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1. (WO2018222071) DEVICE FOR DIVIDING A BOREHOLE INTO SECTIONS THAT ARE ISOLATED FROM ONE ANOTHER

Pub. No.:    WO/2018/222071    International Application No.:    PCT/RU2017/000420
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Fri Jun 16 01:59:59 CEST 2017
IPC: E21B 33/12
Applicants: KIRYACHEK, Vladimir Georgievich
КИРЯЧЕК, Владимир Георгиевич
KOLOMIYCHENKO, Oleg Vasilievich
КОЛОМИЙЧЕНКО, Олег Васильевич
KLINKOV, Nikolay Nikolaevich
КЛИНКОВ, Николай Николаевич
KORNELIS, Koole
КОРНЕЛИС, Кооле
NICHIPORENKO, Vyacheslav Mikhaylovich
НИЧИПОРЕНКО, Вячеслав Михайлович
CHERNOV, Anatoliy Aleksandrovich
ЧЕРНОВ, Анатолий Александрович
GUYBER, Otto
ГУЙБЕР, Отто
PARKHOMENKO, Aleksandr
ПАРХОМЕНКО, Александр
Inventors: KIRYACHEK, Vladimir Georgievich
КИРЯЧЕК, Владимир Георгиевич
KOLOMIYCHENKO, Oleg Vasilievich
КОЛОМИЙЧЕНКО, Олег Васильевич
KLINKOV, Nikolay Nikolaevich
КЛИНКОВ, Николай Николаевич
KORNELIS, Koole
КОРНЕЛИС, Кооле
NICHIPORENKO, Vyacheslav Mikhaylovich
НИЧИПОРЕНКО, Вячеслав Михайлович
CHERNOV, Anatoliy Aleksandrovich
ЧЕРНОВ, Анатолий Александрович
GUYBER, Otto
ГУЙБЕР, Отто
PARKHOMENKO, Aleksandr
ПАРХОМЕНКО, Александр
Title: DEVICE FOR DIVIDING A BOREHOLE INTO SECTIONS THAT ARE ISOLATED FROM ONE ANOTHER
Abstract:
The invention relates to the field of oil and gas extraction. A device for dividing a borehole into sections that are isolated from one another, comprising a hollow housing (7) mountable on a production tubing (1), an axially displaceable seal (6) disposed on the housing (7), a seat (4) fastened to the housing (7) above the seal (6), an axially displaceable pusher (9) mounted on the housing (7) below the seal (6), and a nozzle (15) fastened to the lower part of the housing (7) and communicated with the cavity thereof, wherein the seal (6) is basalt-fiber-based, with said fiber having a diameter from 0.5 to 3.5 μm and being saturated with a filler in the form of metal microparticles or metal-oxide nanoparticles, and the seal (6) is equipped with spacers (19) made of a fusible metal or alloy.