CN103048243A - Simulative friction measuring device - Google Patents
Simulative friction measuring device Download PDFInfo
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- CN103048243A CN103048243A CN2011103105355A CN201110310535A CN103048243A CN 103048243 A CN103048243 A CN 103048243A CN 2011103105355 A CN2011103105355 A CN 2011103105355A CN 201110310535 A CN201110310535 A CN 201110310535A CN 103048243 A CN103048243 A CN 103048243A
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- frictional resistance
- testing tube
- simulation
- resistance determinator
- bobbin carriage
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- 238000012360 testing method Methods 0.000 claims abstract description 70
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 24
- 238000002360 preparation method Methods 0.000 claims abstract description 22
- 230000000694 effects Effects 0.000 claims abstract description 10
- 238000004088 simulation Methods 0.000 claims description 35
- 125000004122 cyclic group Chemical group 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 3
- 238000009530 blood pressure measurement Methods 0.000 abstract 3
- 238000013016 damping Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000007864 aqueous solution Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention discloses a simulative friction measuring device which is used for measuring an anti-drag effect of a drag reducer. The simulative friction measuring device comprises a preparation kettle (1), a pump (2), a test tube (5) and pressure measurement elements, wherein the preparation kettle (1) and the test tube (5) are communicated through a pipeline (13) to form a liquid circulation loop; the pump (2) is arranged on the pipeline (13); the pressure measurement elements are arranged at the both ends of the test tube (5); and the simulative friction measuring device further comprises a temperature control unit and an automatic control unit. With the adoption of the simulative friction measuring device provided by the invention, the temperature of liquid in the liquid circulation loop is kept stable through the temperature control unit; flow of the liquid in the liquid circulation loop is set through the automatic control unit; a differential pressure of the both ends of the test tube (5) is measured by the pressure measurement elements; and the automatic control unit collects data for processing. Therefore, the damping effect of the drag reducer can be accurately and rapidly measured, and the simulative friction measuring device can be used for scientifically evaluating and laying the foundation for selecting the drag reducer.
Description
Technical field
The present invention relates to the mensuration of drag, particularly, relate to a kind of simulation frictional resistance determinator for measuring drag.
Background technology
Drag reducer is the important auxiliary agent of shale gas exploitation, according to the standard of SY/T 6376-1998 " fracturing liquid general technical specifications ", but the drag-reduction effect of on-site measurement drag reducer.But this method needs the larger test space and suitable field working conditions, and needs a large amount of fluids to be measured, is not suitable for the mensuration research of laboratory drag, exactly resistance-reducing yield in the measuring cell.
Summary of the invention
The purpose of this invention is to provide a kind of indoor simulation frictional resistance determinator that is applicable to, for scientifically estimating and selecting drag reducer that foundation is provided.
To achieve these goals, the invention provides a kind of simulation frictional resistance determinator, be used for measuring the drag-reduction effect of drag reducer, comprise preparation still, pump, testing tube and load cell, described preparation still and described testing tube by pipeline communication to consist of liquid circulation loop, described pump is arranged on the described pipeline, and described load cell is arranged on the two ends of described testing tube.
Preferably, described load cell is the differential pressure transmitter that is connected in described testing tube two ends.
Preferably, described load cell is two pressure units that are separately positioned on described testing tube two ends.
Preferably, the caliber of described testing tube is that 1/8 inch～1 inch, length are 1 meter～3 meters.
Preferably, the wall of described preparation still has chuck.
Preferably, described simulation frictional resistance determinator also comprises test bobbin carriage and Heating Cyclic device, and the chuck inside of described preparation still, described test bobbin carriage and the Heating Cyclic device of being connected connect to form the temperature control closed circuit by pipeline.
Preferably, the outer setting of described test bobbin carriage has heat-insulation layer, and is provided with thermometer, and described testing tube is placed in the described test bobbin carriage and two ends stretch out in described test bobbin carriage.
Preferably, the described testing tube in described test bobbin carriage adopts support to fix.
Preferably, described simulation frictional resistance determinator also comprises Automatic Control Unit, this Automatic Control Unit comprises controller and the frequency converter, flowmeter and the pressure unit that are electrically connected with this controller respectively, wherein said frequency converter is the frequency converter that described pump carries, described flowmeter and pressure unit are separately positioned on the described pipeline, and described pressure unit is positioned at described delivery side of pump place.
Preferably, described simulation frictional resistance determinator also comprises framework, and described preparation still and described test bobbin carriage are installed in the top of described framework, and described pump is installed in the below of described framework.
As mentioned above, according to simulation frictional resistance determinator of the present invention, guarantee the temperature stabilization of liquid in the liquid circulation loop by control temperature unit, by the fluid flow in the Automatic Control Unit setting liquid circulation loop, measure the pressure reduction at testing tube two ends and collect data by Automatic Control Unit by load cell again and process, thereby can determine accurately and quickly the drag-reduction effect of drag reducer, for scientifically estimating and selecting drag reducer that foundation is provided, and resistance-reducing yield in the measuring cell is suitable for the mensuration research of drag in the laboratory exactly.
Description of drawings
Accompanying drawing is to be used to provide a further understanding of the present invention, and consists of the part of instructions, is used from explanation the present invention with following embodiment one, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the process flow diagram that shows according to the simulated determination device of one embodiment of the present invention.
Fig. 2 is the process flow diagram that shows according to the simulated determination device of another embodiment of the invention.
Description of reference numerals
1 preparation still, 2 pumps
3 frequency converters, 4 test bobbin carriages
5 testing tubes, 6 Heating Cyclic devices
7 flowmeters, 8 differential pressure transmitters
9 thermometers 10,11 pressure units
12 controllers 13,14 pipelines
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.Should be understood that, embodiment described herein only is used for description and interpretation the present invention, is not limited to the present invention.
Fig. 1 is the process flow diagram that shows according to simulated determination device of the present invention.As shown in Figure 1, the simulation frictional resistance determinator according to this embodiment comprises: liquid-circulating unit, control temperature unit and Automatic Control Unit.
On concrete structure, described liquid-circulating unit comprises: preparation still 1, pump 2, testing tube 5, load cell and pipeline 13, and preparation still 1 and testing tube 5 are communicated with to consist of liquid circulation loop by pipeline 13, and described pump 2 is arranged on the described pipeline 13.
Particularly, in the present embodiment, described pump 2 adopts gear-type pumps, and the caliber of described testing tube 5 is that 1/8 inch～1 inch, length are 1 meter～3 meters.
As shown in Figure 1, be the differential pressure transmitter 8 that is connected in described testing tube 5 two ends according to the load cell of the simulation friction drag testing device of one embodiment of the present invention, described differential pressure transmitter 8 can directly be measured the pressure differential at described testing tube 5 two ends.
Particularly, in the present embodiment, described preparation still 1 has chuck, described testing tube 5 is placed in the described test bobbin carriage 4 and adopts support to fix, and two ports of described testing tube 5 are drawn described test bobbin carriage 4, preferably, described testing tube 5 dishes are placed in the described test bobbin carriage 4, described test bobbin carriage 4 is provided with heat-insulation layer and is provided with thermometer 9.
As described in Figure 1, the control temperature unit of the simulation frictional resistance determinator of present embodiment comprises: chuck, described test bobbin carriage 4, Heating Cyclic device 6, thermometer 9 and the pipeline 14 of preparation still 1, the chuck of described preparation still 1, described test bobbin carriage 4 and Heating Cyclic device 6 are communicated with formation temperature control closed circuit by pipeline 14.Described control temperature unit can make the temperature of the liquid in the described liquid circulation loop keep stable.
Particularly, as described in Figure 1, the Automatic Control Unit of the simulation frictional resistance determinator of present embodiment comprises controller 12 and the frequency converter 3, flowmeter 7 and the pressure unit 10 that are electrically connected with this controller 12 respectively.
Particularly, in the present embodiment, the frequency converter that described frequency converter 3 carries for described pump 2, can change the top hole pressure of described pump 2 by regulating described frequency converter 3, the described pressure unit 10 in the exit of the top hole pressure of described pump 2 by being connected in described pump 2 is measured, and described flowmeter 7 and described pressure unit 10 are separately positioned on the described pipeline 13.
As shown in Figure 1, according to the simulation frictional resistance determinator of present embodiment in the course of the work the data transfer direction of Automatic Control Unit represented by arrow among the figure, the force value in the pressure difference at testing tube 5 two ends that the flow value in the liquid circulation loop that described flowmeter 7 records, described differential pressure transmitter 8 record and pump 2 exits that described pressure unit 10 records is sent to described controller 12.Flow value in the liquid circulation loop that the described flowmeter 7 of foundation records, described controller 12 transmitted signals are regulated described frequency converter 3 to change the pump intake pressure of described pump 2, thereby regulate the fluid flow in the described liquid circulation loop, described flow value feeds back to controller 12 by flowmeter 7.The data of the pressure difference at testing tube 5 two ends that the described differential pressure transmitter 8 of controller 12 continuous acquisition records are by the testing result of calculating and can obtain drag, and described testing result can be shown by display.
Particularly, also comprise framework according to the simulation frictional resistance determinator of present embodiment, described preparation still 1, described test bobbin carriage 4 are installed in the top of described framework, convenient operation.Described pump 2 is installed in the below of described framework, and preferably, described pump 2 is installed on the ground, can alleviate thus the vibration that produces in pump 2 courses of work.
Fig. 2 is the process flow diagram that shows according to the simulated determination device of another embodiment of the invention.As described in Figure 2, load cell according to the simulation friction drag testing device of another embodiment of the invention is two pressure units 11, described two pressure units are connected to the two ends of described testing tube 5 respectively to measure respectively the force value at described testing tube 5 two ends, controller 12 receives described two force value that pressure unit 11 records, and is converted to the pressure difference value at described testing tube 5 two ends.Other ingredient of the simulation frictional resistance determinator of this embodiment and the simulation frictional resistance determinator shown in constituted mode and Fig. 1 thereof identical, the present invention is no longer unnecessary to this.
In the simulation frictional resistance determinator of present embodiment, the setting range of fluid flow is 0.3～10m in the liquid circulation loop
3/ h.
Below will describe the method for measuring drag according to the described simulation frictional resistance determinator of present embodiment of using in detail.
The experimental liquid that simulation frictional resistance determinator according to the present invention is measured employing is generally the aqueous solutions of polymers that clear water or drag reducer and clear water are mixed with according to a certain percentage.
The concrete steps of using described simulation frictional resistance assay method to measure drag are:
After recording the pressure difference at testing tube 5 two ends under the different flow, can judge simply with this resistance reducing performance of test substance, relatively under same flow, when adding respectively the described aqueous solutions of polymers of drag reducer to be measured or clear water in the described liquid circulation loop, the pressure difference at measured testing tube 5 two ends, if the pressure difference that records when adding drag reducer to be measured in the described liquid circulation loop is starkly lower than the pressure difference that records when adding clear water in the described liquid circulation loop, then this drag reducer to be measured of explanation has resistance reducing performance.
And, by the pressure difference data that above-mentioned steps records, can determine the resistance-reducing yield of drag reducer according to following formula:
In the formula:
η '---aqueous solutions of polymers represents with percentage with respect to the resistance-reducing yield of clear water,
Δ P---the pressure reduction at described testing tube 5 two ends when adding clear water in the liquid circulation loop, unit is kPa (kPa),
Δ P '---the pressure reduction at described testing tube 5 two ends when adding aqueous solutions of polymers in the liquid circulation loop, unit is kPa (kPa);
When drag reducer is detected, calculate the resistance-reducing yield under the different flow, and compare, under same traffic, only have when aqueous solutions of polymers with respect to the resistance-reducing yield of clear water greater than 0 the time, this drag reducer just has drag-reduction effect, and aqueous solutions of polymers is larger with respect to the value of the resistance-reducing yield of clear water, and then the drag-reduction effect of this drag reducer is better.
The present invention can also be used for the drag-reduction effect of more different drag reducers.Still adopt above identical operation, the detection data to different drag reducers can be compared, under identical flow, the drag-reduction effect of the drag reducer that the numerical value of the resistance-reducing yield that is calculated by above-mentioned formula is larger is better.
Below describe by reference to the accompanying drawings embodiments of the present invention in detail; but; the present invention is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
Claims (10)
1. simulate the frictional resistance determinator for one kind, be used for measuring the drag-reduction effect of drag reducer, it is characterized in that, this simulation frictional resistance determinator comprises preparation still (1), pump (2), testing tube (5) and load cell, described preparation still (1) and described testing tube (5) are communicated with to consist of liquid circulation loop by pipeline (13), described pump (2) is arranged on the described pipeline (13), and described load cell is arranged on the two ends of described testing tube (5).
2. simulation frictional resistance determinator according to claim 1 is characterized in that, described load cell is for being connected in the differential pressure transmitter (8) at described testing tube (5) two ends.
3. simulation frictional resistance determinator according to claim 1 is characterized in that, described load cell is for being separately positioned on two pressure units (11) at described testing tube (5) two ends.
4. simulation frictional resistance determinator according to claim 1 is characterized in that, the caliber of described testing tube (5) is that 1/8 inch～1 inch, length are 1 meter～3 meters.
5. simulation frictional resistance determinator according to claim 1 is characterized in that, described preparation still (1) has chuck.
6. simulation frictional resistance determinator according to claim 5, it is characterized in that, described simulation frictional resistance determinator also comprises test bobbin carriage (4) and Heating Cyclic device (6), and chuck inside, the described test bobbin carriage (4) of described preparation still (1) and the Heating Cyclic device (6) of being connected connect to form the temperature control closed circuit by pipeline (14).
7. simulation frictional resistance determinator according to claim 6, it is characterized in that, the outer setting of described test bobbin carriage (4) has heat-insulation layer, and be provided with thermometer (9), described testing tube (5) is placed in the described test bobbin carriage (4) and two ends stretch out in described test bobbin carriage (4).
8. simulation frictional resistance determinator according to claim 7 is characterized in that, the described testing tube (5) in described test bobbin carriage (4) adopts support to fix.
9. the described simulation frictional resistance of any one determinator according to claim 1-8, it is characterized in that, described simulation frictional resistance determinator also comprises Automatic Control Unit, this Automatic Control Unit comprises controller (12) and the frequency converter (3) that is electrically connected with this controller (12) respectively, flowmeter (7) and pressure unit (10), the frequency converter that wherein said frequency converter (3) carries for described pump (2), described flowmeter (7) and pressure unit (10) are separately positioned on the described pipeline (13), and described pressure unit (10) is positioned at the exit of described pump (2).
10. simulation frictional resistance determinator according to claim 9, it is characterized in that, described simulation frictional resistance determinator also comprises framework, and described preparation still (1) and described test bobbin carriage (4) are installed in the top of described framework, and described pump (2) is installed in the below of described framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103105355A CN103048243A (en) | 2011-10-13 | 2011-10-13 | Simulative friction measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103105355A CN103048243A (en) | 2011-10-13 | 2011-10-13 | Simulative friction measuring device |
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| CN103048243A true CN103048243A (en) | 2013-04-17 |
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| CN2011103105355A Pending CN103048243A (en) | 2011-10-13 | 2011-10-13 | Simulative friction measuring device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389358A (en) * | 2013-07-04 | 2013-11-13 | 北京仁创科技集团有限公司 | Apparatus for evaluating frictional-resistance performance of propping agent in pipelines |
| CN106680145A (en) * | 2015-11-05 | 2017-05-17 | 中国石油天然气股份有限公司 | Liquid pipeline friction resistance measuring device and method using same |
| CN107356365A (en) * | 2017-07-10 | 2017-11-17 | 中国矿业大学 | Experimental device and method for drag reduction effect of drag reducer in water ring vacuum pump |
| CN109135714A (en) * | 2018-09-17 | 2019-01-04 | 佛山市禅城区诺高环保科技有限公司 | A kind of preparation method of long-acting antiseptic resistance-reducing agent |
| CN109632574A (en) * | 2018-12-25 | 2019-04-16 | 天津亿利科能源科技发展股份有限公司 | The evaluation method of drag reducer additional amount in offshore oil and gas field gathering line |
| CN110261062A (en) * | 2019-05-24 | 2019-09-20 | 西安交通大学 | A kind of screening of drag reducer and evaluating apparatus and application method |
| CN110763265A (en) * | 2018-07-25 | 2020-02-07 | 中国石油化工股份有限公司 | System and method for testing atomization spraying effect of natural gas drag reducer |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389358A (en) * | 2013-07-04 | 2013-11-13 | 北京仁创科技集团有限公司 | Apparatus for evaluating frictional-resistance performance of propping agent in pipelines |
| CN103389358B (en) * | 2013-07-04 | 2016-02-03 | 北京仁创科技集团有限公司 | Propping agent friction performance evaluating apparatus in the duct |
| CN106680145A (en) * | 2015-11-05 | 2017-05-17 | 中国石油天然气股份有限公司 | Liquid pipeline friction resistance measuring device and method using same |
| CN107356365A (en) * | 2017-07-10 | 2017-11-17 | 中国矿业大学 | Experimental device and method for drag reduction effect of drag reducer in water ring vacuum pump |
| CN110763265A (en) * | 2018-07-25 | 2020-02-07 | 中国石油化工股份有限公司 | System and method for testing atomization spraying effect of natural gas drag reducer |
| CN110763265B (en) * | 2018-07-25 | 2021-08-31 | 中国石油化工股份有限公司 | System and method for testing atomization spraying effect of natural gas drag reducer |
| CN109135714A (en) * | 2018-09-17 | 2019-01-04 | 佛山市禅城区诺高环保科技有限公司 | A kind of preparation method of long-acting antiseptic resistance-reducing agent |
| CN109632574A (en) * | 2018-12-25 | 2019-04-16 | 天津亿利科能源科技发展股份有限公司 | The evaluation method of drag reducer additional amount in offshore oil and gas field gathering line |
| CN110261062A (en) * | 2019-05-24 | 2019-09-20 | 西安交通大学 | A kind of screening of drag reducer and evaluating apparatus and application method |
| CN110261062B (en) * | 2019-05-24 | 2020-05-22 | 西安交通大学 | Drag reducer screening and evaluating device and using method |
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Application publication date: 20130417 |