Multi-layer screen and downhole completion method

An expandable filter assembly for downhole use, comprising:

• a base pipe having an inside surface, a longitudinal axis, and a plurality of openings;
• at least one filtration layer mounted over said base pipe,
• said inside surface of said base pipe is coated to reduce the force needed for subsequent expansion.

An expandable filter assembly for downhole use, comprising:

• a base pipe having an inside surface, a longitudinal axis, and a plurality of openings;
• at least one filtration layer mounted over said base pipe,
• said at least one filtration layer comprises a weave having weft and warp wires and wherein one of said weft and warp wires is disposed at an angle of about 10-80 degrees with respect to the longitudinal axis of said base pipe.