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2 471 978

(13)

(51)

IPC

E21B43/27(2006-01-01)

E21B43/22(2006-01-01)

(21) (22)

Application

2011128693/03, 2011-07-11

(24)

Start date

2011-07-11

(22)

Actual filing date

2011-07-11

(45)

Published

2013-01-10

(72)

Inventor

Panikarovsky Valentin VasilievichPanikarovsky Evgeny ValentinovichSchupletsov Vladimir ArkadievichPanikarovsky Vasily ValentinovichSagidullun Maxim Aleksandrovich

(73)

Holder

Tyumen State Oil And Gas University

TREATMENT METHOD OF BOTTOM-HOLE ZONE OF HORIZONTAL OR INCLINED WELL Russian patent published in 2013 - IPC E21B43/27 E21B43/22

Abstract RU 2471978 C1

FIELD: oil and gas industry.

SUBSTANCE: treatment method of bottom-hole zone of horizontal or inclined well involves well treatment with the liquid providing the absence of absorption; viscous oil or fuel oil is used as the above liquid; then, the well is flushed with gas condensate; solution of acid is pumped to productive formation; technological exposure is performed for reaction of the acid solution; hydrocarbon solvent is pumped to perform the well flushing from residues of viscous oil or fuel oil and reaction products; well is developed by means of inert gas or gas from donor well.

EFFECT: increasing treatment efficiency of bottom-hole zone of formation of horizontal and inclined wells at intensification of hydrocarbon inflow.

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RU 2 471 978 C1

Authors

Panikarovsky Valentin Vasilievich

Panikarovsky Evgeny Valentinovich

Schupletsov Vladimir Arkadievich

Panikarovsky Vasily Valentinovich

Sagidullun Maxim Aleksandrovich

Dates

2013-01-10—Published

2011-07-11—Filed