Oil sand control tube
It is made from inside to outside by The patented filter set, multilayer sand defending filtering case and protection case. Adopt Stainless steel material, multilayer sand defending filtering case has four layers, From inside to outside is divided into: guide cylinder(0.5 mm diversion for precision CNC punching board), precise micro-porous filter screen 20 mesh *110mesh, microporous filter screen 40mesh, precise micro-porous filter screen 20 mesh * 110 mesh, punching outside protection case is perforated by CNC precise punching slot. punched slot aperture width can be within the scope of 0.5 ~ 100 mm, sand control filtering case,stainless steel punching slot outer protection case and the casing pipe can be a whole by welding. High permeability, and resistance to deformation and antiflow, make stratigraphic characteristics of corrosive, make sand blocked besides the slot, in order to strengthen the protection filter on the protection of filter. Fluid through the sieve tube rushed into the gap to control purpose.
Properties:
1, multilayer sand control filtering case has high efficiency sand filtration control performance and can better stop sand underground strata.
2 filter hole is uniform, prevent the permeability and high performance.
3, large filtering area, small flow resistance, efficiency of producing oil is high
4 stainless steel material is qualitative excellent corrosion resistance, resistance to corrosion of acid, alkali and salt, can adapt to the special requirements of oil Wells, aperture for corrosion and gradually becomes larger.
5 and multi-layer structure welding to be a whole, can make the filter hole, resistance to deformation stability.
Also outer protection cover can be spiral welded
Material for stainless steel 304, 316316L multilayer control and protection of filter can be made according to the user's underground needs.