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2 527 443

(13)

(51)

IPC

E21B33/138(2006-01-01)

C09K8/50(2006-01-01)

(21) (22)

Application

2013115335/03, 2013-04-05

(24)

Start date

2013-04-05

(22)

Actual filing date

2013-04-05

(45)

Published

2014-08-27

(72)

Inventor

Antoniadi Dmitrij GeorgievichZakharchenko Sergej IvanovichKlimov Vjacheslav Vasil'EvichUsov Sergej Vasil'EvichFedorov Jurij KonstantinovichDolgov Sergej ViktorovichStroganov Mikhail Aleksandrovich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Tekhnologicheskij Universitet" Vpo

COMPOUND FOR REMOVAL OF FLUIDS CROSSFLOW BEHIND PRODUCTION STRINGS IN OIL AND GAS WELLS Russian patent published in 2014 - IPC E21B33/138 C09K8/50

Abstract RU 2527443 C1

FIELD: oil and gas industry.

SUBSTANCE: compound contains 20-25 wt % of bentonite clay, 55-60 wt % of hydrocarbon fraction, 5-10 wt % of sodium carbonate and 5-15 wt % of Portland cement.

EFFECT: improving efficiency in removal of fluids crossflow behind production strings in oil and gas wells and increasing duration of their life between overhauls.

2 ex

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RU 2 527 443 C1

Authors

Antoniadi Dmitrij Georgievich

Zakharchenko Sergej Ivanovich

Klimov Vjacheslav Vasil'Evich

Usov Sergej Vasil'Evich

Fedorov Jurij Konstantinovich

Dolgov Sergej Viktorovich

Stroganov Mikhail Aleksandrovich

Dates

2014-08-27—Published

2013-04-05—Filed