Dynamic evaluation device for foam drainage effect of fluctuating pipeline

Abstract

The utility model belongs to the field of gas field gathering and transportation pipeline experiments, and particularly relates to a dynamic evaluation device for a fluctuating pipeline foam drainage effect. The utility model relates to a dynamic evaluation device for a fluctuating pipeline foam drainage effect. The dynamic evaluation device comprises a foam drainage system, and an air supply system, a liquid supply system and a liquid collection system which are respectively connected with the foam drainage system, the foam drainage system comprises a test pipeline; the test pipeline is formed by combining organic glass tubes at two ends and a flexible connecting tube in the middle; the sides, away from the flexible connecting pipe, of the organic glass pipes located at the two ends are both connected with pipeline fluctuation adjusting devices. The pipeline fluctuation adjusting device comprises an arc-shaped guide rail, a sliding block and a roller; the sliding blocks are slidably connected with the arc-shaped guide rails through rollers; and the organic glass tube is connected with the sliding block. According to the utility model, different pipeline trend angles can be adjusted through the pipeline fluctuation adjusting device so as to realize dynamic evaluation of foam drainage effects of different fluctuating pipelines.

Description

Technical Field

[0001] The utility model belongs to the field of gas field gathering and transportation pipeline experiments, and in particular relates to a dynamic evaluation device for the foam drainage effect of an undulating pipeline. Background Art

[0002] The foam drainage and gas production process is one of the drainage and gas production technologies in gas fields. It is widely used in gas fields due to its good economic benefits, simple construction and good drainage effect. With the continuous maturity of foam drainage technology, foam drainage technology has also been applied in gathering and transportation pipelines. However, due to the large and undulating terrain in northern Shaanxi, higher requirements are placed on the foaming height and foam stability of pipeline foaming agents. At present, conventional foaming agent evaluation uses the ROSE-Miles method for static evaluation, with less dynamic evaluation, and only dynamic evaluation is performed on vertical pipe sections. Therefore, it is necessary to develop a dynamic evaluation device for foam drainage of gathering and transportation pipelines with multiple undulating angles to make the dynamic evaluation results of foam closer to the actual situation on site. Summary of the invention

[0003] The utility model aims to solve the above problems and proposes a dynamic evaluation device for the foam drainage effect of an undulating pipeline.

[0004] The technical solution of the utility model is:

[0005] A dynamic evaluation device for the foam drainage effect of an undulating pipeline comprises a foam drainage system and an air supply system, a liquid supply system and a liquid collection system respectively connected to the foam drainage system; the foam drainage system comprises a test pipeline; the test pipeline is composed of organic glass tubes at both ends and a flexible connecting tube in the middle; the organic glass tubes at both ends are connected to a pipeline fluctuation regulating device on one side away from the flexible connecting tube; the pipeline fluctuation regulating device comprises an arc guide rail, a slider and a roller; the slider is slidably connected to the arc guide rail through the roller; the organic glass tube is connected to the slider.

[0006] The organic glass tube comprises an inner tube and an outer tube which are overlapped with each other; an annulus is formed between the inner tube and the outer tube; and a water bath heating system is also included, and the water bath heating system is connected to the annulus.

[0007] Among them, the air supply system includes an air supply pipeline, the inlet end of the air supply pipeline is connected to the air compressor, and the outlet end of the air supply pipeline is connected to the inner pipe; a flow meter and a pressure gauge are also provided between the inlet end and the outlet end of the air supply pipeline.

[0008] Wherein, the liquid supply system comprises a dosing pump, which is connected to the inner tube through a filling pipeline; the dosing pump is a dosing pump with a built-in bubble to discharge liquid.

[0009] Wherein, the liquid collecting system comprises a metering device, one end of the inlet end of the metering device is connected to the outlet end of the inner tube, and the outlet end of the metering device is connected to a first liquid discharge pipe; the metering device is also provided with a defoaming agent addition port.

[0010] One end of the organic glass tube is connected to the slider of the pipeline heave regulating device through a flange, and the other end is connected to the flexible connecting pipe through a flange.

[0011] Wherein, the flexible connecting pipe is also provided with a lifting device, and the lifting device is a pipeline support vehicle.

[0012] Wherein, the water bath heating system comprises a water bath box; the water bath box is connected to the annulus through a water bath pipe; a thermometer is arranged on the water bath pipe.

[0013] Wherein, it also includes a second liquid discharge pipe connected with the inner pipe.

[0014] Wherein, the metering device is a measuring cylinder.

[0015] The technical effects of the utility model are:

[0016] The experimental pipeline of the utility model is composed of organic glass tubes at both ends and a flexible connecting tube in the middle. Both ends of the organic glass tube are connected with pipeline fluctuation regulating devices. Different pipeline direction angles can be adjusted by the pipeline fluctuation regulating device to realize dynamic evaluation of the foam drainage effects of pipelines with different fluctuations; more preferably, the ambient temperature of the foam drainage liquid is adjusted by a water bath heating system, and the pressure is adjusted by an air supply system, so that the foam dynamic evaluation result is closer to the actual situation on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model of the dynamic evaluation device for the undulating pipeline bubble drainage effect.

[0018] Figure 2 Schematic diagram of the structure of the plexiglass tube.

[0019] Figure 3 It is a structural schematic diagram of the pipeline fluctuation regulating device.

[0020] Figure numerals: 1. air compressor; 2. first gate valve; 3. flow meter; 4. pressure gauge; 5. second gate valve; 6. water bath; 7. thermometer; 8. arc guide rail; 9. roller; 10. third gate valve; 11. metering device; 12. defoaming agent inlet; 13. dosing pump; 14. plexiglass tube; 15. flange; 16. flexible connecting pipe; 17. pipe support vehicle; 18. fourth gate valve; 20. first drain pipe; 21. second drain pipe. DETAILED DESCRIPTION

[0021] Example 1

[0022] A dynamic evaluation device for the foam drainage effect of an undulating pipeline comprises a foam drainage system and an air supply system, a liquid supply system and a liquid collection system respectively connected to the foam drainage system; the foam drainage system comprises a test pipeline; the test pipeline is composed of organic glass tubes 14 at both ends and a flexible connecting tube 16 in the middle; the organic glass tubes 14 at both ends are connected to a pipeline fluctuation regulating device on one side away from the flexible connecting tube 16; the pipeline fluctuation regulating device comprises an arc guide rail 8, a slider and a roller 9; the slider is slidably connected to the arc guide rail 8 through the roller 9; the organic glass tube 14 is connected to the slider.

[0023] The specific implementation process of this embodiment is as follows:

[0024] The utility model adjusts the experimental pipeline fluctuation height through the pipeline fluctuation adjusting device, can realize the simulation of different fluctuations such as upward inclined pipe, downward inclined pipe and V-shaped pipe, and further carry out the evaluation of the dynamic effect of the foaming agent in pipelines with different fluctuations.

[0025] Example 2

[0026] On the basis of Example 1, it also includes:

[0027] The organic glass tube 14 includes an inner tube and an outer tube which are stacked on each other; an annulus is formed between the inner tube and the outer tube; and a water bath heating system is also included, and the water bath heating system is connected to the annulus. The water bath heating system includes a water bath box 6; the water bath box 6 is connected to the annulus through a water bath pipe; a thermometer 7 is provided on the water bath pipe. Liquid water is injected from the end of the organic glass tube 14 into the annulus between the inner tube and the outer tube through the water bath box 6 to keep the inner tube at a constant temperature, and the dynamic performance evaluation of the bubble drainage at different temperatures is achieved through the adjustment of the water bath box 6.

[0028] Example 3

[0029] On the basis of Example 2, the invention further includes:

[0030] The air supply system includes an air supply pipeline, the inlet end of the air supply pipeline is connected to the air compressor 1, and the outlet end of the air supply pipeline is connected to the inner tube; a flow meter 3 and a pressure gauge 4 are also provided between the inlet end and the outlet end of the air supply pipeline; the air supply system provides a power source for the inner tube, and compressed gas is injected into the inner tube through the air compressor 1. By adjusting the pressure supply of the air compressor 1, the liquid carrying amount of the gas on the foaming liquid under different gas pressure conditions is measured, thereby realizing the dynamic performance evaluation of the foaming agent under different pressures;

[0031] The liquid supply system includes a dosing pump 13, which is connected to the inner tube through a filling pipeline; the dosing pump 13 is a dosing pump 13 with a built-in bubble and liquid discharge;

[0032] The liquid collecting system comprises a metering device 11 , one inlet end of the metering device 11 is connected to the outlet end of the inner tube, and the outlet end of the metering device 11 is connected to a first liquid discharge pipe 20 ; the metering device 11 is also provided with a defoaming agent addition port 12 .

[0033] The specific implementation process of this embodiment is as follows:

[0034] The foaming liquid is added to the inner tube through the dosing pump 13, and the compressed gas is injected into the inner tube through the air supply system. After the compressed gas contacts the foaming liquid, the foaming liquid generates a large amount of low-density water-containing foam with the help of the stirring of the compressed gas, and enters the metering device 11 with the air flow; after the water-containing foam enters the metering device 11, the defoaming agent is injected through the defoaming agent addition port 12, so that the water-containing foam is liquefied and then metered, so that the liquid amount of the foaming agent and the defoaming agent can be read, thereby obtaining the liquid carrying amount, and further evaluating the dynamic effect of the foaming agent.

[0035] Example 4

[0036] On the basis of Example 3, the invention further includes:

[0037] One end of the organic glass tube 14 is connected to the slider of the pipeline heave adjustment device through a flange 15, and the other end is connected to the flexible connecting pipe 16 through the flange 15. The flexible connecting pipe 16 is also provided with a lifting device, which is a pipeline support vehicle 17.

[0038] Example 5

[0039] On the basis of Example 4, it also includes: a second liquid discharge pipe 21 connected to the inner tube, which is used to discharge the remaining water-containing foam in the inner tube after the experiment is completed.

[0040] Example 6

[0041] On the basis of Example 5, it also includes: the metering device 11 is a measuring cylinder; wherein the air supply pipeline is provided with a first gate valve 2 and a second gate valve 5, the first liquid discharge pipe 20 is provided with a third gate valve 10, and the second liquid discharge pipe 21 is provided with a fourth gate valve 18.

Claims

1. A dynamic evaluation device for the foam drainage effect of an undulating pipeline, comprising a foam drainage system and an air supply system, a liquid supply system and a liquid collection system respectively connected to the foam drainage system; characterized in that: The foam discharge system comprises a test pipeline; the test pipeline is composed of organic glass tubes (14) at both ends and a flexible connecting tube (16) in the middle; the organic glass tubes (14) at both ends are connected to a pipeline fluctuation adjustment device on the side away from the flexible connecting tube (16); the pipeline fluctuation adjustment device comprises an arc guide rail (8), a slider and a roller (9); the slider is slidably connected to the arc guide rail (8) via the roller (9); and the organic glass tube (14) is connected to the slider.

2. The dynamic evaluation device for the bubble drainage effect of an undulating pipeline according to claim 1 is characterized in that: The organic glass tube (14) comprises an inner tube and an outer tube which are overlapped with each other; an annulus is formed between the inner tube and the outer tube; and a water bath heating system is also included, wherein the water bath heating system is connected to the annulus.

3. The dynamic evaluation device for the bubble drainage effect of an undulating pipeline according to claim 2 is characterized in that: The air supply system comprises an air supply pipeline, the inlet end of the air supply pipeline is connected to the air compressor (1), and the outlet end of the air supply pipeline is connected to the inner pipe; a flow meter (3) and a pressure gauge (4) are also provided between the inlet end and the outlet end of the air supply pipeline.

4. The dynamic evaluation device for the bubble drainage effect of an undulating pipeline according to claim 3 is characterized in that: The liquid supply system comprises a dosing pump, and the dosing pump (13) is connected to the inner tube via a filling pipeline; the dosing pump (13) is a dosing pump (13) with a built-in bubble discharger.

5. The dynamic evaluation device for the bubble drainage effect of an undulating pipeline according to claim 4 is characterized in that: The liquid collecting system comprises a metering device (11), one end of the inlet of the metering device (11) is connected to the outlet of the inner tube, and the outlet of the metering device (11) is connected to a first liquid discharge pipe (20); the metering device (11) is also provided with a defoaming agent addition port (12).

6. The dynamic evaluation device for the bubble drainage effect of an undulating pipeline according to claim 5, characterized in that: One end of the organic glass tube (14) is connected to the slider of the pipeline heave regulating device through a flange (15), and the other end is connected to the flexible connecting pipe (16) through the flange (15).

7. The dynamic evaluation device for the bubble drainage effect of an undulating pipeline according to claim 6, characterized in that: The flexible connecting pipe (16) is also provided with a lifting device, and the lifting device is a pipeline support vehicle (17).

8. The dynamic evaluation device for the bubble drainage effect of an undulating pipeline according to claim 7, characterized in that: The water bath heating system comprises a water bath box (6); the water bath box (6) is connected to the annulus through a water bath pipe; a thermometer (7) is provided on the water bath pipe.

9. The dynamic evaluation device for the bubble drainage effect of an undulating pipeline according to claim 8, characterized in that: It also includes a second liquid discharge pipe (21) connected to the inner pipe.

10. The dynamic evaluation device for the bubble drainage effect of an undulating pipeline according to claim 9, characterized in that: The metering device (11) is a measuring cylinder.

Images