Core drill

Details Core drill Core drill

E - Fixed Constructions

21

B

E21B 25/00 (2006.01) E21B 25/06 (2006.01) E21B 25/10 (2006.01)

Patent

CA 2306810

The invention concerns a core drill, in particular for oil prospecting, comprising a core bit (2), an outer tube (3) supporting the core bit (2), and an inner tube (4) mounted in the outer tube (3) for receiving a core sample, a flowing space (5), provided between the outer (3) and the inner (4) tubes for the passage of the coring fluid means for restricting (6) the fluid passage being arranged in the flowing space (5), on the inner tube (4) front end side (7), and control means (8) being provided for adjusting, from above ground, the restriction means (6) so as to substantially increase said fluid pressure upstream of the restriction means (6).

Carottier, en particulier pour de la prospection pétrolière, comprenant une couronne (2) de carottage, un tube extérieur (3) supportant la couronne (2), et un tube intérieur (4) monté dans le tube extérieur (3) de façon à pouvoir recevoir une carotte, un espace d'écoulement (5), prévu entre les tubes extérieur (3) et intérieur (4) étant destiné au passage d'un fluide de carottage, des moyens de restriction (6) de passage du fluide étant agencés dans l'espace d'écoulement (5), du côté de l'extrémité antérieure (7) du tube intérieur (4), et des moyens de commande (8) étant prévus pour régler, depuis la surface, les moyens de restriction (6) de manière à augmenter sensiblement une pression dudit fluide en amont des moyens de restriction (6).

Affiliated with

Also associated with

Rating

Core drill does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Core drill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Core drill will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1940056