CN219528989U - Automatic metering and sand removing system for oil well - Google Patents
Automatic metering and sand removing system for oil well Download PDFInfo
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- CN219528989U CN219528989U CN202320378174.6U CN202320378174U CN219528989U CN 219528989 U CN219528989 U CN 219528989U CN 202320378174 U CN202320378174 U CN 202320378174U CN 219528989 U CN219528989 U CN 219528989U
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Abstract
The utility model provides an automatic metering sand removal system for an oil well, which comprises a sand setting separator with a built-in separation device and a cyclone sand removal tank with a built-in hydrocyclone, wherein a hydraulic booster pump is connected to a water source liquid inlet pipeline of a site water doping source, an outlet pipeline of the hydraulic booster pump is respectively connected with a vertical sand setting separator and the cyclone sand removal tank, a liquid inlet of the vertical sand setting separator is connected with a wellhead mixing liquid inlet pipeline and a water doping pipeline through a hydraulic lifter, the top of the vertical sand setting separator is connected with an exhaust pipeline, the upper end of a side wall is connected with a liquid discharge pipeline, the bottom of the side wall is connected with a sand setting outlet pipeline, the bottom of the cyclone sand removal tank is connected with a liquid discharge pipeline through an internal hydraulic lifter, and the bottom of the cyclone sand removal tank is connected with a separation device in the vertical sand setting separator. The utility model has the advantages of high automation degree of sand removal, high sand removal efficiency, clean sand discharge and wide application range.
Description
Technical Field
The utility model relates to the field of oilfield sand removal, in particular to an automatic metering sand removal system for an oil well.
Background
The oil field development enters the later stage, sand production occurs after the oil well is used for a period of time, and the harmful parts of sand production or solid impurities in the oil and gas well comprise mechanical damage and abrasion to oil nozzles, pipelines, control valves, pumps and other equipment; decreasing the throughput capacity of the apparatus due to the decreased fluid residence time resulting from the decreased separator effective capacity; an effective solution to this problem is to effectively remove all solid impurities from the multiphase fluid upstream or downstream of the choke, and therefore a desanding device is often required to desanding the produced fluid of the well, for example, due to local plugging of the pipeline and high environmental emissions costs.
The traditional oil well sand removal equipment has the advantages of larger separation granularity, high oil content of separated sand, no metering of separated gas-liquid phases and low automation degree of the equipment.
Disclosure of Invention
The utility model aims to solve the technical problem of overcoming the defects of the traditional sand removing equipment and providing the sand removing device which has the advantages of high sand removing efficiency, clean sand discharging, high automation degree and safety and reliability.
Based on the problems, the technical scheme provided by the utility model is that the automatic metering and sand removing system for the oil well comprises a sand setting separator with a built-in separation device and a cyclone sand removing tank with a built-in hydrocyclone, wherein a hydraulic booster pump is connected to a water source incoming pipeline on site, an outlet pipeline of the hydraulic booster pump is respectively connected with a vertical sand setting separator and the cyclone sand removing tank, a liquid inlet of the vertical sand setting separator is connected with a wellhead mixing incoming pipeline and a water mixing pipeline through an external hydraulic lifter, the top of the vertical sand setting separator is connected with an exhaust pipeline, the upper end of a side wall is connected with a liquid discharge pipeline, one side of the vertical sand setting separator close to the bottom of the vertical sand setting separator is connected with a sand setting outlet pipeline and a water mixing pipeline, the inlet of the cyclone sand removing tank is connected with a liquid discharge pipeline through an internal hydraulic lifter, and the side wall close to the bottom of the cyclone sand removing tank is provided with a separation device in the vertical sand setting separator.
The exhaust pipeline of the vertical sand setting separator is provided with a self-operated regulating valve which can collect pipeline pressure in front of the valve, control external air delivery quantity and maintain pressure in the vertical sand setting separator, and the rear side of the self-operated regulating valve on the exhaust pipeline is provided with a first flow metering device.
The liquid discharge pipeline of the vertical sand setting separator is provided with a closed-loop linkage adjusting system consisting of a first liquid level detecting device and an electric adjusting valve, and the rear end of the electric adjusting valve on the liquid discharge pipeline is also provided with a second flow metering device.
The second liquid level detection device is arranged on the side wall of the cyclone sand removal tank, a sand level detector is arranged at the lowest position of the side wall of the cyclone sand removal tank, which is close to the second liquid level detection device, and an electric cut-off valve controlled to be opened and closed by a controller is arranged at the bottom of the cyclone sand removal tank.
The water source with certain temperature from outside the well site is divided into two parts, one part enters the outer hydraulic lifter from the hydraulic booster pump and then enters the separating device, and the other part enters the inner hydraulic lifter from the hydraulic booster pump and then enters the rotational flow sand removing tank and the separating device.
Further, a third flow metering device is arranged on an inlet pipeline of the hydraulic booster pump.
The utility model has the advantages and beneficial effects that:
the vertical sand setting separator is connected with the pipeline of the cyclone sand removal tank to form a circulation process of gas, liquid and sand separation and sand washing, and the automatic control, adjustment and automatic metering functions are realized by using the regulating valve, the liquid level detection device, the flow detection device and the electric switch valve, the separation granularity is up to 17 mu m, the sand removal effect is excellent, the sand removal efficiency is high, and the application range is wide.
Drawings
Fig. 1 is a structural layout of the present utility model.
In the figure: 1. a hydraulic booster pump; 2. an external hydraulic lifter; 3. a vertical sand setting separator; 4. an internal hydraulic lifter; 5. a cyclone desanding tank; 6. a separation device; 7. a hydrocyclone; 8. a self-operated regulating valve; 9. an electric control valve; 10. a first flow metering device; 11. a second flow metering device; 12. a third flow metering device; 13. a first liquid level detection device; 14. a second liquid level detection device; 15. a sand level detector; 16. an electric shut-off valve.
Detailed Description
The following detailed description of specific embodiments of the utility model refers to the accompanying drawings.
As shown in figure 1, an automatic metering sand removing system for an oil well comprises a vertical sand setting separator 3 with a built-in separation device 6 and a cyclone sand removing tank 5 with a built-in hydrocyclone 7, wherein the separation device 6 is an optional vortex director, a water source is doped on site, a hydraulic booster pump 1 is connected to a liquid pipeline, an outlet pipeline of the hydraulic booster pump 1 is respectively connected with the vertical sand setting separator 3 and the cyclone sand removing tank 5, a liquid inlet of the vertical sand setting separator 3 is connected with a liquid pipeline and a water doping pipeline through an outer hydraulic booster 2, the top of the vertical sand setting separator 3 is connected with an exhaust pipeline, the upper end of a side wall is connected with a liquid drain pipeline, one side of the vertical sand setting separator 3 close to the bottom is connected with a sand setting outlet pipeline, an inlet of the cyclone sand removing tank 5 is connected with a sand setting outlet pipeline of the vertical sand setting separator 3 through an inner hydraulic booster 4, water is continuously fed into the cyclone sand removing tank 5, the running state of the cyclone sand removing tank 5 is kept, the inner hydraulic booster 4 is connected with the other water doping pipeline, and the sand setting outlet 4 is prevented from accumulating in the bottom of the vertical sand setting separator 4 when the vertical sand setting separator is moved to the bottom of the vertical sand setting separator 4.
The liquid discharge pipeline is connected at the top of the cyclone sand removal tank 5, the side close to the bottom is provided with the sand discharge pipeline, the liquid discharge pipeline is connected with the inlet of the separating device in the vertical sand setting separator 3, and the cyclone sand removal device 7 in the cyclone sand removal tank 5 can perform secondary separation and cleaning on liquid and sand phases by utilizing the centrifugal principle.
The liquid phase outer output port of the vertical sand setting separator 3 is relatively higher, and gas and liquid phase detection and adjustment sections are arranged from the liquid phase outlet to the top of the vertical sand setting separator 3. Wherein: the exhaust pipeline of the vertical sand setting separator 3 is provided with a self-operated regulating valve 8 and a first flow metering device 10, wherein the self-operated regulating valve 8 can collect pipeline pressure before a valve, control external gas delivery quantity and maintain the pressure in the vertical sand setting separator 3, and the first flow metering device 10 can perform real-time metering on the quantity of natural gas flowing through the exhaust pipeline. The liquid discharge pipeline of the vertical sand setting separator 3 is provided with a closed loop linkage adjusting system consisting of a first liquid level detecting device 13 and an electric adjusting valve 9, when the first liquid level detecting device 13 detects that the liquid level in the vertical sand setting separator 3 reaches a certain height, a liquid level signal is sent to a controller, the opening degree of the electric adjusting valve 9 is adjusted by the controller, and the liquid level height set in the vertical sand setting separator 3 is maintained by adjusting the liquid amount of external transfusion.
The rear end of the electric regulating valve 9 on the liquid discharge pipeline is also provided with a second flow metering device 11, so that the amount of the oil-water mixture flowing through the liquid discharge pipeline can be metered in real time.
The side wall of the cyclone sand removal tank 5 is provided with a second liquid level detection device 14, the side wall of the cyclone sand removal tank 5 is provided with a sand level detector 15 near the lowest position of the second liquid level detection device 14, and the side of the cyclone sand removal tank 5 is provided with an electric cut-off valve 16 which is controlled to be opened and closed by a controller. When sand in the cyclone sand removal tank 5 is accumulated to a certain height, a signal sent by the sand level detector 15 is sent to the controller, the controller controls the electric cut-off valve 16 to be opened, meanwhile, the sand in the cyclone sand removal tank 5 can be sucked into the sand discharge pipe reversely under the action of pressure in the tank, and the sand is discharged through the electric cut-off valve 16, so that the sand cannot be accumulated at the bottom of the cyclone sand removal tank 5. When the liquid level in the cyclone sand removal tank 5 drops to a certain height, the second liquid level detection device 14 sends a signal to the controller, the controller controls the electric cut-off valve 16 to be closed, sand removal is finished, and redundant liquid cannot be discharged.
The controller can select an S7-300 type PLC and can be installed on the site or in a duty room in a control cabinet with a protective shell. The first liquid level detection device 13, the second liquid level detection device 14 and the sand level detector 15 are connected to a controller through laying wires and forming connection with the oil well automatic metering sand removal device, and after the controller receives the signals, the controller analyzes the data to make judgment and output control signals to control the action of the electric valve.
The water source of mixing water that has certain temperature that well site outside comes divides into two, and one of them is got into outer hydraulic lift ware 2 by hydraulic booster pump 1, reentrant vertical sand setting separator 3 in separator 6, and another is got into interior hydraulic lift ware 4 from hydraulic booster pump 1, reentrant whirl sand removal jar, reentrant vertical sand setting separator 3 in separator 6 at last, and two water mixing pipelines carry out mixing preheating to whole sand removal system. The third flow metering device 12 is arranged on the inlet pipeline of the hydraulic booster pump 1, the third flow metering device 12 records and displays daily water mixing amount, and when the inlet pipeline, the outlet pipeline and the return pipeline of the hydraulic booster pump 1 are all penetrated by hot water, the liquid inlet valve of the vertical separator can be temporarily closed.
The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.
Claims (6)
1. The utility model provides an automatic measurement degritting system of oil well, includes the cyclone degritting jar of built-in separator's sand setting separator and built-in hydrocyclone, its characterized in that: the hydraulic booster pump is connected to the water-doped water source liquid inlet pipeline, the hydraulic booster pump outlet pipeline is connected with the vertical sand setting separator and the rotational flow sand removal tank respectively, the liquid inlet of the vertical sand setting separator is connected with the wellhead mixed liquid inlet pipeline and the water-doped pipeline through the outer hydraulic lifter, the top of the vertical sand setting separator is connected with the exhaust pipeline, the upper end of the side wall is connected with the liquid discharge pipeline, the sand setting outlet pipeline is connected to one side of the vertical sand setting separator close to the bottom, the inlet of the rotational flow sand removal tank is connected with the sand setting outlet pipeline and the water-doped pipeline of the vertical sand setting separator through the inner hydraulic lifter, the top of the rotational flow sand removal tank is connected with the liquid discharge pipeline, the side wall close to the bottom of the rotational flow sand removal tank is provided with the sand discharge pipeline, and the liquid discharge pipeline is connected with the separation device in the vertical sand setting separator.
2. The automatic metering and desanding system of an oil well of claim 1, wherein: the exhaust pipeline of the vertical sand setting separator is provided with a self-operated regulating valve which can collect pipeline pressure in front of the valve, control external air delivery quantity and maintain pressure in the vertical sand setting separator, and the rear side of the self-operated regulating valve on the exhaust pipeline is provided with a first flow metering device.
3. The automatic metering and desanding system of an oil well of claim 2, wherein: the liquid discharge pipeline of the vertical sand setting separator is provided with a closed-loop linkage adjusting system consisting of a first liquid level detecting device and an electric adjusting valve, and the rear end of the electric adjusting valve on the liquid discharge pipeline is also provided with a second flow metering device.
4. The automatic metering and desanding system of an oil well of claim 1, wherein: the second liquid level detection device is arranged on the side wall of the cyclone sand removal tank, a sand level detector is arranged at the lowest position of the side wall of the cyclone sand removal tank, which is close to the second liquid level detection device, and an electric cut-off valve controlled to be opened and closed by a controller is arranged at the bottom of the cyclone sand removal tank.
5. The automatic metering and desanding system of an oil well of claim 1, wherein: the water source of mixing water from outside the well site is divided into two, one of which enters the outer hydraulic lifter from the hydraulic booster pump and then enters the separating device, and the other enters the inner hydraulic lifter from the hydraulic booster pump and then enters the rotational flow sand removing tank and the separating device.
6. The automatic metering and desanding system of an oil well of claim 5, wherein: and a third flow metering device is arranged on an inlet pipeline of the hydraulic booster pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320378174.6U CN219528989U (en) | 2023-03-03 | 2023-03-03 | Automatic metering and sand removing system for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320378174.6U CN219528989U (en) | 2023-03-03 | 2023-03-03 | Automatic metering and sand removing system for oil well |
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| CN219528989U true CN219528989U (en) | 2023-08-15 |
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| CN202320378174.6U Active CN219528989U (en) | 2023-03-03 | 2023-03-03 | Automatic metering and sand removing system for oil well |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116892384A (en) * | 2023-09-11 | 2023-10-17 | 四川凌耘建科技有限公司 | High-pressure sand remover and sand removing process thereof |
| CN116988775A (en) * | 2023-09-26 | 2023-11-03 | 中海油能源发展股份有限公司采油服务分公司 | Solid, liquid and gas three-phase metering skid-mounted device and metering method for well site of gas well |
-
2023
- 2023-03-03 CN CN202320378174.6U patent/CN219528989U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116892384A (en) * | 2023-09-11 | 2023-10-17 | 四川凌耘建科技有限公司 | High-pressure sand remover and sand removing process thereof |
| CN116892384B (en) * | 2023-09-11 | 2023-12-12 | 四川凌耘建科技有限公司 | High-pressure sand remover and sand removing process thereof |
| CN116988775A (en) * | 2023-09-26 | 2023-11-03 | 中海油能源发展股份有限公司采油服务分公司 | Solid, liquid and gas three-phase metering skid-mounted device and metering method for well site of gas well |
| CN116988775B (en) * | 2023-09-26 | 2024-01-09 | 中海油能源发展股份有限公司采油服务分公司 | Solid, liquid and gas three-phase metering skid-mounted device and metering method for well site of gas well |
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