Flowmeter with discontinuous helicoid turbine
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United States of America Patent
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Issued Date -
Mar 28, 2019
app pub date -
Sep 27, 2017
filing date -
Sep 27, 2017
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Abstract
A flowmeter for use downhole estimates fluid flow with a helically shaped spinner member disposed in a path of the flowing fluid. Features, such as magnets, are mounted in the spinner member so that spinner member rotational rate can be sensed, thereby estimating fluid flow. Discontinuities along an axis of the spinner member define segments that are adjacent one another. Adjacent segments can differ angularly, by pitch, as well as by length. With the discontinuities, segment design is less constrained by the geometry of adjacent segments, so that feature locations on the spinner member are maintained, while maximizing sensitivity of the spinner member to fluid flow.
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