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  3. Mining & Minerals / Gems

pre-collared

French translation: préforage

08:07 Feb 14, 2014
English to French translations [PRO]
Tech/Engineering - Mining & Minerals / Gems
English term or phrase: pre-collared
Mining company in Congo.
The dewatering well was ***pre-collared*** to 33m and the surface casing installed.
Solen Fillatre
France
Local time: 01:49
French translation:préforage
Explanation:
s'il s'agit de ce qui suit:

- le préforage, généralement réalisé par un diamètre supérieur au diamètre du forage du puit principal. Celui-ci permet de franchir les sols superficiels et instables afin de consolider la tenue des terrains rencontrés pour pouvoir réaliser le puit principal. Sa profondeur est variable et de 10ml minimum. Ce préforage est tubé par un tuyau PVC de diamètre légèrement inférieur.
Selected response from:

Lidija Lazic
Local time: 01:49
Grading comment
Thanks
4 KudoZ points were awarded for this answer



Summary of answers provided
4préforage
Lidija Lazic
Summary of reference entries provided
préforé
Didier Fourcot
pre-collared
GILLES MEUNIER

  

Answers


1 hr   confidence: Answerer confidence 4/5Answerer confidence 4/5
préforage


Explanation:
s'il s'agit de ce qui suit:

- le préforage, généralement réalisé par un diamètre supérieur au diamètre du forage du puit principal. Celui-ci permet de franchir les sols superficiels et instables afin de consolider la tenue des terrains rencontrés pour pouvoir réaliser le puit principal. Sa profondeur est variable et de 10ml minimum. Ce préforage est tubé par un tuyau PVC de diamètre légèrement inférieur.

Lidija Lazic
Local time: 01:49
Native speaker of: Native in FrenchFrench, Native in SerbianSerbian
PRO pts in category: 8
Grading comment
Thanks

Peer comments on this answer (and responses from the answerer)
neutral  Didier Fourcot: "préforé" is predrilled in Dictonnaire du forage et des puits (see reference, cannot paste it here)?
1 hr
  -> oui, vous avez raison. cela ressemble plus à un avant-trou
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Reference comments


2 hrs
Reference: préforé

Reference information:
I find a number of co-occurrences of "pre-collared" with "reverse circulation drill", perhaps this could be a clue?
http://www.bullmanminerals.com/corporate/press-releases/2014...


    Reference: http://books.google.fr/books?id=GKYA6gb5J7sC&pg=PA126&lpg=PA...
    Reference: http://books.google.fr/books?id=jxX8nFivTXgC&pg=PA153&lpg=PA...
Didier Fourcot
Native speaker of: Native in FrenchFrench
PRO pts in category: 12
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3 hrs
Reference: pre-collared

Reference information:
http://forum.wordreference.com/showthread.php?t=909725&langi...

GILLES MEUNIER
France
Native speaker of: French
PRO pts in category: 433
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