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2 318 996

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IPC

E21B43/22(2006-01-01)

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Application

2006147405/03, 2006-12-25

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Start date

2006-12-25

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Actual filing date

2006-12-25

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Published

2008-03-10

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Inventor

Agliullin Ruslan RashitovichBashkirtsev Anton AlekseevichBashkirtseva Natal'Ja Jur'EvnaMannapov Gazinur MudarisovichRakhmatullin Rafaehl' RafkhatovichKhazimuratov Rafail KhanifovichKhalimov Rustam Khamisovich

(73)

Holder

Zakrytoe Aktsionernoe Obshchestvo

OIL PRODUCTION STIMULATION METHOD Russian patent published in 2008 - IPC E21B43/22 

Abstract RU 2318996 C1

FIELD: oil production, particularly use of chemicals or bacterial activity for oil production stimulation.

SUBSTANCE: method involves injecting water-repellent agent in organic solvent in well; injecting displacement water, namely dry oil; performing technological time-delay; producing oil from producing well. Before water-repellent agent injection in well waste compressor oil is additionally injected in well. Said time-delay is carried out for at least 96 hours. The water-repellent agent is ethylene-vinyl-acetate copolymer added to solvent in amount of 0.05-2.0%. Ratio between ethylene-vinyl-acetate copolymer and waste compressor oil is 1:(1-5). Said oil is additionally injected after said solution injection with ratio of 1:(1-5):1 correspondingly.

EFFECT: increased efficiency of reservoir treatment.

2 cl, 1 tbl

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RU 2 318 996 C1

Authors

Agliullin Ruslan Rashitovich

Bashkirtsev Anton Alekseevich

Bashkirtseva Natal'Ja Jur'Evna

Mannapov Gazinur Mudarisovich

Rakhmatullin Rafaehl' Rafkhatovich

Khazimuratov Rafail Khanifovich

Khalimov Rustam Khamisovich

Dates

2008-03-10—Published

2006-12-25—Filed

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