Tool for blocking axial flow in gravel-packed well annulus

E - Fixed Constructions – 21 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

E21B 43/08 (2006.01) E21B 33/126 (2006.01) E21B 43/04 (2006.01)

Patent

CA 2231399

A well screen (15) for gravel-packing a wellbore interval (12) comprising at least two joints (16a, 16b) connected by a well tool (20). Each joint is comprised of a length of screen section (17) which has at least one, axially extending shunt conduit (18) thereon for carrying gravel slurry to different levels within the interval. The well tool has at least one by-pass tube (25) therein which is adapted to align with and fluidly-connect the shunt conduits (18) on respective joints whereby gravel can flow from one of the shunt conduits (18), through the by-pass tube (25), and into and out of the other shunt conduit. A packing means (26a, 26b) is mounted on the tool for preventing any substantial annular, axial flow past the tool when the tool is an operable position within the wellbore.

L'invention porte sur un filtre de puits (15) comportant au moins deux joints (16a, 16b) reliés par un outil de forage (20) et servant à introduire un filtre en gravier dans une longueur (12) d'un puits. Chacun des joints comporte une longueur de filtre (17) présentant au moins un conduit de dérivation (18) axiale servant à amener une boue de gravillons à différents niveaux de la longueur du puits. L'outil de forage comporte au moins un tube de dérivation (25) s'alignant sur les conduits de dérivations (18) des joints respectifs et les mettant en communication fluidique pour permettre l'écoulement du gravier par un conduit de dérivation puis par le tube de dérivation (25), et enfin dans l'autre conduit de dérivation pour en sortir. Un moyen (26a, 26b) d'introduction de filtre en gravier est placé sur l'outil pour empêcher tout flux annulaire et axial important de se déplacer au-delà de l'outil lorsque ce dernier est en position de fonctionnement dans le puits.

LandOfFree

Say what you really think

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

Rating

Tool for blocking axial flow in gravel-packed well annulus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tool for blocking axial flow in gravel-packed well annulus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tool for blocking axial flow in gravel-packed well annulus will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2053461

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