1. n. [Formation Evaluation]
Display ranges chosen for the density and neutron porosity logs such that the two curves will overlay at all porosity values providing the matrix is pure calcite and the pores are filled with fresh water. The most common overlay spans two tracks, with the density reading from 1.95 to 2.95 g/cm3, and the neutron in limestone porosity units from 0.45 to −0.15 vol/vol.
See related terms: fresh water, limestone, limestone porosity unit, neutron porosity, sandstone porosity unit, sandstone-compatible scale, track
