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2 595 019

(13)

(51)

IPC

C09K8/42(2006-01-01)

E21B43/12(2006-01-01)

(21) (22)

Application

2015117884/03, 2015-05-12

(24)

Start date

2015-05-12

(22)

Actual filing date

2015-05-12

(45)

Published

2016-08-20

(72)

Inventor

Chernyshov Sergej EvgenevichKunitskikh Artem AleksandrovichKrysin Nikolaj IvanovichDvoretskas Ruslan Valdasovich

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Natsionalnyj Issledovatelskij Politekhnicheskij Universitet"

PROCESS FLUID FOR WELL KILLING BASED ON ALCOHOLS Russian patent published in 2016 - IPC C09K8/42 E21B43/12

Abstract RU 2595019 C1

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil and gas industry and can be used during killing of oil-producing wells before overhaul, development, perforation. Process fluid for well killing based on alcohols containing oxal T-92 floatation agent, according to the invention additionally contains polyfluorinated trihydrooktafluoroamyl alcohol-telomere in the following proportions, wt%: polyfluorinated trihydrooktafluoroamyl alcohol-telomere 2-75, oxal T-92 floatation agent 25-98.

EFFECT: wider range of the fluid density change, preservation of filtration-capacitance parameters of productive reservoirs due to inhibition of clay minerals hydration.

1 cl, 2 tbl, 1 ex

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RU 2 595 019 C1

Authors

Chernyshov Sergej Evgenevich

Kunitskikh Artem Aleksandrovich

Krysin Nikolaj Ivanovich

Dvoretskas Ruslan Valdasovich

Dates

2016-08-20—Published

2015-05-12—Filed