Method of evalulating gravel pack slurry using thermal neutrons.

摘要

A gravel pack slurry is evaluated in a channel (44) using a fast neutron source (46) and a thermal neutron detector (48), mounted outside of the channel, to produce responses from which gravel settling rate, packing efficiency, gravel concentration, porosity and density can be determined. The method can be applied to either static or dynamic slurries in either a laboratory test environment or an actual well environment.