discovery of oil viscosity and surface tension by dielectric spectroscopy

摘要

patent specification: "discovery of oil viscosity and surface tension by dielectric spectroscopy". The present disclosure relates to methods and apparatus for assessing a terrestrial formation using complex dielectric permittivity. The method may include estimating at least one property of the terrestrial formation using a real part and an imaginary part of the complex permittivity on a plurality of frequencies. At least one property may include one or more of: oil viscosity and surface tension of a water and oil system. The method may include making dielectric permittivity estimates using an electromagnetic tool in a well. The apparatus may include the electromagnetic tool and at least one processor configured to store the 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 terrestrial formation.