The invention involves the use of a base pipe perforated only in a
specific section under each screen section. Inflow comes through an outer
shroud that is optional and goes through the screen material and into an
annular space between the screen material and the unperforated base pipe.
After traveling longitudinally in that annular space, the flow must go
through a restriction that preferably comprises a porous media in a
passage defined outside the still unperforated base pipe. After passing
through the porous media in a particular screen section, the flow can
pass through openings in the base pipe. A surrounding ring preferably
protects the porous media during run in and expansion and can also
optionally create additional resistance to flow to work in tandem with
the porous media. Other flow restricting techniques in place of the
porous media are contemplated.