Acoustic measurement of wellbore conditions
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United States of America Patent
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Aug 28, 2018
Grant Date -
Jun 23, 2016
app pub date -
Nov 19, 2013
filing date -
Nov 19, 2013
priority date (Note) -
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Abstract
A method of measuring fluid flow conditions in a wellbore includes generating an acoustic probe signal during fluid flow along the wellbore, measuring the performance attribute of the acoustic probe signal within a target frequency range, and of the fluid medium in at least a part of the wellbore based on the measured performance parameters. The target frequency range of the acoustic probe signal encompasses a bubble resonance frequency range for vapor bubbles in the wellbore, for example having frequencies in excess of 20 kHz. An estimated bubble size value may be calculated based on determining a frequency at which the measured probe signal experiences the retardation or peak attenuation.
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