FIELD: mining.
SUBSTANCE: group of inventions relates to systems and methods for performing underground work. System for underground operations includes flexible tubing having first and second sections, swivel connection established at junction of first and second sections, and a locking device operable to rotational engagement with swivel connection in response to passage of locking device through first and second section while moving in wellbore.
EFFECT: technical result consists in enabling rotation of column divided into sections of flexible tubing within wellbore.
19 cl, 3 dwg
| Title | Year | Author | Number |
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|
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|
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|
RU2691184C2 |
