Performance testing system and method for whole-cylinder type oil well pump

Abstract

The invention discloses a whole cylinder type oil well pump performance test system and method. According to the system, a lifting hydraulic cylinder is arranged on a first support, a rotating support is arranged on the lifting hydraulic cylinder, and a driving assembly and a lead screw sliding table are arranged on the rotating support; during testing, the tested pump is fixed on the rotating support, the hydraulic control unit is started, and the hole drift angle of the rotating support is adjusted through the lifting hydraulic cylinder according to a set working curve; the tested pump is driven by the driving assembly and the lead screw sliding table to do reciprocating motion, then the detection unit is used for collecting test data, and finally a test result is obtained through calculation and analysis of the test data. The system can simulate a plunger motion curve of an actual oil pumping unit, realizes adjustment of different hole drift angles, pump opening sinking pressure, swabbing (pumping down) depth, gas-oil ratio, swabbing stroke frequency, swabbing stroke and the like, and completes testing of pump efficiency of an oil well pump by various factors; the system can instantly obtain a performance test result, is high in automation degree, and improves the test efficiency of the whole cylinder type oil well pump.

Description

Technical Field

[0001] The present invention belongs to the technical field of oilfield development, and particularly relates to a performance test system and method for a barrel-type oil pump. Background Art

[0002] The barrel-type oil pump is an important device for mechanically extracting crude oil in the petroleum industry. By performing performance tests on the oil pump and obtaining corresponding data parameters, it is convenient to improve the structure of the oil pump, evaluate the quality, and make corresponding adjustments to the oil pump according to different blocks and working conditions. Conducting downhole inspections of the oil pump requires consuming a large amount of manpower and material resources, reducing production efficiency, and increasing production costs. By simulating the downhole working state of the oil pump on the ground, it is possible to provide strong technical support for the theoretical research of the oil pump while reducing production costs and maintenance costs.

[0003] The current oil pump test benches have single functions and low automation levels, such as the pump sealing performance and leakage measurement test bench developed by Daqing Petroleum, the leakage measurement vacuum test bench developed by Xi'an Petroleum Institute, and the pump assembly and sealing performance test bench developed by Zhongyuan Petroleum Exploration Bureau. Xu Fujun and Shang Yunsong have both developed test devices that can simulate various working conditions such as different inclinations, different stroke frequencies, and gas content, and their mechanical structures are similar. The former can complete special tests such as frictional resistance and leakage volume, and the latter has a hydraulic drive for the pump's power device with a follow-up device that can simulate the pump outlet pressure. Han Hongsheng et al. developed a test bench to explore the influence of different inclination angles on the pump efficiency, which can achieve stepless adjustment of the inclination angle from 0 to 90° and the stroke frequency. However, the existing oil pump test measures cannot customize the plunger movement curve and can only complete performance tests with single functions. Summary of the Invention

[0004] In order to overcome the above technical defects, the present invention provides a performance test system and method for a barrel-type oil pump, which can solve the technical problem that the existing oil pump test measures cannot customize the plunger movement curve and can only complete performance tests with single functions.

[0005] In order to achieve the above object, the present invention adopts the following technical content:

[0006] A performance test system for a barrel-type oil pump includes a first bracket;

[0007] A lifting hydraulic cylinder is arranged on the first bracket;

[0008] One end of the lifting hydraulic cylinder is connected to the first bracket, and the other end is fixedly connected to a rotating bracket;

[0009] A driving assembly and a lead screw slide are arranged on the rotating bracket;

[0010] The output end of the driving component is connected to the lead screw of the lead screw slide; during the test, the oil discharge end of the pump under test is sleeved on the lead screw, and the oil suction end is fixed on the rotating bracket;

[0011] The input end of the lifting hydraulic cylinder is connected with a hydraulic control unit; during the test, the output end of the hydraulic control unit is connected to the pump under test;

[0012] It further includes a detection unit for collecting the test data when the pump under test is working.

[0013] Furthermore, the first bracket is fixedly connected with a second bracket, and the second bracket is perpendicular to the first bracket; the second bracket is vertically provided with a suction cup for adsorbing the rotating bracket.

[0014] Furthermore, the driving component includes a servo motor and a reducer which are connected, both of which are fixed on the rotating bracket, and the output end of the reducer is connected to the lead screw of the lead screw slide.

[0015] Furthermore, the oil discharge end of the pump under test is sleeved on the lead screw through a third fixing bracket, the oil suction end is fixed on the rotating bracket through a first fixing bracket, and the pump body is fixed on the rotating bracket through a second fixing bracket.

[0016] Furthermore, the hydraulic control unit includes a Venturi mixer, the first outlet of the Venturi mixer is communicated with the pump under test, and the second outlet is communicated with the lifting hydraulic cylinder.

[0017] Furthermore, a first overflow valve is connected to the oil discharge port of the pump under test.

[0018] Furthermore, the oil discharge port of the pump under test is communicated with the lifting hydraulic cylinder.

[0019] Furthermore, the oil discharge port of the pump under test and the second outlet of the Venturi mixer are communicated with the lifting hydraulic cylinder through the same electromagnetic reversing valve.

[0020] Furthermore, the detection unit includes a first pressure sensor connected to the oil suction port of the pump under test, a second pressure sensor and a liquid flowmeter connected to the oil discharge port of the pump under test, and a third pressure sensor and a gas flowmeter connected to the inlet of the Venturi mixer.

[0021] A performance test method for a rodless pump, based on the above rodless pump performance test system, includes:

[0022] Set the working curve of the pump under test according to the pumping strokes per minute and the stroke length;

[0023] Fix and install the pump under test on the rotating bracket;

[0024] Start the hydraulic control unit, and adjust the well deviation angle of the rotary support by using the lifting hydraulic cylinder according to the set working curve.

[0025] Start the driving component, and drive the pump under test to reciprocate through the lead screw slide table.

[0026] Use the detection unit to collect the test data when the pump under test is working.

[0027] Store and calculate the collected test data to obtain the performance test results.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention provides a performance test system for a single-barrel oil pump. In this system, a lifting hydraulic cylinder is arranged on the first support, a rotary support is arranged on the lifting hydraulic cylinder, and a driving component and a lead screw slide table are arranged on the rotary support. During the test, the pump under test is fixed on the rotary support. Start the hydraulic control unit, and according to the set working curve, adjust the well deviation angle of the rotary support through the lifting hydraulic cylinder. Drive the pump under test to reciprocate through the driving component and the lead screw slide table, and then use the detection unit to collect the test data. Finally, calculate and analyze the test data to obtain the test results. This system can simulate the plunger movement curve of an actual pumping unit, and can realize the adjustment of different well deviation angles, pump inlet submerged pressure, pumping (lowering the pump) depth, gas-oil ratio, pumping strokes per minute, pumping stroke, etc., and complete the test of the pump efficiency of the oil pump under various factors. This system can obtain the performance test results instantaneously, has a high degree of automation, and improves the test efficiency of the single-barrel oil pump.

[0030] Preferably, in the present invention, the first support is vertically fixedly connected to the second support, and a suction cup is vertically arranged on the second support. The suction cup is preferably a magnet suction cup, which can adsorb the rotary support. When the rotary support moves from the horizontal state to the vertical state, the adsorption of the suction cup ensures the stability of the entire system during the test.

[0031] Preferably, in the present invention, the driving component includes a servo motor and a reducer connected together. The servo motor provides power output, which is transmitted to the lead screw of the lead screw slide table through the reducer. The rotation of the lead screw can drive the third fixed frame sleeved on it to move, and then drive the oil discharge end of the pump under test to reciprocate. In this way, the reliability of the reciprocating motion is ensured, and the accuracy of the simulation is further ensured.

[0032] Preferably, in the present invention, the hydraulic control unit includes a Venturi mixer. On the one hand, the Venturi mixer provides hydraulic power for the lifting hydraulic cylinder. On the other hand, it is connected to the pump under test to provide a working medium for the pump under test. This design saves the occupied area and the test cost.

[0033] Further preferably, in the present invention, the oil discharge port of the pump under test is also connected to the lifting hydraulic cylinder, so that the recycling of oil is realized, and the recyclability of the test system is enhanced.

[0034] Even further preferably, in the present invention, an electromagnetic directional control valve is provided, and the outlets of the pump under test and the Venturi mixer are simultaneously connected to the lifting hydraulic cylinder. In this way, the passage can be switched through the electromagnetic directional control valve to effectively control the oil, ensuring the stability during operation.

[0035] The present invention also provides a method for testing the performance of a barrel-type oil pump. Based on the above barrel-type oil pump performance test system, this method can solve the problems of single function and low automation degree of conventional test systems. By adjusting the AC servo drive system to set custom plunger motion laws such as trapezoidal, parabolic or sine curves, the inlet and outlet pressures, flow rates and other data of the oil pump under different working conditions are recorded in real time, and the performance test results are calculated instantaneously, meeting the test requirements of custom curves, realizing multi-functional testing, and improving the automation degree and test efficiency. Description of the Drawings

[0036] Figure 1 is a schematic structural diagram of a barrel-type oil pump performance test system provided by an embodiment of the present invention;

[0037] Figure 2 is a schematic structural diagram of a hydraulic control unit of a barrel-type oil pump performance test system provided by an embodiment of the present invention.

[0038] Reference Numerals:

[0039] 1 - First support; 2 - Lifting hydraulic cylinder; 3 - Rotating support; 4 - Second support; 5 - First fixing frame; 6 - Suction cup; 7 - Pump under test; 8 - Second fixing frame; 9 - Servo motor; 10 - Reducer; 11 - Third fixing frame; 12 - Lead screw slide; 13 - Support rod; 14 - Hydraulic control unit; 15 - Detection unit;

[0040] 101 - First pressure gauge; 102 - Second pressure gauge; 201 - First relief valve; 202 - Second relief valve; 301 - First switching valve; 302 - Second switching valve; 303 - Third switching valve; 401 - Liquid flowmeter; 501 - Gas flowmeter; 601 - Pressure reducing valve; 701 - Electromagnetic directional control valve; 801 - Throttle valve; 901 - Check valve; 1001 - Venturi mixer; 1101 - First pressure sensor; 1102 - Second pressure sensor; 1103 - Third pressure sensor. Detailed Embodiments

[0041] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clear and understandable, the following specific embodiments are used to further elaborate on the present invention in detail. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Components of the embodiments of the present invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0043] Therefore, the detailed description of the embodiments of the present invention provided in the drawings below is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0044] It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0045] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper", "lower", "horizontal", "inner", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product of the invention is usually placed during use. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0046] In addition, if the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but it can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but it can be slightly inclined.

[0047] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, if the terms "set", "installed", "connected", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0048] The following further describes the present invention in detail with reference to the accompanying drawings:

[0049] Embodiment

[0050] Combined with what is mentioned in the background technology, the current sucker rod pump test bench has a single function and low automation. For example, the pump sealing performance and leakage measurement test bench developed by Daqing Petroleum, the leakage measurement vacuum test bench developed by Xi'an Petroleum Institute, the pump assembly and sealing performance test bench developed by Zhongyuan Petroleum Exploration Bureau, etc. Xu Fujun and Shang Yunsong have both developed test devices that can simulate various working conditions such as different inclination angles, different stroke frequencies, and gas-oil ratios more comprehensively, and their mechanical structures are similar. The former can complete special tests such as frictional resistance and leakage volume, and the latter has a hydraulic drive for the pump and an additional follow-up device, which can simulate the pump outlet pressure. Han Hongsheng et al. developed a test bench to explore the influence of different inclination angles on the pump efficiency, which can achieve the adjustment of the inclination angle from 0 to 90° in steps and the stroke frequency. However, the existing sucker rod pump test measures cannot customize the plunger movement curve and can only complete the performance test of a single function.

[0051] To solve the above problems, this embodiment provides a performance test system for a full-barrel sucker rod pump. Using this test system, it is possible to simulate the plunger movement curve of an actual pumping unit and achieve the adjustment of different well deviation angles, pump inlet submerged pressure, pumping (lowering the pump) depth, gas-oil ratio, pumping stroke frequency, pumping stroke, etc., and complete the test of the influence of various factors on the pump efficiency of the sucker rod pump, effectively solving the problems of the conventional test system with a single function and low automation.

[0052] The following further details the specific structure of this embodiment with reference to the accompanying drawings:

[0053] As Figure 1 shown, this embodiment provides a performance test system for a full-barrel sucker rod pump, specifically including:

[0054] The first bracket 1, the lifting hydraulic cylinder 2, the rotating bracket 3, the drive assembly, the lead screw slide 12, the hydraulic control unit 14, and the detection unit 15.

[0055] In this embodiment, the lifting hydraulic cylinder is connected to the first bracket 1. A rotating bracket 3 is fixedly connected to the lifting hydraulic cylinder through a support rod 13. Under the action of the lifting hydraulic cylinder 2, the rotating bracket 3 can realize the rotation from the horizontal angle to the vertical angle. The well inclination angle can be changed from 0 to 90° for the entire test platform by the extension and retraction of the lifting hydraulic cylinder 2. The specific position is determined by time according to the ejection speed and stroke.

[0056] A driving assembly and a lead screw slide table 12 are fixed on the rotating bracket 3. In order to facilitate the installation of the pump under test 7, a first fixing bracket 5, a second fixing bracket 8 and a third fixing bracket 11 are respectively provided for placing the pumping end, the pump body and the oil discharging end of the pump under test 7. Among them, the third fixing bracket 11 is sleeved on the lead screw of the lead screw slide table 12. Here, an adapted lead screw nut can be used to achieve this.

[0057] The output end of the driving assembly is connected to the lead screw of the lead screw slide table 12 for providing power output.

[0058] The input end of the lifting hydraulic cylinder 2 is connected with a hydraulic control unit 14, and the output end of the hydraulic control unit 14 is connected to the pump under test 7.

[0059] In this embodiment, in order to improve the stability of the rotating bracket 3 when it rotates to the vertical direction, a second bracket 4 is vertically and fixedly connected to the first bracket 1. A suction cup 6 is vertically arranged on the second bracket 4. The suction cup 6 is preferably a magnet suction cup, which can adsorb the rotating bracket 3. When the rotating bracket 3 moves from the horizontal state to the vertical state, the adsorption of the suction cup 6 ensures the stability of the entire system during the test.

[0060] In this embodiment, the driving assembly includes a servo motor 9 and a reducer 10 connected together. The servo motor 9 provides power output, which is transmitted to the lead screw of the lead screw slide table 12 through the reducer 10. The rotation of the lead screw can drive the third fixing bracket 11 sleeved on it to move, and then drive the oil discharging end of the pump under test 7 to make a reciprocating motion. In this way, the reliability of the reciprocating motion is ensured, and thus the accuracy of the simulation is ensured.

[0061] It should be noted that the stroke parameter adjustment method is to arbitrarily set the pumping stroke by driving the position motion curve of the servo motor 9. The stroke is continuously adjustable from 0 to 1.5 m, and the maximum simulated stroke is 1.5 m.

[0062] The stroke frequency parameter adjustment method is to adjust the servo motor 9 to rotate forward and backward according to the set motion curve, which can meet the requirements of the stroke frequency of 2 / 3 / 4 / 5 / 6 min⁻¹ for quality requirements, and the set stroke frequency range can be steplessly adjusted between 1 and 6 times / min.

[0063] Such as Figure 2As shown in the figure, in this embodiment, the hydraulic control unit 14 includes a Venturi mixer 1001. A third pressure sensor 1103 and a gas flowmeter 501 are connected to the inlet pipeline of the Venturi mixer 1001. A first switching valve 301 and a second switching valve 302 are respectively arranged on two branches of the Venturi mixer 1001, and a first pressure sensor 1101 and a second pressure gauge 102 are respectively arranged at the ends. The two branches are connected through a third branch, and a third switching valve 303 is arranged on the third branch. The working oil passing through the second switching valve 302 enters the pump under test 7. A second pressure sensor 1102, a first overflow valve 201, an oil-gas separator and a liquid flowmeter 401 are successively arranged at the outlet of the pump under test 7. The working medium passing through the liquid flowmeter 401 is divided into three paths. One path is connected to the lifting hydraulic cylinder 2 through an electromagnetic directional valve 701. A second overflow valve 202 is arranged on the second path. A first pressure gauge 101 is arranged at the intersection with the second branch of the Venturi mixer 1001. A check valve 901 and a pressure reducing valve 601 are arranged on the pipeline of the second branch of the Venturi mixer 1001 at the intersection. A pipeline is connected between the check valve 901 and the pressure reducing valve 601, and this pipeline is connected to the lifting hydraulic cylinder 2 through the electromagnetic directional valve 701. A throttle valve 801 is arranged on the pipeline connecting the electromagnetic directional valve 701 and the lifting hydraulic cylinder 2. Through such a design, on the one hand, the Venturi mixer 1001 provides hydraulic power for the lifting hydraulic cylinder 2, and on the other hand, it is connected to the pump under test 7 to provide working medium for the pump under test 7. Such a design saves the occupied area and the test cost. Moreover, the oil discharge port of the pump under test 7 is also connected to the lifting hydraulic cylinder 2, so that the recycling of oil is realized, and the recyclability of the test system is enhanced. Furthermore, through the electromagnetic directional valve 701, the outlets of the pump under test and the Venturi mixer are simultaneously connected to the lifting hydraulic cylinder, so that the passage can be switched through the electromagnetic directional valve to effectively control the oil, ensuring the stability during operation.

[0064] The gas-oil ratio test of the pump under test 7 is mainly realized by a gas source, a Venturi gas-liquid mixer 1001, an electromagnetic directional valve 701, and a detection unit 15, etc. The pumping depth (outlet pressure) test of the pump under test 7 is mainly realized by an overflow valve and an accumulator, etc.

[0065] The above two overflow valves (submerged pressure and well depth pressure overflow valves) adjust the outlet (well depth) pressure reducing valve to reduce the pressure of the test system to the test inlet (submerged) pressure, thus ensuring the stability of the system operation.

[0066] In this embodiment, the detection unit 15 includes a first pressure sensor 1101 connected to the oil pumping port of the pump under test 7, a second pressure sensor 1102 connected to the oil discharging port of the pump under test 7, a liquid flowmeter 401, a third pressure sensor 1103 connected to the inlet of the Venturi mixer 1001, and a gas flowmeter 501, which is used to collect relevant flow values and pressure values for subsequent calculation and analysis.

[0067] Based on the integral barrel type oil pump performance test system provided in this embodiment, this embodiment also provides an integral barrel type oil pump performance test method, and the steps are as follows:

[0068] First step, set the working curve of the pump under test 7 according to the pumping strokes per minute and the stroke length.

[0069] Second step, fixedly install the pump under test 7 on the rotary bracket 3.

[0070] Third step, start the hydraulic control unit 14, and adjust the well deviation angle of the rotary bracket 3 by using the lifting hydraulic cylinder 2 according to the set working curve.

[0071] Fourth step, start the driving assembly, and drive the pump under test 7 to reciprocate through the lead screw slide 12.

[0072] Fifth step, use the detection unit 15 to collect the test data when the pump under test 7 is working.

[0073] Sixth step, store and calculate the collected test data to obtain the performance test result.

[0074] Furthermore, this method specifically includes the following steps:

[0075] Step 1, assemble the oil pump to be tested, and check the oil condition of the hydraulic system and the test bench.

[0076] Step 2, set the working curve of the servo drive system according to the pumping strokes per minute and the stroke length, and complete the pre - debugging.

[0077] Step 3, start the hydraulic system, adjust the lifting hydraulic cylinder, and adjust the well deviation angle.

[0078] Step 4, start the servo drive assembly to make the oil pump start to reciprocate.

[0079] Step 5, monitor and observe the inlet and outlet pressure, flow data and curves. After the oil pump works for at least 3 cycles and reaches stability, prepare to start the test.

[0080] Step 6, start data recording, set the sampling frequency to 20Hz, and record for 20 minutes.

[0081] Step 7, complete data recording and storage, organize the data and calculate the average volumetric pump efficiency.

[0082] As can be seen, this embodiment provides a performance test system and method for a monobore rodless pump, with the following effects:

[0083] (1) By adopting a brand-new erection structure, the well deviation angle, inlet pressure, outlet pressure, stroke frequency, and gas-oil ratio of this test system are continuously adjustable. Using servo drive technology, the plunger movement curve can be customized, and the stroke, stroke frequency, and speed curve can be comprehensively adjusted to simulate the movement laws of the polished rod of various rodless pumps.

[0084] (2) By adjusting the AC servo drive system to set the customized plunger movement laws such as trapezoidal, parabolic, or sine curves, this test method can record in real time data such as inlet pressure, outlet pressure, inlet flow rate, outlet flow rate, and gas flow rate. The software can simultaneously calculate the instantaneous pump efficiency and sampling frequency.

[0085] In summary, the present invention provides a performance test system for a monobore rodless pump. Compared with the existing test measures, it has the following advantages: This system is provided with a lifting hydraulic cylinder on the first bracket, a rotating bracket on the lifting hydraulic cylinder, and a driving component and a lead screw slide on the rotating bracket; during the test, the pump to be tested is fixed on the rotating bracket, the hydraulic control unit is started, and according to the set working curve, the well deviation angle of the rotating bracket is adjusted through the lifting hydraulic cylinder; the pump to be tested is driven to reciprocate by the driving component and the lead screw slide, and then the test data is collected by the detection unit. Finally, the test results are obtained through calculation and analysis of the test data; this system can simulate the plunger movement curve of an actual pumping unit, and realize the adjustment of different well deviation angles, pump mouth submerged pressure, pumping (lowering the pump) depth, gas-oil ratio, pumping stroke frequency, pumping stroke, etc., and complete the test of the influence of various factors on the pump efficiency of the rodless pump; this system can instantaneously obtain the performance test results, with a high degree of automation, and improves the test efficiency of the monobore rodless pump.

[0086] The above embodiments are only one of the implementation manners capable of implementing the technical solution of the present invention. The scope of protection required by the present invention is not limited only by this embodiment, but also includes any changes, substitutions, and other implementation manners that are easily conceivable by any person skilled in the art within the technical scope disclosed by the present invention.

Claims

1. An integral barrel type oil production pump performance testing system, characterized in that, it includes a first bracket (1); a lifting hydraulic cylinder (2) is arranged on the first bracket (1); one end of the lifting hydraulic cylinder (2) is connected to the first bracket (1), and the other end is fixedly connected with a rotating bracket (3); a driving component and a lead screw slide (12) are arranged on the rotating bracket (3); the output end of the driving component is connected to the lead screw of the lead screw slide (12); during testing, the oil discharge end of the pump under test (7) is sleeved on the lead screw, and the oil pumping end is fixed on the rotating bracket (3); the input end of the lifting hydraulic cylinder (2) is connected with a hydraulic control unit (14); during testing, the output end of the hydraulic control unit (14) is connected to the pump under test (7); it further includes a detection unit (15) for collecting test data when the pump under test (7) is working.

2. The integral barrel type oil production pump performance testing system according to claim 1, characterized in that, the first bracket (1) is fixedly connected with a second bracket (4), and the second bracket (4) is vertically arranged with respect to the first bracket (1); a suction cup (6) is vertically arranged on the second bracket (4) for adsorbing the rotating bracket (3).

3. The integral barrel type oil production pump performance testing system according to claim 1, characterized in that, the driving component includes a servo motor (9) and a reducer (10) connected together, both are fixed on the rotating bracket (3), and the output end of the reducer (10) is connected to the lead screw of the lead screw slide (12).

4. The integral barrel type oil production pump performance testing system according to claim 1, characterized in that, the oil discharge end of the pump under test (7) is sleeved on the lead screw through a third fixing bracket (11), the oil pumping end is fixed on the rotating bracket (3) through a first fixing bracket (5), and the pump body is fixed on the rotating bracket (3) through a second fixing bracket (8).

5. The integral barrel type oil production pump performance testing system according to claim 1, characterized in that, the hydraulic control unit (14) includes a Venturi mixer (1001), a first outlet of the Venturi mixer (1001) is communicated with the pump under test (7), and a second outlet is communicated with the lifting hydraulic cylinder (2).

6. The integral barrel type oil production pump performance testing system according to claim 5, characterized in that, a first overflow valve (201) is connected to the oil discharge port of the pump under test (7).

7. The integral barrel type oil production pump performance testing system according to claim 6, characterized in that, the oil discharge port of the pump under test (7) is communicated with the lifting hydraulic cylinder (2).

8. The integral barrel type oil production pump performance testing system according to claim 7, characterized in that, the oil discharge port of the pump under test (7) and the second outlet of the Venturi mixer (10) are communicated with the lifting hydraulic cylinder (2) through the same electromagnetic directional valve (701).

9. The integral barrel type oil production pump performance testing system according to claim 5, characterized in that, The detection unit (15) includes a first pressure sensor (1101) connected to the oil pumping port of the pump under test (7), a second pressure sensor (1102) connected to the oil discharge port of the pump under test (7), a liquid flowmeter (401), a third pressure sensor (1103) connected to the inlet of the Venturi mixer (1001), and a gas flowmeter (501).

10. A performance testing method for a barrel pump, based on the performance testing system for a barrel pump according to any one of claims 1-9, characterized in that, it includes: setting the working curve of the pump under test (7) according to the pumping strokes per minute and the stroke length; fixing and installing the pump under test (7) on the rotary support (3); starting the hydraulic control unit (14), and adjusting the well deviation angle of the rotary support (3) by using the lifting hydraulic cylinder (2) according to the set working curve; starting the driving assembly, and driving the pump under test (7) to reciprocate through the lead screw sliding table (12); collecting the test data when the pump under test (7) is working by using the detection unit (15); storing and calculating the collected test data to obtain the performance test result.

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