Pipe based screens are used in water wells in many parts of the world and are common in oil field work because of their strength and durability in non-vertical borehole applications. the assembly for this screen is made by perforating a base pipe and then mounting a continuous slot screen over it via one of three methods: 1) winding trapezoid-shaped wire directly onto a pipe(wrap-on pipe); 2) winding wire over longitudinal rods mounted around a pipe's circumference(pipe base); or 3) slipping a separate continuous slot well screen jacket over a pipe(screen jacket). winding wire over longitudinal rods is superior to the wrap-on pipe design because the rods hold the wire away from the pipe surface, blocking fewer of the base-pipe openings.

Construction

the inner pipe: low carbon steel or api steel or ss perforated pipe

the jacket: johnson type wedge wire screen

the end: plain end or thread end

Both ss pipe base screen

material: stainless steel

end: api stc thread

usage: geothermal well

Advantages
High flow capacity.
Perfect integral strength and strong ant-ideformation ability.
More choice .
Slot with high density, low flow resistance .

carbon steel and ss pipe base screen

Material: inner low carbon steel and out stainless steel
end: plain end
usage: deep water wells
Advantages
High flow capacity.
Perfect integral strength and strong ant-ideformation ability.
More choice .
Slot with high density, low flow resistance .

API N80 and ss pipe base screen

Material: inner api N80  and out stainless steel
end: EUE thread
usage: oil well
Advantages
High flow capacity.
Perfect integral strength and strong ant-ideformation ability.
More choice .
Slot with high density, low flow resistance .