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2 453 691

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(51)

IPC

E21B43/22(2006-01-01)

E21B43/32(2006-01-01)

(21) (22)

Application

2009146592/03, 2009-12-15

(24)

Start date

2009-12-15

(22)

Actual filing date

2009-12-15

(45)

Published

2012-06-20

(72)

Inventor

Vakhitov Timur MidkhatovichLuk'Janov Jurij ViktorovichShuvalov Anatolij Vasil'EvichKamaletdinova Rezeda MinnisajrinovnaEmaletdinova Ljudmila Dmitrievna

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Neftjanaja Kompanija

FORMATION PERMEABILITY CONTROL METHOD Russian patent published in 2012 - IPC E21B43/22 E21B43/32

Abstract RU 2453691 C2

FIELD: oil and gas industry.

SUBSTANCE: in formation permeability control method involving subsequent pumping to the well through separating bank of fresh water or oil, liquid wastes of produced zeolites and gel formation initiator, forcing-through of pumped reagents to formation with waste water or oil, the solution of by-product of produced polyethylenepolyamines - reagent of ammonium chloride is used as gel formation initiator.

EFFECT: reducing corrosive activity of composition; increasing technological efficiency for restriction of water and gas breakthrough.

4 ex, 2 tbl, 1 dwg

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RU 2 453 691 C2

Authors

Vakhitov Timur Midkhatovich

Luk'Janov Jurij Viktorovich

Shuvalov Anatolij Vasil'Evich

Kamaletdinova Rezeda Minnisajrinovna

Emaletdinova Ljudmila Dmitrievna

Dates

2012-06-20—Published

2009-12-15—Filed