Apparatus and method for opening and closing lateral boreholes

E - Fixed Constructions – 21 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

E21B 41/00 (2006.01)

Patent

CA 2504804

The present invention relates to a downhole tool (102) for selectively opening and closing a lateral borehole extending from a primary borehole. The tool (102) comprises a body (104) incorporating a wall provided with an opening (116) extending therethrough; a deflector member (106) slidably mounted in the body (104) and having a deflecting surface (126) for deflecting, in use, downhole equipment laterally within the body (104). The deflector member (106) is slidable between an open position, in which the deflecting surface is located adjacent and facing towards said opening so that, in use, downhole equipment laterally deflected by the deflecting surface is directed through said opening, and a closed position, in which the deflecting surface is oriented relative to said opening so as to prevent downhole equipment from being laterally deflected through said opening during use. In either position, equipment may pass into the primary borehole downhole of the primary/lateral junction. The tool (102) also comprises constraining means (138, 140) for restricting movement of the whipstock relative to the body.

L'invention concerne un outil de fond (102) servant à ouvrir et à fermer un trou de forage latéral s'étendant à partir d'un trou de forage principal. Cet outil (102) comprend : un corps (104) présentant une paroi pourvue d'une ouverture (116) s'étendant à travers cette dernière; ainsi qu'un élément de déviation (106) monté de manière à coulisser dans le corps (104) et présentant une surface de déviation (126) servant à dévier latéralement, lors de son utilisation, l'équipement de fond dans le corps (104). L'élément de déviation (106) peut coulisser entre une position ouverte, dans laquelle la surface de déviation est adjacente et fait face à ladite ouverture, de sorte que, lors de l'utilisation, l'équipement de fond dévié latéralement par la surface de déviation soit dirigé à travers ladite ouverture, et une position fermée, dans laquelle la surface de déviation est orientée par rapport à ladite ouverture de façon à empêcher l'équipement de fond d'être dévié latéralement à travers ladite ouverture pendant l'utilisation. Dans n'importe quelle position, l'équipement peut pénétrer dans le trou de forage principal au fond de la jonction trou principal/trou latéral. L'outil (102) comprend également des moyens de limitation (138,140) servant à limiter le mouvement du sifflet déviateur par rapport au corps.

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 and method for opening and closing lateral boreholes 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 and method for opening and closing lateral boreholes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for opening and closing lateral boreholes will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1435286

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