| 摘要 |
A system for measuring a fluid flow rate in a wellbore disposed in an earth formation is disclosed. The system includes: a wellbore assembly configured to be disposed along a length of a wellbore, the wellbore configured to receive a wellbore fluid therein; a distributed temperature sensor (DTS) assembly disposed along the length of the wellbore and configured to take a plurality of temperature measurements along the length of the wellbore; and a processor in operable communication with the fiber optic sensor, the processor configured to receive the temperature measurements and apply a fluid flow rate model of fluid flow rates to the temperature measurements to calculate a fluid flow profile of the wellbore. The model is based on a steady-state energy balance between the wellbore fluid and the earth formation and a Joule- Thomson coefficient including a liquid volume expansion factor and a fraction of gas in the wellbore fluid.
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