Perforated rong> is a sand control screen widely used in the horizontal completion wells of SAGD and other thermal heavy oil recovery. It is made of stainless steel or galvanized steel pipes slotted with single, double taggered patterns. This metal tubing has exnt properties in withstanding installation loads and operation loads make it the premier choice for SAGD.
The perforating of e done with laser cutting process without operation. This process can effectively avoid undesirable factors which will cause the deformation of the base pipe. Laser cutting process uses windows interface for easy operation and accurate calculation.
Perforated metry consists of stamped length, stamped width, ity and perforating 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.
Three stamped terns -straight, staggered and gang - are supplied. Each has its own characteristics.
Perforated metryStamped es 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.
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