n downhole. These
timing errors contaminate the measured travel times.
TRACER SURVEYS IN PRODUCTION WELLS
Fewer applications of tracer logging occur in
production wells. In a true single-phase flow, a slug is tracked for
a while and then disappears uphole. Multiple slugs are used, one for
each producing interval under investigation. Usually, a well is
logged from a bottom, no-flow interval up to an interval of total
Because of the unusual circulation patterns that can occur in
multiphase flows, tracer results can be misleading