A screen that conforms to the borehole shape after expansion is disclosed. The screen comprises a compliant outer layer that takes the borehole shape on expansion. The outer layer is formed having holes to permit production flow. The material that is selected preferably swells with prolonged contact...http://www.google.com.au/patents/US7644773?utm_source=gb-gplus-sharePatent US7644773 - Self-conforming screen
