E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 3/025 (2006.01) E21B 4/20 (2006.01) E21B 7/06 (2006.01) E21B 7/24 (2006.01) E21B 19/16 (2006.01) E21B 21/01 (2006.01) E21B 23/00 (2006.01)
Patent
CA 2385426
A method for displacing a tube (1) in a bore- hole (2) in the ground (3) is disclosed. The tube is simulta- neously displaced along and about its axis, such that it is axi- ally introduced into or retracted from the borehole. According to the invention, displacing the composed tube about its axis comprises an oscillating movement. The invention further re- lates to a device for displacing a tube in a borehole. Image
La présente invention concerne un procédé permettant de déplacer un tube (1) dans un trou de forage (2) dans le sol (3). Le tube est déplacé à la fois le long et autour de son axe, de sorte qu'il est alors introduit à l'intérieur ou extrait du trou de forage de manière axiale. Selon l'invention, le déplacement sur son axe du tube composé fait intervenir un mouvement d'oscillation. Cette invention concerne également un dispositif servant au déplacement d'un tube dans un trou de forage.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Shell Internationale Research Maatschappij B.v.
Well Engineering Partners B.v.
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