Apparatus for delivering a flowable substance to a remote...

E - Fixed Constructions – 21 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

E21B 23/08 (2006.01) E21B 17/10 (2006.01) E21B 21/10 (2006.01) E21B 23/10 (2006.01) E21B 27/02 (2006.01)

Patent

CA 2390523

The apparatus (10) for delivering grease through the individual string (12) includes a tubular member (14) for holding a supply of grease, a piston (16) sealing slidable through the tubular member (14) and a first valve (18) coupled to a downstream end (20) of the member (14). Valve (18) has a body (22) provided with orifices (24) and a collar (26) slidably mounted over an end of the body (22) and biased to a sealing position in which it seals the orifices (24). Piston (16) is initially located above an upstream end (28) of the tubular member (14). Apparatus (10) is slid through the drill string (12) until collar (26) abuts a stub, typically a core bit retained at the end of the string. Fluid pressure is then applied to apparatus (10) by pumping water or mud down the drill pipe (12). This forces collar (26) to be displaced in covering the orifices (24). This allows the fluid pressure to push piston (16) through the tubular member (14) to force grease through the orifices (24) and out the downstream end of stream (12).

Dispositif (10) servant à appliquer de la graisse par l'intermédiaire du train de tiges individuel (12) et comprenant un élément tubulaire (14) contenant une charge de graisse, un piston (16) coulissant étanche à travers l'élément tubulaire (14) et un premier clapet (18) accouplé à une extrémité aval (20) de l'élément (14). Ce clapet (18) possède un corps (22) pourvu d'orifices (24) et un collier (26) monté coulissant au-dessus d'une extrémité du corps (22) et sollicité vers une position d'étanchéité dans laquelle il obture hermétiquement les orifices (24). Le piston (16) est initialement placé au-dessus d'une extrémité amont (28) de l'élément tubulaire (14). On glisse le dispositif (10) à travers le train de tiges (12) jusqu'à ce que le collier vienne en butée contre un obstacle, à savoir une couronne de sondage retenue à l'extrémité du train de tiges. On applique ensuite une pression hydraulique à l'appareil (10) par pompage d'eau ou de boue par le conduit de forage (12). Ceci provoque le déplacement du collier (26) afin de recouvrir les orifices (24). Ceci permet à la pression hydraulique de pousser le piston (16) à travers l'élément tubulaire (14), de manière à forcer la graisse à travers les orifices (24) et hors de l'extrémité aval du train de tiges (12).

LandOfFree

Say what you really think

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

Rating

Apparatus for delivering a flowable substance to a remote... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for delivering a flowable substance to a remote..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for delivering a flowable substance to a remote... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1919579

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