CN112459771A - Automatic well reversing and oil-gas-water multiphase flow metering system, control method and application - Google Patents
Automatic well reversing and oil-gas-water multiphase flow metering system, control method and application Download PDFInfo
- Publication number
- CN112459771A CN112459771A CN202011464419.4A CN202011464419A CN112459771A CN 112459771 A CN112459771 A CN 112459771A CN 202011464419 A CN202011464419 A CN 202011464419A CN 112459771 A CN112459771 A CN 112459771A
- Authority
- CN
- China
- Prior art keywords
- gas
- valve
- pipeline
- well
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 claims abstract description 27
- 230000008569 process Effects 0.000 claims abstract description 19
- 239000003208 petroleum Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 41
- 239000007789 gas Substances 0.000 claims description 37
- 239000012530 fluid Substances 0.000 claims description 34
- 239000003921 oil Substances 0.000 claims description 19
- 238000005259 measurement Methods 0.000 claims description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 239000010779 crude oil Substances 0.000 claims description 5
- 239000003345 natural gas Substances 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000011143 downstream manufacturing Methods 0.000 claims description 3
- 238000011156 evaluation Methods 0.000 claims description 3
- 238000013178 mathematical model Methods 0.000 claims description 3
- 230000005251 gamma ray Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000003889 chemical engineering Methods 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/086—Withdrawing samples at the surface
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention belongs to the technical field of oil gas gathering and transportation metering systems such as petroleum, chemical engineering and the like, and discloses an automatic well-reversing and oil gas water multiphase flow metering system, a control method and application, wherein a multiway valve is integrally installed in a prying frame, the output end of the multiway valve is respectively connected with a metering outlet pipeline and a manifold outlet pipeline, the metering outlet pipeline is connected with a multiphase flowmeter through a process pipeline, and the manifold outlet pipeline is connected to a downstream gathering and transportation pipeline; the outlet end of the manifold outlet pipeline is provided with a stop valve; the multi-way valve and the multiphase flowmeter are electrically connected with a control device. The multi-way valve is provided with 4-16 inlets which are respectively connected with each single-well production metering pipeline of a well site. The invention simplifies the field matched process pipeline and equipment installation operation flow, saves investment for oil gas development and production management, and reduces the occupied area of equipment. The device has the characteristics of high integration, novel design, simple structure, compact size, safety, reliability and convenience in installation.
Description
Technical Field
The invention belongs to the technical field of oil-gas gathering and transportation metering systems in petroleum, chemical engineering and the like, and particularly relates to an automatic well-reversing and oil-gas-water multiphase flow metering system, a control method and application.
Background
At present, with the development of oil and gas exploitation and drilling technology, cluster wells are widely applied to oil and gas field exploitation, and the cluster wells are developed in a centralized manner by drilling a plurality of oil and gas wells in a well site, particularly an offshore oil production platform. In the production management process of the oil and gas field, in order to monitor the dynamic change condition of the production flow of the oil and gas well, a multiphase flowmeter is required to be installed on a production pipeline and used for measuring the yield of natural gas, crude oil and water in real time, obtaining real-time data of continuous production of the oil and gas well and dynamically monitoring the production of the gas well and optimizing the production process. Along with the digital development demand of oil and gas field exploitation, the multiway valve replaces the traditional manual valve, manifold and the like, is popularized and used in the oil field, and has the advantages of saving the fixed input cost, saving the whole skid-mounted space, saving the operation labor cost, saving the later maintenance cost, saving the installation time and the construction cost, and realizing the automatic control.
At present, a multiphase flowmeter and a multi-way valve used on an oil and gas field are installed according to two independent devices, the multiphase flowmeter and the multi-way valve are connected through a field manifold, and then two sets of devices are independently controlled by a central control system. Although the production process flow is mature, additional process pipelines and two sets of control systems are required to be configured, so that the system is relatively complex, the occupied area is large, and the construction cost is increased.
Through the above analysis, the problems and defects of the prior art are as follows: based on the safety design requirements of well head equipment and the like, two sets of independent equipment of the multi-way valve and the multiphase flowmeter are respectively provided with an emergency shut-off valve, a safety valve, a discharge pipeline, an emptying and drainage pipeline, a temperature and pressure monitoring system and the like, so that the existing production process flow system is complex, large in occupied area and high in construction cost; and the multi-way valve and the multiphase flowmeter are two independent systems, two control systems and control strategies are needed, the control systems are complex, the multi-way valve and the multiphase flowmeter are easy to be out of synchronization, and the like.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an automatic well-reversing and oil-gas-water multiphase flow metering system, a control method and application.
The invention is realized in this way, an automatic well-reversing and oil-gas-water multiphase flow metering system is provided with:
a prying frame;
a multi-way valve is integrally installed in the prying frame, the output end of the multi-way valve is respectively connected with a metering outlet pipeline and a manifold outlet pipeline, the metering outlet pipeline is connected with a multiphase flowmeter through a process pipeline, and the manifold outlet pipeline is connected to a downstream gathering pipeline; the outlet end of the manifold outlet pipeline is provided with a stop valve; the multi-way valve and the multiphase flowmeter are electrically connected with a control device.
Further, the multi-way valve is provided with 4-16 inlets which are respectively connected with each single-well production metering pipeline of a well site; the multiway valve is provided with two outlets which are respectively connected with the manifold outlet and the metering outlet through pipelines.
Further, the multiphase flowmeter is provided with an inlet blind three-way structural part which is communicated with the metering outlet pipeline; the inlet blind three-way structural part is provided with a temperature transmitter, the upper end of the inlet blind three-way structural part is connected with a measuring pipeline, and the measuring pipeline is perpendicular to the inlet blind three-way structural part; and the measuring pipeline is sequentially provided with a pressure transmitter, a differential pressure transmitter, a Venturi flowmeter and a gas-liquid ratio sensor.
Further, a sampler is arranged at the output end of the measuring pipeline, a central pipe is arranged in the lower end of the sampler, the upper end of the central pipe is connected with a valve through a siphon overflow pipe, and the lower end of the central pipe is connected with the other end of the valve; and a phase fraction sensor is arranged between the sampler and the siphon overflow pipe.
Another object of the present invention is to provide a control method for implementing the automatic well-reversing and oil-gas-water multiphase flow metering system, which comprises the following steps: the multiway valve receives the information of computer control device and switches the valve position of single well to be measured and connects with measuring outlet pipeline, the fluid produced by single well can be fed into process pipeline, the temperature of fluid can be measured by means of temperature transmitter, the pressure of fluid in process pipeline and measuring pipeline can be measured by means of pressure transmitter, the pressure difference produced by fluid can be measured by means of differential pressure transmitter and passed through Venturi flow meter, the gas-liquid ratio sensor can be used for measuring gas content in multiphase flow by means of different absorption rates of different substances to gamma ray, then the fluid can be fed into sampler, after the gas-liquid part of the sampler is separated, a low-gas-content liquid sample is taken to enter a phase fraction sensor, the water content of the fluid is measured by the phase fraction sensor, the fluid is converged at the outlet of a multiphase flowmeter, then the fluid is converged into a process pipeline of a manifold outlet pipeline after passing through a stop valve, and is converged with other single-well produced fluid and then enters a downstream gathering and transportation pipeline through the outlet of the device;
the computer control device stores the number of wells of each inlet connecting single well and the corresponding valve position of each single well and the parameters required by multiphase flow measurement without each single well, the computer control device receives the instruction sent by the remote control system and then sends the corresponding valve position parameters to the multi-way valve, the multi-way valve automatically switches the valve positions after receiving the corresponding instruction information, the multi-way valve sends position feedback information after switching in place, and the computer control device receives the position feedback information sent by the multi-way valve and compares and confirms the position feedback information with the sent instruction, calls the corresponding single well parameters and starts the oil and gas well yield measurement;
the computer control device collects signals of the temperature transmitter, the pressure transmitter, the differential pressure transmitter, the gas-liquid ratio sensor and the phase fraction sensor in real time, obtains flow, water content, gas content and pressure and temperature data of natural gas, crude oil and water in production fluid of the oil-gas well after calculating by using a special mathematical model, and uploads the data to the remote control system through the wireless transmission system for final production management evaluation.
Furthermore, the phase siphon overflow pipe of the control method is combined with the valve, when the low-gas-content liquid sample prepared by the sampler is less, all the liquid sample flows into the downstream through the valve; when the low-gas-content liquid samples prepared by the sampler are more, except that part of the liquid samples flow into the downstream through the valve, the rest liquid samples return to a central pipe in the sampler through the siphon overflow pipe and flow into a downstream process pipeline, the opening degree of the valve is adjusted to control the flow area ratio of the valve and the siphon overflow pipe, and the speed of the fluid in the phase fraction sensor is adjusted to adapt to different working conditions.
Furthermore, the other structure of the venturi flow meter and the gas-liquid ratio sensor on the measuring pipeline of the control method is that the gas-liquid ratio sensor is integrated at the throat part of the venturi flow meter.
Furthermore, the stop valve of the control method is arranged between outlet manifolds of the multiphase flowmeter, the stop valve is in an opening position during normal production and metering, when the multiphase flowmeter needs to be maintained, the valve position of the multi-way valve is firstly switched to the maintenance channel, then the stop valve is closed, the multiphase flowmeter can be isolated, and the maintenance of the multiphase flowmeter is realized on the premise of not influencing normal production of a single well.
The invention also aims to provide a petroleum oil gas gathering and transportation metering system which uses the automatic well-reversing and oil-gas-water multiphase flow metering system.
The invention also aims to provide a chemical oil-gas gathering and transportation metering system which uses the automatic well-reversing and oil-gas-water multiphase flow metering system.
By combining all the technical schemes, the invention has the advantages and positive effects that: the invention is arranged on a process pipeline of an oil-gas well production field, realizes remote automatic well pouring and alternate measurement, and monitors the flow of natural gas, crude oil and water produced by a single well in real time. The integrated skid device simplifies field matched process pipelines, auxiliary equipment and installation operation processes, saves investment for oil and gas development and production management, particularly reduces the occupied area of the device on an ocean platform, and has more remarkable economic benefit. The device has the characteristics of high integration, novel design, simple structure, compact size, safety, reliability and convenience in installation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an automatic well-reversing and oil-gas-water multiphase flow metering system provided by an embodiment of the invention;
FIG. 2 is a schematic diagram of a multiphase flow meter configuration provided by an embodiment of the invention;
in the figure: 1. a prying frame; 2. a multi-way valve; 3. a metering outlet line; 4. a manifold outlet line; 5. a multiphase flow meter; 6. a control device; 7. a stop valve; 8. an inlet blind tee structure; 9. a temperature transmitter; 10. a measurement line; 11. a pressure transmitter; 12. a differential pressure transmitter; 13. a venturi flow meter; 14. a gas-liquid ratio sensor; 15. a sampler; 16. a suction overflow pipe; 17. a phase fraction sensor; 18. a central tube; 19. and (4) a valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Aiming at the problems in the prior art, the invention provides an automatic well-reversing and oil-gas-water multiphase flow metering system, a control method and application thereof, and the invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the automatic well-reversing and oil-gas-water multiphase flow metering system of the embodiment of the invention comprises: prying frame 1, multi-way valve 2, metering outlet pipeline 3, manifold outlet pipeline 4, multiphase flowmeter 5, control device 6, stop valve 7, inlet blind tee structure 8, temperature transmitter 9, measuring pipeline 10, pressure transmitter 11, differential pressure transmitter 12, venturi flowmeter 13, gas-liquid ratio sensor 14, sampler 15, siphon overflow pipe 16, phase fraction sensor 17, central tube 18 and valve 19.
The multi-way valve 2 is integrally installed in the prying frame 1, the output end of the multi-way valve 2 is respectively connected with a metering outlet pipeline 3 and a manifold outlet pipeline 4, the metering outlet pipeline 3 is connected with a multiphase flowmeter 5 through a process pipeline, and the manifold outlet pipeline 4 is connected to a downstream gathering pipeline; the outlet end of the manifold outlet pipeline 4 is provided with a stop valve 7; the multi-way valve 2 and the multiphase flowmeter 5 are electrically connected with a control device 6.
In the embodiment, the multi-way valve 2 is provided with 4-16 inlets which are respectively connected with each single-well production metering pipeline of a well site; the multi-way valve 2 is provided with two outlets which are respectively connected with a manifold outlet and a metering outlet pipeline 3.
In the embodiment, the multiphase flowmeter 5 is provided with an inlet blind three-way structural part 8, and the inlet blind three-way structural part 8 is communicated with the metering outlet pipeline 3; a temperature transmitter 9 is installed on the inlet blind three-way structural part 8, the upper end of the inlet blind three-way structural part 8 is connected with a measuring pipeline 10, and the measuring pipeline 10 is perpendicular to the inlet blind three-way structural part 8; the measurement pipeline 10 is sequentially provided with a pressure transmitter 11, a differential pressure transmitter 12, a venturi flowmeter 13 and an air-liquid ratio sensor 14.
In the embodiment, the output end of the measuring pipeline 10 is provided with a sampler 15, the lower end of the sampler 15 is internally provided with a central pipe 18, the upper end of the central pipe 18 is connected with a valve 19 through a siphon overflow pipe 16, and the lower end of the central pipe 18 is connected with the other end of the valve 19; the sampler 15 is provided with a phase fraction sensor 17 between the siphon overflow pipes 16.
In this embodiment, the phase fraction sensor 17 is a gas-liquid ratio sensor, a microwave sensor, an ultrasonic sensor, a combined sensor of a gas-liquid ratio sensor and a microwave sensor, or a combined sensor of a gas-liquid ratio sensor and an ultrasonic sensor.
The working principle of the invention is as follows: the multiway valve 2 receives the information of the computer control device 6 and switches the valve position of the single well to be measured and is communicated with the measuring outlet pipeline 3, the fluid produced by the single well enters the process pipeline, the temperature of the fluid is measured by the temperature transmitter, the pressure of the fluid in the process pipeline and the measuring pipeline 10 is measured by the pressure transmitter 11, the pressure difference generated when the fluid passes through the Venturi flowmeter 13 is measured by the differential pressure transmitter 12, the gas-liquid ratio sensor 14 measures the gas content in the multiphase flow by utilizing the different absorption rates of different substances to gamma rays, then the fluid enters the sampler 15, after the gas-liquid part is separated by the sampler 15, the low gas-containing liquid sample enters the phase fraction sensor 17, the water content sensor 17 measures the water content of the fluid, the fluid is converged at the outlet of the multiphase flowmeter 5, then the fluid passes through the gate 7 of the stop valve and then is converged into the process pipeline of the converging outlet, and the fluid is merged with other single well produced fluid and enters a downstream gathering pipeline through an outlet of the device.
The phase siphon overflow pipe 16 is combined with a valve 19, when the sampler 15 prepares less low gas-containing liquid sample, all the liquid sample flows downstream through the valve 19; when the sampler 15 produces more low gas content liquid samples, except that part of the liquid samples flow into the downstream through the valve 19, the rest liquid samples return to the central pipe 18 in the sampler 15 through the siphon overflow pipe 16 and flow into the downstream process pipeline, and the opening degree of the valve 19 is adjusted to control the ratio of the flow areas of the valve 19 and the siphon overflow pipe 16, so as to adjust the speed of the fluid in the phase fraction sensor 17 for adapting to different working conditions.
Another configuration of venturi flow meter 13 and gas-liquid ratio sensor 14 on measuring line 10 is that gas-liquid ratio sensor 14 is integrated in the throat of venturi flow meter 13.
7 doors of stop valve install between 5 export manifolds of heterogeneous flowmeter, stop valve 7 is in the open position during normal production measurement, when 5 needs to be maintained of heterogeneous flowmeter, switch over the valve position of multiple unit valve 2 to the access way after earlier, close stop valve 7 again and can keep apart heterogeneous flowmeter 5, can realize not influencing heterogeneous flowmeter 5 of maintaining under the prerequisite of single well normal production.
The computer control device 6 stores the number of each inlet connecting single well of the multi-way valve 2 and the corresponding valve position, and parameters required by multiphase flow measurement without each single well, the computer control device 6 issues corresponding valve position parameters to the multi-way valve 2 after receiving an instruction issued by a remote control system, the multi-way valve 2 automatically switches the valve positions after receiving corresponding instruction information, the multi-way valve 2 sends position feedback information after switching in place, and the computer control device 6 calls corresponding single well parameters and starts oil and gas well yield measurement after receiving the position feedback information sent by the multi-way valve 2 and comparing and confirming the position feedback information with the issued instruction.
The computer control device 6 collects signals of the temperature transmitter, the pressure transmitter 11, the differential pressure transmitter 12, the gas-liquid ratio sensor 14 and the phase fraction sensor 17 in real time, obtains flow, water content, gas content, pressure and temperature data of natural gas, crude oil and water in production fluid of the oil-gas well after calculating by using a special mathematical model, and uploads the data to a remote control system through a wireless transmission system for final production management evaluation.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides an automatic fall well and multiphase flow of oil gas water measurement system which characterized in that, automatic fall well and multiphase flow of oil gas water measurement system is provided with:
a prying frame;
a multi-way valve is integrally installed in the prying frame, the output end of the multi-way valve is respectively connected with a metering outlet pipeline and a manifold outlet pipeline, the metering outlet pipeline is connected with a multiphase flowmeter through a process pipeline, and the manifold outlet pipeline is connected to a downstream gathering pipeline; the outlet end of the manifold outlet pipeline is provided with a stop valve; the multi-way valve and the multiphase flowmeter are electrically connected with a control device.
2. The automatic well-reversing and oil-gas-water multiphase flow metering system of claim 1, wherein the multiway valve is provided with 4-16 inlets which are respectively connected with each single well production metering pipeline of a well site; the multiway valve is provided with two outlets which are respectively connected with the manifold outlet and the metering outlet through pipelines.
3. The automatic well-reversing and oil-gas-water multiphase flow metering system of claim 1, wherein the multiphase flow meter is provided with an inlet blind tee structure, and the inlet blind tee structure is communicated with the metering outlet pipeline; the temperature transmitter is installed on the blind three-way structural part, the upper end of the blind three-way structural part is connected with a measuring pipeline, and the measuring pipeline is perpendicular to the blind three-way structural part; and the measuring pipeline is sequentially provided with a pressure transmitter, a differential pressure transmitter, a Venturi flowmeter and a gas-liquid ratio sensor.
4. The automatic well-dumping and oil-gas-water multiphase flow metering system of claim 1, wherein the output end of the measuring pipeline is provided with a sampler, the lower end of the sampler is internally provided with a central pipe, the upper end of the central pipe is connected with a valve through a siphon overflow pipe, and the lower end of the central pipe is connected with the other end of the valve; and a phase fraction sensor is arranged between the sampler and the siphon overflow pipe.
5. A control method for implementing the automatic well-pouring and oil-gas-water multiphase flow metering system of any one of claims 1 to 4, characterized by comprising the following steps: the multiway valve receives the information of computer control device and switches the valve position of single well to be measured and connects with measuring outlet pipeline, the fluid produced by single well can be fed into process pipeline, the temperature of fluid can be measured by means of temperature transmitter, the pressure of fluid in process pipeline and measuring pipeline can be measured by means of pressure transmitter, the pressure difference produced by fluid can be measured by means of differential pressure transmitter and passed through Venturi flow meter, the gas-liquid ratio sensor can be used for measuring gas content in multiphase flow by means of different absorption rates of different substances to gamma ray, then the fluid can be fed into sampler, after the gas-liquid part of the sampler is separated, a low-gas-content liquid sample is taken to enter a phase fraction sensor, the water content of the fluid is measured by the phase fraction sensor, the fluid is converged at the outlet of a multiphase flowmeter, then the fluid is converged into a process pipeline of a manifold outlet pipeline after passing through a stop valve, and is converged with other single-well produced fluid and then enters a downstream gathering and transportation pipeline through the outlet of the device;
the computer control device stores the number of wells of each inlet connecting single well and the corresponding valve position of each single well and the parameters required by multiphase flow measurement without each single well, the computer control device receives the instruction sent by the remote control system and then sends the corresponding valve position parameters to the multi-way valve, the multi-way valve automatically switches the valve positions after receiving the corresponding instruction information, the multi-way valve sends position feedback information after switching in place, and the computer control device receives the position feedback information sent by the multi-way valve and compares and confirms the position feedback information with the sent instruction, calls the corresponding single well parameters and starts the oil and gas well yield measurement;
the computer control device collects signals of the temperature transmitter, the pressure transmitter, the differential pressure transmitter, the gas-liquid ratio sensor and the phase fraction sensor in real time, obtains flow, water content, gas content and pressure and temperature data of natural gas, crude oil and water in production fluid of the oil-gas well after calculating by using a special mathematical model, and uploads the data to the remote control system through the wireless transmission system for final production management evaluation.
6. The control method of claim 5, wherein the phase siphon overflow pipe of the control method is combined with a valve, and when the sampler prepares less low gas-containing liquid sample, all the liquid sample flows downstream through the valve; when the low-gas-content liquid samples prepared by the sampler are more, except that part of the liquid samples flow into the downstream through the valve, the rest liquid samples return to a central pipe in the sampler through the siphon overflow pipe and flow into a downstream process pipeline, the opening degree of the valve is adjusted to control the flow area ratio of the valve and the siphon overflow pipe, and the speed of the fluid in the phase fraction sensor is adjusted to adapt to different working conditions.
7. The control method as set forth in claim 5, wherein the venturi flow meter on the measuring line of the control method and the gas-liquid ratio sensor are configured such that the gas-liquid ratio sensor is integrated in a throat portion of the venturi flow meter.
8. The control method according to claim 5, wherein a stop valve of the control method is installed between outlet manifolds of the multiphase flowmeter, the stop valve is in an open position during normal production and metering, when the multiphase flowmeter needs maintenance, the multiphase flowmeter can be isolated by switching a valve position of the multi-way valve to a maintenance channel and then closing the stop valve, and the maintenance of the multiphase flowmeter is realized on the premise of not influencing normal production of a single well.
9. A petroleum oil gas gathering and transportation metering system is characterized in that the automatic well-reversing and oil-gas-water multiphase flow metering system of any one of claims 1 to 4 is used in the petroleum oil gas gathering and transportation metering system.
10. A chemical oil gas gathering and transportation metering system is characterized in that the automatic well dumping and oil gas water multiphase flow metering system of any one of claims 1 to 4 is used in the chemical oil gas gathering and transportation metering system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011464419.4A CN112459771A (en) | 2020-12-14 | 2020-12-14 | Automatic well reversing and oil-gas-water multiphase flow metering system, control method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011464419.4A CN112459771A (en) | 2020-12-14 | 2020-12-14 | Automatic well reversing and oil-gas-water multiphase flow metering system, control method and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112459771A true CN112459771A (en) | 2021-03-09 |
Family
ID=74803963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011464419.4A Pending CN112459771A (en) | 2020-12-14 | 2020-12-14 | Automatic well reversing and oil-gas-water multiphase flow metering system, control method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112459771A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585982A (en) * | 2021-08-27 | 2021-11-02 | 重庆力劲机械有限公司 | Oil pipe with pressure flow and temperature detection functions |
-
2020
- 2020-12-14 CN CN202011464419.4A patent/CN112459771A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585982A (en) * | 2021-08-27 | 2021-11-02 | 重庆力劲机械有限公司 | Oil pipe with pressure flow and temperature detection functions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2428558C2 (en) | Production tree with flowmetre installed in it | |
| WO2004102131A1 (en) | Three-phase flow regulating means for oil, gas and water, three-phase flow measuring apparatus for oil, gas and water and measuring method thereof | |
| CN107299657A (en) | Public supply mains pressure controlling movable type system and the ductwork pressure regulation and control method realized using the system | |
| CN112459771A (en) | Automatic well reversing and oil-gas-water multiphase flow metering system, control method and application | |
| CN105937375B (en) | The underbalance well drilling plant and method of biphase gas and liquid flow flow segmentation real-time monitoring | |
| CN214403545U (en) | Automatic well-reversing and oil-gas-water multiphase flow metering device | |
| CN114575797A (en) | Automatic pressure regulating system of wellhead jet pump and using method thereof | |
| CN219316935U (en) | Modular combined device for skid-mounted coal bed gas wellhead | |
| CN113585982B (en) | Oil pipe with pressure flow and temperature detection functions | |
| CN212083155U (en) | Well cluster type self-selecting well and gas-liquid two-phase metering device | |
| CN210422568U (en) | Gas field cluster well site rotation metering gas collection device and system | |
| CN211524791U (en) | Gas-liquid equal-dryness constant-flow intelligent regulation and control device | |
| CN112903521A (en) | Well cluster type self-selecting well and gas-liquid two-phase metering device | |
| CN218716724U (en) | High-efficient metering device in well site | |
| CN115388332B (en) | Modular combined device for skid-mounted coal bed gas wellhead | |
| CN201057042Y (en) | Mounting device of gas drilling and logging sensor | |
| CN218407411U (en) | Single well flow metering system for oil and gas field production | |
| CN218865451U (en) | Stack surrounding type oil well multiphase flow physical simulation experiment device | |
| CN114458282B (en) | Underground gas-dividing wellhead gas measuring device for oil well | |
| CN220267667U (en) | Straight-through throttle manifold pry for fine pressure control drilling system | |
| CN217080383U (en) | Vertical automatic throttle manifold sled | |
| CN218720648U (en) | Integrated gathering and transportation treatment skid-mounted system for high-low pressure shale gas separate transportation | |
| CN217109104U (en) | Air-consumption-free condensate water discharge system | |
| CN216520953U (en) | Thing networking type thickened oil pipeline sand filtering device | |
| CN107130954B (en) | Two-phase separation measurement skid-mounted device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |