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2 178 068

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IPC

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Application

2000123467/03, 2000-09-13

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Start date

2000-09-13

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Actual filing date

2000-09-13

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Published

2002-01-10

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Inventor

Takhautdinov Sh.F.Muslimov R.Kh.Khisamov R.S.Shakirov A.N.Zheglov M.A.Kozin V.G.Gusev Ju.V.Bashkirtseva N.Ju.Shaposhnikov D.A.Rakhmatullin R.R.

(73)

Holder

Zakrytoe Aktsionernoe Obshchestvo

COMPOSITION FOR INCREASE OF FORMATION OIL RECOVERY Russian patent published in 2002 - IPC

Abstract RU 2178068 C1

FIELD: oil producing industry, particularly, production of surfactant system for increase of formation oil recovery; applicable in intensification of oil recovery by treatment of bottom-hole zones. SUBSTANCE: composition for increase of oil recovery from formation includes thickening agent and detergent used in the form of oxyethylated carbonic acids with general formula C_nH_2n+1COO(C₂H₄O)_mH, where n= 15; m= 2-11 with molecular weight of 344-810, and additional phosphate or hydrophosphate of alkaline metals and water at the following ratio of components, mas. %: oxyethylated carbonic acids, 0.1-5.0; phosphate or hydrophosphate of alkaline metals, 1.0-7.2; water, the balance. EFFECT: provided ecological, highly efficient relatively low cost composition for intensification of oil displacement and increased coefficient of oil recovery from formation. 2 tbl, 3 ex

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RU 2 178 068 C1

Authors

Takhautdinov Sh.F.

Muslimov R.Kh.

Khisamov R.S.

Shakirov A.N.

Zheglov M.A.

Kozin V.G.

Gusev Ju.V.

Bashkirtseva N.Ju.

Shaposhnikov D.A.

Rakhmatullin R.R.

Dates

2002-01-10—Published

2000-09-13—Filed