|
 This
device consists of flexible steel spring
bow welded to slip-on collars. Bows
are hardened and tempered for maximum
strength and uniformity. It is run on
casing or liners above weak or porous
formations to provide protection from
hydrostatic pressure generated by the
cement column. Its overlapping metal
fins provide flexibility and fluid passages
while maintaining optimum support characteristics.
Available in the size range 4 ½ " to
20 " |
