CN111238996A - Multiphase fluid density measurement system and measurement method - Google Patents
Multiphase fluid density measurement system and measurement method Download PDFInfo
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- CN111238996A CN111238996A CN202010144429.3A CN202010144429A CN111238996A CN 111238996 A CN111238996 A CN 111238996A CN 202010144429 A CN202010144429 A CN 202010144429A CN 111238996 A CN111238996 A CN 111238996A
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- 239000012530 fluid Substances 0.000 title claims abstract description 78
- 238000001739 density measurement Methods 0.000 title claims description 15
- 238000000691 measurement method Methods 0.000 title description 2
- 230000001105 regulatory effect Effects 0.000 claims abstract description 76
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000013016 damping Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 14
- 238000005259 measurement Methods 0.000 claims description 11
- 230000001276 controlling effect Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000003208 petroleum Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
- G01N9/04—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume of fluids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/36—Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture
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Abstract
The invention discloses a multiphase fluid density measuring system, which comprises a main pipeline front section, wherein the main pipeline front section is connected with an inlet of an electric three-way flow regulating valve; the outlet of the electric three-way flow regulating valve is respectively connected with the front section inlet of the measuring pipeline and the inlet of the shunt pipeline; the outlet of the front section of the measuring pipeline is connected with the inlet of the electric three-way flow regulating valve; the outlet of the electric three-way flow regulating valve is respectively connected with the inlet of the F quantitative pipe and the inlet of the G quantitative pipe; the outlet of the F quantitative pipe and the outlet of the G quantitative pipe are both connected with the inlet of the electric three-way flow regulating valve; the outlet of the electric three-way flow control valve is connected with the inlet of the rear section of the measuring pipeline, and by adopting the multiphase fluid density measuring system and the measuring method, the data transmission efficiency is high, the classification and control of various data are more accurate, the information accuracy is improved, and the phenomenon of name loss during platform butt joint can be avoided.
Description
Technical Field
The invention relates to the technical field of detection, in particular to a multiphase fluid density measuring system and a multiphase fluid density measuring method.
Background
In large-scale petroleum collection and transportation, the density of oil, gas and water three-phase mixed fluid in an oil pipeline needs to be measured in real time in order to better measure and control the system. The flow properties of multiphase fluids with different oil, gas and water three-phase mixing ratios are obviously different, and the density measurement of the oil, gas and water three-phase mixed fluid is required to have no influence on the petroleum collection and transportation as much as possible, so that the implementation of measuring the density of the oil, gas and water three-phase mixed fluid in the oil pipeline in real time in the petroleum collection and transportation is very difficult. At present, no good method for measuring the density of the oil, gas and water three-phase mixed fluid in the oil pipeline in real time in petroleum collection and transportation exists in China, and related products are almost not available. Some foreign people measure the mobile phase parameters and adopt a model method to calculate so as to realize the real-time measurement of the density of the oil, gas and water three-phase mixed fluid in the oil pipeline in the oil collection and transportation process, however, the method can be used for realizing the purpose, but the measurement accuracy is not high.
Disclosure of Invention
The present invention is directed to a multiphase fluid density measurement system and a multiphase fluid density measurement method, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a multi-phase fluid density measuring system comprises a main pipeline front section, wherein the main pipeline front section is connected with an inlet of an electric three-way flow regulating valve; the outlet of the electric three-way flow regulating valve is respectively connected with the front section inlet of the measuring pipeline and the inlet of the shunt pipeline; the outlet of the front section of the measuring pipeline is connected with the inlet of the electric three-way flow regulating valve; the outlet of the electric three-way flow regulating valve is respectively connected with the inlet of the F quantitative pipe and the inlet of the G quantitative pipe; the outlet of the F quantitative pipe and the outlet of the G quantitative pipe are both connected with the inlet of the electric three-way flow regulating valve; the outlet of the electric three-way flow regulating valve is connected with the inlet of the rear section of the measuring pipeline; the outlet of the rear section of the measuring pipeline and the outlet of the shunt pipeline are both connected with the inlet of the electric three-way flow regulating valve; the outlet of the electric three-way flow regulating valve is connected with the rear section of the main pipeline; a measuring pipeline pressure sensor is arranged at the front section of the measuring pipeline; a shunt pipeline pressure sensor and a shunt pipeline flow resistance regulator are arranged on the shunt pipeline; the front and the rear of the F quantitative pipe are respectively provided with a front section dynamic sealing joint of the F quantitative pipe and a rear section dynamic sealing joint of the F quantitative pipe; the front and the rear of the G quantitative pipe are respectively provided with a front section dynamic sealing joint of the G quantitative pipe and a rear section dynamic sealing joint of the G quantitative pipe; the middle part of the F quantitative pipe is provided with an F quantitative pipe counterweight; the middle part of the G quantitative pipe is provided with a G quantitative pipe counterweight; if the upper end of the F quantitative pipe counterweight or the G quantitative pipe counterweight is connected with the tension sensor, the lower end of the F quantitative pipe counterweight or the G quantitative pipe counterweight is connected with the damping slide rail; if the upper end of the F quantitative pipe counterweight or the G quantitative pipe counterweight is connected with the damping slide rail, the lower end of the F quantitative pipe counterweight or the G quantitative pipe counterweight is connected with the pressure sensor; the tension sensor, the pressure sensor and the damping slide rail are fixedly connected with a system shell, and the measuring pipeline pressure sensor, the shunt pipeline pressure sensor, the electric three-way flow regulating valve, the shunt pipeline flow resistance regulator, the tension sensor and the pressure sensor are all connected with a master control system.
As a further technical scheme of the invention: the F quantitative pipe or the G quantitative pipe is a pipeline with two bent ends, and the plane where the axis curve of the F quantitative pipe or the G quantitative pipe is located is a horizontal plane.
As a further technical scheme of the invention: the main control system collects data of a pressure sensor of a measuring pipeline, a pressure sensor of a shunting pipeline, a tension sensor or a pressure sensor, controls the electric three-way flow regulating valve at the front section of the main pipeline, the electric three-way flow regulating valve at the rear section of the main pipeline, the electric three-way flow regulating valve at the front section of the measuring pipeline, the electric three-way flow regulating valve at the rear section of the measuring pipeline and the flow resistance regulator of the shunting pipeline, and calculates the density of multiphase fluid in real time.
As a further technical scheme of the invention: the front and back mounted dynamic seal joints of the F quantitative pipe and the G quantitative pipe ensure that the F quantitative pipe and the G quantitative pipe can rotate at low resistance in a plane perpendicular to the flowing direction of the fluid while the flowing of the fluid in the F quantitative pipe and the G quantitative pipe is not influenced.
As a further technical scheme of the invention: the control system is a single chip or a computer.
A multiphase fluid density measurement method adopts the measurement system and comprises the following specific steps: when the density measurement of the multiphase fluid is started, firstly, the main control system is started, and the main control system controls the electric three-way flow regulating valve at the front section of the measurement pipelineAnd the electric three-way flow regulating valve at the rear section of the measuring pipeline closes the F quantitative pipe or the G quantitative pipe and opens the G quantitative pipe or the F quantitative pipe at the other path to the maximum, then the master control system controls to open the related valves to enable the multiphase fluid to be measured to flow into the system from the front section of the main pipeline, the multiphase fluid to be measured respectively flows into the front section of the measuring pipeline and the shunt pipeline after being shunted by the electric three-way flow regulating valve at the front section of the main pipeline, the multiphase fluid to be measured flowing into the front section of the measuring pipeline flows into the opened G quantitative pipe or the F quantitative pipe through the electric three-way flow regulating valve at the front section of the measuring pipeline, then flows into the rear section of the measuring pipeline through the electric three-way flow regulating valve at the rear section of the measuring pipeline, the multiphase fluid to be measured flowing into the rear section of the measuring pipeline, the volume in the F quantitative pipe is the same as that in the G quantitative pipe, the electric three-way flow control valve at the front section of the main pipeline and the electric three-way flow control valve at the rear section of the main pipeline adopt the same type of equipment, the equipment is kept completely synchronous when in control, namely the real-time opening degree is completely the same, the electric three-way flow control valve at the front section of the measuring pipeline and the electric three-way flow control valve at the rear section of the measuring pipeline adopt the same type of equipment, the equipment is kept completely synchronous when in control, namely the real-time opening degree is completely the same, in the measuring process, the main control system collects signals of a pressure sensor of the measuring pipeline and a pressure sensor of a shunt pipeline in real time and feeds back the signals to synchronously control the electric three-way flow control valve at the front section of the main pipeline and the electric three-way flow control valve at the rear section of the main, the main control system synchronously controls the electric three-way flow regulating valve at the front section of the measuring pipeline and the electric three-way flow regulating valve at the rear section of the measuring pipeline at intervals to realize the F quantitative pipe or the G quantitative pipe which is closed before being slowly opened, and synchronously and slowly closes the other G quantitative pipe or the F quantitative pipe, so that the flow of multiphase fluid to be measured flowing into the measuring pipeline is basically kept unchanged in the process, when the F quantitative pipe or the G quantitative pipe is completely closed, the other G quantitative pipe or the F quantitative pipe is opened to the maximum, and when the F quantitative pipe or the G quantitative pipe is completely closed, the F quantitative pipeAfter the quantitative pipe or the G quantitative pipe is completely closed, the F quantitative pipe or the G quantitative pipe is damped through the damping slide rail, after signals of the tension sensor or the pressure sensor are stable, the main control system reads signals of the tension sensor or the pressure sensor, the multiphase fluid mass in the F quantitative pipe or the G quantitative pipe is calculated through a signal-multiphase fluid mass model of the tension sensor or the pressure sensor, m is F (x), x is the signal of the tension sensor or the pressure sensor, m is the multiphase fluid mass, and the main control system finally calculates the density of the multiphase fluid to be measured through the following formula
Wherein m is the mass of the multiphase fluid, V is the volume in the F quantitative pipe or the G quantitative pipe, and rho is the density of the multiphase fluid to be measured.
As a further technical scheme of the invention: and the signal of the tension sensor or the pressure sensor-multiphase fluid mass model is determined by system calibration.
Compared with the prior art, the invention has the beneficial effects that: by adopting the multiphase fluid density measuring system and the multiphase fluid density measuring method, the data transmission efficiency is high, the classification and control of various data are more accurate, the information accuracy is improved, and the phenomenon of name missing during platform butt joint is avoided.
Drawings
FIG. 1 is a schematic diagram of a multiphase fluid density measurement system.
Fig. 2 is a schematic view of a measurement portion of a multiphase fluid density measurement system.
In the figure: an electric three-way flow regulating valve 1; a measuring line pressure sensor 2; an electric three-way flow regulating valve 3; f, a front section dynamic sealing joint 4 of the quantitative pipe; g, a front section dynamic seal joint 5 of the quantitative pipe; f, quantifying the tube counterweight 6; g, quantifying a pipe counterweight 7; f, quantifying the rear section dynamic seal joint 8 of the tube; g, a quantitative pipe rear section dynamic seal joint 9; an electric three-way flow regulating valve 10; an electric three-way flow regulating valve 11; a shunt line pressure sensor 12; a shunt line flow resistance regulator 13; a tension sensor 14; a system housing 15; a damping slide 16; a master control system 17; a main pipeline front section 18; a main line rear section 19; a shunt line 20; a measurement pipeline front section 21; a measurement line back section 22; f, a quantitative pipe 23; g quantification tube 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a multiphase fluid density measuring system includes a main pipeline front section 18, wherein the main pipeline front section 18 is connected to an inlet 1 of an electric three-way flow regulating valve; the outlet of the electric three-way flow regulating valve 1 is respectively connected with the inlet of the front section 21 of the measuring pipeline and the inlet of the shunt pipeline 20; the outlet of the front section 21 of the measuring pipeline is connected with the inlet of the electric three-way flow regulating valve 3; the outlet of the electric three-way flow regulating valve 3 is respectively connected with the inlet of the F quantitative pipe 23 and the inlet of the G quantitative pipe 24; the outlet of the F quantitative pipe 23 and the outlet of the G quantitative pipe 24 are both connected with the inlet of the electric three-way flow regulating valve 10; the outlet 10 of the electric three-way flow regulating valve is connected with the inlet of the rear section 22 of the measuring pipeline; the outlet of the rear section 22 of the measuring pipeline and the outlet of the shunt pipeline 20 are both connected with the inlet of the electric three-way flow regulating valve 11; the outlet of the electric three-way flow regulating valve 11 is connected with the rear section 19 of the main pipeline; the front section 21 of the measuring pipeline is provided with a measuring pipeline pressure sensor 2; a shunt pipeline pressure sensor 12 and a shunt pipeline flow resistance regulator 13 are arranged on the shunt pipeline 20; the front and the back of the F quantitative pipe 23 are respectively provided with an F quantitative pipe front section dynamic sealing joint 4 and an F quantitative pipe back section dynamic sealing joint 8; the front and the rear of the G quantitative pipe 24 are respectively provided with a G quantitative pipe front section dynamic sealing joint 5 and a G quantitative pipe rear section dynamic sealing joint 9; the middle part of the F quantitative pipe 23 is provided with an F quantitative pipe counterweight 6; the middle part of the G quantitative pipe 24 is provided with a G quantitative pipe counterweight 7; if the upper end of the F quantitative pipe counterweight 6 or the G quantitative pipe counterweight 7 is connected with the tension sensor 14, the lower end of the F quantitative pipe counterweight 6 or the G quantitative pipe counterweight 7 is connected with the damping slide rail 16; if the upper end of the F quantitative pipe counterweight 6 or the G quantitative pipe counterweight 7 is connected with the damping slide rail 16, the lower end of the F quantitative pipe counterweight 6 or the G quantitative pipe counterweight 7 is connected with the pressure sensor; the tension sensor 14, the pressure sensor and the damping slide rail 16 are fixedly connected with a system shell 15, and the measuring pipeline pressure sensor 2, the shunt pipeline pressure sensor 12, the electric three-way flow regulating valve 1, the electric three-way flow regulating valve 11, the electric three-way flow regulating valve 1, the electric three-way flow regulating valve 10, the shunt pipeline flow resistance regulator 13, the tension sensor 14 and the pressure sensor are all connected with a main control system 17.
The F quantitative pipe 23 or the G quantitative pipe 24 is a pipeline with two bent ends, and a plane where a shaft curve of the F quantitative pipe 23 or the G quantitative pipe 24 is located is a horizontal plane.
The main control system collects data of a pressure sensor 16 of the measuring pipeline, a pressure sensor 12 of the shunt pipeline, a tension sensor 14 or the pressure sensor 16, controls an electric three-way flow regulating valve 1 at the front section of the main pipeline, an electric three-way flow regulating valve 11 at the rear section of the main pipeline, an electric three-way flow regulating valve 3 at the front section of the measuring pipeline, an electric three-way flow regulating valve 10 at the rear section of the measuring pipeline and a flow resistance regulator 13 of the shunt pipeline, and calculates the density of multiphase fluid in real time. The front and back mounted dynamic seal joints of the F quantitative pipe 23 and the G quantitative pipe 24 ensure that the F quantitative pipe 23 and the G quantitative pipe 24 can rotate in a plane perpendicular to the flowing direction of the fluid with low resistance while the flowing of the fluid in the F quantitative pipe 23 and the G quantitative pipe 24 is not influenced. The control system 17 is a single chip or a computer.
Wherein, the signal of the tension sensor or the pressure sensor-the multiphase fluid mass model is determined by system calibration.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A multi-phase fluid density measuring system comprises a main pipeline front section (18), and is characterized in that the main pipeline front section (18) is connected with an electric three-way flow regulating valve inlet (1); the outlet of the electric three-way flow regulating valve (1) is respectively connected with the inlet of the front section (21) of the measuring pipeline and the inlet of the shunt pipeline (20); the outlet of the front section (21) of the measuring pipeline is connected with the inlet of the electric three-way flow regulating valve (3); the outlet of the electric three-way flow regulating valve (3) is respectively connected with the inlet of the F quantitative pipe (23) and the inlet of the G quantitative pipe (24); the outlet of the F quantitative pipe (23) and the outlet of the G quantitative pipe (24) are both connected with the inlet of the electric three-way flow regulating valve (10); the outlet (10) of the electric three-way flow regulating valve is connected with the inlet of the rear section (22) of the measuring pipeline; the outlet of the rear section (22) of the measuring pipeline and the outlet of the shunt pipeline (20) are both connected with the inlet of the electric three-way flow regulating valve (11); the outlet of the electric three-way flow regulating valve (11) is connected with the rear section (19) of the main pipeline; a measuring pipeline pressure sensor (2) is arranged at the front section (21) of the measuring pipeline; a shunt pipeline pressure sensor (12) and a shunt pipeline flow resistance regulator (13) are arranged on the shunt pipeline (20); the front and the back of the F quantitative pipe (23) are respectively provided with an F quantitative pipe front section dynamic sealing joint (4) and an F quantitative pipe back section dynamic sealing joint (8); the front and the back of the G quantitative pipe (24) are respectively provided with a G quantitative pipe front section dynamic sealing joint (5) and a G quantitative pipe back section dynamic sealing joint (9); the middle part of the F quantitative pipe (23) is provided with an F quantitative pipe counterweight (6); the middle part of the G quantitative pipe (24) is provided with a G quantitative pipe counterweight (7); if the upper end of the F quantitative pipe counterweight (6) or the G quantitative pipe counterweight (7) is connected with the tension sensor (14), the lower end of the F quantitative pipe counterweight (6) or the G quantitative pipe counterweight (7) is connected with the damping slide rail (16); if the upper end of the F quantitative pipe counterweight (6) or the G quantitative pipe counterweight (7) is connected with the damping slide rail (16), the lower end of the F quantitative pipe counterweight (6) or the G quantitative pipe counterweight (7) is connected with the pressure sensor; the tension sensor (14), the pressure sensor and the damping slide rail (16) are fixedly connected with a system shell (15), and the measuring pipeline pressure sensor (2), the shunt pipeline pressure sensor (12), the electric three-way flow regulating valve (1), the electric three-way flow regulating valve (11), the electric three-way flow regulating valve (1), the electric three-way flow regulating valve (10), the shunt pipeline flow resistance regulator (13), the tension sensor (14) and the pressure sensor are connected with a main control system (17).
2. The multiphase fluid density measurement system according to claim 1, wherein the F quantitative pipe (23) or the G quantitative pipe (24) is a pipe with two bent ends, and a plane where a central axis curve of the F quantitative pipe (23) or the G quantitative pipe (24) is located is a horizontal plane.
3. The system for measuring the density of the multiphase fluid according to claim 1, wherein the main control system collects data of the pressure sensor (16) of the measurement pipeline, the pressure sensor (12) of the shunt pipeline, the tension sensor (14) or the pressure sensor (16), controls the electric three-way flow control valve (1) at the front section of the main pipeline, the electric three-way flow control valve (11) at the rear section of the main pipeline, the electric three-way flow control valve (3) at the front section of the measurement pipeline, the electric three-way flow control valve (10) at the rear section of the measurement pipeline and the flow resistance regulator (13) of the shunt pipeline, and calculates the density of the multiphase fluid in.
4. The multiphase fluid density measurement system according to claim 1, wherein the F quantitative pipe (23) and the G quantitative pipe (24) are provided with dynamic sealing joints arranged in front and back, so that the F quantitative pipe (23) and the G quantitative pipe (24) can rotate with low resistance in a plane perpendicular to the fluid flow direction while fluid flow in the F quantitative pipe (23) and the G quantitative pipe (24) is not affected.
5. A multiphase fluid density measurement system according to claim 1, wherein the control system (17) is a single chip or a computer.
6. A method for measuring density of multiphase fluid, which is characterized by using the measuring system of any one of claims 1-5, comprising the following steps: when the density measurement of multiphase fluid is started, firstly, the main control system is started, the main control system controls the electric three-way flow regulating valve at the front section of the measuring pipeline and the electric three-way flow regulating valve at the rear section of the measuring pipeline to close the F quantitative pipe or the G quantitative pipe, and opens the G quantitative pipe or the F quantitative pipe to the maximum, then the main control system controls the relevant valves to be started to enable the multiphase fluid to be measured to flow into the system from the front section of the main pipeline, the multiphase fluid to be measured flows into the front section of the measuring pipeline and the shunt pipeline respectively after being shunted by the electric three-way flow regulating valve at the front section of the main pipeline, the multiphase fluid to be measured flowing into the front section of the measuring pipeline flows into the opened G quantitative pipe or the F quantitative pipe through the electric three-way flow regulating valve at the front section of the measuring pipeline, then flows into the rear section of the measuring pipeline through the electric three- Segment, then flows out of the system from the rear segment of the main pipeline, F quantifies the volume in the pipelineThe volume of the main pipeline front section electric three-way flow control valve and the main pipeline rear section electric three-way flow control valve are the same as the volume of the G quantitative pipe, the main pipeline front section electric three-way flow control valve and the main pipeline rear section electric three-way flow control valve are devices with the same model, the switches are kept completely synchronous during control, namely the real-time opening degrees are completely the same, in the measuring process, a main control system collects signals of a measuring pipeline pressure sensor and a shunt pipeline pressure sensor in real time and feeds back signals of the measuring pipeline front section electric three-way flow control valve and the main pipeline rear section electric three-way flow control valve synchronously in real time to keep the pressures of the measuring pipeline and the shunt pipeline the same all the time, and the main control system regulates the total flow of the multiphase fluid to be measured flowing into the measuring system by controlling a shunt pipeline flow resistance regulator, the main control system synchronously controls the electric three-way flow regulating valve at the front section of the measuring pipeline and the electric three-way flow regulating valve at the rear section of the measuring pipeline at intervals to realize the F quantitative pipe or the G quantitative pipe which is closed before being slowly opened, synchronously and slowly closes the other G quantitative pipe or the F quantitative pipe, ensures that the flow of the multiphase fluid to be measured flowing into the measuring pipeline is basically kept unchanged in the process, when the F quantitative pipe or the G quantitative pipe is completely closed, the other G quantitative pipe or the F quantitative pipe is opened to the maximum, after the F quantitative pipe or the G quantitative pipe is completely closed, the F quantitative pipe or the G quantitative pipe is damped by a damping slide rail, after signals of a tension sensor or a pressure sensor are stabilized, the main control system reads signals of the tension sensor or the pressure sensor and calculates the multiphase fluid mass in the F quantitative pipe or the G quantitative pipe by a tension sensor or pressure sensor signal-multiphase fluid mass model, m ═ f (x), wherein x is a signal of a tension sensor or a pressure sensor, m is the mass of the multiphase fluid, and the main control system finally calculates the density of the multiphase fluid to be measured by the following formula
Wherein m is the mass of the multiphase fluid, V is the volume in the F quantitative pipe or the G quantitative pipe, and rho is the density of the multiphase fluid to be measured.
7. The method of claim 5, wherein the pull sensor or pressure sensor signal-multiphase fluid mass model is determined by system calibration.
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| CN202010144429.3A CN111238996A (en) | 2020-03-04 | 2020-03-04 | Multiphase fluid density measurement system and measurement method |
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2020
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| CN1546981A (en) * | 2003-12-02 | 2004-11-17 | 冯长周 | Three phase mixed fluid on-line parameter measuring method and device |
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Application publication date: 20200605 |