1.The minimum slot width that can be achieved is about 0.012 in. Slots that cut less than 0.020 in.
in width involve high costs because of excessive machine downtime to replace broken saw
blades that overheat, warp, and break.
2.The single-slot staggered, longitudinal pattern is generally preferred because the strength
of the unslotted pipe is preserved.
3.The staggered pattern also gives a more uniform distribution of slots over the surface area
of the pipe.
4.The single-slot staggered pattern is slotted with an even number of rows around the pipe
with a typical 6-in. longitudinal spacing of slot rows.
2.The keystone slot is narrower on the outside surface of the pipe than on the inside.
3.Slots formed in this way have an inverted “V” cross-sectional area and are less prone
to plugging because any particle passing through the slot at the outside diameter (OD)
of the pipe will continue to flow through, rather than lodging within the slot.
4.While the slotted liners are usually less costly than wire-wrapped screens, they have
smaller inflow areas and experience higher pressure drops during production.
5.Slotted liners also plug more readily than screens; they are used where well productivity
is small and economics cannot support the use of screens.
1.The slotted liner is mainly used to the water and oil reservation layer without much sand.
2.Its function is to prevent the rock bits dropping into the well bore.
3.The working principle is allowing the certain size sand coming through the surface
with crude oil but keeping the bigger size sand being stopper outside to form sand
bridge,and thereby achieving the anti-sand purpose.
4.This type of product is commonly used to sand rock and carbonate reservoir,and
especially useable for horizontal wells.
If interested,pls contact:
Cynthia
Skype:aldfilters
Email:sales03@xxldlq.com
Mob:86-15637366455(whatsapp,viber,wechat)
