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2 477 787

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(51)

IPC

E21B43/27(2006-01-01)

E21B43/22(2006-01-01)

(21) (22)

Application

2011138399/03, 2011-09-19

(24)

Start date

2011-09-19

(22)

Actual filing date

2011-09-19

(45)

Published

2013-03-20

(72)

Inventor

Panikarovsky Evgeny ValentinovichKustyshev Denis AleksandrovichPanikarovsky Valentin VasilievichKustyshev Aleksandr VasilievichOgibenin Valery VladimirovichSchupletsov Vladimir ArkadievichPanikarovsky Vasily ValentinovichSagidullin Maksim Aleksandrovich

(73)

Holder

Federal State Government-Financed Educational High Professional Institution State Oil And Gas University"

METHOD FOR BOTTOM-HOLE ZONE TREATMENT Russian patent published in 2013 - IPC E21B43/27 E21B43/22

Abstract RU 2477787 C1

FIELD: oil and gas industry.

SUBSTANCE: method for formation bottom-hole area treatment includes mounting of oil-well tubing in the well below perforation holes, determination of technical condition of production string and character of production formation saturation in perforation zone on the base of geological-geophysical researches data, pumping and squeezing down to the formation water solution of alkali metal supersalt with holding for reaction for 10-12 h, extraction of reaction products from bottom-hole area by well blowing by inert gas or gas from well-donor through casing annulus, pumping and squeezing down to the formation hydrogen chloride, holding for reaction for 6-8 h, well development by gas from well-donor or inert gas.

EFFECT: increase of efficiency of formation bottom-hole area treatment at stimulation of hydrocarbons influx to the well.

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RU 2 477 787 C1

Authors

Panikarovsky Evgeny Valentinovich

Kustyshev Denis Aleksandrovich

Panikarovsky Valentin Vasilievich

Kustyshev Aleksandr Vasilievich

Ogibenin Valery Vladimirovich

Schupletsov Vladimir Arkadievich

Panikarovsky Vasily Valentinovich

Sagidullin Maksim Aleksandrovich

Dates

2013-03-20—Published

2011-09-19—Filed