CN113803641A - Small-sized emulsification viscosity-reduction pipe conveying evaluation experimental device and method - Google Patents
Small-sized emulsification viscosity-reduction pipe conveying evaluation experimental device and method Download PDFInfo
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- CN113803641A CN113803641A CN202111068680.7A CN202111068680A CN113803641A CN 113803641 A CN113803641 A CN 113803641A CN 202111068680 A CN202111068680 A CN 202111068680A CN 113803641 A CN113803641 A CN 113803641A
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- 238000011156 evaluation Methods 0.000 title claims abstract description 41
- 238000004945 emulsification Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012360 testing method Methods 0.000 claims abstract description 50
- 230000009467 reduction Effects 0.000 claims abstract description 18
- 239000000725 suspension Substances 0.000 claims description 23
- 239000000839 emulsion Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000002474 experimental method Methods 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000001804 emulsifying effect Effects 0.000 claims 1
- 238000010008 shearing Methods 0.000 abstract description 13
- 239000012530 fluid Substances 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 24
- 238000005259 measurement Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000002569 water oil cream Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D3/00—Axial-flow pumps
- F04D3/02—Axial-flow pumps of screw type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/14—Conveying liquids or viscous products by pumping
Abstract
The invention discloses a small-sized emulsification and viscosity reduction pipe conveying evaluation experimental device and a method, wherein the small-sized emulsification and viscosity reduction pipe conveying evaluation experimental device comprises an oil tank, a power supply system, a test pipeline system, a temperature control system and a control terminal for evaluation; the power system comprises a circular pipe and a helical blade arranged in the circular pipe; the test pipeline system comprises a test loop and a plurality of test elements, one end of the circular pipe is connected with the oil tank and the first end of the test loop, and the other end of the circular pipe is connected with the second end of the test loop; the temperature control system comprises a sleeve, and the circular tube and the test loop are both provided with sleeves; the control terminal is connected with a plurality of test elements; according to the fluid flow shearing device, the helical blades are used as driving structures, the over-pump shearing problem is improved, and the influence of the over-pump shearing problem on the fluid rheological property is reduced; on the premise of ensuring the consistency of the flow form and the pipe transportation, the influence of the shearing of the circulating pump is improved, so that the pipe transportation evaluation experimental device is closer to the field gathering and transportation condition.
Description
Technical Field
The disclosure belongs to the technical field of experimental devices, and particularly relates to a small-sized emulsification viscosity-reduction pipe conveying evaluation experimental device and method.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Along with the gradual reduction of conventional energy, the development and utilization of unconventional energy are more and more emphasized, and the thickened oil is one of unconventional energy; the thickened oil has the characteristics of high viscosity, complex components and the like, so that the exploitation and the pipe transportation are difficult; therefore, during the process of heavy oil recovery and pipeline transportation, the viscosity of the heavy oil must be reduced; the emulsification and viscosity reduction method has attracted general attention due to obvious viscosity reduction effect; when the oil-water emulsion suspension is conveyed in a pipeline, the flow characteristics of the emulsion suspension become complex due to the influence of factors such as shearing action (including shearing strength and shearing time), temperature and the like, and the flow state of the oil-water emulsion suspension in the pipeline is difficult to predict; and because the instability of the emulsion suspension can cause unexpected situations during pipe transportation, an evaluation experimental device for emulsion viscosity-reducing pipe transportation needs to be developed, so that the emulsion viscosity-reducing pipe transportation can be evaluated more accurately, and a basis is provided for on-site gathering and transportation.
However, the existing evaluation device has clear advantages and disadvantages, and the rotational viscometer method is suitable for measuring the characteristics of single-phase fluid, but the flow form of the rotational viscometer method is inconsistent with the tube conveying; the stirrer method can be used for quantitative simulation and is suitable for laboratories; the flow form of the test loop method is consistent with that of pipe transportation, but the problem of circulating over-pump shearing exists; the circular tube transport simulation method is not beneficial to the measurement of samples with possible deposition, and the quantitative simulation problem is not solved well; the inventor finds that the conventional pipe transportation evaluation experimental device adopts a pump as a power source, so that the problem of repeated pump shearing exists, the rheological property of the fluid is greatly influenced, and the pipe transportation evaluation experimental device and the field gathering and transportation situation have larger difference.
Disclosure of Invention
In order to solve the problems, the disclosure provides a small-sized emulsification and viscosity reduction pipe conveying evaluation experimental device and a small-sized emulsification and viscosity reduction pipe conveying evaluation experimental method; according to the method, the related principle of the screw conveyor is referred, the screw blade is used as a driving structure, the over-pumping shearing problem is improved, and the influence of the over-pumping shearing problem on the rheological property of the fluid is reduced; on the premise of ensuring the consistency of the flow form and the pipe transportation, the influence of the shearing of the circulating pump is improved, so that the pipe transportation evaluation experimental device is closer to the field gathering and transportation condition.
In order to realize above-mentioned purpose, the first aspect, this disclosure provides a small-size emulsification viscosity-reducing pipe is defeated to be appraised experimental apparatus, adopts following technical scheme:
a small-sized emulsification and viscosity reduction pipe conveying evaluation experimental device comprises an oil tank, a power supply system, a testing pipeline system, a temperature control system and a control terminal for evaluation;
the power system comprises a circular pipe and a helical blade arranged in the circular pipe;
the test pipeline system comprises a test loop and a plurality of test elements, one end of the circular pipe is connected with the oil tank and the first end of the test loop, and the other end of the circular pipe is connected with the second end of the test loop;
the temperature control system comprises a sleeve, and the circular tube and the test loop are both provided with sleeves;
the control terminal is connected with a plurality of test elements.
Furthermore, the power system also comprises a motor and a coupler, and the helical blade is fixed on the transmission shaft; the motor is arranged outside the circular tube and is connected with the transmission shaft through the coupler.
Further, a first valve and a second valve are arranged between the oil tank and the cylinder; the second valve is a gas inlet valve.
Furthermore, the test loop is a double-layer stainless steel sleeve and comprises a semicircular pipe section and a straight pipe section.
Furthermore, a third valve, a first pressure transmitter and a fourth valve are arranged at the first end of the test loop; and a flowmeter, a second pressure transmitter and a thermometer are arranged at the second end of the test loop.
Further, the third valve is a control valve; and the fourth valve is an emptying valve.
Further, the flowmeter is a mass flowmeter.
Furthermore, the temperature control system also comprises a circulating water bath, a water pump and a fifth valve; the sleeve is divided into a first sleeve which is mutually connected and sleeved on the semicircular pipe section, a second sleeve which is sleeved on the circular pipe and a third sleeve which is sleeved on the straight pipe section; one end of the circulating water bath is connected with the first sleeve through the water pump and the fifth valve, and the other end of the circulating water bath is directly connected with the third sleeve.
Furthermore, the control terminal is connected with the PLC and the instrument transmitter.
In order to achieve the above object, in a second aspect, the present disclosure provides a small emulsion viscosity-reducing pipe transportation evaluation experimental method, which adopts the small emulsion viscosity-reducing pipe transportation evaluation experimental apparatus according to the first aspect, and mainly includes:
the thick oil emulsion suspension enters the round pipe through the first valve; when the whole experimental device is filled with the thick oil emulsion suspension, starting the motor to drive the helical blade to rotate;
the flow meter, the first pressure transmitter, the second pressure transmitter and the thermometer monitor real-time operating parameters within the test loop;
and comparing the real-time operation parameters with a preset threshold value to realize the conveying evaluation of the emulsion suspension in the pipeline.
Compared with the prior art, the beneficial effect of this disclosure is:
the circular tube helical blade is adopted, so that the shearing stress of the circulating over-pump is reduced, the flowing stability of the thick oil emulsion suspension is greatly enhanced, the flowing form can be kept consistent with the gathering and transportation field, the pipe transportation evaluation experimental device is closer to the field gathering and transportation condition, and the method has important significance for accurately predicting the pipeline transportation of the emulsion suspension and improving the economic benefit of an oil field.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the present embodiments, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the present embodiments and together with the description serve to explain the present embodiments without unduly limiting the present embodiments.
Fig. 1 is a schematic structural diagram of embodiment 1 of the present disclosure;
FIG. 2 is a schematic view of a circular tube helical blade of example 1 of the present disclosure;
the system comprises an oil tank 1, an oil tank 2, a first valve 3, a second valve 4, a round pipe 5, a motor 6, a third valve 7, a first pressure transmitter 8, a fourth valve 9, a circulating water bath 10, a water pump 11, a fifth valve 12, a thermometer 13, a second pressure transmitter 14 and a flowmeter.
The specific implementation mode is as follows:
the present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
Example 1:
as shown in fig. 1, the present disclosure provides a small-sized emulsification and viscosity-reduction pipe transportation evaluation experimental apparatus, which includes an oil tank, a power supply system, a test pipeline system, a temperature control system, and an evaluation system;
the power system comprises a motor 5, a frequency converter, a coupler, a circular tube 4 and a helical blade arranged in the circular tube 4; the helical blade is fixed on the transmission shaft; the motor 5 is connected with the transmission shaft through the coupler, and the frequency converter adjusts the rotating speed of the motor 5; preferably, the power of the motor 5 and the frequency converter is 1.5kW, and the helical blades are 380mm long, 50mm pitch, 3mm thick, 62mm outer diameter and 24mm inner diameter (i.e. transmission shaft diameter).
It should be noted that the motor 5 may be directly fixed to the exterior of the circular tube by means of bolt fastening, and may also be fixed by setting a bracket or a base.
The test pipeline system comprises a test loop and a plurality of test elements, one end of the circular pipe 4 is connected with the oil tank 1 and the first end of the test loop, and the other end of the circular pipe is connected with the second end of the test loop; the test loop comprises a semicircular pipe section and a straight pipe section, and preferably, the test loop is a double-layer stainless steel sleeve with the length of 1.44m, the inner diameter of 27mm and the outer diameter of 52 mm.
In the present embodiment, a first valve 2 and a second valve 3 are further disposed between the oil tank 1 and the cylinder 4; the second valve 2 is a gas inlet valve, which, as will be understood, is connected to an existing gas supply device and is not described in detail herein; a third valve 6, a first pressure transmitter 7 and a fourth valve 8 are arranged at the first end of the test loop; at the second end of the test loop a flow meter 14, a second pressure transmitter 13 and a temperature meter 12 are arranged.
Specifically, the third valve 6 is a control valve, the fourth valve 8 is an emptying valve, and the flow meter 14 is a mass flow meter; the test elements are the first pressure transmitter 7, the second pressure transmitter 13, the thermometer 12 and the mass flow meter 14.
The temperature control system comprises a sleeve, a circulating water bath 9, a water pump 10 and a fifth valve 11, and the sleeve is arranged on the circular pipe 4 and the test loop; specifically, the sleeve is divided into a first sleeve which is connected with each other and sleeved on the semicircular pipe section, a second sleeve which is sleeved on the circular pipe 4 and a third sleeve which is sleeved on the straight pipe section, one end of the circulating water bath 9 is connected with the first sleeve through the water pump 10 and the fifth valve 11, and the other end of the circulating water bath is directly connected with the third sleeve.
The evaluation system comprises a control terminal PLC and an instrument transmitter which are connected with each other, preferably, the control terminal is a data acquisition computer; as can be understood, the data acquisition computer is respectively connected with the first pressure transmitter 7, the second pressure transmitter 13, the thermometer 12 and the flowmeter 14 to realize data acquisition; the PLC completes storage, processing, transmission and the like of acquired data, and the acquisition, processing, transmission and the like are all realized by adopting the prior art, and detailed description is not provided; the instrument transmitter comprises the pressure transmitter, the thermometer, the flowmeter and other measuring parts, and can also comprise an amplifier, a feedback part and the like, so that data amplification and feedback are completed, and the function of the instrument transmitter adopts the prior art.
When the PLC processes the collected data, the PLC processes the collected data to obtain measurement data such as a pressure difference, a temperature, and a flow rate of the suspension in the device, compares the measurement data with a preset threshold, and implements an evaluation result such as a transportation stability of the emulsion suspension in the pipeline according to a comparison result.
Example 2:
the embodiment discloses a small-sized emulsification and viscosity reduction pipe transportation evaluation experimental method, which is characterized in that a small-sized emulsification and viscosity reduction pipe transportation evaluation experimental device as described in embodiment 1 is adopted; the concrete contents are as follows:
the thick oil milky suspension in the oil tank 1 enters the circular tube 4 through the first valve 2, when the thick oil milky suspension is filled in the whole experimental device, the motor 5 is started to drive the helical blade to rotate, and the thick oil milky suspension is driven by the helical blade in the circular tube 4, so that the over-pump shear stress is reduced, the flowing property of the thick oil milky suspension is kept stable, the thick oil milky suspension is closer to the field gathering and transportation condition, and the experimental device realizes circular flow.
The thick oil emulsion suspension passes through the flow meter 14, the second pressure transmitter 13 and the thermometer 12 through the round pipe 4 to enter a test loop after monitoring real-time operation parameters of a pipeline, and the test loop consists of a semicircular pipe section and a straight pipe section, so that the semicircular pipe section has larger curvature and can be treated as the straight pipe section.
The real-time operation parameters are compared with a preset threshold value through the evaluation system, so that the conveying evaluation of the emulsion suspension in the pipeline is realized.
It should be noted that the third valve 6 (control valve) is used for controlling the flow direction of the thick oil emulsion suspension in the pipeline, and specifically, when the third valve 6 is opened, the thick oil emulsion suspension can be circulated in the pipeline to perform an evaluation experiment; when the third valve 6 is closed, the sample in the test tube can be emptied by blowing gas through the second valve 3 and emptying the test tube through the fourth valve 8 (air release valve), and the test tube can be cleaned by blowing cleaning medium through the second valve 3 (air inlet valve). The circulating water bath 9 controls the temperature of the pipeline experiment system, the fourth valve 8 (a vent valve) is used for sampling and venting, and the oil tank 1 is used for early storage preparation of samples.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications and variations. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present embodiment should be included in the protection scope of the present embodiment.
Claims (10)
1. A small-sized emulsification and viscosity reduction pipe conveying evaluation experimental device is characterized by comprising an oil tank, a power supply system, a test pipeline system, a temperature control system and a control terminal for evaluation;
the power system comprises a circular pipe and a helical blade arranged in the circular pipe;
the test pipeline system comprises a test loop and a plurality of test elements, one end of the circular pipe is connected with the oil tank and the first end of the test loop, and the other end of the circular pipe is connected with the second end of the test loop;
the temperature control system comprises a sleeve, and the circular tube and the test loop are both provided with sleeves;
the control terminal is connected with a plurality of test elements.
2. The small-sized emulsification and viscosity reduction pipe conveying evaluation experimental device according to claim 1, wherein the power system further comprises a motor and a coupler, and the helical blade is fixed on the transmission shaft; the motor is arranged outside the circular tube and is connected with the transmission shaft through the coupler.
3. The small-sized emulsification and viscosity reduction pipe transportation evaluation experimental device according to claim 1, wherein a first valve and a second valve are further arranged between the oil tank and the circular pipe; the second valve is a gas inlet valve.
4. The experimental device for evaluating the small-sized emulsifying viscosity-reducing pipe transmission according to claim 1, wherein the testing loop is a double-layer stainless steel sleeve and comprises a semicircular pipe section and a straight pipe section.
5. The small-sized emulsification and viscosity reduction pipe conveying evaluation experimental device according to claim 1, wherein a third valve, a first pressure transmitter and a fourth valve are arranged at a first end of the testing loop; and a flowmeter, a second pressure transmitter and a thermometer are arranged at the second end of the test loop.
6. The small-sized emulsification and viscosity reduction pipe transportation evaluation experimental device according to claim 5, wherein the third valve is a control valve; and the fourth valve is an emptying valve.
7. The small-sized emulsification and viscosity reduction pipe conveying evaluation experimental device according to claim 5, wherein the flow meter is a mass flow meter.
8. The small-sized emulsification and viscosity reduction pipe transportation evaluation experimental device according to claim 1 or 4, wherein the temperature control system further comprises a circulating water bath, a water pump and a fifth valve; the sleeve is divided into a first sleeve which is mutually connected and sleeved on the semicircular pipe section, a second sleeve which is sleeved on the circular pipe and a third sleeve which is sleeved on the straight pipe section; one end of the circulating water bath is connected with the first sleeve through the water pump and the fifth valve, and the other end of the circulating water bath is directly connected with the third sleeve.
9. The small-sized emulsification and viscosity reduction pipe conveying evaluation experimental device according to claim 1, wherein the control terminal is connected with a PLC and an instrument transmitter.
10. A small-sized emulsification and viscosity-reducing pipe transportation evaluation experiment method, which is characterized in that the small-sized emulsification and viscosity-reducing pipe transportation evaluation experiment device according to any one of claims 1 to 9 is adopted, and the method mainly comprises the following steps:
the thick oil emulsion suspension enters the round pipe through the first valve; when the whole experimental device is filled with the thick oil emulsion suspension, starting the motor to drive the helical blade to rotate;
the flow meter, the first pressure transmitter, the second pressure transmitter and the thermometer monitor real-time operating parameters within the test loop;
and comparing the real-time operation parameters with a preset threshold value to realize the conveying evaluation of the emulsion suspension in the pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111068680.7A CN113803641A (en) | 2021-09-13 | 2021-09-13 | Small-sized emulsification viscosity-reduction pipe conveying evaluation experimental device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111068680.7A CN113803641A (en) | 2021-09-13 | 2021-09-13 | Small-sized emulsification viscosity-reduction pipe conveying evaluation experimental device and method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769674A (en) * | 2016-11-25 | 2017-05-31 | 中国石油大学(华东) | A kind of circuit experimental provision for dissolved gas crude oil test |
| CN206431116U (en) * | 2017-02-19 | 2017-08-22 | 东北石油大学 | It is a kind of to evaluate the experimental rig that the defeated shearing effect of pipe influences on wax deposit |
| CN109021957A (en) * | 2018-08-23 | 2018-12-18 | 北京宝辰联合科技股份有限公司 | A kind of viscosity reducer for crude oil and preparation method thereof |
| US20200096452A1 (en) * | 2018-09-21 | 2020-03-26 | Dalian University Of Technology | Fully visual flow loop system for studying hydrate blockage |
-
2021
- 2021-09-13 CN CN202111068680.7A patent/CN113803641A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769674A (en) * | 2016-11-25 | 2017-05-31 | 中国石油大学(华东) | A kind of circuit experimental provision for dissolved gas crude oil test |
| CN206431116U (en) * | 2017-02-19 | 2017-08-22 | 东北石油大学 | It is a kind of to evaluate the experimental rig that the defeated shearing effect of pipe influences on wax deposit |
| CN109021957A (en) * | 2018-08-23 | 2018-12-18 | 北京宝辰联合科技股份有限公司 | A kind of viscosity reducer for crude oil and preparation method thereof |
| US20200096452A1 (en) * | 2018-09-21 | 2020-03-26 | Dalian University Of Technology | Fully visual flow loop system for studying hydrate blockage |
Non-Patent Citations (1)
| Title |
|---|
| 江鹏: "油水乳状悬浮液流动特性研究", 《中国优秀硕士学位论文全文数据库中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
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Application publication date: 20211217 |