The present invention relates methods and apparatus for lining a wellbore.
A concrete element (1) for cladding a tunnel, comprising a convex outer surface (17) and an opposite inner surface (18).
The invention concerns a method for tubing a borehole which consists in successively lowering an unlimited plurality of tubes having a common diameter, the next one through the preceding one, to be installed one beneath the other and sealingly connected.
The present invention relates methods and apparatus for lining a wellbore.
A concrete element (1) for cladding a tunnel, comprising a convex outer surface (17) and an opposite inner surface (18).
The invention concerns a method for tubing a borehole which consists in successively lowering an unlimited plurality of tubes having a common diameter, the next one through the preceding one, to be installed one beneath the other and sealingly connected.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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