Slotted Liner
Slotted liner is a robust and effective device for sand control in the horizontal completion wells of SAGD and other thermal heavy oil recovery. Its excellent properties in withstanding installation loads and operation loads make it the premier choice for SAGD.
Slotted liner geometry consists of slot length, slot width, slot density and slot distribution. All these parameters can be bespoken to achieve the required open area. For example, multiple staggered pattern or gang pattern significantly increases the open area compared with single cut pattern.
Staggered slotted liner fabricated by advanced laser cutting process
Staggered pattern
Slotted geometry
Slotted shapes are classified into two types: straight cut slot and keystone slot. Compared with straight slot, keystone slot has higher resistance against plugging for its inter size is larger than the surface size. Once the sand entering the keystone slot, the possibility of clogging will drop sharply.
Moderate cost
Ease of installation
Sufficient operation load
Non-plugging
Laser cutting process
3.5" Liner 0.015 228 352 0.018 188 296 0.020 172 264 0.025 136 212 0.028 124 188 0.038 68 104 0.058 44 68 0.125 24 32 0.250 12 16
Slot Width (mm)
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