| 摘要 |
An improved method and capacitance probe arrangement for determining the fluid phase fractions of fluids having differing permitivity such as those of gas, oil, and water and oil-water emulsion in a fluid stream flowing from an oil well which includes trapping the primarily liquid components in a vertically disposed chamber (34). The liquid is held therein to permit separation of the phase fractions to the extent possible within a reasonable time. Conductive tube (44), with a non-conductive outer coating, is disposed centrally within the liquid and gradually filled with conductive fluid while a number of sequential measurements are taken of the capacitance at a plurality of discrete vertically-spaced locations (68) within the fluid phase mixture of the chamber (34). These capacitance measurements relate directely to the varying permitivity of the phase fractions of the various liquids contained therein which may be gas, oil, and water and an oil-water emulsion. The measurements are made by capacitance measuring circuitry, to provide precise information on such phase fractions and emulsion interfaces. A number of distinct embodiments of the novel probe are disclosed.
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