CN102094803B - Multifunctional Rod Pump Lifting Simulation Test System - Google Patents
Multifunctional Rod Pump Lifting Simulation Test System Download PDFInfo
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Abstract
The embodiment of the invention provides a multifunctional sucker-rod pump lifting simulation test system, which comprises: the device comprises an electro-hydraulic proportional lifting drive control system, an inclination angle simulation system, a mechanical connection system, a circulating flow system and a data acquisition and control system. The embodiment of the invention can overcome the defects of the existing test system, can test the performance of the sucker-rod pumps of a vertical well, an inclined well, a directional well and a horizontal well, meets the performance test requirements of the sucker-rod pumps in the oil field, and provides scientific detection data for the sucker-rod pumps which are newly put into the well.
Description
Technical field
The present invention relates to mechanical oil recovery testing installation field in the oil development industry, particularly a kind of Multifunctional sucker-rod pump hoisting simulation test system carries out testing property to the rod pumping pump of straight well, inclined shaft, directional well and horizontal well.
Background technique
Rod pumping pump is as the important lifting equipment in oil field, and its performance directly has influence on output and the economic benefit in oil field.For test evaluation improves the every technical performance of oil well pump, research and development provide reliable test data to Novel oil well pump, need a cover Multifunctional sucker-rod pump hoisting simulation test system, and the simulation oil field actual conditions solves the scope oil well pump properties test of full pump footpath.
Daqing Petroleum Institute has developed " deep-well pump-pumping unit testing apparatus " in 1990～1994 years, this device stroke is respectively 0.5m, 0.9m and three grades of 1.2m are adjustable, the manual metering of the parameters such as pressure, flow, and the maximum pressure of system is no more than 0.3MPa.
University of Petroleum and Zhongyuan Petroleum Exploration Bureau are united and have been set up opening oil production technology experimental station, oil well pump can be worked in 50 °～90 ° inclination angle scopes, the maximum stroke 0.6m of test pump, pump discharge maximum pressure 1.0MPa, when doing the oil pumping test, a beam pumping unit is installed on ground.Although this device can be simulated oil well pump performance test under certain inclination angle, the device allomeric function is single, belongs to the simple type testing apparatus.
Oil Mined Technology Research Inst., Shengli Oil Field and University of Petroleum nineteen ninety-five joint research and development and built one the cover " horizontal well oil pump simulation test device ", because the control gear work coordination is poor, therefore this device fails to run well always, also has no the relevant report of its Successful Experiment.
2004, Daqing Petroleum Institute applies horizontal well technology for Daqing oil field and has developed a cover " rod pump lifting simulation ground system test ", oil well pump performance test and the hydraulic characteristic Changing Pattern of oil well pump under certain inclination angle can be studied by this system, but full pump footpath testing property can not be done by this system; Stroke can not be realized stepless adjustable, and maximum stroke only is 3m; Can not do the test such as the multiple flow that contains sand.The test data that gathers is not comprehensive, causes test data and creation data to differ larger, can't carry out comprehensively careful research to oil well pump.
Thus in realizing process of the present invention, the inventor finds that the defective of prior art is: the pump footpath covering scope that existing rod pump dynamic analog test system or device can be tested pump is incomplete, can not satisfy the research and development demand of thickened oil recovery, can't carry out the indoor performance test to high temperature resistant large discharge pump, just can't carry out testing property to it such as the Special Pumps such as used Φ 140 oil well pumps, Φ 120 oil well pumps in the viscous crude SAGD recovery process; Can't carry out testing property to sand control class oil well pump; And the pump intake outlet pressure scope of simulation is little; In addition, can not realize the remote transmission of test data and control etc.
Summary of the invention
The embodiment of the invention provides a kind of Multifunctional sucker-rod pump hoisting simulation test system, and purpose is the rod pump of straight well, inclined shaft, directional well and horizontal well is carried out testing property.
For achieving the above object, the embodiment of the invention provides a kind of Multifunctional sucker-rod pump hoisting simulation test system, and this system comprises: electric-hydraulic proportion promotes driving control system, inclination angle analog system, mechanical linkage system, circulation process system and data collection and control system;
Electric-hydraulic proportion promotes driving control system provides linear reciprocating motion for the rod pump Dynamic performance examination power; The inclination angle analog system realizes that the angle of pump barrel and vertical line changes in 0 ° to 90 ° scope; The down-hole actual conditions of circulation process system simulation rod pump is realized the testing property of rod pump; Mechanical linkage system is fixed on rod pump on the supporting frame, the actual loaded operating mode of simulation rod pump, and the suction of proof test medium, discharge, motive sealing, and in process of the test the stability of elongated polished rod; The data collection and control system gathers, calculates and process data.
The beneficial effect of the embodiment of the invention is, pass through Multifunctional sucker-rod pump hoisting simulation test system, can overcome the defective of existing pilot system, can carry out testing property to the rod pump of straight well, inclined shaft, directional well and horizontal well, satisfy the testing property demand of oil field rod pump, the rod pump of newly going into the well is provided the detection data of science.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, does not consist of limitation of the invention.In the accompanying drawings:
Fig. 1 is the overall structure instance graph of Multifunctional sucker-rod pump hoisting simulation test system in the embodiment of the invention;
Fig. 2 is the structure example figure that electric-hydraulic proportion promotes driving control system in the embodiment of the invention;
Fig. 3 is the structure example figure of inclination angle analog system in the embodiment of the invention;
Fig. 4 is the structure example figure of circulation process system in the embodiment of the invention;
Fig. 5 is the structure example figure of mechanical linkage system in the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing the embodiment of the invention is described in further detail.At this, illustrative examples of the present invention and explanation thereof are used for explanation the present invention, but not as a limitation of the invention.
The embodiment of the invention provides a kind of Multifunctional sucker-rod pump hoisting simulation test system, and described Multifunctional sucker-rod pump hoisting simulation test system comprises: electric-hydraulic proportion promotes driving control system, inclination angle analog system, mechanical linkage system, circulation process system and data collection and control system; Wherein,
Electric-hydraulic proportion promotes driving control system provides linear reciprocating motion for the oil well pump Dynamic performance examination power; The inclination angle analog system realizes that the angle of pump barrel and vertical line changes in 0 ° to 90 ° scope; Mechanical linkage system is fixed on oil well pump on the supporting frame, the actual loaded operating mode of simulation oil well pump, and the suction of proof test medium, discharge, motive sealing, and in process of the test the stability of elongated polished rod; The down-hole actual conditions of circulation process system simulation oil well pump is realized the testing property of oil well pump; The data collection and control system gathers, calculates and process data.
Fig. 1 is the overall structure instance graph of Multifunctional sucker-rod pump hoisting simulation test system in the embodiment of the invention.As shown in Figure 1, section 1 is that electric-hydraulic proportion promotes driving control system; Part 2 is inclination angle analog system and mechanical linkage system; The 3rd part is the flow process circulatory system; The data collection and control system is distributed in 1,2,3 parts.
By above-mentioned Multifunctional sucker-rod pump hoisting simulation test system, can overcome the defective of existing pilot system, can satisfy the testing property demand of oil pump, the oil well pump of newly going into the well is provided the detection data of science; And, can limit parameter detecting to large Parametric Pumping, the old oil well pump that uses or keeped in repair is carried out Performance Detection and evaluation; In addition, also can carry out the performance comparison test to the oil well pump of different structure, different manufacturers, for the Efficiency of Sucker Rod pumps influence factor of working under the research different medium differing tilt angles and the research of the pump valve characteristics of motion provide possibility.
In the present embodiment, particularly, electric-hydraulic proportion promotes the control mode that driving control system adopts double pump feed flow, proportional reversing valve, can obtain thus preferably speed control effect.Electric-hydraulic proportion promotes driving control system and specifically comprises: power source part, valve control part, hydraulic counterweight part, actuator's part and manual drives part.
In the power source part:
Adopt small one and large one double pump central fluid supply, needs according to the stroke jig frequency, select different opening ways (little pump, large pump, little pump+large pump), the pump discharge flow is regulated automatically according to the flow system flow needs, to reduce the overflow of unnecessary flow, be conducive to reduce energy consumption, reduce heating, reach energy-conservation effect.
And; each pump discharge is furnished with relief valve and uses as safety valve; can limit the pump discharge pressure grade; do not bear excess pressure with the protection pump; avoid damaging; the unloading function that can carry by relief valve simultaneously carries out off-load to pressure oil when proportional reversing valve is in meta or in case of emergency.
In valve control part:
Core component is the 3-position 4-way proportional reversing valve, can be according to the direction of the on-off valve regulation oil circuit of electromagnet by this Proportional valve, and again can be according to the flow of the big or small fine adjustment oil circuit of input current or voltage, to reach the effect of actuator being carried out stepless speed regulation.
When oil cylinder is in propradation, the energising of the 1YA electromagnet of Proportional valve work, Proportional valve is operated in left position, and outlet pressure oil enters the rodless cavity of master cylinder, promotes load up, and accumulator fuel feeding to the counterweight chamber of composite cylinder provides additional drives power;
When oil cylinder is in when stopping layer state, the 1YA electromagnet outage of Proportional valve work this moment, Proportional valve is operated in meta, and main pump motor is shut down or by the relief valve off-load simultaneously;
When oil cylinder is in downstream state, the energising of the 2YA electromagnet of Proportional valve work, Proportional valve is operated in right position, and outlet pressure oil enters the rod chamber of master cylinder, promotes load descending, drives simultaneously composite cylinder counterweight chamber interior oil-filled toward accumulator.
In the hydraulic counterweight part:
Utilize accumulator as the hydraulic counterweight of carrier, have than traditional mechanical counterweight that volume is little, flexible, safety coefficient is high, can reduce the outstanding advantages such as installed power, according to calculating, adopt hydraulic counterweight, installed power can reduce near half, thereby can greatly reduce cost, reduce unnecessary energy consumption.
When oil cylinder was in upstroke, accumulator produced thrust to the oil extraction of composite cylinder counterweight chamber, and when oil cylinder was in down stroke, the fluid in composite cylinder counterweight chamber recharged toward accumulator, so periodic duty.
Simultaneously, for the problem of fluid internal leakage, accumulator also is furnished with a cover recharging oil device, can carry out repairing to it when the accumulator working pressure descends, to keep normal working pressure class.
In actuator's part:
Be comprised of two composite cylinders, composite cylinder is the particular design cylinder, and every composite cylinder is made of three cavitys.When fluid entered the composite cylinder cavity of resorption, piston rod was up, and when fluid entered on the composite cylinder, piston rod was descending; The up thrust of leaning on the discharge fluid of accumulator in the counterweight chamber of composite cylinder, descending drive by main cylinder piston-rod.Oil cylinder also is equipped with external displacement transducer, position limit switch etc., can transmit the related work status information to control system.
In the manual drives part:
Manual drives part only causes driving oil circuit at outage or other reasons can't drive the composite cylinder action, and uses in the situation that needs the composite cylinder position to finely tune.Under the state that Weighting system connects, manual pump can only drive the composite cylinder retraction.
The power of hand oil-way is provided by manual pump, and the discharge capacity that manual pump whenever shakes once is 90ml, and the corresponding movement of composite cylinder is 10mm approximately.This part is the Redundancy Design of system.
At control section:
Mainly possess control and monitor two large functions.According to the actual conditions needs, by regulating control metering pump and Proportional valve, can realize the automatic stepless control of stroke and jig frequency; Utilize various kinds of sensors can show in real time the working staties such as pressure, flow, temperature, play the effect of Real-Time Monitoring; Overpressure, stroke is excessive, temperature rise exceeds standard or other in emergency circumstances, can automatically send alarm signal, in case of necessity can also automatic forced shut down, promote the safety of drive system to guarantee electric-hydraulic proportion.
Fig. 2 is the structure example figure that electric-hydraulic proportion promotes driving control system in the embodiment of the invention.As shown in Figure 2, this electric-hydraulic proportion lifting driving control system comprises: fuel tank 1, oil absorption filter 2, plunger pump 3, motor 4, one-way valve 5, pilot operated compound relief valve 6, in-line filter 7, pressure gauge 8, pressure transducer 9, proportional reversing valve 10, hand-operated direction valve 11, hand pump 12, forced air cooler 13, direct-acting overflow valve 14, hand stop valve 15, bladder type hydropneumatic accumulator 16, oil hydraulic cylinder 17, high-pressure ball valve 18, pressure relay 19 and safety valve 20.
In the present embodiment, particularly, the inclination angle analog system mainly comprises: stand, vertical guide, electric wire hoist, bracket of electric hoist, vertical coaster, horizontal guide rail, fleeting tackle, supporting frame, inclination angle locking framework, slope apparatus and hydraulic station.
Wherein, the supporting frame two ends use respectively hinge support on vertical coaster and fleeting tackle.When electric wire hoist drives when moving up and down in the vertical guide of vertical coaster in stand, fleeting tackle just moves horizontally at horizontal guide rail, and the inclination angle of supporting frame changes thereupon.Oil well pump is rigidly fixed on the supporting frame, and parallel with it.Therefore, the pump barrel inclination angle is identical with the inclination angle of supporting frame, relies on the inclination angle analog system can realize that the angle of pump barrel and vertical line changes in 0 °～90 ° scopes.
The working principle of inclination angle analog system is: when supporting frame is in vertical position, the angle of pump barrel and vertical line is 0 °, unclamp the inclination angle locking framework on the fleeting tackle this moment, slowly transfer electric hoist, fleeting tackle is descending along the slope, whole supporting frame falls, arrive certain inclination angle after, supporting frame and on equipment will rely on action of gravitation and transfer voluntarily.After reaching desired inclination angle, with the inclination angle locking framework fleeting tackle is locked, thereby realized locking to supporting frame, then can carry out the experiment work of oil well pump.
When supporting frame hoisted to the vertical position from horizontal position, process was with upper opposite, the electric wire hoist that hoists, and the inclination angle of supporting frame increases gradually, and when inclination angle during near the vertical position, fleeting tackle is climbed up the slope, is the ready for operation of transferring of next time.
Also be provided with inclination angle locking framework and slope apparatus in the analog system of inclination angle.The effect of inclination angle locking framework is when carrying out the oil well pump test under a certain inclination angle, to realize the reliable locking to supporting frame; The effect of slope apparatus is when guaranteeing to transfer from the vertical position, supporting frame and on equipment can rely on action of gravitation to fall voluntarily, simplify removing operation.Hydraulic station provides power, by the switching controls of hydraulic circuit, can realize the function such as locking, maintenance, release of inclination angle locking system.
Fig. 3 is the structure example figure of inclination angle analog system in the embodiment of the invention.As shown in Figure 3, this inclination angle analog system comprises: bracket of electric hoist 301, electric wire hoist 302, stand 303, vertical guide 304, vertical coaster 305, supporting frame 306, test pump 307, horizontal guide rail 308, slope 309, inclination angle locking framework 310, fleeting tackle 311 and hydraulic station 312.
In the present embodiment, particularly, the circulation process system comprises: liquid container, measuring tank, manually operated valve, mortor operated valve, feed flow screw pump, inlet flow rate meter, rate of discharge meter, entrance electric control valve, outlet electric control valve, and entrance and exit Accumulator arrangements, static mixer, pipeline mounted pump and high-pressure air source etc.
Fig. 4 is the structure example figure of circulation process system in the embodiment of the invention.As shown in Figure 4, further, manually operated valve is 7, i.e. SF I～SF VII; Mortor operated valve is 7, i.e. DF I～DF VII; The feed flow screw pump is two; Inlet flow rate is counted two; Rate of discharge is counted two; The outlet electric control valve is two.
Oil well pump inlet pressure regulating method is: start selected screw pump and pour into test(ing) medium in oil well pump to be tested, the test(ing) medium discharge capacity of screw pump perfusion must be greater than the oil pumping pump delivery, realizes adjusting to oil well pump inlet pressure (being pump intake pressure) by the aperture of regulating the entrance electric control valve.
Simultaneously, in order to stablize the flow of intake system, also for the adjusting of pump intake pressure with stable, be provided with the entrance Accumulator arrangements at the exhaust end of solution feed pump, can replenish not enough liquid measure or store unnecessary liquid measure according to the size of oil well pump required flow in process of the test.
Further, in order to realize large changes in flow rate scope (49～500m
3/ pressure range large in d) (regulate, and is provided with two cover motorized adjustment control valve units, and keep the stable of rate of discharge with the outlet accumulator, to improve the precision and stability of outlet pressure adjusting by 0～15MPa) pressure.
Can realize that routine is not simulated the test of entrance pump intake pressure, the test of conventional simulation entrance pump intake pressure, aerating is tested and add sand test by this flow process circulatory system.Wherein,
The conventional operating method of not simulating the test of entrance pump intake pressure is: open manually operated valve SF I, close manually operated valve SF II, do not start the feed flow screw pump.At this moment, oil well pump is inhalation test medium from liquid container directly, does not simulate the entrance pump intake pressure.
The operating method of conventional simulation entrance pump intake pressure test is: close manually operated valve SF I, open manually operated valve SF II, according to the displacement size of detected oil well pump, select starting 1# feed flow screw pump (opening manually operated valve SF III), perhaps start 2# feed flow screw pump (opening manually operated valve SF IV).Displacement size according to detected oil well pump, select 1# inlet flow rate meter (open mortor operated valve DF I, close mortor operated valve DF II) or 2# inlet flow rate meter (open mortor operated valve DF II, close mortor operated valve DF I), open simultaneously manually operated valve SF V, close manually operated valve SF VI and manually operated valve SF VII.The flow that sucks the test(ing) medium of oil well pump is measured by selected entrance electromagnetic flowmeter.
The operating method of aerating test is: close manually operated valve SF V, open manually operated valve SF IV, manually operated valve SF VII, according to the size of the pump intake pressure of simulating, regulate the pressure of source of the gas by pressure regulator valve, realize the mixing of gas, liquid by static mixer.Other processs of the test are identical with routine test.
The operating method that adds sand test is identical with the operating method of routine test.Just before test, in supply tank, add additive and a certain amount of test sand of a certain amount of increase dielectric viscosity, and stir with stirrer.
In the present embodiment, the effect of mechanical linkage system is, oil well pump is fixed on the supporting frame, the actual loaded operating mode of simulation oil well pump, and the suction of proof test medium, discharge, motive sealing, and in process of the test the stability of elongated polished rod.
Particularly, this system mechanics connects and comprises that two large divisions, first portion are suction, discharge and the motive sealing parts of the fixing and test(ing) medium of oil well pump, and another part is that power loads and polished rod righting part.Wherein,
Further, suction, discharge and the motive sealing part of the fixing and test(ing) medium of this oil well pump specifically comprise: fixing device, righting device, transition pipe nipple, articulated pump barrel connector, Highpressure Tee, motive sealing etc.
The cylindrical shell of oil well pump in the suction side by transition pipe nipple be connected the pump barrel connector and be connected with fixing device, born the thrust load that produces in the process of the test by fixing device, test(ing) medium imports in the oil well pump by fixing device simultaneously; The cylindrical shell of oil well pump is connected with dynamic seal apparatus by transition pipe nipple, Highpressure Tee at exhaust end, and test(ing) medium is derived from Highpressure Tee, the motive sealing in the dynamic seal apparatus proof test process.
Further, this power loads and polished rod righting part, specifically comprises: power blocks, loading crossbeam, loading bolt, tension-compression sensor, articulated polished rod connector, polished rod, polished rod positioning device, and righting coaster and righting block thereof etc.
Load crossbeam and drive the power blocks motion, by loading bolt, tension-compression sensor, articulated polished rod connector, drive polished rod reciprocating.Wherein the righting coaster designs in order to prevent polished rod unstability elongated in down stroke, the servo-actuated righting coaster that is formed by the composite rope wheel mechanism, all the time be in the neutral position of the polished rod that stretches out, namely the move distance of righting coaster is half of power blocks forever, thereby guarantees that polished rod can unstability in movement process.
Fig. 5 is the structure example figure of mechanical linkage system in the embodiment of the invention.As shown in Figure 5, this mechanical linkage system comprises: power blocks 501, loading crossbeam 502, tension-compression sensor 503, polished rod connector 504, motive sealing 505, transition pipe nipple 506, righting device 507, transition pipe nipple 508, pump barrel connector 509, loading bolt 510, polished rod positioning device 511, righting coaster 512, righting block 513, polished rod 514, Highpressure Tee 515, oil well pump 516 and fixing device 517.
In the present embodiment, particularly, the data collection and control system major parameter that need to gather comprises: polished rod load, suspension point displacement, pump discharge pressure, pump inlet pressure, actual flow, test(ing) medium temperature, add throughput, add the data acquisition such as atmospheric pressure, process and control.
Further, polished rod load sensor and suspension point displacement transducer are with polished rod load, suspension point displacement signal, convert 4～20mA electrical signal to, convert digital signal to through ADAM-4117 data acquisition module 1, enter the control computer by the RS485 address card, finished again the computer screen demonstration and data processing of survey data by testing software.
The parameters such as pump discharge flow, pump intake flow, gas flow, gas pressure are detected by corresponding sensor, convert digital signal to through ADAM-4117 data acquisition module 2, enter the control computer by the RS485 address card, finished again the computer screen demonstration and data processing of survey data by testing software.
The parameter such as pump discharge pressure, pump inlet pressure is detected by corresponding pressure transducer, realize that by XMT-3 intelligent digital control instrument the data of operating console panel show respectively, and finish corresponding control function, while send Out let that the data that detect are sent into the RS485 address card by the RS485 change of instrument itself, enters the control computer is finished survey data again by testing software computer screen demonstration and data processing.
And, the delivery side of pump flow also can measure by measuring tank, after liquid level sensor carries out conversion with liquid level signal, send into XMG-2G type intelligent digital controller, after conversion, send Out let to send into the RS485 address card by the RS485 change of instrument itself liquid level numerical value, enter the control computer, finished again the conversion of data on flows by testing software according to the structural parameter of measuring tank and metering time etc., then be presented on the computer screen and finish corresponding data and process.
In addition, the temperature of test(ing) medium is detected by temperature transducer, be transferred to XM908-3 type intelligent digital controller, finish the heat control that adds of medium, becoming through the RS485 of instrument itself simultaneously send Out let to send into the RS485 address card, entering the control computer, carrying out corresponding data by testing software again and process.As calculated machine data collection, calculating and processing obtain the various performance parameters of oil well pump and the indicator diagram of oil well pump at last.
In the present embodiment, at first, pump to be detected can be fixed on the supporting frame, utilize electric wire hoist to adjust the angle of inclination angle analog system and lock; Secondly, connect the connecting line of pump to be detected and flow system, and set the pipeline flow process of circulation process system according to experiment process, start electric-hydraulic proportion driving control system driving test pump and move reciprocatingly according to the stroke jig frequency of setting; Simultaneously, by parameters such as data collection and control system adjusting test pump inlet pressure, outlet pressures, carry out collection, storage, output report and the indicator diagram of critical data behind the parameter stability to be regulated.
In the present embodiment, the oil well pump outlet pressure reaches as high as 15MPa, and PIP is controlled between normal pressure～3.0MPa; Oil pump plunger piston stroke 1～5m is adjustable continuously, and jig frequency is stepless adjustable between 1～6; The pump barrel inclination angle is adjustable at 0 °～90 ° scope internal classifications, and 10 ° is a grade; The test(ing) medium temperature is arbitrarily control in ℃ scope of room temperature～90.
And, can gather simultaneously the parameters such as oil well pump suction port flow, discharge flow rate, suction pressure, outlet pressure, exhaust port fluid temperature, stroke, polished rod load, gas pressure and gas flow, image data is more complete; According to image data, utilize the software of working out to calculate suspension point jig frequency, pump displacement coefficient, suspension point speed and acceleration, and draw oil well pump flow curve and polished rod diagram.
And, adopt hydraulic system to drive oil well pump work, power is large, can satisfy the test requirements document of the large pump such as Φ 140 oil well pumps, Φ 120 oil well pumps; Adopt two-speed electric block and slope apparatus, guaranteed the steady, smooth and easy of tilt adjustment process, and simple to operate, easy row; Adopt the servo-actuated righting device of half way, can guarantee that centralizer body is in 1/2nd places of stretching out the pump barrel polished rod all the time, effectively prevents the polished rod unstability.
In addition, develop the oil-well pump polish rod high pressure seal, adopted two-stage sealing, can satisfy the high pressure sealing requirement of 15MPa; At oil pumping pump intake and exhaust port accumulator is installed, Pump Suction Nozzle and outlet pressure can be kept relative stability; Discharge flow rate can be used electromagnetic flowmeter metering and two kinds of metering methods of measuring tank autoweighing, and the switching of flow process has realized telecontrol, convenient operation.
And a whole set of pilot system is reliable and stable, during equipment debugging, has carried out altogether up to a hundred tests.From process of the test, the Mechanical Reliability of device is high, and data recording is stable, can satisfy well the needs that the oil well pump science detects.
In the present embodiment, by above-mentioned Multifunctional sucker-rod pump hoisting simulation test system, oil well pump that can test evaluation from Φ 38 pumps to Φ 140 pumps, has covered the scope of the employed oil well pump of present Oil Field; Simultaneously, for Utilization ratio and the cost performance that improves system, the pump of large parameter is limit parameter detecting, parameter and the technical order thereof specifically controlling and detect are as follows:
1. pump barrel inclination angle scope, 0～90 °, every 10 ° of grades, classification is adjustable;
2. maximum stroke 5m is stepless adjustable;
3. the highest jig frequency 6 punchings/minute, adjustable continuously;
4. test(ing) medium temperature, room temperature～90 ℃;
5. pump sucks pump intake pressure, 0～3MPa;
6. pump discharge pressure, 0～15MPa;
7. maximum polished rod load can reach 120kN;
8. instantaneous peak rate of flow 400m
3/ d;
9. sand content is not more than the 3%(volume ratio);
10. add tolerance, be not more than 1m
3/ min(is converted to the numerical value that standard atmosphere is depressed).
By above-described embodiment as can be known, by above-mentioned Multifunctional sucker-rod pump hoisting simulation test system, can overcome the defective of existing pilot system, can carry out testing property for the rod pumping pump of straight well, inclined shaft, directional well and horizontal well, satisfy the testing property demand of oil pump, the oil well pump of newly going into the well is provided the detection data of science;
And, can limit parameter detecting to large Parametric Pumping, the old oil well pump that uses or keeped in repair is carried out Performance Detection and evaluation; In addition, also can carry out the performance comparison test to the oil well pump of different structure, different manufacturers, for the Efficiency of Sucker Rod pumps influence factor of working under the research different medium differing tilt angles and the research of the pump valve characteristics of motion provide possibility.
Those of ordinary skills can also further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, composition and the step of each example described in general manner according to function in the above description.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technological scheme.The professional and technical personnel can specifically should be used for realizing described function with distinct methods to each, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random access memory (RAM), internal memory, ROM (read-only memory) (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
Above-described embodiment; purpose of the present invention, technological scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; the protection domain that is not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (33)
1. a Multifunctional sucker-rod pump hoisting simulation test system is characterized in that, described system comprises: electric-hydraulic proportion promotes driving control system, inclination angle analog system, mechanical linkage system, circulation process system and data collection and control system;
Described electric-hydraulic proportion promotes driving control system provides linear reciprocating motion for the rod pump Dynamic performance examination power; Described inclination angle analog system realizes that the angle of pump barrel and vertical line changes in 0 ° to 90 ° scope; The down-hole actual conditions of described circulation process system simulation rod pump is realized the testing property of rod pump; Described mechanical linkage system is fixed on rod pump on the supporting frame, the actual loaded operating mode of simulation rod pump, and the suction of proof test medium, discharge, motive sealing, and in process of the test the stability of elongated polished rod; Described data collection and control system gathers, calculates and process data.
2. Multifunctional sucker-rod pump hoisting simulation test system according to claim 1 is characterized in that, described electric-hydraulic proportion promotes the control mode that driving control system adopts double pump feed flow, proportional reversing valve.
3. Multifunctional sucker-rod pump hoisting simulation test system according to claim 2, it is characterized in that, described electric-hydraulic proportion promotes driving control system and specifically comprises: power source part, valve control part, hydraulic counterweight part, actuator's part, manual drives part and control section;
Described power source partly adopts small one and large one double pump central fluid supply, according to the needs of stroke jig frequency, selects different opening ways; The core component of described valve control part is the 3-position 4-way proportional reversing valve; Described hydraulic counterweight partly utilizes accumulator as the hydraulic counterweight of carrier; Described actuator part is comprised of two composite cylinders, and every composite cylinder is made of three cavitys; Described manual drives part is used when the power source part can't drive the composite cylinder action and need the composite cylinder position to finely tune.
4. Multifunctional sucker-rod pump hoisting simulation test system according to claim 3 is characterized in that, each pump discharge of described power source part is furnished with relief valve and uses as safety valve.
5. Multifunctional sucker-rod pump hoisting simulation test system according to claim 3 is characterized in that, in described valve control part:
When oil cylinder is in propradation, the energising of the 1YA electromagnet of proportional reversing valve work, proportional reversing valve is operated in left position, and outlet pressure oil enters the rodless cavity of master cylinder, promotes load up, and accumulator fuel feeding to the counterweight chamber of composite cylinder provides additional drives power;
When oil cylinder is in when stopping layer state, the 1YA electromagnet outage of proportional reversing valve work, proportional reversing valve is operated in meta, and main pump motor is shut down or by the relief valve off-load simultaneously;
When oil cylinder is in downstream state, the energising of the 2YA electromagnet of proportional reversing valve work, proportional reversing valve is operated in right position, and outlet pressure oil enters the rod chamber of master cylinder, promotes load descending, drives simultaneously composite cylinder counterweight chamber interior oil-filled toward accumulator.
6. Multifunctional sucker-rod pump hoisting simulation test system according to claim 3 is characterized in that, in described hydraulic counterweight part:
When oil cylinder was in propradation, accumulator produced thrust to the oil extraction of composite cylinder counterweight chamber; When oil cylinder was in downstream state, the fluid in composite cylinder counterweight chamber recharged toward accumulator.
7. Multifunctional sucker-rod pump hoisting simulation test system according to claim 6, it is characterized in that, the accumulator of described hydraulic counterweight part also is furnished with a cover recharging oil device, when the accumulator working pressure descends it is carried out repairing, to keep normal working pressure class.
8. Multifunctional sucker-rod pump hoisting simulation test system according to claim 3 is characterized in that, in described actuator part:
When fluid entered the composite cylinder cavity of resorption, piston rod was up, and when fluid entered the composite cylinder epicoele, piston rod was descending; The up thrust of leaning on the discharge fluid of accumulator in the counterweight chamber of composite cylinder, descending drive by main cylinder piston-rod.
9. Multifunctional sucker-rod pump hoisting simulation test system according to claim 3 is characterized in that, in described manual drives part:
Under the state that hydraulic counterweight partly connects, manual pump drives the composite cylinder retraction; The power of hand oil-way is provided by manual pump.
10. Multifunctional sucker-rod pump hoisting simulation test system according to claim 9 is characterized in that, the discharge capacity that manual pump whenever shakes once is 90ml, the corresponding mobile 10mm of composite cylinder.
11. Multifunctional sucker-rod pump hoisting simulation test system according to claim 3 is characterized in that, at described control section:
Described control section by regulating metering pump and the proportional reversing valve of control power source part, is realized the automatic stepless control of stroke and jig frequency according to the actual conditions needs; And utilize various kinds of sensors to show in real time the working state that comprises pressure, flow, temperature; And
Excessive in overpressure, stroke, when temperature rise exceeds standard, automatically send alarm signal or automatic forced and shut down, promote the safety of driving control system to guarantee electric-hydraulic proportion.
12. Multifunctional sucker-rod pump hoisting simulation test system according to claim 1, it is characterized in that, described inclination angle analog system comprises: stand, vertical guide, electric wire hoist, bracket of electric hoist, vertical coaster, horizontal guide rail, fleeting tackle, supporting frame, inclination angle locking framework, slope apparatus and hydraulic station;
The support frame as described above two ends use respectively hinge support on vertical coaster and fleeting tackle; Rod pump is rigidly fixed on the support frame as described above, and parallel with support frame as described above.
13. Multifunctional sucker-rod pump hoisting simulation test system according to claim 12, it is characterized in that, when described electric wire hoist drives when moving up and down in the vertical guide of vertical coaster in stand, fleeting tackle moves horizontally at horizontal guide rail, and the inclination angle of supporting frame changes thereupon.
14. Multifunctional sucker-rod pump hoisting simulation test system according to claim 12, it is characterized in that, when support frame as described above is in vertical position, the angle of pump barrel and vertical line is 0 °, unclamp the inclination angle locking framework on the fleeting tackle this moment, slowly transfer electric wire hoist, fleeting tackle is descending along slope apparatus, whole supporting frame falls, after arriving certain inclination angle, supporting frame and on equipment rely on action of gravitation and transfer voluntarily, reach desired inclination angle after, with the inclination angle locking framework fleeting tackle is locked;
When supporting frame hoists to the vertical position from horizontal position, the electric wire hoist that hoists, the inclination angle of supporting frame increases gradually, and when inclination angle during near the vertical position, fleeting tackle is climbed up slope apparatus.
15. Multifunctional sucker-rod pump hoisting simulation test system according to claim 12 is characterized in that, when described inclination angle locking framework carries out the rod pump test under an inclination angle, realizes the reliable locking to supporting frame;
When described slope apparatus guarantees to transfer from the vertical position, supporting frame and on equipment rely on action of gravitation to fall voluntarily;
Described hydraulic station provides power, by the switching controls of hydraulic circuit, realizes locking, maintenance, the release of inclination angle locking system.
16. Multifunctional sucker-rod pump hoisting simulation test system according to claim 1, it is characterized in that, described circulation process system comprises: liquid container, measuring tank, manually operated valve, mortor operated valve, feed flow screw pump, inlet flow rate meter, rate of discharge meter, entrance electric control valve, outlet electric control valve, and entrance and exit Accumulator arrangements, static mixer, pipeline mounted pump and high-pressure air source.
17. Multifunctional sucker-rod pump hoisting simulation test system according to claim 16, it is characterized in that, described manually operated valve is 7, be that SF I～SF VII, described mortor operated valve are 7, namely DF I～DF VII, described feed flow screw pump are that two, described inlet flow rate count two, described rate of discharge to count two, described outlet electric control valve be two.
18. Multifunctional sucker-rod pump hoisting simulation test system according to claim 17, it is characterized in that, start selected feed flow screw pump and pour into test(ing) medium in rod pump to be tested, the test(ing) medium discharge capacity of feed flow screw pump perfusion is greater than the discharge capacity of rod pump; And, realize adjusting to the rod pump inlet pressure by the aperture of regulating the entrance electric control valve.
19. Multifunctional sucker-rod pump hoisting simulation test system according to claim 17, it is characterized in that, described entrance Accumulator arrangements is arranged on the exhaust end of feed flow screw pump, replenishes not enough liquid measure or stores unnecessary liquid measure according to the size of rod pump required flow in process of the test.
20. Multifunctional sucker-rod pump hoisting simulation test system according to claim 17 is characterized in that, the changes in flow rate scope that described electric control valve is realized is 49～500m
3/ d, pressure range are 0～15MPa;
Described outlet Accumulator arrangements is kept the stable of rate of discharge, the precision and stability of regulating to improve outlet pressure.
21. Multifunctional sucker-rod pump hoisting simulation test system according to claim 17 is characterized in that, in described circulation process system:
Open manually operated valve SF I, close manually operated valve SF II, when not starting the feed flow screw pump, rod pump is inhalation test medium from liquid container directly, does not simulate the entrance pump intake pressure, does not simulate the test of entrance pump intake pressure to finish routine.
22. Multifunctional sucker-rod pump hoisting simulation test system according to claim 17 is characterized in that, in described circulation process system:
Close manually operated valve SF I, open manually operated valve SF II, according to the displacement size of detected rod pump, open manually operated valve SF III or manually operated valve SF IV;
According to the displacement size of detected rod pump, open mortor operated valve DF I, close mortor operated valve DF II, perhaps open mortor operated valve DF II, close mortor operated valve DF I, open simultaneously manually operated valve SF V, close manually operated valve SF VI and manually operated valve SF VII;
The flow that sucks the test(ing) medium of rod pump is measured by selected inlet flow rate meter, to finish the test of conventional simulation entrance pump intake pressure.
23. Multifunctional sucker-rod pump hoisting simulation test system according to claim 17 is characterized in that, in described circulation process system:
Close manually operated valve SF V, open manually operated valve SF IV, manually operated valve SF VII, according to the size of the pump intake pressure of simulating, regulate the pressure of source of the gas by pressure regulator valve, realize the mixing of gas, liquid by static mixer, to finish the aerating test.
24. Multifunctional sucker-rod pump hoisting simulation test system according to claim 17 is characterized in that, in described circulation process system:
Before adding sand test, in liquid container, add additive and a certain amount of test sand of a certain amount of increase dielectric viscosity, and stir with stirrer.
25. Multifunctional sucker-rod pump hoisting simulation test system according to claim 1 is characterized in that, described mechanical linkage system comprises: suction, discharge and the motive sealing part of the fixing and test(ing) medium of rod pump; And power loads and polished rod righting part.
26. Multifunctional sucker-rod pump hoisting simulation test system according to claim 25, it is characterized in that, suction, discharge and the motive sealing part of the fixing and test(ing) medium of described rod pump specifically comprise: fixing device, righting device, transition pipe nipple, articulated pump barrel connector, Highpressure Tee, dynamic seal apparatus; Wherein,
The cylindrical shell of rod pump in the suction side by transition pipe nipple be connected the pump barrel connector and be connected with described fixing device, born the thrust load that produces in the process of the test by described fixing device, test(ing) medium imports in the rod pump by fixing device simultaneously;
Pump barrel is connected with described dynamic seal apparatus by transition pipe nipple, Highpressure Tee at exhaust end, and test(ing) medium is derived from Highpressure Tee, the motive sealing in the described dynamic seal apparatus proof test process.
27. Multifunctional sucker-rod pump hoisting simulation test system according to claim 25, it is characterized in that, described power loads and polished rod righting part, specifically comprise: power blocks, loading crossbeam, loading bolt, tension-compression sensor, articulated polished rod connector, polished rod, polished rod positioning device, and righting coaster and righting block thereof; Wherein,
Described loading crossbeam drives the power blocks motion, by loading bolt, tension-compression sensor, that articulated polished rod connector drives polished rod is reciprocating;
Described righting coaster is used for preventing in the elongated polished rod unstability of down stroke, by the servo-actuated righting coaster that the composite rope wheel mechanism forms, is in all the time the neutral position of the polished rod that stretches out, thereby guarantees that polished rod can unstability in movement process.
28. Multifunctional sucker-rod pump hoisting simulation test system according to claim 1, it is characterized in that, described data collection and control system specifically is used for: polished rod load, suspension point displacement, pump discharge pressure, pump inlet pressure, pump discharge flow, pump intake flow, gas flow, gas pressure, test(ing) medium temperature are gathered, process and control.
29. Multifunctional sucker-rod pump hoisting simulation test system according to claim 28 is characterized in that, described data collection and control system comprises: polished rod load sensor and suspension point displacement transducer;
Described polished rod load sensor and suspension point displacement transducer convert polished rod load, suspension point displacement signal to 4～20mA electrical signal, convert digital signal to through the ADAM-4117 data acquisition module, enter the control computer by the RS485 address card, finished again the computer screen demonstration and data processing of survey data by testing software.
30. Multifunctional sucker-rod pump hoisting simulation test system according to claim 28, it is characterized in that, pump discharge flow, pump intake flow, gas flow, gas pressure are detected by corresponding sensor, convert digital signal to through the ADAM-4117 data acquisition module, enter the control computer by the RS485 address card, finished again the computer screen demonstration and data processing of survey data by testing software.
31. Multifunctional sucker-rod pump hoisting simulation test system according to claim 28, it is characterized in that, pump discharge pressure, pump inlet pressure are detected by corresponding pressure transducer, realize that by XMT-3 intelligent digital control instrument the data of operating console panel show respectively, and finish corresponding control function, send Out let that the data that detect are sent into the RS485 address card by the RS485 change of instrument itself simultaneously, enter the control computer, finished again the computer screen demonstration and data processing of survey data by testing software.
32. Multifunctional sucker-rod pump hoisting simulation test system according to claim 28, it is characterized in that, the pump discharge flow measures by measuring tank, after liquid level sensor carries out conversion with liquid level signal, send into XMG-2G type intelligent digital controller, after conversion, send Out let to send into the RS485 address card by the RS485 change of instrument itself liquid level numerical value, enter the control computer, then the conversion of finishing data on flows by testing software according to the structural parameter of measuring tank and metering time again is presented on the computer screen and finishes corresponding data and process.
33. Multifunctional sucker-rod pump hoisting simulation test system according to claim 28, it is characterized in that, the test(ing) medium temperature is detected by temperature transducer, be transferred to XM908-3 type intelligent digital controller, finish the heat control that adds of medium, become through the RS485 of instrument itself simultaneously and send Out let to send into the RS485 address card, enter the control computer and carry out corresponding data processing by testing software again.
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| CN105673471B (en) * | 2014-11-20 | 2018-03-13 | 中国石油化工股份有限公司 | A kind of vertical analogue experiment method of metal screw pump |
| CN104568404A (en) * | 2014-12-24 | 2015-04-29 | 中国石油天然气股份有限公司 | Inclination angle simulation system for oil well pump test |
| CN105298821A (en) * | 2015-09-16 | 2016-02-03 | 大连液压件有限公司 | Air-source pressure fast conversion device |
| CN107246262A (en) * | 2017-04-11 | 2017-10-13 | 西南石油大学 | A kind of leakage amount detecting device and method for simulating oil well pump working environment |
| CN109138983B (en) * | 2018-07-20 | 2022-05-10 | 中国石油天然气股份有限公司 | Pumping displacement calculation method and device and computer storage medium |
| CN109681198B (en) * | 2019-01-25 | 2021-11-19 | 大连理工大学 | Multi-mode exploitation simulation device and method for different types of natural gas hydrate reservoirs |
| CN110487536B (en) * | 2019-09-20 | 2020-12-11 | 中国石油化工股份有限公司 | Pump valve structure optimization test analysis device based on working condition characteristics |
| CN112211810B (en) * | 2020-09-17 | 2022-04-26 | 中国石油天然气股份有限公司 | Direct drive device of motor without reduction box and operation control method |
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