.G.

(73)

Holder

Shakirov Al'Bert Nailovich

OIL STRATUM PRODUCTION-INCREASING COMPOSITION Russian patent published in 2004 - IPC

Abstract RU 2236574 C1

FIELD: oil and gas production.

SUBSTANCE: invention aims at increasing production of oil strata under watering conditions as well as at treating bottom zone of formation. Oil stratum production-increasing composition comprises 5-30% liquid hydrocarbon, 2-20% water-soluble nonionic surfactant, and water, said surfactant being mixture of polyoxyethylene glycol ethers of synthetic primary higher fatty alcohols of general formula CnH2n+1O(CH2CH2O)mH, where n=12-14 and m=10, with molecular weight 620-654 and said liquid hydrocarbon being polyalkylbenzene resin with molecular weight 120-220.

EFFECT: enhanced efficiency of composition, especially in cases of strata with hardly extractable stock.

2 tbl

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RU 2 236 574 C1

Authors

Kozin V.G.

Muslimov R.Kh.

Shakirov A.N.

Ismagilov O.Z.

Bashkirtseva N.Ju.

Gusev Ju.V.

Kudrjashov V.N.

Garaev L.A.

Gabidullin R.I.

Garipov R.N.

Rakhmatullin R.R.

Khusnullin M.G.

Dates

2004-09-20—Published

2003-04-16—Filed

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