Shroud for a well screen

Details Shroud for a well screen Shroud for a well screen

E - Fixed Constructions

21

B

E21B 43/08 (2006.01)

Patent

CA 2227458

A shroud for covering a well screen comprising a tubular member having circular holes in its wall through which well fluid can flow into the annulus between the shroud and the screen, a plurality of arcuate straps located in the annulus with each strap having a width less than the diameter of the holes with the ends of each strap attached to the shroud on opposite sides of a hole in the shround and extending into the annulus between the shroud and the screen to cause the well fluid flowing through the holes to swivel as it passes through the holes and flows laterally from each side of the straps into the annulus between the shroud and the screen.

Blindage pour recouvrir un filtre de puits constitué d'un élément tubulaire ayant des trous circulaires dans sa paroi par lesquels le fluide du puits peut s'écouler dans l'espace annulaire entre le blindage et le filtre, plusieurs courroies arquées placées dans l'espace annulaire, chacune ayant une largeur inférieure au diamètre des trous, leurs bouts étant attachés au blindage sur les côtés opposés d'un trou dans le blindage et s'étendant dans l'espace annulaire entre le blindage et le filtre pour amener le fluide du puits s'écoulant par les trous à tourner quand il traverse les trous et à s'écouler latéralement depuis chaque côté des courroies dans l'espace annulaire entre le blindage et le filtre.

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