Coupling piece for use at simultaneous earth and/or rock...

E - Fixed Constructions – 21 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

E21B 6/00 (2006.01) E21B 4/20 (2006.01) E21B 17/03 (2006.01) E21B 19/086 (2006.01) E21B 21/02 (2006.01) E21B 44/00 (2006.01)

Patent

CA 2266494

The coupling piece comprises a first connection (2) for connection of an upper rotary percussion device (3) and a second connection (4) for connection of a drill tube string (5) provided with an annular drill bit (23). The coupling piece comprises a first chamber (11) and a second chamber (12) separated by a piston (10). The pressure in the first chamber (11) is used to supply a lower percussion device (8) connected to a third connection (6) associated with the coupling piece with driving medium and for feeding the lower percussion device (8) toward a ground (15). The pressure in the second chamber (12) is used to decrease the force between the lower percussion device (8) and the ground (15) when further drill string elements are added to the drill string (7) of which the lower percussion device (8) forms a part.

Cette pièce d'accouplement, utile dans le forage simultané terre et/ou roche effectué au moyen d'un dispositif de percussion rotatif supérieur et d'un dispositif de percussion rotatif inférieur, comprend un premier raccord (2) destiné à relier un dispositif de percussion rotatif supérieur (3), ainsi qu'un second raccord (4) destiné à relier un train de tiges de forage (5) pourvu d'un trépan annulaire (23). La pièce d'accouplement comprend une première (11) et une seconde (12) chambre, séparées par un piston (10). On utilise la pression de la première chambre (11) pour alimenter en milieu d'entraînement un dispositif de percussion inférieur (8), relié à un troisième raccord (6) associé à la pièce d'accouplement, et pour pousser le dispositif de percussion inférieur (8) vers le sol (15). On utilise la pression de la seconde chambre (12) pour diminuer la force entre le dispositif de percussion inférieur (8) et le sol (15) lorsque l'on ajoute des éléments supplémentaires de tiges au train de tiges (7) dont le dispositif de percussion inférieur (8) fait partie.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Coupling piece for use at simultaneous earth and/or rock... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coupling piece for use at simultaneous earth and/or rock..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coupling piece for use at simultaneous earth and/or rock... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1497169

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.