Method for calibrating a device for measuring phase fractions of polyphase fluid under flow conditions, measuring method, and related device
First Claim
1. A method for calibrating, under flow conditions, a device for measuring at least one property of a pressurized polyphase fluid circulating in a pipe, the property being computed using at least one piece of information received from a first sensor placed opposite the fluid circulating in the pipe, the polyphase fluid comprising at least one liquid phase and a gaseous phase, the method comprising:
- circulating the pressurized polyphase fluid through a flow channel connected to the pipe;
connecting a measuring channel to the flow channel via a valve manifold, the measuring channel being provided with a second sensor delivering at least one piece of information similar to that delivered by the first sensor;
taking a first sample of pressurized gaseous phase from the flow channel and transferring the first sample of pressurized gaseous phase to the measuring channel through the valve manifold;
activating the second sensor to collect a first piece of information representative of the first sample of pressurized gaseous phase present in the measuring channel;
taking at least one second sample of pressurized liquid phase from the flow channel and transferring the second pressurized sample to the measuring channel through the valve manifold;
activating the second sensor to collect at least one second piece of information representative of the at least one second sample of pressurized liquid phase present in the measuring channel opposite the second sensor;
computing at least one calibration coefficient connecting the property to the at least one piece of information received from the first sensor, based on the first piece of information and the at least one second piece of information.
2 Assignments
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Accused Products
Abstract
This method comprises taking a first pressurized gaseous phase sample in a flow channel and transferring the first sample in the measuring channel. It comprises activating a second sensor to collect a first piece of information representative of the first pressurized sample. The method comprising taking a second pressurized liquid phase sample, transferring the second sample in the measuring channel and activating the second sensor a second piece of information representative of the second pressurized sample. The method comprises the computation of at least one calibration coefficient connecting the property to the or each piece of information received from the sensor, based on the first piece of information and the second piece of information.
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Citations
15 Claims
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1. A method for calibrating, under flow conditions, a device for measuring at least one property of a pressurized polyphase fluid circulating in a pipe, the property being computed using at least one piece of information received from a first sensor placed opposite the fluid circulating in the pipe, the polyphase fluid comprising at least one liquid phase and a gaseous phase, the method comprising:
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circulating the pressurized polyphase fluid through a flow channel connected to the pipe; connecting a measuring channel to the flow channel via a valve manifold, the measuring channel being provided with a second sensor delivering at least one piece of information similar to that delivered by the first sensor; taking a first sample of pressurized gaseous phase from the flow channel and transferring the first sample of pressurized gaseous phase to the measuring channel through the valve manifold; activating the second sensor to collect a first piece of information representative of the first sample of pressurized gaseous phase present in the measuring channel; taking at least one second sample of pressurized liquid phase from the flow channel and transferring the second pressurized sample to the measuring channel through the valve manifold; activating the second sensor to collect at least one second piece of information representative of the at least one second sample of pressurized liquid phase present in the measuring channel opposite the second sensor; computing at least one calibration coefficient connecting the property to the at least one piece of information received from the first sensor, based on the first piece of information and the at least one second piece of information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A process for measuring at least one property of a polyphase fluid continuously circulating in a pipe, the property being computed using at least one piece of information received from a first sensor placed opposite the fluid circulating in the pipe, the polyphase fluid comprising at least one liquid phase and a gaseous phase, the process comprising:
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calibrating the measurement by carrying out a calibration method, the calibration method comprising; circulating a pressurized polyphase fluid continuously through a flow channel connected to the pipe; connecting a measuring channel to the flow channel via a valve manifold, the measuring channel being provided with a second sensor delivering at least one piece of information similar to that delivered by the first sensor; taking a first sample of pressurized gaseous phase from the flow channel and transferring the first sample of pressurized gaseous phase to the measuring channel through the valve manifold; activating the second sensor to collect a first piece of information representative of the first sample of pressurized gaseous phase present in the measuring channel; taking at least one second sample of pressurized liquid phase from the flow channel and transferring the second pressurized sample to the measuring channel through the valve manifold; activating the second sensor to collect at least one second piece of information representative of the at least one second sample of pressurized liquid phase present in the measuring channel opposite the second sensor; computing at least one calibration coefficient connecting the property to the at least one piece of information received from the first sensor, based on the first piece of information and the at least one second piece of information; and continuously measuring the property comprising; activating the first sensor to collect a piece of information representative of the polyphase fluid circulating in the pipe; and computing the measured parameter based on at least one piece of representative information received from the first sensor and at least one calibration coefficient determined during the calibration step.
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10. A device for measuring at least one property of a pressurized polyphase fluid continuously circulating in a pipe, the polyphase fluid comprising at least one liquid phase and at least one gaseous phase, the device comprising:
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a measuring assembly, the measuring assembly comprising; a section of the pipe having a first sensor capable of interacting with the fluid circulating in the section of the pipe to create at least one piece of information; and a means for computing the at least one property from the information received from the first sensor; and a calibration assembly, the calibration assembly comprising; a flow channel connected to the pipe to allow the continuous circulation of at least part of the polyphase fluid circulating in the pipe during a calibration step; a measuring channel separate from the flow channel, the measuring channel having a second sensor delivering at least one piece of information similar to that delivered by the first sensor; and a valve manifold connecting the measuring channel to the flow channel, the valve manifold comprising; at least one pressurized transport channel for flowing a first sample of pressurized gaseous phase from the flow channel to the measuring channel, the at least one pressurized transport channel connecting the measuring channel to a gaseous phase collection point in the flow channel; and at least one transport channel for transporting a second sample of pressurized liquid phase from the flow channel to the measuring channel, the at least one transport channel connecting the measuring channel to a liquid phase collection point on the flow channel. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification