Method for calculating the ratio of relative permeabilities...

Measuring and testing – Borehole or drilling – Formation logging

Reexamination Certificate

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Reexamination Certificate

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07849736

ABSTRACT:
A method and a tool that implements a method which includes measuring the viscosity and flow rates of formation fluids and obtaining the ratio of relative permeabilities of the formation fluids and wettability of the formation using the same.

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H. Elshahawi, K. Fathy, S. Hiekal, “Capillary Pressure and Rock Wettability Effects on Wireline Formation TesterMeasurements”, SPE 56712, pp. 1-16.
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W. Looyestijn, J. Hofman, “Wettability Index Determination by Nuclear Magnetic Resonance”, SPE 93624, pp. 1-8.

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