CN113755721A - Aluminum-silicon-tellurium-copper magnetic alloy, preparation method and application thereof - Google Patents
Aluminum-silicon-tellurium-copper magnetic alloy, preparation method and application thereof Download PDFInfo
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- CN113755721A CN113755721A CN202010484593.9A CN202010484593A CN113755721A CN 113755721 A CN113755721 A CN 113755721A CN 202010484593 A CN202010484593 A CN 202010484593A CN 113755721 A CN113755721 A CN 113755721A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
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Abstract
The invention relates to an Al-Si-Te-Cu magnetic alloy, a preparation method and application thereof. The Al-Si-Te-Cu magnetic alloy comprises Al, Si, Cu, Te and magnetic metal elements. The Al-Si-Te-Cu magnetic alloy comprises, by 100% of the total mass of the Al-Si-Te-Cu magnetic alloy, 45.6-51.2% of Al, 33.5-37.5% of Si, 9.8-19.5% of Cu, 0.12-0.48% of Te and 0.22-0.29% of magnetic metal elements. The quantum ring prepared from the alloy has the function of effectively preventing scale and/or wax.
Description
Technical Field
The invention relates to a tellurium-aluminum-silicon-copper magnetic alloy and a preparation method thereof, in particular to an application in one of scale prevention and wax prevention.
Background
In the process of oil field exploitation, wax deposition and scaling phenomena often occur, which cause the problems of reduction of the cross section area of an oil flow channel, failure of a piston pump and the like, and bring about serious troubles to the exploitation of oil. The common antiscaling and antiscaling methods at present include mechanical method, physical method and chemical method, the mechanical method mainly adopts a heat exchanger device, the physical method adopts a sound wave method, the chemical method mainly uses a chemical reagent, but the comprehensive effects of antiscaling and antiscaling are poor.
In the field of water treatment, a quantum ring made of a high silicon aluminum alloy purchased from germany is widely used to prevent scale formation of hard water, and a good effect is seen. However, the existing quantum rings made of the alloy only have the effect of preventing hard water from scaling, and have little effect on preventing wax of hydrocarbon-based oil-gas flow.
Disclosure of Invention
The invention provides an aluminum-silicon-tellurium-copper magnetic alloy which comprises aluminum, silicon, copper, tellurium and magnetic metal elements.
In one embodiment, the al content is 45.6% to 51.2%, the si content is 33.5% to 37.5%, the cu content is 9.8% to 19.5%, the te content is 0.12% to 0.48%, and the magnetic metal element content is 0.22% to 0.29%, based on 100% of the total mass of the al-si-te-cu magnetic alloy.
In one embodiment, the magnetic metal element is selected from at least one of iron, cobalt, and nickel.
The second invention provides a method for preparing the Al-Si-Te-Cu magnetic alloy, which comprises the following steps:
1) under the protection of first inert gas, melting the tellurium-copper alloy; obtaining tellurium copper fluid;
2) under the protection of second inert gas, melting the aluminum-silicon alloy to obtain aluminum-silicon fluid;
3) under the protection of third inert gas, uniformly mixing the tellurium-copper fluid and the aluminum-silicon fluid to obtain an aluminum-silicon-tellurium-copper alloy;
4) and stabilizing the aluminum-silicon-tellurium-copper alloy in a magnetic field to obtain the aluminum-silicon-tellurium-copper magnetic alloy.
In a specific embodiment, the mass ratio of the tellurium-copper alloy to the aluminum-silicon alloy is 1: (4-9).
In a specific embodiment, the tellurium copper alloy has at least one of QTe1.2, QTe1.0 and QTe0.8; and/or the aluminium-silicon alloy is of type AISi42 and/or AISi 30. For example, the aluminium-silicon alloy of type AISi42 may be an alloy obtained by boiling furnace smelting, and therefore, in this smelting mode, the type may also be written as AISi 42F.
In a specific embodiment, the first inert gas, the second inert gas, and the third inert gas are independently nitrogen.
In one embodiment, in step 1), the tellurium-copper alloy is melted at 1050-.
In one embodiment, in step 2), the aluminum-silicon alloy is melted at 760-.
In one embodiment, in step 4), the AlSi-Te-Cu alloy is stabilized in an alternating magnetic field of 8000-12000 Gs at a magnetic field frequency of 1500-5000 Hz at 650-700 ℃ for 20-60 minutes.
In a specific embodiment, in step 1), a high-frequency electric furnace is used.
In a specific embodiment, in step 2), a high-frequency electric furnace is used.
The third invention provides the application of the Al-Si-Te-Cu magnetic alloy according to any one of the first invention or the Al-Si-Te-Cu magnetic alloy prepared by the method according to any one of the second invention in scale prevention and/or wax prevention.
The fourth invention provides a quantum ring made of the Al-Si-Te-Cu magnetic alloy according to any one of the first invention or the Al-Si-Te-Cu magnetic alloy prepared by the method according to any one of the second invention, wherein the quantum ring comprises an annular quantum ring body (10), and the quantum ring body is constructed to comprise a plurality of quantum tiles (11) which are tightly connected in a circumferential butt joint mode.
In one specific embodiment, the circumferentially adjacent quantum tiles are tightly connected by adopting a connecting screw (2), and the installation direction of the connecting screw is set to be perpendicular to the diameter extension direction of the quantum ring.
In one embodiment, the ratio of the width H to the thickness L of the quantum ring is set to be in the range of 1/3-3, where L ═ D (D-D)/2, D is the outer diameter of the quantum ring 100, and D is the inner diameter of the quantum ring 100.
The invention has the beneficial effects that:
the quantum ring prepared from the Al-Si-Te-Cu magnetic alloy can effectively prevent scale and wax, so that the quantum ring is used for oil wells, gathering pipelines and the like, and has a positive promoting effect on ensuring the efficient and safe development of oil and gas fields.
Drawings
Fig. 1 is a front view of a quantum ring in the present invention.
Fig. 2 is a top view of a quantum ring of the present invention.
Fig. 3 is a schematic view of the installation of one embodiment of the present invention.
FIG. 4 is a photograph comparing the effect of DN80 quantum ring on removing scale from hard water. Wherein, the left graph is the scaling condition before the quantum ring treatment, and the right graph is the scaling condition after the quantum ring treatment.
FIG. 5 is a comparison of DN80 quantum rings versus crude oil viscosity-temperature curves in accordance with the present invention.
Wherein: 100-quantum ring, 2-connecting screw, 10-quantum ring body, 11-quantum tile, 12-connecting through hole, 13-threaded blind hole and 20-pipeline.
Detailed Description
The above-described aspects of the invention are explained in more detail below by means of preferred embodiments, but they are not intended to limit the invention.
The reagents in the examples of the present invention were all commercially available unless otherwise specified.
In the tellurium-copper alloy rod with the model number of QTe1.2, the tellurium content is 1.2 percent, and the copper content is 98 percent.
In an aluminum-silicon alloy ingot of type AISi42F, the aluminum content was 57% and the silicon content was 42%.
Example 1
1) Under the protection of nitrogen, 30Kg of tellurium-copper alloy rod with the model number of QTe1.2 is added into a 100Kg high-frequency electric furnace and melted at 1100 ℃; obtaining tellurium copper fluid;
2) under the protection of nitrogen, 170Kg of aluminum-silicon alloy ingot with the type of AISI42F is added into a 500Kg high-frequency electric furnace and melted at the temperature of 770 ℃ to obtain aluminum-silicon fluid;
3) under the protection of nitrogen, uniformly mixing the tellurium-copper fluid and the aluminum-silicon fluid, and casting to obtain an aluminum-silicon-tellurium-copper alloy casting;
4) and placing the aluminum-silicon-tellurium-copper alloy casting in an environment with the magnetic field intensity of 10000Gs and the magnetic field frequency of 3000Hz, heating to 680 ℃, stabilizing for 40min, and naturally cooling to room temperature to obtain the aluminum-silicon-tellurium-copper alloy.
The content of each element in the alloy is measured according to the method and the equipment specified in the standard of inductively coupled plasma atomic emission spectrometry (SN/T4377-2015) for measuring impurity elements in copper and copper alloy waste: the total mass of the Al-Si-Te-Cu magnetic alloy is 100%, the content of aluminum is 48.5%, the content of silicon is 35.5%, the content of copper is 14.5%, the content of tellurium is 0.15%, the total content of magnetic metal elements of iron and nickel is 0.25%, and the balance is impurities.
Example 2
In the tellurium-copper alloy rod with the model number of QTe1.2, the tellurium content is 1.2 percent, and the copper content is 98 percent.
In an aluminum-silicon alloy ingot of type AISi42F, the aluminum content was 57% and the silicon content was 42%.
1) Under the protection of nitrogen, 30Kg of tellurium-copper alloy rod with the model number of QTe1.2 is added into a 100Kg high-frequency electric furnace and melted at 1050 ℃; obtaining tellurium copper fluid;
2) under the protection of nitrogen, 170Kg of aluminum-silicon alloy ingot with the type of AISI42F is added into a 500Kg high-frequency electric furnace and melted at 760 ℃ to obtain aluminum-silicon fluid;
3) under the protection of nitrogen, uniformly mixing the tellurium-copper fluid and the aluminum-silicon fluid, and casting to obtain an aluminum-silicon-tellurium-copper alloy casting;
4) and (3) placing the aluminum-silicon-tellurium-copper alloy casting in an alternating magnetic field environment with the magnetic field intensity of 10000Gs and the magnetic field frequency of 3000Hz, heating to 650 ℃, stabilizing for 20min, and naturally cooling to room temperature to obtain the aluminum-silicon-tellurium-copper magnetic alloy.
The content of each element in the alloy is measured according to the method and the equipment specified in the standard of inductively coupled plasma atomic emission spectrometry (SN/T4377-2015) for measuring impurity elements in copper and copper alloy waste: the total mass of the Al-Si-Te-Cu magnetic alloy is 100%, the content of aluminum is 48.5%, the content of silicon is 35.5%, the content of copper is 14.5%, the content of tellurium is 0.15%, the content of magnetic metal elements iron and nickel is 0.27%, and the balance is impurities.
Example 3
In the tellurium-copper alloy rod with the model number of QTe1.2, the tellurium content is 1.2 percent, and the copper content is 98 percent.
In an aluminum-silicon alloy ingot of type AISi42F, the aluminum content was 57% and the silicon content was 42%.
1) Under the protection of nitrogen, 30Kg of tellurium-copper alloy rod with the model number of QTe1.2 is added into a 100Kg high-frequency electric furnace and melted at 1150 ℃; obtaining tellurium copper fluid;
2) under the protection of nitrogen, 170Kg of the aluminum-silicon alloy ingot is added into a 500Kg high-frequency electric furnace and melted at 780 ℃ to obtain aluminum-silicon fluid;
3) under the protection of nitrogen, uniformly mixing the tellurium-copper fluid and the aluminum-silicon fluid, and casting to obtain an aluminum-silicon-tellurium-copper alloy casting;
4) and (3) placing the aluminum-silicon-tellurium-copper alloy casting in an alternating magnetic field environment with the magnetic field intensity of 10000Gs and the magnetic field frequency of 3000Hz, heating to 700 ℃, stabilizing for 60min, and naturally cooling to room temperature to obtain the aluminum-silicon-tellurium-copper magnetic alloy.
The content of each element in the alloy is measured according to the method and the equipment specified in the standard of inductively coupled plasma atomic emission spectrometry (SN/T4377-2015) for measuring impurity elements in copper and copper alloy waste: the total mass of the Al-Si-Te-Cu magnetic alloy is 100%, the content of aluminum is 48.5%, the content of silicon is 35.6%, the content of copper is 14.7%, the content of tellurium is 0.15%, the content of magnetic metal elements iron and nickel is 0.22%, and the balance is impurities.
Example 4
1) Under the protection of nitrogen, 40Kg of tellurium-copper alloy rod with the model number of QTe1.2 is added into a 100Kg high-frequency electric furnace and melted at 1100 ℃; obtaining tellurium copper fluid;
2) under the protection of nitrogen, 160Kg of aluminum-silicon alloy ingot with the type of AISI42F is added into a 500Kg high-frequency electric furnace and melted at the temperature of 770 ℃ to obtain aluminum-silicon fluid;
3) under the protection of nitrogen, uniformly mixing the tellurium-copper fluid and the aluminum-silicon fluid, and casting to obtain an aluminum-silicon-tellurium-copper alloy casting;
4) and (3) placing the aluminum-silicon-tellurium-copper alloy casting in an alternating magnetic field environment with the magnetic field intensity of 12000Gs and the magnetic field frequency of 5000Hz, heating to 680 ℃, stabilizing for 40min, and naturally cooling to room temperature to obtain the aluminum-silicon-tellurium-copper alloy.
The content of each element in the alloy is measured according to the method and the equipment specified in the standard of inductively coupled plasma atomic emission spectrometry (SN/T4377-2015) for measuring impurity elements in copper and copper alloy waste: the total mass of the Al-Si-Te-Cu magnetic alloy is 100%, the content of aluminum is 45.6%, the content of silicon is 33.5%, the content of copper is 19.5%, the content of tellurium is 0.48%, the content of magnetic metal elements iron and nickel is 0.29%, and the balance is impurities.
Example 5
1) Under the protection of nitrogen, 20Kg of tellurium-copper alloy rod with the model number of QTe1.2 is added into a 100Kg high-frequency electric furnace and melted at 1100 ℃; obtaining tellurium copper fluid;
2) under the protection of nitrogen, 180Kg of aluminum-silicon alloy ingot with the type AISI42F is added into a 500Kg high-frequency electric furnace and melted at the temperature of 770 ℃ to obtain aluminum-silicon fluid;
3) under the protection of nitrogen, uniformly mixing the tellurium-copper fluid and the aluminum-silicon fluid, and casting to obtain an aluminum-silicon-tellurium-copper alloy casting;
4) and placing the aluminum-silicon-tellurium-copper alloy casting in an alternating magnetic field with the magnetic field intensity of 8000Gs and the magnetic field frequency of 1500Hz, heating to 680 ℃, stabilizing for 40min, and naturally cooling to room temperature to obtain the aluminum-silicon-tellurium-copper alloy.
The content of each element in the alloy is measured according to the method and the equipment specified in the standard of inductively coupled plasma atomic emission spectrometry (SN/T4377-2015) for measuring impurity elements in copper and copper alloy waste: the total mass of the Al-Si-Te-Cu magnetic alloy is 100%, the aluminum content is 51.2%, the silicon content is 37.5%, the copper content is 9.8%, the tellurium content is 0.12%, the magnetic metal elements of iron and nickel are 0.26%, and the balance is impurities.
Example 6
Preparation of the Quantum Ring
Fig. 1 and 2 together show the structure of the quantum ring of the present invention. As shown in fig. 1, the quantum ring 100 includes a quantum ring body 10, and the quantum ring body 10 has an annular shape. The quantum ring body 10 is configured to include a plurality of quantum tiles 10, and the quantum tiles 11 are arranged in an arc shape. A plurality of quantum tiles 10 are arranged in an equal diameter concentric equal width configuration. In the embodiment shown in fig. 1, the quantum ring body 10 is arranged to comprise 3 quantum tiles 10.
According to the present invention, a plurality of quantum tiles 11 are butted to form an annular quantum ring body 10. The circumferentially adjacent quantum ring bodies 10 are fastened and connected by adopting the connecting screw 2. As shown in fig. 1, a connection through hole 12 for mounting the connection screw 2 is provided on the first circumferential end surface of the quantum tile 11, and the connection through hole 12 extends in a direction perpendicular to the first circumferential end surface of the quantum tile 11 and penetrates through the quantum tile 11. And a threaded blind hole 13 capable of corresponding to the connecting through hole 12 is arranged on the second circumferential end surface of the quantum tile 11, and the threaded blind hole 13 extends partially along the direction perpendicular to the second circumferential end surface of the quantum tile 11.
When the quantum ring 100 is installed in a butt joint manner, a first circumferential end face of one quantum tile 11 is in butt joint with a second circumferential end face of another circumferentially adjacent quantum tile 11, so that the connecting through hole 12 on the first circumferential end face of one quantum tile 11 is in fit butt joint with the threaded blind hole 13 on the second circumferential end face of the circumferentially adjacent quantum tile 11. The connecting screw 2 penetrates through the connecting through hole 12 and is fixedly installed in the threaded blind hole 13 to form a fixed connection with the threaded blind hole, so that the circumferentially adjacent quantum tiles 11 form a fastening connection. In this way, the plurality of quantum tiles 11 are butted to form the annular quantum ring 100. After the quantum ring 100 is mounted, the central axis direction of the connection screw 2 is perpendicular to the diameter direction of the quantum ring 100. The connecting screw 2 is preferably an M10 screw. The installation mode of the connecting screw 2 not only can effectively ensure the tightness of connection between circumferentially adjacent quantum tiles 11, but also is convenient to install and disassemble.
According to the present invention, the ratio of the width H to the thickness L of the quantum ring 100 is set in the range of 1/3 to 3, where L ═ D (D-D)/2. H is the width of the quantum ring 100, L is the thickness of the quantum ring 100, D is the outer diameter of the quantum ring 100, and D is the inner diameter of the quantum ring 100.
In actual use, as shown in fig. 3, the quantum ring 100 is fitted around the outside of the pipe 20. In order to enhance the effect of the quantum rings 100, 1 to 3 quantum rings 100 may be sleeved on the outside of the pipe according to the installation manner shown in fig. 3, and the axially adjacent quantum rings 100 are arranged at intervals. The inner diameter d of the quantum ring 100 according to the present invention is set according to the outer diameter of the pipe 20 used, and the inner diameter d of the quantum ring 100 is set to be 3-5mm larger than the outer diameter of the pipe 20. This greatly facilitates the installation of the quantum ring 100 over the pipe 20.
Example 7
Measurement of Scale inhibition Property
A quantum ring was prepared from the alloys of examples 1 to 5, respectively, according to preparation example 6, and placed on a line of DN50, and oily sewage was passed through at a rate of 0.5 m/s. The setting without a quantum ring installed on the DN50 pipeline is taken as the pretreatment. The fouling rates before and after the quantum ring treatment were determined by the coupon method and the results are shown in table 1. Wherein the fouling before and after treatment of the quantum rings prepared using the alloy of example 1 is shown in figure 4.
TABLE 1
| Examples | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Scale formation Rate (mm/a) before treatment | 22 | 16 | 19.5 | 18 | 21 |
| Fouling rate (mm/a) after treatment | 1.8 | 1.05 | 1.35 | 3.2 | 3.6 |
| Scale inhibition ratio (%) | 91.2 | 93.4 | 93.1 | 82.2 | 82.9 |
Example 8
Measurement of wax control Property
The alloys of examples 1 to 5 were used to make a quantum ring according to example 6, respectively, and installed on the crude oil outlet line of a TK201 well. The arrangement without a quantum ring installed on the crude oil outlet line of TK201 well was used as a pre-treatment. The wax deposition rates before and after the quantum ring treatment were determined according to the SY/T6300 industry standard and the results are shown in Table 2.
TABLE 2
| Examples | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Wax deposition rate (mm/d) before treatment | 17 | 17 | 17 | 17 | 17 |
| Wax deposition rate (mm/d) after treatment | 2.6 | 2.45 | 2.2 | 4.5 | 3.8 |
| Percent wax control (%) | 84.7 | 85.6 | 87.1 | 73.5 | 77.6 |
Example 9
Determination of crude oil viscosity
The alloys of examples 1 to 5 were used to make a quantum ring according to example 6, respectively, and installed on the crude oil outlet line of a TK201 well. The arrangement without a quantum ring installed on the crude oil outlet line of TK201 well was used as a pre-treatment. The viscosities of the crude before and after the quantum ring treatment were measured at different temperatures according to the method standard in the SY/T6300 industry. The crude oil versus temperature graph before and after the quantum ring treatment in which the alloy of example 1 was used is shown in fig. 5.
Claims (10)
1. An Al-Si-Te-Cu magnetic alloy comprises Al, Si, Cu, Te and magnetic metal elements.
2. The al-si-te-fe-cu magnetic alloy as claimed in claim 1, wherein the al content is 45.6 to 51.2%, the si content is 33.5 to 37.5%, the cu content is 9.8 to 19.5%, the te content is 0.12 to 0.48%, and the magnetic metal element content is 0.22 to 0.29% based on 100% of the total mass of the al-si-te-cu magnetic alloy.
3. The al-si-te-fe-cu magnetic alloy according to claim 1 or 2, characterized in that the magnetic metal element is selected from at least one of fe, co and ni.
4. A method of producing the al-si-te-cu magnetic alloy according to any one of claims 1 to 3, comprising the steps of:
1) under the protection of first inert gas, melting the tellurium-copper alloy; obtaining tellurium copper fluid;
2) under the protection of second inert gas, melting the aluminum-silicon alloy to obtain aluminum-silicon fluid;
3) under the protection of third inert gas, uniformly mixing the tellurium-copper fluid and the aluminum-silicon fluid to obtain an aluminum-silicon-tellurium-copper alloy;
4) and stabilizing the aluminum-silicon-tellurium-copper alloy in a magnetic field to obtain the aluminum-silicon-tellurium-copper magnetic alloy.
5. The method according to claim 4, wherein the mass ratio of the tellurium-copper alloy to the aluminum-silicon alloy is 1: (4-9);
preferably, the tellurium copper alloy is at least one of QTe1.2, QTe1.0 and QTe0.8 in model number; and/or the aluminium-silicon alloy is of type AISi42 and/or AISi 30.
6. The method of claim 4 or 5, wherein the first inert gas, the second inert gas, and the third inert gas are independently nitrogen.
7. The method as claimed in any one of claims 4 to 6, wherein in step 1), the tellurium-copper alloy is melted at 1050-; and/or
In the step 2), melting the aluminum-silicon alloy at 760-780 ℃; and/or
In step 4), the Al-Si-Te-Cu alloy is stabilized in an alternating magnetic field with the magnetic field frequency of 1500-5000 Hz at 650-700 ℃ for 20-60 minutes in 8000-12000 Gs.
8. Use of an Al-Si-Te-Cu magnetic alloy according to any one of claims 1 to 3 or an Al-Si-Te-Cu magnetic alloy produced by a method according to any one of claims 4 to 7 for scale control and/or wax control.
9. A quantum ring made of the al-si-te-cu magnetic alloy according to any one of claims 1 to 3 or the al-si-te-cu magnetic alloy produced by the method according to any one of claims 4 to 7, comprising an annular quantum ring body (10) configured to comprise a plurality of quantum tiles (11) forming a fastening connection in a circumferential butt joint manner.
10. The quantum ring of claim 9, wherein the circumferentially adjacent quantum tiles are tightly connected with each other by a connecting screw (2), and the mounting direction of the connecting screw is perpendicular to the diameter extension direction of the quantum ring; and/or
The ratio of the width H to the thickness L of the quantum ring is set to be in the range of 1/3-3, where L ═ D/2, D is the outer diameter of the quantum ring 100, and D is the inner diameter of the quantum ring 100.
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