UECS is a screener to limit sedimentation processes in cement slurry filling casing outer annulus in a well
behind the casing diameter 245, 324 and 426 mm.
UECS device includes a spring petal shell interacting with a screening element which is an easily deformable rubber petal collar. Assembly fixture is implemented as bolts with sharpened end which penetrate
the casing pipe surface when screwed in.
When cementing is finished the petal collar and the screener shell are in close contact with each other
and with well walls (the noncircular one) and form a base for sedimentation of solids from cement slurry.
Condensed cement connecting strip is formed by itself on it thus along with the screener preventing
lowering of the cement slurry column in the hole.