Patent ID: 9581720
Date: 2017-02-28
CPC Classifications: G01V,Y02A

Claim:
1. A method of evaluating an earth formation, the method comprising: making measurements if complex permittivity using an electromagnetic tool in a borehole penetrating the earth formation to transmit signals into the formation at a plurality of frequencies; using at least one processor to estimate at least one property of the earth formation using a real part with respect to an imaginary part of a permittivity of the earth formation at the plurality of frequencies, where the real parts and the imaginary parts are based on the measurements, and wherein the at least one property includes at least one of: i) oil viscosity and ii) surface tension of a water-oil system; and using the at least one processor to perform at least one of: i) storing the at least one property in a computer memory; ii)transmitting the at least one property uphole; or iii)displaying of the at least one property to an operating engineer.