Particle Erosion Simulation Experimental Device for Wellhead Sampling Device

Abstract

The present invention provides a particle erosion simulation experimental device for a wellhead acquisition device. The inlet of the main pipeline is respectively connected to the outlet of the gas circulation pipeline and the outlet of the liquid circulation pipeline. The outlet of the main pipeline is respectively connected to the inlet of the first branch pipeline and the inlet of the second branch pipeline. The experimental chamber is connected to the main pipeline. The outlet of the first branch pipeline is connected to the waste gas treatment device, and the outlet of the second branch pipeline is connected to the liquid storage tank. The inlet of the liquid circulation pipeline is connected to the liquid storage tank, and the inlet of the gas circulation pipeline is connected to an air compressor. A particle adder is connected to the gas circulation pipeline, and a liquid pump is connected to the liquid circulation pipeline. An image acquisition device is installed outside the experimental chamber corresponding to the position of the image acquisition device and is electrically connected to a computer. The present invention can conduct simulation experiments on the erosion and wear of the wellhead acquisition device by liquid-solid two-phase fluid, gas-solid two-phase fluid, and gas-liquid-solid three-phase fluid.

Description

Technical Field

[0001] The present invention relates to the technical field of simulation experiments, and more specifically, to a particle erosion simulation experimental device for wellhead collection devices. Background Art

[0002] Currently, many resources come from underground. For example, resources such as natural gas, oil, and water all need to be collected from the corresponding underground.

[0003] Collecting corresponding resources in the corresponding well requires a wellhead collection device. There are various types of wellhead collection devices, such as six-way and four-way. During the long-term use of the wellhead collection device, it is prone to erosion wear problems due to being often scoured by gas carrying solid particles, liquid carrying solid particles, or gas-liquid mixture carrying solid particles.

[0004] However, since there is currently no particle erosion simulation experimental device for wellhead collection devices, it is not clear about the erosion wear degrees of wellhead collection devices under liquid-solid two-phase fluids, gas-solid two-phase fluids, and gas-liquid-solid three-phase fluids, and it is not clear about the flow laws of liquid-solid two-phase fluids, gas-solid two-phase fluids, and gas-liquid-solid three-phase fluids. Therefore, corresponding detection guidelines cannot be made for wellhead collection devices in different fluids, which brings inconvenience to detection; moreover, it is not clear about the influence of the flow state of the fluid, the flow velocity of the fluid, the temperature of the fluid, the pressure of the fluid, the content of particles in the fluid, the type of particles in the fluid, and the flow direction of the fluid on the wellhead collection device. As a result, during the detection of the wellhead collection device, corresponding detection schemes cannot be prepared for the wellhead collection device under the influence of different external factors, which further brings inconvenience to detection.

[0005] Therefore, how to provide a particle erosion simulation experimental device for wellhead collection devices to carry out simulation experiments on the erosion wear of wellhead collection devices by liquid-solid two-phase fluids, gas-solid two-phase fluids, and gas-liquid-solid three-phase fluids is a technical problem that those skilled in the art urgently need to solve. Summary of the Invention

[0006] In view of this, the present invention provides a particle erosion simulation experimental device for wellhead collection devices, aiming to at least partially solve the above technical problems.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A particle erosion simulation experimental device for a wellhead acquisition device, comprising: a gas flow pipeline, a liquid flow pipeline, a main pipeline, a first branch pipeline, a second branch pipeline, an experimental chamber, an exhaust gas treatment device, a liquid storage tank, an air compressor, a particle adder, a liquid pump, an image acquisition device and a computer, and the experimental chamber is transparent, and a specimen of the wellhead acquisition device is installed in the experimental chamber.

[0009] Wherein, the inlet of the main pipeline is respectively connected to the outlet of the gas flow pipeline and the outlet of the liquid flow pipeline, the outlet of the main pipeline is respectively connected to the inlet of the first branch pipeline and the inlet of the second branch pipeline, and the experimental chamber is connected to the main pipeline; the outlet of the first branch pipeline is connected to the exhaust gas treatment device, the outlet of the second branch pipeline is connected to the liquid storage tank, and a first valve is connected to the first branch pipeline, and a second valve is connected to the second branch pipeline; the inlet of the liquid flow pipeline is connected to the liquid storage tank, and the inlet of the gas flow pipeline is connected to the air compressor;

[0010] And, the particle adder is connected to the gas flow pipeline, and a third valve is connected to the gas flow pipeline, and the third valve is close to the main pipeline;

[0011] The liquid pump is connected to the liquid flow pipeline, and a fourth valve is connected to the liquid flow pipeline, and the fourth valve is close to the main pipeline;

[0012] The image acquisition device is installed outside the experimental chamber corresponding to the position of the image acquisition device and is electrically connected to the computer.

[0013] Preferably, it further comprises: a gas flowmeter, a liquid flowmeter, a fifth valve and a sixth valve;

[0014] Wherein, the gas flowmeter and the fifth valve are both connected to the gas flow pipeline and are both located between the third valve and the air compressor, and the fifth valve is close to the air compressor;

[0015] The liquid flowmeter and the sixth valve are both connected to the liquid flow pipeline and are both located between the fourth valve and the liquid pump, and the sixth valve is close to the liquid pump.

[0016] Preferably, it further comprises: a first pressure sensor and a second pressure sensor;

[0017] The first pressure sensor and the second pressure sensor are both connected to the main pipeline, and the first pressure sensor is close to the inlet end of the main pipeline, and the second pressure sensor is close to the outlet end of the main pipeline.

[0018] Preferably, an air storage tank and a refrigerant dryer are respectively connected to the gas flow pipeline, and both the air storage tank and the refrigerant dryer are located between the air compressor and the fifth valve, and the refrigerant dryer is close to the fifth valve.

[0019] Preferably, it further includes: a first temperature sensor, a second temperature sensor, and a heater;

[0020] Both the first temperature sensor and the second temperature sensor are connected to the main pipeline, and the first temperature sensor is close to the inlet end of the main pipeline, and the second temperature sensor is close to the outlet end of the main pipeline;

[0021] The heater is connected to the outer wall of the liquid storage tank, and the heating part of the heater penetrates through the tank wall of the liquid storage tank and is located in the inner cavity of the liquid storage tank.

[0022] Preferably, it further includes: a flow rate control branch pipeline, the inlet end and the outlet end of the flow rate control branch pipeline are both connected to the liquid flow pipeline, and a seventh valve is connected to the flow rate control branch pipeline, and the seventh valve is respectively connected in parallel with the sixth valve and the liquid pump.

[0023] Preferably, it further includes: a first shunt pipeline and a second shunt pipeline;

[0024] Wherein, both the first shunt pipeline and the second shunt pipeline are located downstream of the experimental cabin and are both close to the experimental cabin, and the inlets of the first shunt pipeline and the second shunt pipeline are both connected to the experimental cabin, and the outlets of the first shunt pipeline and the second shunt pipeline are both connected to the main pipeline, and an eighth valve is connected to the main pipeline at a position close to the experimental cabin, a ninth valve is connected to the first shunt pipeline, and a tenth valve is connected to the second shunt pipeline.

[0025] Preferably, a swirl pipe fitting is detachably connected to the main pipeline, and the swirl pipe fitting is located upstream of the experimental cabin and is close to the experimental cabin.

[0026] Preferably, a swirl adjustment disc is detachably connected to the swirl pipe fitting.

[0027] Preferably, a stirrer is connected inside the liquid storage tank.

[0028] Through the above technical solutions, compared with the prior art, the present invention discloses a particle erosion simulation experimental device for a wellhead collection device, and the following technical effects can be achieved:

[0029] With the above technical solution, the present invention can conduct erosion wear model experiments on the wellhead collection device with liquid-solid two-phase fluid, gas-solid two-phase fluid, and gas-liquid-solid three-phase fluid, so as to observe the erosion wear degree of the wellhead collection device under the conditions of liquid-solid two-phase fluid, gas-solid two-phase fluid, and gas-liquid-solid three-phase fluid respectively, and understand the flow laws of liquid-solid two-phase fluid, gas-solid two-phase fluid, and gas-liquid-solid three-phase fluid. Therefore, it is convenient to make detection guidelines for the wellhead collection device in different fluids, which brings convenience to detection.

[0030] The present invention can simulate the influence of the flow state of the fluid, the flow velocity of the fluid, the temperature of the fluid, the pressure of the fluid, the content of particles in the fluid, the type of particles in the fluid, and the flow direction of the fluid on the wellhead collection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0032] Figure 1 It is a schematic structural diagram of Embodiment 1 in the present invention;

[0033] Figure 2 It is a schematic structural diagram of Embodiment 2 in the present invention;

[0034] Figure 3 It is a schematic structural diagram of Embodiment 3 in the present invention;

[0035] Figure 4 It is a schematic structural diagram of Embodiment 4 in the present invention;

[0036] Figure 5 It is a schematic structural diagram of Embodiment 5 in the present invention;

[0037] Figure 6 It is a schematic structural diagram of Embodiment 6 in the present invention;

[0038] Figure 7 It is a schematic structural diagram of Embodiment 7 in the present invention;

[0039] Figure 8 It is a schematic structural diagram of Embodiment 8 in the present invention;

[0040] Figure 9 It is a front view of the swirl pipe fitting of the present invention;

[0041] Figure 10 It is a top view of the swirl pipe fitting of the present invention;

[0042] Figure 11 This is a schematic structural view of the structure for connecting a swirl adjustment disc to the swirl pipe fitting of the present invention;

[0043] Figure 12 This is a schematic structural view of the resistance reducer of the present invention;

[0044] Figure 13 This is a schematic structural view of the reverse swirl regulator of the present invention;

[0045] Figure 14 This is a schematic structural view of the present invention connected with an eleventh valve;

[0046] Figure 15 This is a schematic structural view of the experimental cabin of the present invention;

[0047] Figure 16 This is a schematic structural view of the half shell of the present invention;

[0048] Figure 17 This is a schematic structural view of the wellhead collection device of the present invention when the wellhead collection device is a four-way pipe fitting and the test piece of the wellhead collection device is 1 / 2 of the wellhead collection device;

[0049] Figure 18 This is a schematic structural view of the wellhead collection device of the present invention when the wellhead collection device is a four-way pipe fitting and the test piece of the wellhead collection device is 3 / 4 of the wellhead collection device.

[0050] Among them, 1 - gas flow pipeline; 2 - liquid flow pipeline; 3 - main pipeline; 4 - first branch pipeline; 5 - second branch pipeline; 11 - experimental cabin; 12 - waste gas treatment device; 13 - liquid storage tank; 14 - air compressor; 15 - particle adder; 16 - liquid pump; 17 - image acquisition device; 21 - first valve; 22 - second valve; 23 - third valve; 24 - fourth valve; 31 - gas flowmeter; 32 - liquid flowmeter; 25 - fifth valve; 26 - sixth valve; 33 - first pressure sensor; 34 - second pressure sensor; 18 - gas storage tank; 19 - cold dryer; 35 - first temperature sensor; 36 - second temperature sensor; 6 - flow rate control branch pipeline; 27 - seventh valve; 7 - first shunt pipeline; 8 - second shunt pipeline; 28 - eighth valve; 29 - ninth valve; 210 - tenth valve; 211 - eleventh valve; 9 - swirl pipe fitting; 91 - horizontal pipe; 92 - vertical pipe; 93 - swirl adjustment disc; 931 - first flange; 932 - plate; 94 - adapter pipe; 933 - second flange; 934 - fan blade; 111 - half shell; 110 - installation area; 112 - connecting plate. Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0052] An embodiment of the present invention discloses a particle erosion simulation experimental device for a wellhead collection device, including: a gas flow pipeline 1, a liquid flow pipeline 2, a main pipeline 3, a first branch pipeline 4, a second branch pipeline 5, an experimental chamber 11, an exhaust gas treatment device 12, a liquid storage tank 13, an air compressor 14, a particle adder 15, a liquid pump 16, an image acquisition device 17, and a computer. The experimental chamber 11 is transparent, and a specimen of the wellhead collection device is installed in the experimental chamber 11.

[0053] Among them, the inlet of the main pipeline 3 is respectively connected to the outlet of the gas flow pipeline 1 and the outlet of the liquid flow pipeline 2. The outlet of the main pipeline 3 is respectively connected to the inlet of the first branch pipeline 4 and the inlet of the second branch pipeline 5. At the same time, the experimental chamber 11 is connected to the main pipeline 3. The outlet of the first branch pipeline 4 is connected to the exhaust gas treatment device 12, and the outlet of the second branch pipeline 5 is connected to the liquid storage tank 13. A first valve 21 is connected to the first branch pipeline 4, and a second valve 22 is connected to the second branch pipeline 5. The inlet of the liquid flow pipeline 2 is connected to the liquid storage tank 13, and the inlet of the gas flow pipeline 1 is connected to the air compressor 14.

[0054] Furthermore, the particle adder 15 is connected to the gas flow pipeline 1. At the same time, a third valve 23 is connected to the gas flow pipeline 1, and the third valve 23 is close to the main pipeline 3.

[0055] The liquid pump 16 is connected to the liquid flow pipeline 2. At the same time, a fourth valve 24 is connected to the liquid flow pipeline 2, and the fourth valve 24 is close to the main pipeline 3.

[0056] The image acquisition device 17 is installed outside the experimental chamber 11 corresponding to the position of the image acquisition device 17 and is electrically connected to the computer.

[0057] By adopting the above technical solutions, the present invention can carry out simulation experiments on the erosion and wear of the wellhead collection device by liquid-solid two-phase fluids, gas-solid two-phase fluids, and gas-liquid-solid three-phase fluids, so as to observe the erosion and wear degrees of the wellhead collection device under the conditions of liquid-solid two-phase fluids, gas-solid two-phase fluids, and gas-liquid-solid three-phase fluids, and to understand the flow laws of liquid-solid two-phase fluids, gas-solid two-phase fluids, and gas-liquid-solid three-phase fluids. Therefore, it is convenient to make detection guidelines for the wellhead collection device in different fluids, which brings convenience to detection. Among them:

[0058] As Figure 1 : Experiment 1: When conducting a gas-solid two-phase experiment: Turn on the air compressor 14, the particle adder 15, the third valve 23, and the first valve 21. Then, the air compressor 14 supplies gas to the gas flow pipeline 1, the particle adder 15 adds particles to the gas flow pipeline 1, and the quantity of the added particles is controlled;

[0059] The gas medium carrying solid particles sequentially passes through the gas flow pipeline 1, the third valve 23, and the upstream of the main pipeline 3 and enters the experimental chamber 11. After flowing through the experimental chamber 11, it passes through the downstream of the main pipeline 3 and enters the waste gas treatment device 12 through the first valve 21, so that the waste gas treatment device 12 can purify the gas. Moreover, the solid particles entering the waste gas treatment device 12 along with the gas medium can be sent to the particle adder 15 for recycling;

[0060] During the above experimental process, the image acquisition device 17 captures images or videos of the gas containing solid particles in the experimental chamber 11 and transmits the captured information to the computer for subsequent analysis, so as to understand the flow law of the gas-solid two-phase fluid. When the experiment is over, the wellhead acquisition device in the experimental chamber 11 can be taken out to conduct surface morphology analysis and specimen weight loss test on the wellhead acquisition device, etc., so as to test the erosion and wear specimen and understand the erosion and wear degree of the wellhead acquisition device, thereby providing information for formulating a detection policy for the wellhead acquisition device in the gas-solid fluid, so as to better detect the wellhead acquisition device in the gas-solid fluid.

[0061] Experiment 2: When conducting a liquid-solid two-phase experiment: Turn on the liquid pump 16, the fourth valve 24, and the second valve 22, and a certain amount of solid particles are mixed in the liquid in the liquid storage tank 13. Then, under the pumping action of the liquid pump 16, the liquid-solid fluid in the liquid storage tank 13 sequentially passes through the liquid flow pipeline 2, the fourth valve 24, and the upstream of the main pipeline 3 and enters the experimental chamber 11. After flowing through the experimental chamber 11, it passes through the downstream of the main pipeline 3 and enters the liquid storage tank 13 through the second valve 22, so that the liquid can be recycled;

[0062] During the above experimental process, the image acquisition device 17 captures images or videos of the liquid containing solid particles in the experimental chamber 11 and transmits the captured information to the computer for subsequent analysis, so as to understand the flow law of the liquid-solid two-phase fluid. When the experiment is over, the wellhead acquisition device in the experimental chamber 11 can be taken out to conduct surface morphology analysis and specimen weight loss test on the wellhead acquisition device, etc., so as to test the erosion and wear specimen and understand the erosion and wear degree of the wellhead acquisition device, thereby providing information for formulating a detection policy for the wellhead acquisition device in the liquid-solid fluid, so as to better detect the wellhead acquisition device in the liquid-solid fluid.

[0063] Experiment 3: When conducting the gas-liquid-solid three-phase experiment: combining Experiment 1 and Experiment 2, with the differences being: 1) The particle adder 15 no longer works, and the gas flow pipeline 1 only provides gas, that is, the solid particles are still placed in the liquid storage tank 13 in advance as in Experiment 2, so as to provide the liquid-solid two-phase fluid through the liquid flow pipeline 2, and the gas flow pipeline 1 only provides gas; 2) The gas-liquid-solid three-phase fluid passing through the experiment chamber 11 enters the liquid storage tank 13 through the downstream of the main pipeline 3 via the second valve 22, that is, the first valve 21 is closed, and the gas-liquid-solid three-phase fluid passing through the experiment chamber 11 no longer enters the waste gas treatment device 12.

[0064] During the above experimental process, the image acquisition device 17 captures images or videos of the gas-liquid fluid containing solid particles in the experiment chamber 11 and transmits the captured information to the computer for subsequent analysis, so as to understand the flow law of the gas-liquid-solid three-phase fluid; when the experiment is over, the wellhead acquisition device in the experiment chamber 11 can be taken out to conduct topographic analysis and specimen weight loss test on the surface of the wellhead acquisition device, etc., so as to test the erosion wear specimen to understand the erosion wear degree of the wellhead acquisition device, thereby providing information for formulating a detection policy for the wellhead acquisition device in the gas-liquid-solid fluid, so as to better detect the wellhead acquisition device in the gas-liquid-solid fluid.

[0065] Comparing Experiment 1, Experiment 2, and Experiment 3 will compare the erosion wear degrees of the wellhead acquisition device in the liquid-solid two-phase fluid, gas-solid two-phase fluid, and gas-liquid-solid three-phase fluid respectively, and understand the flow laws of the liquid-solid two-phase fluid, gas-solid two-phase fluid, and gas-liquid-solid three-phase fluid. Therefore, it is convenient to formulate a detection policy for the wellhead acquisition device in different fluids to facilitate detection.

[0066] The variable in the above three experiments is the fluid property passing through the experiment chamber 11, that is, the liquid-solid two-phase fluid, gas-solid two-phase fluid, or gas-liquid-solid three-phase fluid. Then in the above three experiments, the solid particle content in the three experiments is controlled to be the same.

[0067] If we want to study the influence of the solid particle content in the fluid on the wellhead acquisition device, then multiple groups of experiments are conducted under the condition that the fluid property passing through the experiment chamber 11 is the same (that is, the fluid property in multiple groups of experiments is all the liquid-solid two-phase fluid, or all the gas-solid two-phase fluid, or all the gas-liquid-solid three-phase fluid), and the solid particle content in the fluid in multiple groups of experiments is different.

[0068] If one wants to study the influence of the types of solid particles in a fluid on the wellhead collection device, then multiple sets of experiments are carried out under the condition that the fluid properties passing through the experimental chamber 11 are the same (that is, the fluid properties of multiple sets of experiments are all liquid-solid two-phase fluids, or all gas-solid two-phase fluids, or all gas-liquid-solid three-phase fluids), and the content of solid particles in the fluid in multiple sets of experiments is the same, and at the same time, the types of solid particles in the fluid in multiple sets of experiments are different.

[0069] Among them, the image acquisition device 17, the waste gas treatment device 12, and the particle adder 15 are all prior arts. For example, the image acquisition device 17 can be a high-speed camera (prior art); the waste gas treatment device 12 can be a dust collector (prior art); the particle adder 15 can be a funnel-type solid feeder (funnel in the prior art);

[0070] In addition, after the captured information is transmitted to the computer, the subsequent analysis is common knowledge in the art and will not be elaborated here.

[0071] Such as Figures 15 - 16 , the experimental chamber 11 is formed by detachably connecting two half shells 111 through multiple bolts. At the same time, the joint between the two half shells 111 can be sealed with tape or the like, and the structural shape formed by connecting the two half shells 111 corresponds to the shape of the wellhead collection device. For example: when the wellhead collection device is a four-way pipe fitting, the shape of the experimental chamber 11 formed by connecting the two half shells 111 is the same as the shape of the four-way pipe fitting (but there will be connecting plates 112 for threaded connection extending on the two half shells 111), and an installation area 110 is provided in the experimental chamber 11;

[0072] The specimen of the wellhead collection device can be a complete wellhead collection device or a partial structure cut from the wellhead collection device. Taking the wellhead collection device as a four-way pipe fitting as an example, when the specimen of the wellhead collection device is a complete wellhead collection device, after the specimen of the wellhead collection device is correspondingly embedded in the position of the corresponding installation area 110 of the half shell 111, another half shell 111 is covered, and the two half shells 111 are detachably connected through multiple bolts. At the same time, the joint between the two half shells 111 is sealed with tape or the like; when the specimen of the wellhead collection device is 1 / 2 part of the wellhead collection device (such as Figure 17),then an installation part needs to cooperate with the test piece of the wellhead acquisition device. That is, at this time, the installation part is the other 1 / 2 part of the wellhead acquisition device, so that the test piece of the wellhead acquisition device and the installation part can be assembled into a complete four-way pipe fitting. After the complete four-way pipe fitting assembled by the test piece of the wellhead acquisition device and the installation part is embedded in the position of the corresponding installation area 110 of a half shell 111, another half shell 111 is covered, and the two half shells 111 are detachably connected by a plurality of bolts. At the same time, the joint between the two half shells 111 is sealed with tape, etc.; when the test piece of the wellhead acquisition device is 1 / 4 part of the wellhead acquisition device (such as Figure 18 ),then the installation part needs to cooperate with the test piece of the wellhead acquisition device. That is, at this time, the installation part is the other 3 / 4 part of the wellhead acquisition device, so that the test piece of the wellhead acquisition device and the installation part can be assembled into a complete four-way pipe fitting. After the complete four-way pipe fitting assembled by the test piece of the wellhead acquisition device and the installation part is embedded in the position of the corresponding installation area 110 of a half shell 111, another half shell 111 is covered, and the two half shells 111 are detachably connected by a plurality of bolts. At the same time, the joint between the two half shells 111 is sealed with tape, etc.

[0073] Such as Figure 2 , Embodiment 2: To further optimize the above technical solution, it further includes: a gas flowmeter 31, a liquid flowmeter 32, a fifth valve 25 and a sixth valve 26;

[0074] Among them, the gas flowmeter 31 and the fifth valve 25 are both connected to the gas circulation pipeline 1 and are both located between the third valve 23 and the air compressor 14. At the same time, the fifth valve 25 is close to the air compressor 14;

[0075] The liquid flowmeter 32 and the sixth valve 26 are both connected to the liquid circulation pipeline 2 and are both located between the fourth valve 24 and the liquid pump 16. At the same time, the sixth valve 26 is close to the liquid pump 16.

[0076] With the above technical solutions adopted in this application, on the basis of the above embodiments, the fifth valve 25 is used to control the flow rate of the fluid in the gas flow pipeline 1, and the gas flowmeter 31 is used to detect the flow rate of the fluid in the gas flow pipeline 1; the sixth valve 26 is used to control the flow rate of the fluid in the liquid flow pipeline 2, and the liquid flowmeter 32 is used to detect the flow rate of the fluid in the liquid flow pipeline 2. Then, multiple experiments can be carried out under the condition that the fluid properties passing through the experimental chamber 11 are the same (that is, the fluid properties in multiple groups are all liquid-solid two-phase fluids, or all gas-solid two-phase fluids, or all gas-liquid-solid three-phase fluids), and the content of solid particles in the fluid in multiple groups of experiments is the same. And in the corresponding experiments, the flow rates in the gas flow pipeline 1 and / or the liquid flow pipeline 2 are controlled to be different, that is, the flow rate is the variable in the corresponding experiment, so as to study the influence of the fluid flow rate (flow velocity) on the wellhead acquisition device, which is beneficial to the detection of the wellhead acquisition device.

[0077] In addition, according to the experimental requirements, multiple variables can be carried out in one experiment, and the principle of each variable in the corresponding experiment is the same as that of the variable in the single-variable experiment (which has been described above), so it will not be elaborated here.

[0078] Such as Figure 3 , Embodiment 3: To further optimize the above technical solution, it further includes: a first pressure sensor 33 and a second pressure sensor 34;

[0079] Both the first pressure sensor 33 and the second pressure sensor 34 are connected to the main pipeline 3, and the first pressure sensor 33 is close to the inlet end of the main pipeline 3, and the second pressure sensor 34 is close to the outlet end of the main pipeline 3.

[0080] In this embodiment, on the basis of Embodiment 2, the first pressure sensor 33 and the second pressure sensor 34 can be used to detect the pressure on the main pipeline 3, that is, the pressure of the fluid is the variable in the corresponding experiment, so as to study the influence of the fluid pressure on the wellhead acquisition device, which is beneficial to the detection of the wellhead acquisition device.

[0081] In addition, according to the experimental requirements, multiple variables can be carried out in one experiment, and the principle of each variable in the corresponding experiment is the same as that of the variable in the single-variable experiment (which has been described above), so it will not be elaborated here.

[0082] Such as Figure 4 , Embodiment 4: To further optimize the above technical solution, a gas storage tank 18 and a cold dryer 19 are respectively connected to the gas flow pipeline 1, and both the gas storage tank 18 and the cold dryer 19 are located between the air compressor 14 and the fifth valve 25, and at the same time, the cold dryer 19 is close to the fifth valve 25.

[0083] On the basis of any of the above embodiments, this embodiment can stabilize the gas pressure and flow rate in the pipeline through the gas storage tank 18, and the refrigerant dryer 19 is used to dry the gas medium, so as to introduce the dried gas required for the experiment into the experimental pipeline.

[0084] As Figure 5 , Embodiment 5: To further optimize the above technical solution, it further includes: a first temperature sensor 35, a second temperature sensor 36 and a heater;

[0085] Both the first temperature sensor 35 and the second temperature sensor 36 are connected to the main pipeline 3, and the first temperature sensor 35 is close to the inlet end of the main pipeline 3, and the second temperature sensor 36 is close to the outlet end of the main pipeline 3;

[0086] The heater is connected to the outer wall of the liquid storage tank 13, and the heating part of the heater penetrates through the tank wall of the liquid storage tank 13 and is located in the inner cavity of the liquid storage tank 13.

[0087] On the basis of any of the above embodiments, this embodiment can control the liquid temperature in the liquid storage tank 13 through the heater, and collect the temperature information of the fluid in the main pipeline 3 through the first temperature sensor 35 and the second temperature sensor 36. Even if the temperature of the fluid is a variable in the corresponding experiment, the influence of the fluid temperature on the wellhead acquisition device can be studied, which is beneficial to the detection of the wellhead acquisition device.

[0088] In addition, according to the experimental requirements, multiple variables can be carried out in one experiment, and the principle of each variable in the corresponding experiment is the same as that of the variable in the single-variable experiment (which has been recorded above), so it will not be elaborated here.

[0089] Among them, the heater is a prior art. For example, the heater can be an explosion-proof liquid heater.

[0090] As Figure 6 , Embodiment 6: To further optimize the above technical solution, it further includes: a flow rate control branch pipeline 6. The inlet end and the outlet end of the flow rate control branch pipeline 6 are both connected to the liquid circulation pipeline 2. At the same time, a seventh valve 27 is connected to the flow rate control branch pipeline 6, and the seventh valve 27 is respectively connected in parallel with the sixth valve 26 and the liquid pump 16.

[0091] This embodiment can be carried out on the basis of any of the above embodiments. When the liquid pump 16 is not an infinitely variable speed pump, the flow rate flowing into the main pipeline 3 cannot be adjusted. By setting the flow rate control branch pipeline 6 and connecting the seventh valve 27 to the branch pipeline 6, the flow rate flowing into the main pipeline 3 can be reduced by opening the seventh valve 27.

[0092] As Figure 7, Example 7, to further optimize the above technical solution, it further includes: a first shunt pipeline 7 and a second shunt pipeline 8;

[0093] Wherein, both the first shunt pipeline 7 and the second shunt pipeline 8 are located downstream of the experimental chamber 11 and are both close to the experimental chamber 11. The inlets of the first shunt pipeline 7 and the second shunt pipeline 8 are both connected to the experimental chamber 11. At the same time, the outlets of the first shunt pipeline 7 and the second shunt pipeline 8 are both connected to the main pipeline 3. And an eighth valve 28 is connected to the position of the main pipeline 3 close to the experimental chamber 11. A ninth valve 29 is connected to the first shunt pipeline 7, and a tenth valve 210 is connected to the second shunt pipeline 8.

[0094] This embodiment can be carried out on the basis of any of the above embodiments. By controlling the combination of the opening and closing states of the eighth valve 28, the ninth valve 29, and the tenth valve 210 in this application, the flow direction of the fluid can be made different. For example, when the eighth valve 28 is controlled to open while the ninth valve 29 and the tenth valve 210 are closed, the fluid directly enters the downstream pipeline of the main pipeline 3 after passing through the experimental chamber 11 from the upstream of the main pipeline 3; when the ninth valve 29 is controlled to open while the eighth valve 28 and the tenth valve 210 are closed, the fluid passes through the experimental chamber 11 from the upstream of the main pipeline 3 and then first enters the first shunt pipeline 7 and then enters the downstream of the main pipeline 3; when the tenth valve 210 is controlled to open while the eighth valve 28 and the ninth valve 29 are closed, the fluid passes through the experimental chamber 11 from the upstream of the main pipeline 3 and then first enters the second shunt pipeline 8 and then enters the downstream of the main pipeline 3. In the case of the above three paths of the fluid, the scouring positions of the wellhead collection device in the experimental chamber 11 will be different. Therefore, this application can use the flow direction of the fluid as a variable to study the erosion and wear degree of the wellhead collection device under different fluid flow directions, so as to facilitate the detection work of the wellhead collection device.

[0095] Such as Figure 8 , Example 8, to further optimize the above technical solution, a swirl fitting 9 is detachably connected to the main pipeline 3, and the swirl fitting 9 is located upstream of the experimental chamber 11 and is close to the experimental chamber 11.

[0096] This embodiment can be carried out on the basis of any of the above embodiments. By means of the swirl fitting 9 in this application, the flow state of the fluid is no longer a direct flow state before entering the experimental chamber 11. Therefore, this embodiment can study the erosion and wear degree of the wellhead collection device by the fluid in a swirl state.

[0097] Among them, the principle of the flow fitting 9 to form a swirl is the same as that of the swirl tee fitting on the market. The structure of the flow fitting 9 in this application and the swirl tee fitting on the market is that the flow fitting 9 in this application is a two-way. Specifically: Such as Figures 9 - 10, the swirl pipe fitting 9 includes: a horizontal pipe 91 and a vertical pipe 92. One end of the horizontal pipe 91 is a circular port, and the other end is a semi-circular port. At the same time, the side wall of the horizontal pipe 91 corresponding to the right-angle side of its semi-circular port is an inclined plane; the vertical pipe 92 is a hollow cylindrical shape with one end being an open end and the other end being a closed end; the horizontal pipe 91 and the vertical pipe 92 are perpendicularly distributed, and the semi-circular port of the horizontal pipe 91 is close to the closed end of the vertical pipe 92 and is connected to the side wall of the vertical pipe 92. The connection between the side wall of the vertical pipe 92 and the semi-circular port of the horizontal pipe 91 is through, so as to form a semi-circular interface between the vertical pipe 92 and the horizontal pipe 91. At the same time, the circular port of the horizontal pipe 91 is connected to the upstream pipe orifice of the main pipeline 3, and the open end of the vertical pipe 92 is connected to the experimental chamber 11. Thus, the fluid in the horizontal pipe 91 enters the vertical pipe 92 through the semi-circular interface between the horizontal pipe 91 and the vertical pipe 92, and then a swirl is formed at the semi-circular interface between the horizontal pipe 91 and the vertical pipe 92.

[0098] As Figure 11 , in order to further optimize the above technical solution, a swirl adjustment disk 93 is detachably connected to the swirl pipe fitting 9.

[0099] Among them, the swirl adjustment disk 93 can be a resistance reducer, a clockwise rotation adjuster or a counterclockwise rotation adjuster.

[0100] As Figures 11 - 12 , the resistance reducer includes: a first flange 931 and a plurality of plates 932. The plurality of plates 932 are radially located in the central hole of the first flange 931 and are perpendicular to the inner wall of the central hole of the first flange 931. Moreover, each adjacent two plates 932 are spaced apart. At the same time, one ends of the plurality of plates 93 are connected together, and the connection part of the plurality of plates 93 is located at the center of the central hole of the first flange 931, and the other ends of the plurality of plates 932 are all connected to the inner wall of the central hole of the first flange 931.

[0101] During the use of the resistance reducer, the first flange 931 is connected to the pipe orifice of the vertical pipe 92 far from the horizontal pipe 91, and the central hole of the first flange 931 is concentrically arranged with the open end of the vertical pipe 92. Then, a transfer pipe 94 is connected to the other end face of the first flange 931. At the same time, the circular port of the horizontal pipe 91 is connected to the upstream pipe orifice of the main pipeline 3, and the other end of the transfer pipe 94 is connected to the experimental chamber 11. Thus, the fluid in the horizontal pipe 91 enters the vertical pipe 92 through the semi-circular interface between the horizontal pipe 91 and the vertical pipe 92. Not only does it become a swirl state, but also during the process that the fluid sequentially flows into the experimental chamber 11 through the vertical pipe 92, the gaps between the plurality of plates 932 and the transfer pipe 94, the plurality of plates 93 in the resistance reducer will obstruct the fluid flowing through the vertical pipe 92, so as to generate resistance to the fluid. Therefore, this embodiment can simulate the erosion and wear degree of the wellhead collection device under the condition that the water flow in the swirl state is blocked.

[0102] As Figure 11 and Figure 13 shown in Figure 11 and Figure 13 , the structure of the reverse rotation regulator includes: a second flange 933 and a plurality of fan blades 934. The plurality of fan blades 934 are radially located in the central hole of the second flange 933, and the rotation direction formed between the plurality of fan blades 934 is opposite to the rotation direction of the swirl flow in the vertical pipe 92. Moreover, every two adjacent fan blades 934 are arranged at intervals. At the same time, one ends of the plurality of fan blades 934 are connected together, and the connection part of the plurality of fan blades 934 is located at the center of the central hole of the second flange 933, and the other ends of the plurality of fan blades 934 are all connected to the inner wall of the central hole of the second flange 933.

[0103] During the use of the reverse rotation regulator, the second flange 933 is connected to the pipe orifice at the end of the vertical pipe 92 far from the horizontal pipe 91, and the central hole of the second flange 933 is concentrically arranged with the opening of the vertical pipe 92. Then, a connecting pipe 94 is connected to the other end surface of the second flange 933. At the same time, the circular port of the horizontal pipe 91 is connected to the upstream pipe orifice of the main pipeline 3, and the other end of the connecting pipe 94 is connected to the experimental cabin 11. Thus, when the fluid in the horizontal pipe 91 enters the vertical pipe 92 through the semi-circular interface between the horizontal pipe 91 and the vertical pipe 92, it not only becomes a swirl state, but also during the process that the fluid sequentially flows through the vertical pipe 92, the gap between the plurality of fan blades 934 and the connecting pipe 94 and flows into the experimental cabin 11, the plurality of fan blades 934 in the reverse rotation regulator will strongly obstruct the fluid flowing through the vertical pipe 92, so as to generate a strong resistance to the fluid. Therefore, this embodiment can simulate the erosion and wear degree of the wellhead collection device under the condition of stronger obstruction of the water flow in the swirl state.

[0104] The forward rotation regulator has the same component elements as the reverse rotation regulator. The difference in the structure between the forward rotation regulator and the reverse rotation regulator lies in that: the rotation direction formed between the plurality of fan blades 934 in the forward rotation regulator is the same as the rotation direction formed in the vertical pipe 92, so as to improve the fluid flow force. Therefore, this embodiment can simulate the erosion and wear degree of the wellhead collection device under the condition of enhanced fluid flow force in the swirl state of the water flow.

[0105] To further optimize the above technical solution, a stirrer is connected inside the liquid storage tank 13.

[0106] Among them, the structure of the stirrer is prior art. For example, a motor is connected to the outer wall of the liquid storage tank 13. There is a stirring shaft inside the liquid storage tank 13, and a plurality of stirring blades are connected to the bottom end of the stirring shaft. The top end of the stirring shaft penetrates through the top end of the liquid storage tank 13 and is connected to the output shaft of the motor. Thus, the motor can drive the stirring shaft to rotate, so as to stir the mixture of solid particles and liquid in the liquid storage tank 13, making the solid particles and liquid in the liquid storage tank 13 mix more evenly.

[0107] As Figure 14, To further optimize the above technical solution, an eleventh valve 211 is connected to the liquid circulation pipeline 2, and the eleventh valve 211 is close to the liquid storage tank 13.

[0108] In this embodiment, the function of the eleventh valve 211 is: when the eleventh valve 211 is closed, it is convenient for disassembly.

[0109] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is the difference from other embodiments. The same or similar parts among the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple. For the relevant parts, refer to the description in the method part.

[0110] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A particle erosion simulation experimental device for a wellhead acquisition device, characterized in that Comprising: A gas flow pipeline (1), a liquid flow pipeline (2), a main pipeline (3), a first branch pipeline (4), a second branch pipeline (5), an experimental chamber (11), an exhaust gas treatment device (12), a liquid storage tank (13), an air compressor (14), a particle adder (15), a liquid pump (16), an image acquisition device (17) and a computer, and the experimental chamber (11) is transparent, and at the same time, a specimen of a wellhead acquisition device is installed in the experimental chamber (11); Wherein, the inlet of the main pipeline (3) is respectively connected to the outlet of the gas flow pipeline (1) and the outlet of the liquid flow pipeline (2), the outlet of the main pipeline (3) is respectively connected to the inlet of the first branch pipeline (4) and the inlet of the second branch pipeline (5), and at the same time, the experimental chamber (11) is connected to the main pipeline (3); the outlet of the first branch pipeline (4) is connected to the exhaust gas treatment device (12), the outlet of the second branch pipeline (s5) is connected to the liquid storage tank (13), and a first valve (21) is connected to the first branch pipeline (4), and a second valve (22) is connected to the second branch pipeline (5); the inlet of the liquid flow pipeline (2) is connected to the liquid storage tank (13), and at the same time, the inlet of the gas flow pipeline (1) is connected to the air compressor (14); And, the particle adder (15) is connected to the gas flow pipeline (1), and at the same time, a third valve (23) is connected to the gas flow pipeline (1), and the third valve (23) is close to the main pipeline (3); the liquid pump (16) is connected to the liquid flow pipeline (2), and at the same time, a fourth valve (24) is connected to the liquid flow pipeline (2), and the fourth valve (24) is close to the main pipeline (3); The image acquisition device (17) is erected outside the experimental chamber (11) corresponding to the position of the image acquisition device (17) and is electrically connected to the computer; Further comprising: a first shunt pipeline (7) and a second shunt pipeline (8); wherein, both the first shunt pipeline (7) and the second shunt pipeline (8) are located downstream of the experimental chamber (11) and are both close to the experimental chamber (11), and the inlets of the first shunt pipeline (7) and the second shunt pipeline (8) are both connected to the experimental chamber (11), and at the same time, the outlets of the first shunt pipeline (7) and the second shunt pipeline (8) are both connected to the main pipeline (3), and an eighth valve (28) is connected to the main pipeline (3) at a position close to the experimental chamber (11), a ninth valve (29) is connected to the first shunt pipeline (7), and a tenth valve (210) is connected to the second shunt pipeline (8); A swirl pipe fitting (9) is detachably connected to the main pipeline (3), and the swirl pipe fitting (9) is located upstream of the experimental chamber (11) and is close to the experimental chamber (11); A swirl adjustment disk (93) is detachably connected to the swirl pipe fitting (9).

2. The particle erosion simulation experimental device for the wellhead acquisition device according to claim 1, wherein It further includes: a gas flowmeter (31), a liquid flowmeter (32), a fifth valve (25), and a sixth valve (26); Among them, the gas flowmeter (31) and the fifth valve (25) are both connected to the gas flow pipeline (1), and are both located between the third valve (23) and the air compressor (14), and at the same time, the fifth valve (25) is close to the air compressor (14); The liquid flowmeter (32) and the sixth valve (26) are both connected to the liquid flow pipeline (2), and are both located between the fourth valve (24) and the liquid pump (16), and at the same time, the sixth valve (26) is close to the liquid pump (16).

3. A particle erosion simulation experimental device for a wellhead acquisition device according to claim 2, characterized in that, It further includes: a first pressure sensor (33) and a second pressure sensor (34); The first pressure sensor (33) and the second pressure sensor (34) are both connected to the main pipeline (3), and the first pressure sensor (33) is close to the inlet end of the main pipeline (3), and the second pressure sensor (34) is close to the outlet end of the main pipeline (3).

4. A particle erosion simulation experimental device for a wellhead acquisition device according to claim 2, characterized in that, A gas storage tank (18) and a refrigerated dryer (19) are respectively connected to the gas flow pipeline (1), and the gas storage tank (18) and the refrigerated dryer (19) are both located between the air compressor (14) and the fifth valve (25), and at the same time, the refrigerated dryer (19) is close to the fifth valve (25).

5. A particle erosion simulation experimental device for a wellhead acquisition device according to claim 1, characterized in that, It further includes: a first temperature sensor (35), a second temperature sensor (36), and a heater; The first temperature sensor (35) and the second temperature sensor (36) are both connected to the main pipeline (3), and the first temperature sensor (35) is close to the inlet end of the main pipeline (3), and the second temperature sensor (36) is close to the outlet end of the main pipeline (3); The heater is connected to the outer wall of the liquid storage tank (13), and the heating part of the heater penetrates through the tank wall of the liquid storage tank (13) and is located in the inner cavity of the liquid storage tank (13).

6. The particle erosion simulation experimental device for the wellhead acquisition device according to claim 2, wherein It further includes: a flow rate control branch pipeline (6), the inlet end and the outlet end of the flow rate control branch pipeline (6) are both connected to the liquid flow pipeline (2), and at the same time, a seventh valve (27) is connected to the flow rate control branch pipeline (6), and the seventh valve (27) is respectively connected in parallel with the sixth valve (26) and the liquid pump (16).

7. A particle erosion simulation experimental device for a wellhead acquisition device according to claim 1, characterized in that, A stirrer is connected inside the liquid storage tank (13).

Images