Finding oil viscosity and surface tension by means of dielectric spectroscopy

摘要

The present disclosure relates to methods and apparatuses for evaluating an earth formation using complex dielectric permittivity. The method may include estimating at least one property of the earth formation using a real part and an imaginary part of complex permittivity at a plurality of frequencies. The at least one property may include one or more of: oil viscosity and surface tension of a water-oil system. The method may include performing dielectric permittivity estimates using an electromagnetic tool in a borehole. The apparatus may include the electromagnetic tool and at least one processor configured to store information obtained by the electromagnetic tool in a memory. The at least one processor may also be configured to estimate at least one property of the earth formation.