Columbia Slotted Pipe

- Minimumgauge (10)

- Contains a conicalpart to allow sand escape (least clogging index)

- Contains a parallel part to control sand grain size;

Advantages of the Semi-Conic Profile (Columbia)

- Torsion resistance: Usually 80% of the tubes natural resistance.

- Collapse resistance: Usually 75% of the tubes natural resistance.

- Slot's Width: from 0,20 to 6,35 mm.

- Slot's Length: from 38 to 100 mm.

- Material: All Seamless material.

- Open Area:1,5 to 6%

Technical Specification:

Diversive Liner is another application of the laser process. It consists in slots of varying length along the tube axis with the aim of keeping uniformity either in the steam injection or oil production, along a line of tubes in horizontal wells.

There exist several kinds of Slotted liner. Recent developments make use a laser bean to cut the slots in order to avoid changes in tubes material characteristics and,in order to maintain uniformity among the slots.

Slotted Liner is one of the oldest methods for controlling sand. It actually is composed of series of slots on the tube wall oriented along the tubes axis. The slots width is designed according to the sand control desired.

Columbia Slotted Liner Process are made thru a modern process of laser cutting, thus ensuring the quality of tears