CN114459783A

CN114459783A - Online testing device and method for desander

Info

Publication number: CN114459783A
Application number: CN202011240594.5A
Authority: CN
Inventors: 王勇; 刘蔷; 计维安; 吴宇; 宋彬; 闪从新; 张春阳; 李林峰; 戴万能; 赵婷
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2022-05-10

Abstract

The application discloses a desander online testing device and a method, and belongs to the field of oil and gas field development. The online testing device of the sand remover comprises a sand adding assembly and a testing assembly which are arranged on a testing pipeline. The sand adding assembly comprises a sand storage liquid tank, a sand adding pump and a sand adding valve, the sand adding valve is communicated with the test pipeline, a first end of the sand adding pump is communicated with a first end of the sand adding valve, and a second end of the sand adding pump is communicated with the sand storage liquid tank. The test assembly is used for acquiring the desanding performance data of the desander according to the multiphase flow gas output by the test pipeline, and the multiphase flow gas is subjected to the sand adding and liquid adding treatment of the sand adding assembly. The application provides a desander on-line measuring device can realize the desander capability test under the different sand content liquid content operating mode, simplifies device structure and test procedure, and convenient to use and test result are more accurate.

Description

Online testing device and method for desander

Technical Field

The application relates to the field of oil and gas field development, in particular to a sand remover online testing device and method.

Background

In the oil and gas field development process, liquids such as gravel and fracturing fluid are produced along with gas, will cause a series of problems including surface equipment blocking, corrosion, natural gas leakage, polluted environment and the like, so need to use the desander to get rid of gravel and liquid in the pipeline.

The sand remover is a core device for removing quartz sand, ceramsite and formation debris which are manually added, and the operation effect of the sand remover is related to the safe and stable operation of downstream equipment. When the desanding effect of the desander is poor, a safety risk is caused to the downstream. Therefore, it is necessary to evaluate the operational effect of the sand remover.

At present, the related technology for judging the performance of the desander is mainly an off-line sampling analysis method, which is to analyze the removed gravel after the desander is desanded. However, the inventors found that at least the following problems exist in the related art:

the method for judging the performance of the desander in the related art can only be developed based on the specific working condition when the desander runs, so that the measured desanding performance data is only the test data under the specific working condition.

Disclosure of Invention

The application provides an online testing device and method for a desander, which can solve the problem of how to test and evaluate the performance of the desander under different working conditions. Specifically, the method comprises the following technical scheme:

on the one hand, this application provides a desander on-line testing device, desander on-line testing device includes: the sand adding assembly and the testing assembly are sequentially arranged on the testing pipeline;

the sand adding assembly comprises a sand storage liquid tank, a sand adding pump and a sand adding valve, the sand adding valve is communicated with the test pipeline, a first end of the sand adding pump is communicated with a first end of the sand adding valve, and a second end of the sand adding pump is communicated with the sand storage liquid tank;

and the test assembly is used for acquiring the desanding performance data of the desander according to the multiphase flow gas output by the test pipeline, and the multiphase flow gas is subjected to the sand adding and liquid adding treatment of the sand adding assembly.

On the other hand, the application also provides an online testing method for the performance of the desander, and by adopting the online testing device for the performance of the desander, the online testing method for the performance of the desander comprises the following steps:

operating the desander;

opening a sand adding valve, and driving a sand adding pump to pump the self-defined sand liquid in the sand storage liquid tank into a test pipeline, wherein the self-defined sand liquid is sand liquid with different proportions set according to test requirements;

and starting the test component to obtain the sand removing performance data of the sand remover and determining the sand removing performance of the sand remover.

The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects:

the application provides a desander on-line testing device and method, set up and add sand subassembly and test assembly and carry out the on-line test to the desander degritting performance, through adding the sand pump with the sand liquid of storing up in the sand liquid storage pot into the test tube way through the valve pump that adds sand, can realize carrying out the desander capability test under the operating mode of different sand content volume, the operational effect of comprehensive evaluation desander, for mastering in labour desander operation conditions, newly-built desander's selection and improvement provide the basis.

Description of the drawings:

in order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an online testing device for a desander, provided by an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a sanding assembly according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of another sanding assembly provided by embodiments of the present application;

FIG. 4 is a schematic structural diagram of another online desander test device provided by the embodiment of the application;

FIG. 5 is a schematic structural diagram of another online desander test device provided by the embodiment of the application;

FIG. 6 is a schematic structural diagram of another online desander test device provided by the embodiment of the application;

FIG. 7 is a schematic structural diagram of a test assembly according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of another test assembly provided in the embodiments of the present application;

FIG. 9 is a schematic structural diagram of another testing assembly provided in the embodiments of the present application;

fig. 10 is a schematic structural diagram of a sand intrusion detection device provided in an embodiment of the present application;

fig. 11 is a schematic structural diagram of a non-invasive sand measuring device provided in an embodiment of the present application;

FIG. 12 is a schematic structural diagram of another online desander test device provided by the embodiment of the application;

FIG. 13 is a flow chart of a method for online testing of the performance of a desander provided by an embodiment of the present application;

FIG. 14 is a flow chart of another method for online testing of the performance of a desander, which is provided by the embodiment of the application;

FIG. 15 is a flow chart of another method for online testing of the performance of a desander provided by an embodiment of the present application;

FIG. 16 is a flow chart of another method for online testing of the performance of a desander provided by the embodiment of the application;

FIG. 17 is a flow chart of another method for online testing of the performance of a desander provided by an embodiment of the present application;

FIG. 18 is a flow chart of another online desander performance testing method provided by the embodiment of the application.

In the following, reference numerals in the drawings are explained:

1-a desander; 2-gravel;

01-testing the pipeline;

02-a main pipeline;

10-a sand feeding assembly:

11-sand storage liquid storage tank: 111-sand adding tank; 112-liquid adding tank;

12-a sand pump;

13-a sand valve;

14-adding sand and filling opening;

15-a sand flow meter;

16-a separator;

17-a drainage return port;

18-a sand discharge return port;

20-testing the assembly:

21-a first intrusive sand measurement device: 211-a sampling probe; 212-a trap; 213-a drying tube; 214-dry gas flow meter; 215-ball valve; 216-a stop valve; 217-needle valve; 218-pressure gauge;

22-a second intrusive sand measurement device;

23-a first non-intrusive sand measurement device: 231-an acoustic sensor; 232-sensor mounting strap;

24-a second non-intrusive sand measuring device;

25-differential pressure gauge;

30-airflow regulating assembly:

31-a voltage regulator;

32-a current stabilizer;

33-a gas flow meter;

34-gas pressure gauge;

35-gas thermometer;

41. 42, 43, 44-valves;

51-a desander first outer end; 52-a second external end of the desander; 53-desander first inner end; 54-desander second inner end.

Detailed Description

Unless defined otherwise, all technical terms used in the examples of the present application have the same meaning as commonly understood by one of ordinary skill in the art.

In the embodiments of the present application, the reference to "front" and "rear" is based on the gas flow direction arrows shown in the drawings, the gas flow direction is front, and the gas flow direction is rear; in addition, "first end" and "second end" are opposite ends.

In the present application, it is to be understood that the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Fig. 1 shows a schematic structural view of a desander in-line testing apparatus according to an exemplary embodiment of the present application, which includes a sanding assembly 10 and a testing assembly 20 sequentially disposed on a test pipe 01.

The sand adding assembly 10 comprises a sand storage liquid tank 11, a sand adding pump 12 and a sand adding valve 13, the sand adding valve 13 is communicated with the test pipeline 01, a first end of the sand adding pump 12 is communicated with a first end of the sand adding valve 13, and a second end of the sand adding pump 12 is communicated with the sand storage liquid tank 11. The sanding assembly 10 is used to perform sanding and filling treatment steps in a desander test operation. The sand storage liquid storage tank 11 is used for storing gravel and liquid which are filled into the test pipeline 01, the sand adding pump 12 is used for providing sand adding power for the sand storage liquid storage tank 11, and the sand adding valve 13 is used for controlling the opening and closing of the sand adding assembly 10.

And the test component 20 is used for acquiring the sand removal performance data of the sand remover 1 according to the multiphase flow gas output by the test pipeline 01, and the multiphase flow gas is subjected to sand adding and liquid adding treatment by the sand adding component 10. Illustratively, the test assembly 20 is disposed at the rear end of the sanding assembly 10 around the desander 1. The first outer end 51 of the desander is communicated with the front end of the test pipeline 01, the second outer end 52 of the desander is communicated with the rear end of the test pipeline 01, the first inner end 53 of the desander is communicated with the air outlet end of the desander 1, and the second inner end 54 of the desander is communicated with the air inlet end of the desander. The second outer end 52, the second inner end 54, the desander 1, the first inner end 53 and the first outer end 51 are sequentially communicated from front to back to form a pipeline passage, so that the gas flowing through the desander 1 passes through, and at the moment, the gas flowing route is as follows: the rear end of the test pipe 01, the second outer end 52 of the desander, the second inner end 54 of the desander, the desander 1, the first inner end 53 of the desander, the first outer end 51 of the desander and the front end of the test pipe 01.

The working principle of the online testing device for the desander provided by the embodiment of the application is as follows: operating the desander 1; the method comprises the following steps that a tester controls to open a sand adding valve 13, a sand adding pump 12 provides power to pump gravel and liquid stored in a sand storage liquid storage tank 11 into a test pipeline 01, the liquid wraps the gravel and is filled into the test pipeline 01, and after sand liquid in a preset proportion enters the test pipeline 01, the tester controls to close the sand adding valve 13 to finish a sand adding and liquid adding treatment step; the gas in the test pipeline 01 is subjected to sand adding and liquid adding treatment by the sand adding assembly 10 and then flows through the test assembly 20, and the gas acquires performance data of the desander 1 before and after desanding by the test assembly, so that the test operation of the desander 1 is completed.

The online testing device for the desander runs for many times, controls the sand adding and liquid adding amount by opening and closing the sand adding valve 13, and can realize online testing of the performance of the desander under different sand adding and liquid adding amount working conditions. Therefore, in the desanding performance test of the desander under different desanding and liquid adding quantity working conditions, the step of disassembling and assembling the desander and adjusting the working conditions can be reduced by arranging the desanding assembly 10, the test efficiency is improved to a certain extent, and the working strength of testers is reduced.

During the actual use of the online desander test apparatus, there are several implementations of the sanding and filling step, and two alternatives of the sanding assembly 10 are shown below:

based on the optional embodiment of fig. 1, fig. 2 shows a schematic structural diagram of a sand adding assembly 10, the sand adding assembly 10 further includes a sand adding opening 14, the sand adding opening 14 is arranged above the sand storage liquid storage tank 11, and the bottom of the sand adding opening 14 is communicated with the sand storage liquid storage tank 11 through a valve. The sand adding opening 14 is used for adding sand liquid according to a preset proportion. Alternatively, sanding filler port 14 may be a bottom and top open vessel, such as a funnel.

The sand and liquid adding treatment steps of the online sand remover testing device comprising the sand and liquid adding port 14 are as follows: a tester injects sand liquid into the sand adding and filling port 14 according to a preset proportion, and opens a valve at the bottom of the sand adding and filling port 14 to control the sand liquid to enter the sand storage and storage tank 11; the tester controls to open the sand adding valve 13, the sand adding pump 12 provides power to enable gravel and liquid stored in the sand storage liquid storage tank 11 to be pumped into the test pipeline 01, and after sand liquid with a preset proportion enters the test pipeline 01, the tester controls to close the sand adding valve 13 to finish the sand adding and liquid adding processing step. For example, a tester injects gravel into the sanding filler hole 14 according to a first preset proportion; alternatively, the tester injects the liquid into the sanding filler hole 14 according to a second predetermined ratio.

In addition, a channel is formed by communicating the sand adding pump 12 and the sand storage liquid storage tank 11 through a pipeline, when a tester injects a sand-liquid mixture with a certain proportion into the sand adding filling opening 14 according to a third preset proportion, a valve at the bottom of the sand adding filling opening 14 is opened to control the sand-liquid mixture to enter the sand storage liquid storage tank 11, the sand adding pump 12 provides stirring power for the sand storage liquid storage tank 11, the injected sand-liquid mixture is stirred, the sand-liquid mixture is uniformly stirred, the liquid is wrapped with gravel and is injected into the test pipeline 01, and the influence on the sand removal performance test result of the sand remover caused by nonuniform sand-liquid mixing is reduced. As shown in fig. 2, the back flow may be formed by opening a valve between the sand storage tank 11 and the sand adding valve 13, so that the sand adding pump 12 may provide a stirring power to stir the gravel and the liquid in the sand storage tank 11.

Fig. 3 shows a schematic view of another sanding assembly 10, based on the alternative embodiment of fig. 1, the sanding assembly 10 including a sanding tank 111 and a priming tank 112. Wherein, the bottoms of the sand adding tank 111 and the liquid adding tank 112 are respectively communicated with the sand storage liquid storage tank 11 through valves. The sand tank 111 is used to store gravel and the liquid tank 112 is used to store liquid. The sand adding tank 111 and the liquid adding tank 112 can be tank-shaped containers, and can have the same capacity or different capacities, and testers can replace the containers with different shapes and capacities according to actual needs.

The sand and liquid adding treatment steps of the online desander testing device comprising the sand adding tank 111 and the liquid adding tank 112 are as follows: after the tester injects gravel and liquid into the sand adding tank 111 and the liquid adding tank 112 respectively at one time, the valve at the bottom of the sand adding tank 111 is controlled according to a first preset proportion to enable the gravel to enter the sand storage and liquid storage tank 11, or the valve at the bottom of the liquid adding tank 112 is controlled according to a second preset proportion to enable the liquid to enter the sand storage and liquid storage tank 11, or the valve at the bottom of the sand adding tank 111 and the liquid adding tank 112 is controlled according to a third preset proportion to enable the gravel and the liquid to flow through the valves respectively to enter the sand storage and liquid storage tank 11. In addition, a passage can be formed by communicating the sand adding pump 12 and the sand storage liquid storage tank 11 through a pipeline, so that the sand adding pump 12 provides stirring power for the sand storage liquid storage tank 11, and sand-liquid mixture entering the sand storage liquid storage tank 11 is uniformly stirred. As shown in fig. 3, the back flow may be formed by opening a valve between the sand storage tank 11 and the sand adding valve 13, so that the sand adding pump 12 may provide a stirring power to stir the gravel and the liquid in the sand storage tank 11.

In this application embodiment, set up and add liquid tank 111 and liquid tank 112 and can realize disposable filling gravel and liquid, reduce the step that the tester adds the sand liquid many times, through the steerable sand liquid filling amount of valve both, can realize the filling of different sand liquid amounts, for the desander degritting capability test provides the test condition of different sand content liquid levels, promptly, has satisfied the capability test of desander under different sand content liquid content operating modes.

Illustratively, the sanding assembly 10 may also include a sand flow meter 15. The first end of the sand liquid flow meter 15 is communicated with the second end of the sand adding valve 13, and the second end of the sand liquid flow meter 15 is communicated with the test pipeline 01. The sand-liquid flow meter 15 is used for controlling the filling amount of the sand liquid, and when the sand-liquid flow meter 15 displays that the preset proportion is reached, the tester controls to close the sand-adding valve 13 to finish the step of adding sand and liquid. The sand liquid flow meter 15 is matched with the sand adding valve 13, so that the accuracy of the sand liquid filling amount can be improved.

In the performance test operation of the desander, the removed sand liquid can cause certain abrasion to the gas pipeline, the desander and the sand measuring device; and because the sand liquid in the gas needs to be removed, the removed sand liquid is left inside the desander and the online desander testing device. When a plurality of times of test operation are needed, if the removal rate is high, the test operation needs to be suspended for a plurality of times to take out the sand removal liquid, and the repeated actions of the tester are more, so that the test operation efficiency is low and the operation steps are complicated. Therefore, the embodiment of the application provides another online testing device of the sand remover, which can realize sand liquid circulation.

Fig. 4 shows a schematic structural diagram of another online desander test device based on the alternative embodiment of fig. 1. The sand feeding assembly 10 of the online sand remover testing device further comprises a separator 16, wherein the separator 16 is arranged at the rear end of the testing assembly 20 and is connected with the sand storage and storage tank 11 through a pipeline to form a multiphase flow gas circulation loop.

The separator 16 is a machine for separating the mixed substances into two or more different substances, and serves to separate and collect the sand and liquid removed by the desander 1 and the test assembly 20. Alternatively, the separator 16 may be any machine capable of achieving separation, for example, the separator 16 may be a gravity separator, a centrifugal separator, or an electrostatic separator.

The grit and the liquid of desorption that obtain through desander 1 and test component 20 get into the inside of separator 16, make sand liquid flow back to in storing up sand liquid storage pot 11 through the pipeline, form the gas-liquid-solid multiphase flow circulation circuit of test pipeline 01, make the sand liquid of desorption be collected in separator 16, and the gas that flows out through separator 16 is the gas after carrying out the desanding, thereby realize sand liquid cyclic utilization, reduce the step of repeated grit and liquid that adds, also reduce the step of taking out the sand liquid simultaneously, realized reducing the manual operation link, reach the purpose that improves desander on-line testing device automation.

Fig. 5 shows a schematic structural view of another online testing device for desanders, which includes a sand feeding assembly 10, a liquid discharge return port 17 and a sand discharge return port 18, according to the alternative embodiment of fig. 4. A first end of the liquid discharge return port 17 is communicated with the sand storage and storage tank 11, and a second end of the liquid discharge return port 17 is communicated with the separator 16; the first end of the sand discharge return port 18 is communicated with the sand storage tank 11, and the second end of the sand discharge return port 18 is communicated with the desander 1. The liquid discharge return port 17 and the sand discharge return port 18 are arranged on one side of the sand storage tank 11 close to the test component 20 and are used for recycling the gravel removed by the sand remover 1 and the liquid separated by the separator 16. Illustratively, the drainage return port 17 is communicated with a drainage port of the separator 16, and the sand discharge return port 18 is communicated with a sand discharge port of the sand storage tank 11.

The principle of circulation of the sand liquid comprising the separator 16, the drainage return 17 and the sand drainage return 18 is as follows: gravel removed by the desander 1 is circularly filled into the sand storage and storage tank 11 through the sand discharge return port 18 through a pipeline; the liquid separated by the separator 16 is filled into the sand storage tank 11 through a liquid discharge return port 17 through a pipeline.

In the embodiment of the application, the sand liquid circulation can be realized by arranging the separator 16, the liquid discharge return port 17 and the sand discharge return port 18, so that the removed sand liquid is recycled, multiple manual operations in the test operation are reduced, the labor intensity of testers is reduced, and the automation degree of the online sand remover testing device is improved.

The desanding performance of the desander is influenced by the content of sand liquid in gas and the airflow condition of the gas, so that the desanding performance of the desander of the same type is different under different airflow conditions. Therefore, the air flow condition needs to be controlled when testing the sand removing performance of the sand remover.

Fig. 6 shows a schematic structural diagram of another online desander test device based on the alternative embodiment of fig. 1. The online testing device for the desander further comprises an airflow adjusting assembly 30, wherein the airflow adjusting assembly 30 comprises a pressure regulator 31 and a flow stabilizer 32 which are sequentially communicated from front to back. Wherein, voltage regulator 31 and current regulator 32 communicate with test pipeline 01, and voltage regulator 31 and current regulator 32 are located the preceding of test assembly 20.

The gas flow regulating assembly 30 is used to provide stable gas flow conditions for the online desander test unit, which gas flow conditions include at least gas flow, gas pressure, and gas temperature. The pressure regulator 31 is a device for maintaining the downstream pressure stable in the state of the gas flow rate and the upstream pressure change, and may be vertically installed on the test pipe 01. The pressure regulator 31 is mainly used to regulate the upstream gas pressure passing through the front end of the pressure regulator 31 to a stable range, and to feed the gas to the downstream pipe at the rear end of the pressure regulator 31. The flow stabilizer 32 can stabilize the gas flow conditions, and is mainly used to keep the pressure change range of the gas treated by the regulator 31 when the gas flows through the flow stabilizer 32 small. The flow stabilizer 32 is horizontally arranged on the test pipeline 01, preferably, the flow stabilizer 32 can be a gas flow stabilizer valve, and is provided with an air inlet and an air outlet, a pressure gauge is arranged in the direction perpendicular to the inlet and outlet, and the airflow condition of the output gas is adjusted through a knob.

The airflow adjusting assembly 30 can realize the function of conveying gas on the one hand, and can stabilize the airflow condition flowing through the airflow adjusting assembly 30 on the one hand, so that the stable airflow condition is provided for the operation of the online testing device of the desander, and the performance testing result of the desander is more accurate. In addition, the pressure regulator 31 and the flow stabilizer 32 can also adjust the airflow conditions of the flowing gas, so that different airflow conditions are provided for the operation of the online sand remover testing device, and the device can operate under different airflow conditions.

In the performance test of the desander, the selection of the desanding performance data is beneficial to determining the desanding test result of the desander, and the desanding performance data at least comprises the solid particle content, the particle size distribution and the gas sand carrying capacity index. Wherein, the solid particulate content refers to the amount of gravel in the gas; the particle size distribution refers to the proportion of grits of different particle sizes contained in the gas in all grit contents, also called particle size dispersion; the gas sand carrying capacity index refers to the content of gravel in gas.

The performance of the desander can be determined by comparing the desanding performance data before and after desanding of the desander. Therefore, the test component 20 in the online desander test device comprises at least two sand measuring devices, wherein the at least two sand measuring devices are respectively arranged at the front end and the rear end of the desander 1 and used for acquiring desanding performance data of the desander 1 before and after desanding.

Alternatively, fig. 7 shows a schematic structural view of a test assembly 20. The sand measuring device comprises a first intrusive sand measuring device 21 and a second intrusive sand measuring device 22, wherein the first intrusive sand measuring device 21 and the second intrusive sand measuring device 22 are used for obtaining the content and the particle size distribution data of solid particles before and after the sand removal of the sand remover 1.

The first end of the first intrusive sand measuring device 21 is communicated with a pipeline, and the first intrusive sand measuring device 21 is arranged at the front end of the desander 1; the first end of the second sand intrusion measuring device 22 is communicated with the pipeline, and the second sand intrusion measuring device 22 is arranged at the rear end of the desander 1. Illustratively, a first end of the first sand intrusion measuring device 21 and a first end of the second sand intrusion measuring device 22 are inserted into the test pipeline 01, and a second end of the first sand intrusion measuring device 21 and a second end of the second sand intrusion measuring device 22 are sampling ports of the device and are used for taking out a detected gravel sample. At this time, the gas flow path is: the sand removing device comprises a first sand intrusion measuring device 21, a sand remover 1 and a second sand intrusion measuring device 22.

Alternatively, fig. 8 shows a schematic structural view of another test assembly 20. The sand measuring device is a first non-invasive sand measuring device 23 and a second non-invasive sand measuring device 24, wherein the first non-invasive sand measuring device 23 and the second non-invasive sand measuring device 24 are used for obtaining gas sand carrying capacity index data before and after the sand removal of the sand remover 1.

The first non-invasive sand measuring device 23 is fixedly arranged in front of the first end of the desander 1, and the second non-invasive sand measuring device 24 is fixedly arranged behind the second end of the desander 1. At this time, the gas flow path is: a first non-invasive sand measuring device 23, a sand remover 1 and a second non-invasive sand measuring device 24. The detection result of the non-invasive sand measuring device on the performance of the sand remover is influenced by the installation position, and the specific installation position of the device can be set according to actual needs. Illustratively, the first non-invasive sand measuring device 23 is fixedly arranged at the downstream 2-times pipe diameter of the first elbow at the inlet end of the desander 1, and the second non-invasive sand measuring device 24 is fixedly arranged at the downstream 2-times pipe diameter of the first elbow at the outlet end of the desander 1.

Alternatively, fig. 9 shows a schematic structural view of another test assembly 20. The sand measuring devices are a first intrusive sand measuring device 21, a second intrusive sand measuring device 22, a first non-intrusive sand measuring device 23 and a second non-intrusive sand measuring device 24; the first intrusive type sand measuring device 21, the second intrusive type sand measuring device 22, the first non-intrusive type sand measuring device 23 and the second non-intrusive type sand measuring device 24 are used for obtaining index data of solid particle content, particle size distribution and gas sand carrying capacity before and after sand removal of the sand remover 1.

The first end of the first intrusive sand measuring device 21 is communicated with a pipeline, the first intrusive sand measuring device 21 is arranged at the front end of the desander 1, and the first non-intrusive sand measuring device 23 is fixedly arranged between the first intrusive sand measuring device 21 and the desander 1; the second end of the desander 1 is communicated with the first end of the second intrusive type sand measuring device 22, the second intrusive type sand measuring device 22 is arranged at the rear end of the desander 1, and the second non-intrusive type sand measuring device 24 is fixedly arranged between the desander 1 and the second intrusive type sand measuring device 22. At this time, the gas flow path is: the device comprises a first sand intrusion measuring device 21, a first non-sand intrusion measuring device 23, a desander 1, a second non-sand intrusion measuring device 24 and a second sand intrusion measuring device 22.

Illustratively, the test assembly 20 also includes a differential pressure gauge 25. The differential pressure gauge 25 is arranged between the desander 1 and the test pipeline 01, and the differential pressure gauge 25 is used for measuring the gas pressure change range passing through the desander 1, evaluating the pressure stability of the desanding performance of the desander 1 and providing a reference basis for the operation of the desander 1.

Fig. 10 is a schematic structural diagram illustrating a schematic structural diagram of a first sand intrusion detection device according to an alternative embodiment of fig. 9. The first invasive sand measuring device 21 comprises a sampling probe 211, a trap 212, a drying pipe 213 and a dry gas flowmeter 214; the first end of the sampling probe 211 extends into the test pipeline 01, the second end of the sampling probe 211 is communicated with the trap 212, the first end of the drying pipe 213 is communicated with the trap 212, and the second end of the drying pipe 213 is communicated with the dry gas flowmeter 214.

By arranging the first intrusive sand measuring device 21, the content and particle size distribution data of solid particles before desanding of the desander can be acquired. The first sand intrusion measuring device 21 operates as follows: when gas in the test pipeline 01 flows through the first intrusive sand testing device 21, part of the gas flows out after passing through the sampling probe 211, and the sampling probe 211 can obtain gravel wrapped in the gas; the catcher 212 is used for catching the liquid and the gravel acquired by the sampling probe 211, the weight of the gravel in the gas can be obtained by weighing the gravel caught by the catcher 212, and the particle size distribution of the gravel can be obtained by analyzing the particle of the gravel; subsequently, the gas carrying liquid flows through the drying pipe 213, is dried in the drying pipe 213, and then enters the dry gas flow meter 214, the dry gas flow meter 214 can measure the flow rate of the flowing gas, and the gas is discharged after flowing through the dry gas flow meter 214.

Illustratively, the sampling method of the intrusive sand measuring device has relevant standards, and can be carried out according to the measuring weighing method of the content of particulate matters in GB/T27893-2011 natural gas. Illustratively, the first sand intrusion measuring device 21 further includes a ball valve 215, a stop valve 216, and a needle valve 217; a ball valve 215, a cut-off valve 216 are provided between the sampling probe 211 and the trap 212, and a needle valve 217 is provided between the trap 212 and the drying tube 213.

The ball valve 215 is simple and compact in structure, reliable in sealing and simple in operation, and is used for opening the sampling probe 211 and the trap 212. The stop valve 216 is a forced sealing type valve, and has a reliable cut-off function for opening the channels of the sampling probe 211, the trap 212, the sampling probe 211 and the drying pipe 213. The needle valve 217 can be precisely adjusted to open the trap 212 and drying tube 213 channels.

When gas flows through the first sand intrusion measuring device 21, the first sand intrusion measuring device 21 is opened and closed through the ball valve 215, the stop valve 216 and the needle valve 217, and when gas does not need to flow through, the valves are closed, so that the first sand intrusion measuring device 21 is well sealed, and gas cannot enter the device, thereby playing a role in effective cut-off and throttling.

Alternatively, the ball valve 215, the stop valve 216, and the needle valve 217 may be a metal material, an alloy material, or a stainless steel material.

Illustratively, the first sand intrusion measuring device 21 further includes a pressure gauge 218. The pressure gauge 218 is disposed between the sampling probe 211 and the trap 212, and is used for measuring the gas pressure passing through the first sand intrusion detecting device 21, and effectively controlling the pressure applied to the first sand intrusion detecting device 21.

The second sand intrusion measuring device 22 is constructed as described above.

Fig. 11 shows a schematic structural diagram of the first non-invasive sand measuring device 23 according to an alternative embodiment of fig. 9. The first non-invasive sand measuring device 23 comprises an acoustic sensor 231 and a sensor mounting strap 232; the acoustic sensor 231 is in contact with the outer wall of the test pipe 01 and is used for capturing an acoustic wave signal emitted when the gravel 2 impacts the inner wall of the test pipe 01; the sensor mounting strap is wrapped around the test tube 01 and fixedly attached to the acoustic sensor 231 for securing the acoustic sensor 231 to the outer wall of the test tube 01.

By arranging the first non-invasive sand measuring device 23, the index data of the gas sand carrying capacity before desanding of the desander can be obtained. The first non-invasive sand measuring device 23 operates as follows: when the gas in the test pipeline 01 flows through the pipeline section contacted by the first non-invasive sand measuring device 23, the gravel entrained in the gas impacts the inner wall of the test pipeline 01 to generate acoustic signals within a certain frequency range, at the moment, the acoustic sensor 231 can capture the acoustic signals and transmit the acoustic signals to the control unit for processing, and the current gas sand carrying capacity index is measured. In this process, the first non-invasive sand measuring device 23 is in contact with only the outer wall of the test tube 01 and does not affect the gas flow through the contacted tube section.

The second non-invasive sand measuring device 24 is constructed as described above.

In the embodiment of the application, through setting up the test component 20 that includes two at least survey sand devices, online testing arrangement of desander can realize obtaining the purpose of desanding performance data, obtain at least one of solid particle content, particle size distribution, gaseous sand carrying capacity index data around the desander desanding, confirm the desanding performance of desander through the contrast for the tester can be detailed record the desanding performance data of desander, and then make the test operation to the desander more accurate.

As a desander performance testing device, the position and the installation mode of the online desander testing device relative to an on-site gas transmission pipeline at least comprise the following two types:

schematically, the airflow adjusting assembly 30, the sand adding assembly 10 and the testing assembly 20 of the online testing device of the sand remover are sequentially connected through pipelines; a first end of the airflow regulating assembly 30 is communicated with the test pipeline 01; the second end of the test assembly 20 is in communication with the test conduit 01. There are various alternatives for the manner in which the airflow regulating assembly 30 and the test assembly 20 communicate with the test conduit 01, illustratively, the first end of the airflow regulating assembly 30 communicates with the test conduit 01 through the valve 41; the second end of the test assembly 20 communicates with the test line 01 through a valve 42. That is, each subassembly in the online testing arrangement of desander passes through valve or pipeline and assembles in proper order along the air current direction, with test tube 01 intercommunication, forms the survey line device of trunk line 02, and gas can flow through this online testing arrangement of desander 01 at the place, also can directly carry to low reaches through trunk line 02.

Illustratively, the airflow regulating assembly 30, the sand feeding assembly 10 and the testing assembly 20 of the online testing device of the desander are integrated on an integrated base and are communicated with the testing pipeline 01. Illustratively, the air flow regulating assembly 30, the sanding assembly 10, and the testing assembly 20 are disposed on the testing line 01 through valves. That is, online testing arrangement of desander is the sled dress device, and the device forms the integral type steel construction, makes things convenient for the dismouting to utilize.

Illustratively, the setting of the valve can be set according to actual needs, and the application is not limited herein.

In the embodiment of the application, the online testing device of the sand remover can be a line testing device of the main pipeline 02 and can also be a skid-mounted device of the main pipeline 02. In the operation of testing the sand remover, gas can pass through the testing pipeline 01 where the online testing device of the sand remover is located, so that the aim of gas delivery is fulfilled, and the aim of the operation of testing the performance of the sand remover is fulfilled.

Schematically, fig. 12 shows a schematic structural view of another online desander test device. The airflow adjusting assembly 30 further includes a gas flow meter 33, a gas pressure gauge 34 and a gas thermometer 35 sequentially disposed on the testing pipe 01, wherein the gas flow meter 33 is disposed at the rear end of the flow stabilizer 32. The gas flow meter 33, the gas pressure gauge 34, and the gas temperature gauge 35 are used to measure gas flow conditions of the gas flowing through the gas regulating assembly 30, including gas flow rate, gas pressure, and gas temperature.

By recording the air flow conditions, the testing environment of the online performance test of the currently-performed desander can be judged, so that the desanding performance and the effect of desanders of different models can be judged under the same air flow conditions. In addition, reference basis can be provided for the operation of the online testing device of the in-service desander, the air flow condition is set according to the testing result of the device, and reference basis is provided for the selection of newly-built desander in the later period. In addition, in the online testing process of the performance of the desander which is carried out for many times, the recording of the gas flow, the pressure and the temperature can help to research the influence of the gas flow conditions on the performance of the desander, so that different gas flow conditions are set for desanders of different models to achieve the maximum desanding effect of the desander.

With reference to the schematic structural diagram of another online testing device for desander, which is shown in fig. 12, the following provides an overview of the working principle of the online testing device for desander performance provided by the embodiment of the present application:

when it is desired to operate the online grit catcher test arrangement, the valves 41, 42, 43 on the test line 01 are opened and the valve 44 on the main line 02 is closed, allowing gas to pass through the test line 01. Alternatively, the valves 41, 42, 43 and 44 may be eliminated, and the online desander test apparatus may be disposed on the main pipe 02 so that the gas flows through the online desander test apparatus.

When the gas passes through the gas regulating assembly 30, the gas flow condition of the gas tends to a stable state through the pressure regulator 31 and the flow stabilizer 32, and the gas flow condition is recorded through the gas flowmeter 33, the gas pressure gauge 34 and the gas thermometer 35.

After the air flow condition is stable, the sand adding valve 13 is opened, the sand adding pump 12 provides power to stir sand liquid in the sand storage liquid storage tank 11, and sand liquid mixture is pumped into the test pipeline 01 to be mixed with gas, so that gas-liquid-solid multiphase flow mainly comprising gas phase is formed and flows in the test pipeline 01 along the air flow direction.

And then, starting the first invasive sand measuring device 21 and the first non-invasive sand measuring device 23, closing the second invasive sand measuring device 22 and the second non-invasive sand measuring device 23, and acquiring the sand grain content, the grain size distribution and the sand carrying capacity index data of the desander 1 before desanding when the gas flows through the first invasive sand measuring device 21 and the first non-invasive sand measuring device 24. At this time, the gas flow path is sequentially: the device comprises a rear end of a test pipeline 01, a pressure regulator 31, a flow stabilizer 32, a gas flowmeter 33, a gas pressure gauge 34, a gas thermometer 35, a first invasive sand measuring device 21, a first non-invasive sand measuring device 23, a desander 1, a differential pressure gauge 25, a separator 16 and a front end of the test pipeline 01.

Then, the second intrusive sand measuring device 22 and the second non-intrusive sand measuring device 24 are started, the first intrusive sand measuring device 21 and the first non-intrusive sand measuring device 23 are closed, and the sand content, the particle size distribution and the sand carrying capacity index data after the desanding of the desander 1 are obtained when the gas flows through the second intrusive sand measuring device 22 and the second non-intrusive sand measuring device 24. At this time, the gas flow path is sequentially: the device comprises a rear end of a test pipeline 01, a pressure regulator 31, a flow stabilizer 32, a gas flowmeter 33, a gas pressure gauge 34, a gas thermometer 35, a sand remover 1, a differential pressure gauge 25, a second non-invasive sand measuring device 22, a second invasive sand measuring device 24, a separator 16 and a front end of the test pipeline 01.

Illustratively, the first sand intrusion measuring device 21, the first sand non-intrusion measuring device 23, the second sand intrusion measuring device 22 and the second sand non-intrusion measuring device 24 may be always activated, and the sampling operation is directly performed when the sampling is needed. Illustratively, the sampling operations of the first sand intrusive measuring device 21, the first sand non-intrusive measuring device 23, the second sand intrusive measuring device 22 and the second sand non-intrusive measuring device 24 may be performed simultaneously or may not be performed simultaneously, which is not limited herein.

And (3) carrying out performance evaluation on the desander by comparing the solid particle content, the particle size distribution and the sand carrying capacity index data obtained before and after desanding.

The sand removing performance of the sand remover 1 was evaluated for pressure stability based on the differential pressure recorded by the differential pressure gauge 25.

Then, the liquid separated by the separator 16 is recovered into the sand storage tank 11 through a liquid discharge return port 17 through a pipeline, the gravel removed by the desander 1 is recovered into the sand storage tank 11 through a sand discharge return port 18, and a new round of online performance test of the desander is performed.

When the online testing device of the desander does not need to be operated, the valves 41, 42 and 43 on the testing pipeline 01 are closed, and the valve 44 on the main pipeline 02 is opened, so that the gas passes through the main pipeline 02. At this time, the gas flow path is: the front end of the main pipe 02, the rear end of the main pipe 02.

Illustratively, the online testing device of the sand remover can be arranged on the testing pipeline 01, can be arranged on the main pipeline 02, and can be a testing line device arranged on the testing pipeline 01 or the main pipeline 02, and the testing pipeline 01 and the main pipeline 02 are only one exemplary embodiment given in the embodiments of the present application, and the present application is not limited herein.

By adopting the online testing device for the desander, the desanding performance of the desander can be tested. Therefore, the application also provides an online testing method for the performance of the desander.

Based on the alternative embodiment of fig. 1, fig. 13 shows a flow chart of a method for online testing of desander performance, the method comprising:

step 101: operating the desander 1;

step 102: opening a sand adding valve 13, driving a sand adding pump 12 to pump the self-defined sand liquid in the sand storage liquid tank 11 into the test pipeline 01, wherein the self-defined sand liquid is sand liquid with different proportions set according to test requirements, gravel and liquid used for testing are stored in the sand storage liquid tank 11, the sand adding pump 12 provides power for stirring the sand liquid for the sand storage liquid tank 11, and the sand liquid is pumped into the test pipeline 01 through the sand adding valve 13;

specifically, step 102 belongs to a step of adding sand and liquid, and the sand adding pump 12 can be driven for multiple times to pump the custom sand liquid into the test pipeline 01 according to the test requirement. That is, the step of adding sand and liquid can be to pump in the sand liquid of a proportion according to the test needs, also can be to pump in the sand liquid of different proportions many times according to the test needs for the test operation can realize going on under the operating mode of different sand-containing liquid contents.

Step 103: the test assembly 20 is started to acquire the sand removing performance data of the sand remover 1 and determine the sand removing performance of the sand remover 1.

Specifically, the desanding performance data obtained in step 103 is obtained according to the test requirement, and may be test data under one working condition of sand content or test data under multiple working conditions of sand content, which is not limited herein.

The gas after the sand adding and liquid adding treatment flows through the testing component 20 and the desander 1, the testing component 20 can acquire desanding performance data before and after desanding of the desander 1, the desanding performance data at least comprises one of solid particle content, particle size distribution and sand carrying capacity index data, the solid particle removal rate, the different particle size removal rates and the gas sand carrying capacity of the desander 1 are obtained through calculation, and the desanding performance of the desander 1 is determined.

In the test operation of the desander, the step of adding sand and liquid has multiple realization modes, and two alternatives are given as follows:

based on the alternative embodiment of fig. 13, the online desander test apparatus includes a sanding charge 14, and step 102 includes at least one of the following optional steps:

a first optional step:

step 102 a: and opening a sand adding valve 13, filling gravel into a sand adding filling opening 14 according to a first preset proportion, and driving a sand adding pump 12 to pump gravel entering a sand storage liquid storage tank 11 into the test pipeline 01.

As shown in the flow chart of the online desander performance test method shown in fig. 14.

A second optional step:

step 102 b: and opening a sand adding valve 13, filling liquid into a sand adding filling opening 14 according to a second preset proportion, and driving a sand adding pump 12 to pump the liquid entering a sand storage liquid storage tank 11 into the test pipeline 01.

A third optional step:

step 102 c: and opening a sand adding valve 13, filling gravel and liquid into a sand adding filling opening 14 according to a third preset proportion, driving a sand adding pump 12 to provide power to stir the gravel and the liquid entering a sand storage liquid storage tank 11, and pumping the gravel and the liquid into a test pipeline 01.

Through the steps, the online testing method for the performance of the desander can fill the sand injection liquid according to the preset proportion, and can meet the performance evaluation of the desander under different sand content working conditions.

Based on the alternative embodiment of fig. 13, the online desander test apparatus includes a shot tank 111 and a shot tank 112; step 102 comprises at least one set of the following optional steps:

a first optional step:

step 102a1, sand and liquid are filled into sand tank 111 and liquid tank 112, respectively.

Step 102a 2: and controlling a valve between the sand adding tank 111 and the sand storage and storage tank 11 according to a first preset proportion.

Step 102a 3: and opening a sand adding valve 13, and driving a sand adding pump 12 to pump gravel entering the sand storage liquid storage tank 11 into the test pipeline 01.

As shown in the flow chart of the online desander performance test method shown in fig. 15.

A second optional step:

step 102b 1: the sand feed tank 111 and the liquid feed tank 112 are filled with sand and liquid, respectively.

Step 102b 2: and controlling a valve between the liquid adding tank 112 and the sand storage tank 11 according to a second preset proportion.

Step 102b 3: and opening the sand adding valve 13, and driving the sand adding pump 12 to pump the liquid entering the sand storage liquid storage tank 11 into the test pipeline 01.

A third optional step:

step 102c 1: the sand feed tank 111 and the liquid feed tank 112 are filled with sand and liquid, respectively.

Step 102c 2: and controlling valves between the sand adding tank 111 and the sand discharging and storing liquid storage tank 11 and between the liquid adding tank 112 and the sand discharging and storing liquid storage tank 11 according to a third preset proportion.

Step 102c 3: and opening a sand adding valve 13, driving a sand adding pump 12 to provide power to stir the gravel and the liquid entering the sand storage liquid storage tank 11, and pumping the gravel and the liquid into the test pipeline 01.

In the desander performance test operation, the sand liquid of desorption can cause wearing and tearing to gas pipeline, desander and survey sand device, and need suspend the test operation and take out the sand liquid of desorption when the sand liquid of desorption accumulates to a certain extent for the test operation step is complicated.

FIG. 16 is a flow chart of another method for online testing of grit catcher performance, based on the alternative embodiment of FIG. 13. The online testing device of the desander comprises a separator 16, a liquid discharge return port 17 and a sand discharge return port 18; the method further comprises the following steps:

step 104 a: the liquid separated by the separator 16 is recycled into the sand storage liquid storage tank 11 through the liquid discharge return port 17;

step 104 b: the gravel removed by the desander 1 is recycled into the sand storage tank 11 through the sand discharge return port 18.

Through the steps, the method can realize the recycling of the desanding liquid, form a gas-solid-liquid multi-phase flow circulation loop in the test pipeline 01, simplify repeated steps in test operation and improve test operation efficiency.

In the sand remover test operation, the test result is also affected by the gas flow condition of the gas, and therefore, the gas flow condition of the gas needs to be controlled.

FIG. 17 shows a flow chart of another method for online testing of grit catcher performance, based on the alternative embodiment of FIG. 13. The online testing device of the desander comprises a pressure regulator 31 and a current stabilizer 32; the method further comprises the following steps:

step 100: the pressure regulator 31 and the flow stabilizer 32 are activated to adjust the gas flow conditions of the gas passing through the test tube 01, the gas flow conditions including at least one of the gas flow rate, the gas pressure and the gas temperature.

Through the steps, the online testing method for the performance of the desander can be completed under the condition of stable airflow, so that the testing result of the performance of the desander is more accurate; in addition, the pressure regulator 31 and the flow stabilizer 32 can also adjust the airflow conditions of the flowing gas, so as to provide different airflow conditions for the test method, and the method can be realized under different airflow conditions.

In the operation of testing the performance of the desander, the desanding performance of the desander can be determined only by acquiring the desanding performance data. FIG. 18 shows a flow chart of another method for online testing of grit catcher performance, based on the alternative embodiment of FIG. 13. The online sand remover testing device comprises at least two sand measuring devices, and the sand measuring devices comprise at least two of a first intrusive sand measuring device 21, a second intrusive sand measuring device 22, a first non-intrusive sand measuring device 23 and a second non-intrusive sand measuring device 24;

step 103 comprises at least one set of the following optional steps:

a first optional step:

step 103a 1: and operating the first intrusive sand measuring device 21 to measure the sand content of the sand remover 1 before sand removal, and obtaining the content and the particle size distribution of fixed particles before sand removal.

Step 103a 2: and operating a second intrusive sand measuring device 22 to measure the sand content of the sand remover 1 after sand removal, and obtaining the content and the particle size distribution of the fixed particles after sand removal.

Step 103a 3: and calculating the total removal rate and the removal rates with different particle sizes of the solid particles according to the obtained content and particle size distribution of the solid particles before and after the desanding, and determining the desanding performance of the desander 1.

A second optional step:

step 103b 1: the first non-invasive sand measuring device 23 is operated to measure the gas sand carrying capacity index of the sand remover 1 before sand removal.

Step 103b 2: and operating a second non-invasive sand measuring device 24 to measure the gas sand carrying capacity index of the sand remover 1 after sand removal.

Step 103b 3: and calculating the gravel content removed in each hour according to the obtained gas sand carrying capacity indexes before and after sand removal, and determining the sand removal performance of the sand remover 1.

A third optional step:

step 103c 1: and operating the first intrusive sand measuring device 21 to measure the sand content of the sand remover 1 before sand removal, and obtaining the content and the particle size distribution of fixed particles before sand removal.

Step 103c 2: the first non-invasive sand measuring device 23 is operated to measure the gas sand carrying capacity index of the sand remover 1 before sand removal.

Step 103c 3: and operating a second non-intrusive sand measuring device 24 to measure the gas sand carrying capacity index of the sand remover 1 after sand removal.

Step 103c 4: and operating a second intrusive sand measuring device 22 to measure the sand content of the sand remover 1 after sand removal, and obtaining the content and the particle size distribution of the fixed particles after sand removal.

Step 103c 5: the total removal rate of the solid particles, the removal rates of different particle sizes and the content of gravel removed per hour are calculated according to the obtained content and particle size distribution of the solid particles before and after the desanding and the gas sand carrying capacity index, and the desanding performance of the desander 1 is determined.

Through at least two of first intrusive sand measuring device 21, second intrusive sand measuring device 22, first non-intrusive sand measuring device 23 and second non-intrusive sand measuring device 24, the online sand remover performance testing method provided by the embodiment of the application can obtain sand removing performance data before and after sand removing, and the online sand remover performance testing method comprises at least one of solid particle content and particle size distribution and gas sand carrying capacity index data, and can obtain at least one of total solid particle removal rate, different particle removal rates and sand content removed per hour through calculation, so that specific sand removing performance of the sand remover 1 is compared, and the performance of the sand remover is evaluated.

In combination with another online testing method for performance of a desander, which is shown in fig. 18, the online testing method for performance of a desander provided by the embodiment of the present application may be:

Step 101: the desander 1 is operated.

Step 102 c: and opening a sand adding valve 13, and filling a certain volume of quartz sand and/or adding a certain volume of water into a sand adding filling opening 14. For example, 1/4-3/4 volumes of quartz sand and 1/4-3/4 volumes of water are added into the sand adding opening 14. The sand adding pump 12 is driven to provide power to stir quartz sand and water which enter the sand storage liquid storage tank 11 and have a certain proportion, gravel and liquid are pumped into the test pipeline 01, and gas-liquid-solid multiphase flow mainly comprising gas phase is formed.

Step 103c 3: and operating a second non-invasive sand measuring device 24 to measure the gas sand carrying capacity index of the sand remover 1 after sand removal.

Step 104 a: the liquid separated by the separator 16 is recycled into the sand storage tank 11 through the liquid discharge return port 17.

Step 105: the sand removing performance of the sand remover 1 was evaluated for pressure stability by the differential pressure recorded by the differential pressure gauge 25.

All the above optional technical solutions may be combined arbitrarily to form optional embodiments of the present application, and are not described herein again. The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a desander on-line testing device which characterized in that, desander on-line testing device includes: the sand adding assembly (10) and the testing assembly (20) are sequentially arranged on the testing pipeline (01);

the sand adding assembly (10) comprises a sand storage liquid storage tank (11), a sand adding pump (12) and a sand adding valve (13), the sand adding valve (13) is communicated with the test pipeline (01), the first end of the sand adding pump (12) is communicated with the first end of the sand adding valve (13), and the second end of the sand adding pump (12) is communicated with the sand storage liquid storage tank (11);

the test assembly (20) is used for acquiring the sand removal performance data of the sand remover (1) according to the multiphase flow gas output by the test pipeline (01), and the multiphase flow gas is subjected to sand adding and liquid adding treatment of the sand adding assembly (10).

2. The online desander test system as recited in claim 1, wherein said sanding assembly (10) further comprises a sanding charge (14);

the bottom of the sand adding filling opening (14) is communicated with the sand storage liquid storage tank (11).

3. The online desander test system as claimed in claim 1, wherein said sanding assembly (10) further comprises a sanding tank (111) and a priming tank (112);

the bottoms of the sand adding tank (111) and the liquid adding tank (112) are respectively communicated with the sand storage liquid storage tank (11) through valves.

4. The online desander test system as claimed in claim 2 or 3, wherein said sanding assembly (10) further comprises a sand flow meter (15);

the first end of the sand-liquid flow meter (15) is communicated with the second end of the sand adding valve (13), and the second end of the sand-liquid flow meter (15) is communicated with the test pipeline (01).

5. The online grit catcher test device according to claim 1, wherein said sanding assembly (10) further comprises a separator (16);

the separator (16) is arranged at the rear end of the testing component (20) and is connected with the sand storage and liquid storage tank (11) through a pipeline to form a multiphase flow gas circulation loop.

6. The online desander test system as claimed in claim 5, wherein said sanding assembly (10) further comprises: a liquid discharge return port (17) and a sand discharge return port (18);

the first end of the liquid drainage return port (17) is communicated with the sand storage and storage tank (11), and the second end of the liquid drainage return port (17) is communicated with the separator (16);

the first end of the sand discharge return port (18) is communicated with the sand storage liquid storage tank (11), and the second end of the sand discharge return port (18) is communicated with the desander (1).

7. The online grit catcher test device according to claim 1, further comprising a gas flow regulating assembly (30);

the air flow adjusting assembly (30) comprises a pressure regulator (31) and a flow stabilizer (32) which are sequentially communicated from front to back;

the voltage regulator (31) with current regulator (32) with test pipeline (01) intercommunication, voltage regulator (31) with current regulator (32) are located before test subassembly (20).

8. The online grit catcher test device according to claim 1, wherein said test assembly (20) comprises at least two sand testers;

the sand measuring devices are respectively arranged at the front end and the rear end of the desander (1).

9. The online desander test system as claimed in claim 8, wherein said at least two sand testers are a first sand intrusion tester (21) and a second sand intrusion tester (22);

the first end of the first intrusive sand measuring device (21) is communicated with a pipeline, and the first intrusive sand measuring device (21) is arranged at the front end of the desander (1);

the first end of the second intrusive sand measuring device (22) is communicated with a pipeline, and the second intrusive sand measuring device (22) is arranged at the rear end of the desander (1).

10. The online desander test system as claimed in claim 8, wherein said at least two sand testers are a first non-intrusive sand tester (23) and a second non-intrusive sand tester (24);

the first non-invasive sand measuring device (23) is fixedly arranged in front of the first end of the desander (1), and the second non-invasive sand measuring device (24) is fixedly arranged at the second end of the desander (1).

11. The online desander test system as claimed in claim 8, wherein the at least two sand testers are a first sand intrusion detector (21), a second sand intrusion detector (22), a first sand non-intrusion detector (23) and a second sand non-intrusion detector (24);

the first end of the first intrusive sand measuring device (21) is communicated with a pipeline, the first intrusive sand measuring device (21) is arranged at the front end of the desander (1), and the first non-intrusive sand measuring device (23) is fixedly arranged between the first intrusive sand measuring device (21) and the desander (1);

the second end of desander (1) with the first end intercommunication of second invasive sand device (22) is surveyed, second invasive sand device (22) set up in the rear end of desander (1), second non-invasive sand device (24) fixed set up in desander (1) with between second invasive sand device (22).

12. The online grit catcher test device according to claim 1, wherein said test assembly (20) further comprises a differential pressure gauge (25);

the differential pressure gauge (25) is arranged between the sand remover (1) and the test pipeline (01).

13. The online desander test device as claimed in claim 1, wherein the gas flow regulating assembly (30) further comprises a gas flow meter (33), a gas pressure gauge (34) and a gas temperature gauge (35) which are sequentially arranged on the test pipeline (01);

the gas flowmeter (33) is arranged behind the current stabilizer (32).

14. The online desander test device as claimed in claim 13, characterized in that the gas flow regulating assembly (30), the sanding assembly (10) and the test assembly (20) are connected in sequence by a pipeline;

the first end of the air flow adjusting assembly (30) is communicated with the test pipeline (01);

the second end of the test assembly (20) is in communication with the test conduit (01).

15. The online grit catcher test device according to claim 13, wherein said airflow regulating assembly (30), said sanding assembly (10) and said test assembly (20) are integrated on one integrated base, communicating with said test conduit (01).

16. An online testing method for performance of a sand remover, which is carried out based on the online testing device for the sand remover as claimed in any one of claims 1-15, and comprises the following steps:

operating the desander (1);

opening the sand adding valve (13), driving the sand adding pump (12) to pump the self-defined sand liquid in the sand storage liquid storage tank (11) into the test pipeline (01), wherein the self-defined sand liquid is sand liquid with different proportions set according to test requirements;

and starting the test component (20) to obtain the sand removing performance data of the sand remover (1) and determining the sand removing performance of the sand remover (1).

17. The online desander performance test method as claimed in claim 16,

the online desander testing device comprises the sand adding filling port (14);

open add sand valve (13), the drive add sand pump (12) will store up the custom sand liquid pump in sand liquid storage pot (11) and go into test tube (01) includes:

opening the sand adding valve (13), adding gravel to the sand adding filling opening (14) according to a first preset proportion, and driving the sand adding pump (12) to pump the gravel entering the sand storage liquid storage tank (11) into the test pipeline (01);

or,

opening the sand adding valve (13), filling liquid into the sand adding filling opening (14) according to a second preset proportion, and driving the sand adding pump (12) to pump the liquid entering the sand storage liquid storage tank (11) into the test pipeline (01);

or,

open add sand valve (13), according to the third preset proportion to add sand filling opening (14) and annotate grit and liquid, the drive add sand pump (12) provide power to get into store up sand liquid storage pot (11) grit and liquid are stirred, will grit and liquid pump are gone into test pipeline (01).

18. The online desander performance test method as claimed in claim 16,

the online sand remover testing device comprises the sand adding tank (111) and the liquid adding tank (112);

respectively filling gravel and liquid into the sand filling tank (111) and the liquid filling tank (112);

controlling a valve between the sand adding tank (111) and the sand storage and liquid storage tank (11) according to a first preset proportion; opening the sand adding valve (13), and driving the sand adding pump (12) to pump gravel entering the sand storage liquid storage tank (11) into the test pipeline (01);

or,

controlling a valve between the liquid adding tank (112) and the sand storage liquid storage tank (11) according to a second preset proportion; opening the sand adding valve (13), and driving the sand adding pump (12) to pump the liquid entering the sand storage liquid storage tank (11) into the test pipeline (01);

or,

controlling valves between the sand adding tank (111) and the sand adding tank (112) and the sand storage and liquid storage tank (11) according to a third preset proportion; and opening the sand adding valve (13), driving the sand adding pump (12) to provide power to stir the gravel and the liquid entering the sand storage liquid storage tank (11), and pumping the gravel and the liquid into the test pipeline (01).

19. The online desander performance test method as claimed in claim 16,

the online desander test device comprises the separator (16), the drainage return port (17) and the sand drainage return port (18);

the method further comprises the following steps:

the liquid separated by the separator (16) is recycled into the sand storage and liquid storage tank (11) through the liquid discharge return port (17);

and gravel removed by the desander (1) is recycled into the sand storage liquid storage tank (11) through the sand discharge return port (18).

20. The online desander performance test method as claimed in claim 16,

the online sand remover testing device comprises a pressure regulator (31) and a current stabilizer (32);

the method further comprises the following steps:

and starting the pressure regulator (31) and the flow stabilizer (32) to adjust the airflow conditions of the passing gas in the test pipeline (01), wherein the airflow conditions comprise at least one of gas flow, gas pressure and gas temperature.

21. The online desander performance test method as claimed in claim 16,

the online desander test device comprises at least two sand measuring devices, wherein the at least two sand measuring devices comprise at least two of the first sand intrusive measuring device (21), the second sand intrusive measuring device (22), the first sand non-intrusive measuring device (23) and the second sand non-intrusive measuring device (24);

the starting of the test assembly (20) to obtain the desanding performance data of the desander (1), and the determining of the desanding performance of the desander (1) comprises:

operating the first intrusive sand measuring device (21) to measure the sand content of the desander (1) before desanding, and acquiring the fixed particulate content and the particle size distribution of the desanded particles; operating the second intrusive sand measuring device (22) to measure the sand content of the sand remover (1) after sand removal, and obtaining the content and the particle size distribution of the fixed particles after sand removal; calculating the total removal rate and the removal rates with different particle sizes of the solid particles according to the obtained content and particle size distribution of the solid particles before and after the desanding, and determining the desanding performance of the desander (1);

or,

operating the first non-intrusive sand measuring device (23) to measure a gas sand carrying capacity index of the desander (1) before desanding; operating the second non-invasive sand measuring device (24) to measure the gas sand carrying capacity index after the sand of the sand remover (1) is removed; calculating the gravel content removed in each hour according to the obtained gas sand carrying capacity indexes before and after sand removal, and determining the sand removal performance of the sand remover (1);

or,

operating the first intrusive sand measuring device (21) to measure the sand content of the desander (1) before desanding, and acquiring the fixed particulate content and the particle size distribution of the desanded particles; operating the first non-intrusive sand measuring device (23) to measure a gas sand carrying capacity index of the desander (1) before desanding; operating the second non-invasive sand measuring device (24) to measure the gas sand carrying capacity index after the sand of the sand remover (1) is removed; operating the second intrusive sand measuring device (22) to measure the sand content of the sand remover (1) after sand removal, and obtaining the content and the particle size distribution of the fixed particles after sand removal; and calculating the total removal rate of the solid particles, the removal rates of different particle sizes and the content of gravel removed per hour according to the obtained content and particle size distribution of the solid particles before and after the desanding and the gas sand carrying capacity index, and determining the desanding performance of the desander (1).