The present invention provides methods and compressible foamed sealing compositions for sealing expandable pipe in well bores. The lead enhancement module may return a contactability score for each lead record, indicating a likelihood that the individual identified in the lead may be contacted using the contact information provided in the lead record andor additional contract information located by the lead enhancement module. Each lip is received within a corresponding channel formed on the other of the base and the outer cover. The allocation unit substantially comprises mirror image pairs of subcarriers.