Device for measuring oil, gas, water three phase flow containing rate
A measuring device, a technology of phase holdup, applied in the directions of measurement, wellbore/well components, construction, etc., can solve the problems of disturbing the flow field, high cost, easy to be polluted, etc., and achieves fast dynamic response speed, simple structure, reduced The effect of small errors
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[0021] refer to figure 1 , figure 2 , image 3 Make a double helix capacitive sensor. Two pieces of copper electrode plates 3 are screwed in the same direction outside a section of plexiglass circular tube 5 . Such as image 3 As shown, the expanded view of the copper electrode plate 3 is a parallelogram, and its height is πd (πd represents the circumference of the circle, and d represents the outer diameter of the plexiglass circular tube). The height of the copper electrode plate cannot be too short, otherwise it will cause the The electric field is not uniform enough, which affects the measurement accuracy; the short side of the parallelogram is 1 / 3πd long, the short side is parallel to the axis of the organic glass tube 5, and the long side is helically pasted. Copper electrode plate thickness 2cm. The axial distance between two copper electrode plates is 1 / 6πd. A total of two wires 1 and 2 with shielding mesh are drawn out from the geometric center of the two coppe...
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