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 Alviko

link 3.08.2020 9:45 
Subject: Anti-hydraulic lock seal bore
Добрый день! 

Пожалуйста, помогите правильно сформулировать название данного инструмента -  anti hydraulic lock seal bore

Встречается в патенте 

The lower end of the washpipe  may comprise a plug  having one or more seals  mounted thereon. In use, the washpipe  may be coupled to a lock  provided in the completion string  via the plug, wherein the washpipe  seals against the lock  via the plug seal or seals  to prevent backflow of fluid up the internal bore. In the embodiment shown, the distal end of the washpipe  may comprise a 3.25 inch (82.55 mm) outer diameter  seal stack and the lock  may comprise a 4½ inch (114 mm) outer diameter×3¼ inch (82.55 mm) inner diameter anti hydraulic lock seal bore.

Даже нашлась спецификация  (по всей видимости)  на него  -  https://wenku.baidu.com/view/ea90e5877c1cfad6195fa7ef.html

Спасибо!

 

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