CN104563965A - Magnetic field generating device - Google Patents
Magnetic field generating device Download PDFInfo
- Publication number
- CN104563965A CN104563965A CN201510014537.8A CN201510014537A CN104563965A CN 104563965 A CN104563965 A CN 104563965A CN 201510014537 A CN201510014537 A CN 201510014537A CN 104563965 A CN104563965 A CN 104563965A
- Authority
- CN
- China
- Prior art keywords
- magnetic field
- magnetic
- magnetic patch
- patch
- generation device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 243
- 230000000704 physical effect Effects 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims description 17
- 239000010779 crude oil Substances 0.000 claims description 15
- 230000005415 magnetization Effects 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract 4
- 230000005764 inhibitory process Effects 0.000 abstract 2
- 238000004018 waxing Methods 0.000 abstract 2
- 239000001993 wax Substances 0.000 description 20
- 230000004907 flux Effects 0.000 description 15
- 239000012188 paraffin wax Substances 0.000 description 9
- 230000003405 preventing effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000008021 deposition Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 108010010803 Gelatin Proteins 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920000159 gelatin Polymers 0.000 description 3
- 239000008273 gelatin Substances 0.000 description 3
- 235000019322 gelatine Nutrition 0.000 description 3
- 235000011852 gelatine desserts Nutrition 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000005292 diamagnetic effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The invention relates to a magnetic field generating device. The magnetic field generating device comprises a plurality of small magnetic blocks; the smaller magnetic blocks are sequentially arranged into a closed annular magnetic field unit arranged on the inner wall of an oil pipeline; or the smaller magnetic blocks are spirally arranged on the inner wall of the oil pipeline in a certain of spiral angle; the small magnetic blocks generate a spatial distributed spiral magnetic field; when petroleum in the oil pipeline passes through the spiral magnetic field, a physical property of the raw petroleum is changed, and viscidity of wax is reduced. The magnetic field generating device is has a magnetic waxing inhibition structure based on a magnetic magic-ring space, the small magnetic blocks in special magnetization direction are combined and stacked to generate the spatial distributed spiral magnetic field, when the petroleum passes through the magnetic field with special distribution and strength, the physical property of the raw petroleum is changed, and an effect of reducing viscidity and waxing inhibition is achieved.
Description
Technical field
The present invention relates to a kind of magnetic field generation device, particularly relate to a kind of magnetic field generation device preventing wax deposition on oily passage.
Background technology
Crude oil is the mixture of the various hydrocarbon of complicated, the crude oil in some oil fields is in recovery process, along with the reduction of the temperature and pressure of crude oil, very easily form wax brilliant, stick on tubing wall, along with the prolongation of operating time, wax layer thickens, and causes the blocking of oil pipe, usually adopts the method for regular well-flushing to be removed, this has not only delayed daily production, also add production cost.
At present, magnetic paraffin control technology uses one of more anti-wax technique.Crude oil is a kind of diamagnetic substance, when crude oil with certain flow velocity through specific magnetic field, magnetic field can have certain effect to crude oil tool, its some chemical physical properties are changed, stop the formation of wax crystalline substance, thus reach the object of adhesion reducing and wax preventing, magnetic effect wax control is exactly based on this principle.
By the difference of magnetic field producing method, magnetic paraffin control device is mainly divided into magneto (using permanent magnet to produce magnetic field) and electromagnetic type (using solenoid to produce magnetic field) two kinds.Electromagnetic type wax-proofing apparatus is because installing the down-hole of circuit, and Operation and Maintenance, and the restraining factors such as power consumption, be difficult to the wax control result reaching expection.
The high-strength rare-earth permanent magnet be alternately arranged in the inner core tube of existing rare earth permanent magnet wax preventing scale prevention device and outer tube forms annular multipole magnetic field, outer tube overcoat magnetic screen pipe.Chinese patent CN202667203U magnetic field is staggered by the rare-earth permanent magnet of the tile-type with certain radian, and be formed radially a complete toroidal magnetic field, but its shortcoming is, the intensity in major part spatially magnetic field is not very high in the axial direction, and magnetic field structure is comparatively complicated, because inner core tube is moved with sucker rod, sucker rod load increases, in addition, for more crisp permanent magnetic material, reciprocating motion also easily causes mechanical failure.
Summary of the invention
The object of the invention is the defect for prior art, a kind of magnetic field generation device is provided, based on the magnetic paraffin control structure that magnetic evil spirit annular space is arranged, utilize the little magnetic patch of the special direction of magnetization through combination and pile up the helical magnetic field producing spatial distribution, when oil is by the magnetic field with specific distribution and intensity, the physical property of crude oil changes, adhesion reducing and wax preventing.
For achieving the above object, the invention provides a kind of magnetic field generation device, described magnetic field generation device comprises: multiple little magnetic patch;
The magnetic field units that described little magnetic patch order is arranged as close ring is arranged on tube inner wall; Or described little magnetic patch is arranged on tube inner wall according to certain pitch helical;
Described little magnetic patch produces the helical magnetic field of spatial distribution, when oil in described oil pipe through described helical magnetic field, the physical property of crude oil changes, and reduces the viscosity of wax.
Further, described magnetic field units is at least one.
Further, described little magnetic patch clockwise or arranged counterclockwise.
Further, described little magnetic patch is fan-shaped.
Further, be that bonding connection or machinery are fixing between described little magnetic patch.
Further, described little magnetic patch is permanent magnet.
The magnetic paraffin control structure that magnetic field generation device of the present invention is arranged based on magnetic evil spirit annular space, utilize the little magnetic patch of the special direction of magnetization through combination and pile up the helical magnetic field producing spatial distribution, when oil is by the magnetic field with specific distribution and intensity, the physical property of crude oil changes, and reaches the effect of adhesion reducing and wax preventing.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of magnetic field generation device embodiment one of the present invention;
Fig. 2 is the direction of magnetization schematic diagram of the little magnetic patch of magnetic field generation device of the present invention;
Fig. 3 is the structural representation of the direction of magnetization of each little magnetic patch in each magnetic field units of magnetic field generation device embodiment one of the present invention
Fig. 4 is the magnetic flux density distribution map vertically of magnetic field generation device embodiment one of the present invention;
Fig. 5 is one of magnetic line of force distribution map in magnetic field generation device embodiment one of the present invention;
Fig. 6 is magnetic line of force distribution map two in magnetic field generation device embodiment one of the present invention;
Fig. 7 is the intensity profile figure of the magnetic flux density in magnetic field body cross section in magnetic field generation device embodiment one of the present invention;
Fig. 8 is the schematic diagram of magnetic field generation device embodiment two of the present invention;
Fig. 9 is the structural representation of the direction of magnetization of each little magnetic patch in each magnetic field units of magnetic field generation device embodiment two of the present invention;
Figure 10 is the magnetic flux density distribution map vertically of magnetic field generation device embodiment two of the present invention;
Figure 11 is one of magnetic line of force distribution map in magnetic field generation device embodiment two of the present invention;
Figure 12 is magnetic line of force distribution map two in magnetic field generation device embodiment two of the present invention;
Figure 13 is the intensity profile figure of the magnetic flux density in magnetic field body cross section in magnetic field generation device embodiment two of the present invention.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Fig. 1 is the schematic diagram of magnetic field generation device embodiment one of the present invention, and as shown in the figure, the magnetic field generation device of the present embodiment comprises multiple little magnetic patch 1.
The magnetic field units that little magnetic patch 1 order is arranged as close ring is arranged on tube inner wall.Little magnetic patch in magnetic field units can be arranged clockwise, or arranged counterclockwise.
Concrete, little magnetic patch is fan-shaped permanent magnet, in the circumferential by polylith (being set to n block) little magnetic patch around forming, the total n kind direction of magnetization.With a certain little magnetic patch (such as No. 1 little magnetic patch) for starting point, clockwise or numbered counter-clockwise, then the direction of magnetization from the 1st piece of little magnetic patch to every two pieces of n-th piece of little magnetic patch by clockwise or be rotated counterclockwise 360 °/n.
Said n block small magnet by sequence number clockwise or the bonding head and the tail of counterclockwise special gelatin be connected to form a close ring as magnetic field units.
Multiple magnetic field units (being set to m) is axially coaxially arranged on tube inner wall with special gelatin, and the spacing between adjacent two magnetic field units is l, the magnetic field body obtained by magnetic field units, and the helical pitch in magnetic field is mh+ (m-1) l.
Concrete, the medium and small magnetic patch of the present embodiment have employed Nd-Fe-Bo permanent magnet material, is of a size of internal diameter 69mm, external diameter 89mm, fan-shaped angle π/6, thickness 20mm.
Fig. 2 is the direction of magnetization schematic diagram of the little magnetic patch of magnetic field generation device of the present invention, and circumference around forming, has 12 kinds of direction of magnetizations by 12 pieces of little magnetic patch of permanent magnet.As shown in the figure, the direction of magnetization of No. 1 little magnetic patch be level to the right, the direction of magnetization rotates π/6 from No. 1 little magnetic patch clockwise successively to No. 12 little magnetic patch.
In each magnetic field units, 12 small magnets are connected to form a close ring with special gelatin head and the tail clockwise by sequence number, totally four groups of magnet unit in the present embodiment, as shown in Figure 1, i.e. and A1, A2, A3 and A4.Fig. 3 is the structural representation of the direction of magnetization of each little magnetic patch in each magnetic field units of magnetic field generation device embodiment one of the present invention.
As shown in Figure 1, four groups of magnet unit rotate 0 successively, pi/2, π, 3 pi/2s, and neighboring magnet units in the axial direction spacing is 20mm, and the magnetic field helical pitch of helical magnetic field body A is 140mm.
Above-mentioned magnetic field body is coaxially arranged on tube inner wall.
Fig. 4 is the magnetic flux density distribution map vertically of magnetic field generation device embodiment one of the present invention.As the B=1T of Nd-Fe-Bo permanent magnet material.Fig. 4 is the magnetic flux density distribution map vertically of magnetic field generation device embodiment one of the present invention, be y=0mm in figure, x=-50mm magnetic flux density distribution map vertically, wherein the amplitude of axial component Bz and radial component Br is all very large, the amplitude of azimuthal component Bt is also comparatively large, and magnetic field gradient is all larger.The amplitude of Bz can reach 100mT, and the amplitude of Br can reach 120mT, magnetic induction density B at any height all higher than 70mT.
Fig. 5 is one of magnetic line of force distribution map in magnetic field generation device embodiment one of the present invention, and Fig. 6 is magnetic line of force distribution map two in magnetic field generation device embodiment one of the present invention.Fig. 5 is the magnetic line of force distribution map of helical magnetic field body A on y=0mmxz cross section, and Fig. 6 is helical magnetic field body A magnetic line of force distribution map on x=0mm yz cross section.
Fig. 7 is the intensity profile figure of the magnetic flux density in magnetic field body cross section in magnetic field generation device embodiment one of the present invention, and the Distribution of Magnetic Field at middle comparatively homogeneous color table light staining center place is more even.Maximum magnetic induction can reach 131mT, and is not less than 34.7mT.
Periodically can repeat in the axial direction to put according to the structure shown in Fig. 1, such as, adopt A-1, A-2, A-3, A-4, A-1 ... order build crossing the enterprising windrow of oily passage.Make it be covered with easy wax deposition region at oil pipe, produce the helical magnetic field of spatial distribution, when oil in described oil pipe through described helical magnetic field, the physical property of crude oil changes, and reduces the viscosity of wax, reaches adhesion reducing and wax preventing effect fully.
Fig. 8 is the schematic diagram of magnetic field generation device embodiment two of the present invention, and as shown in the figure, the magnetic field generation device of the present embodiment comprises multiple little magnetic patch 1.Little magnetic patch 1 is arranged on tube inner wall according to certain pitch helical.
Concrete, little magnetic patch is fan-shaped permanent magnet, in the circumferential by polylith (being set to n block) little magnetic patch around forming, the total n kind direction of magnetization.With a certain little magnetic patch (such as No. 1 little magnetic patch) for starting point, clockwise or numbered counter-clockwise, then the direction of magnetization from the 1st piece of little magnetic patch to every two pieces of n-th piece of little magnetic patch by clockwise or be rotated counterclockwise 360 °/n.
The horizontal angle α (in radian) that adjacent two little magnetic patch stagger certain along counterclockwise or clockwise direction successively, the lift angle of the helical magnetic field of composition is made to be β (in radian), if the thickness of the annulus that little magnetic patch surrounds is h, nominal radius is R, then have α=arctan (h/ (β R)).
The magnetic field body unit formed by counterclockwise or clockwise little magnetic patch, the helical pitch in magnetic field is mnh+ (m-1) l.Neighboring magnet units is clockwise or be rotated counterclockwise certain angle θ (in radian), in order to obtain larger magnetic field gradient, and prioritizing selection θ=2 π/m.
In order to obtain stronger magnetic field, magnetic field body can be evenly arranged in the circumferential 1-4.
Two kinds of helical magnetic field body arrangements spatially all have " spiral " feature, all make the magnetic flux density amplitude on oily passage and gradient comparatively large, and are beneficial to and play wax control effect.
Again as shown in Figure 8, the present embodiment comprises 2 magnetic field units, is respectively B1, B2.Wherein B1 is that the little magnetic patch of two adjacent permanent magnets staggers certain horizontal angle π/6 along clockwise direction successively, and the thickness 20mm of the little magnetic patch that rises on axial height; B-2 is that the little magnetic patch of two adjacent permanent magnets staggers certain horizontal angle π/6 along clockwise direction successively, and the little magnetic patch thickness 20mm that declines on axial height.
As shown in Figure 8, two magnet unit B1 and B2 in helical magnetic field body B, take B1 as benchmark, B2 then rotates pi/2, and two magnet unit axial spacings are 20mm, and the magnetic field helical pitch of helical magnetic field body B is 500mm.Fig. 9 is the structural representation of the direction of magnetization of each little magnetic patch in each magnetic field units of magnetic field generation device embodiment two of the present invention.Above-mentioned magnetic field body is coaxially arranged on tube inner wall.
Figure 10 is the magnetic flux density distribution map vertically of magnetic field generation device embodiment two of the present invention.As the B=1T of Nd-Fe-Bo permanent magnet material, Figure 10 is x=0mm, y=-50mm magnetic flux density distribution vertically in the present embodiment helical magnetic field body B, and wherein the amplitude of radial component Br is very large, and close to 90mT, and the gradient of the magnetic-field component of all directions is all larger.
Figure 11 is one of magnetic line of force distribution map in magnetic field generation device embodiment two of the present invention, and Figure 12 is magnetic line of force distribution map two in magnetic field generation device embodiment two of the present invention.Figure 11 is the magnetic line of force distribution map of embodiment two helical magnetic field body on y=0mm xz cross section, and Figure 12 is the magnetic line of force distribution map in embodiment two helical magnetic field body on x=0mmyz cross section.
The magnetic flux density of helical magnetic field body center is all very large, and occasion oil circuit section radius being even greater than comparatively greatly to 20mm still has enough strong magnetic field, can carry out sufficient magnetic treatment to crude oil.
Figure 13 is the intensity profile figure of the magnetic flux density in magnetic field body cross section in magnetic field generation device embodiment two of the present invention, and the Distribution of Magnetic Field at middle comparatively homogeneous color table light staining center place is more even.Maximum magnetic induction can reach 90.4mT.
For embodiment two, comparatively embodiment one is lower generally for magnetic flux density, this is because on sustained height embodiment two helical magnetic field body in only have one piece of little magnetic patch in the circumferential, for the helical magnetic field body of embodiment one, then have 12 pieces.
Periodically can repeat in the axial direction to put according to the structure shown in Fig. 9, such as, adopt B-1, B-2, B-1 ... order build crossing the enterprising windrow of oily passage.Make it be covered with easy wax deposition region at oil pipe, produce the helical magnetic field of spatial distribution, when oil in described oil pipe through described helical magnetic field, the physical property of crude oil changes, and reduces the viscosity of wax, reaches adhesion reducing and wax preventing effect fully.
Magnetic field generation device of the present invention has the following advantages:
(1) the magnetic paraffin control structure based on magnetic evil spirit ring helical magnetic field of the present invention's proposition, the little magnetic patch direction of magnetization wherein adopts magnetic evil spirit ring structure, and obtained magnetic field units carries out better excellent magnetic treatment at the larger crude oil to process of the magnetic flux density of operation interval;
(2) the magnetic paraffin control structure based on magnetic evil spirit ring helical magnetic field of the present invention's proposition, the stray field of obtained magnetic field units is minimum, effectively make use of magnetic field;
(3) the magnetic paraffin control structure based on magnetic evil spirit ring helical magnetic field of the present invention's proposition, the little magnetic patch direction of magnetization wherein have employed magnetic evil spirit ring structure, uniformity of magnetic field in radial direction is high, and the size not by oil pipe cross section limit, and can allow the more crude oil of magnetic treatment in the unit interval.
(4) the magnetic paraffin control structure based on magnetic evil spirit ring helical magnetic field of the present invention's proposition, the rotating magnetic field body of particular design, can obtain axially larger magnetic field gradient.
These characteristics of the present invention and advantage, ensure that and adopt the magnetic paraffin control technology of apparatus of the present invention can efficiently pre-preventing oil pipe, wax deposition problem in oil well.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; the protection range be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a magnetic field generation device, is characterized in that, described magnetic field generation device comprises: multiple little magnetic patch;
The magnetic field units that described little magnetic patch order is arranged as close ring is arranged on tube inner wall; Or described little magnetic patch is arranged on tube inner wall according to certain pitch helical;
Described little magnetic patch produces the helical magnetic field of spatial distribution, when oil in described oil pipe through described helical magnetic field, the physical property of crude oil changes, and reduces the viscosity of wax.
2. device according to claim 1, is characterized in that, described magnetic field units is at least one.
3. device according to claim 1, is characterized in that, described little magnetic patch clockwise or arranged counterclockwise.
4. device according to claim 1, is characterized in that, described little magnetic patch is fan-shaped.
5. device according to claim 1, is characterized in that, is that bonding connection or machinery are fixing between described little magnetic patch.
6. device according to claim 1, is characterized in that, described little magnetic patch is permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014537.8A CN104563965A (en) | 2015-01-12 | 2015-01-12 | Magnetic field generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014537.8A CN104563965A (en) | 2015-01-12 | 2015-01-12 | Magnetic field generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104563965A true CN104563965A (en) | 2015-04-29 |
Family
ID=53080950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510014537.8A Pending CN104563965A (en) | 2015-01-12 | 2015-01-12 | Magnetic field generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104563965A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863546A (en) * | 2015-05-29 | 2015-08-26 | 山东鑫茂奥奈特复合固体润滑工程技术有限公司 | Permanent magnet ultrasonic paraffin control device |
| CN105507885A (en) * | 2015-12-02 | 2016-04-20 | 中国地质大学（武汉） | Permanent-magnet pipe nipple |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5454943A (en) * | 1991-11-01 | 1995-10-03 | Ashton; Thomas E. | Device for the magnetic treatment of fluids |
| CN2242371Y (en) * | 1995-10-27 | 1996-12-11 | 许启发 | Water-flowing rotary type magnetization valve |
| RU2198849C2 (en) * | 2001-04-10 | 2003-02-20 | ООО "НПП" Лантан-1" | Device for magnetic treatment of liquid |
| CN1920247A (en) * | 2006-09-30 | 2007-02-28 | 张国成 | Magneto-thermo wax-proofing apparatus for oil exploitation |
| CN101652499A (en) * | 2007-04-06 | 2010-02-17 | 国立大学法人东北大学 | Magnetic control sputtering device |
| CN102064664A (en) * | 2010-10-20 | 2011-05-18 | 上海天勃能源设备有限公司 | Magnetic particle fluid direct current motor |
| CN202531038U (en) * | 2012-04-05 | 2012-11-14 | 中国石油天然气股份有限公司 | Strong magnetic wax-proof wear-proof sucker rod |
| CN202667203U (en) * | 2012-07-12 | 2013-01-16 | 孙嘉麟 | Rare earth permanent magnet anti-wax scale prevention device |
| CN103234094A (en) * | 2013-05-02 | 2013-08-07 | 东营海星天钰石油技术开发有限公司 | Rare earth high-efficiency strong-magnetism anti-scaling device |
-
2015
- 2015-01-12 CN CN201510014537.8A patent/CN104563965A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5454943A (en) * | 1991-11-01 | 1995-10-03 | Ashton; Thomas E. | Device for the magnetic treatment of fluids |
| CN2242371Y (en) * | 1995-10-27 | 1996-12-11 | 许启发 | Water-flowing rotary type magnetization valve |
| RU2198849C2 (en) * | 2001-04-10 | 2003-02-20 | ООО "НПП" Лантан-1" | Device for magnetic treatment of liquid |
| CN1920247A (en) * | 2006-09-30 | 2007-02-28 | 张国成 | Magneto-thermo wax-proofing apparatus for oil exploitation |
| CN101652499A (en) * | 2007-04-06 | 2010-02-17 | 国立大学法人东北大学 | Magnetic control sputtering device |
| CN102064664A (en) * | 2010-10-20 | 2011-05-18 | 上海天勃能源设备有限公司 | Magnetic particle fluid direct current motor |
| CN202531038U (en) * | 2012-04-05 | 2012-11-14 | 中国石油天然气股份有限公司 | Strong magnetic wax-proof wear-proof sucker rod |
| CN202667203U (en) * | 2012-07-12 | 2013-01-16 | 孙嘉麟 | Rare earth permanent magnet anti-wax scale prevention device |
| CN103234094A (en) * | 2013-05-02 | 2013-08-07 | 东营海星天钰石油技术开发有限公司 | Rare earth high-efficiency strong-magnetism anti-scaling device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863546A (en) * | 2015-05-29 | 2015-08-26 | 山东鑫茂奥奈特复合固体润滑工程技术有限公司 | Permanent magnet ultrasonic paraffin control device |
| CN105507885A (en) * | 2015-12-02 | 2016-04-20 | 中国地质大学（武汉） | Permanent-magnet pipe nipple |
| CN105507885B (en) * | 2015-12-02 | 2019-04-02 | 中国地质大学（武汉） | A kind of permanent magnetism short joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104563965A (en) | Magnetic field generating device | |
| CN102360717B (en) | Liquid magnetizer with variant Halbach permanent magnet array | |
| CN106884618A (en) | A kind of rotary propeller type synchronous generator for installing piezoelectric patches and vibration-repressing device and method | |
| CN102182355A (en) | Magnetic lockset | |
| CN102933308B (en) | The apparatus and method be separated for making fluid magnetic | |
| CN105134200A (en) | Azimuthal nuclear magnetic resonance logging instrument and probe thereof | |
| CN101482158B (en) | Shearing valve type magneto-rheological fluid damping vibration absorber | |
| CN101281239B (en) | Permanent magnetic body used for magnetic resonance imaging and manufacturing method thereof | |
| CN103234094B (en) | The strong magnetism antiscaling unit of high efficiency rare-earth | |
| CN102360699B (en) | Compound type magnetic subassembly of permanent magnet | |
| CN105448455B (en) | Permanent magnetism high-speed electro-magnet | |
| CN104563906B (en) | Combined sucker rod centralizer | |
| JIA | Several important issues about current oil and gas exploration in China | |
| CN1862718A (en) | Bipolar permanent magnet | |
| CN203496126U (en) | Magnetic water stirring device for concrete | |
| WO2014026444A1 (en) | High-field-strength magnetic roller and magnetic separator | |
| CN1866700B (en) | Cylindrical permanent magnetic system | |
| CN103112933B (en) | Combined-type spiral liquid magnetizer | |
| CN101794656B (en) | Magnetic radiation ring | |
| CN210715037U (en) | Oil-well pump with magnetism wax control scale control function | |
| CN102029224B (en) | Magnetic system structure for cylindrical permanent magnetic separator | |
| CN1884791B (en) | Permanent magnetic casing type adhesion reducing and wax preventing device for down-hole oil production | |
| CN202332466U (en) | Compound type permanent magnet magnetic components | |
| CN205570303U (en) | Fuel molecule refines combustion -supporting | |
| CN203715351U (en) | Internal magnetic treater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |
|
| RJ01 | Rejection of invention patent application after publication |