CN1041202A - Detachable permanent magnetic waxproof device for oil well - Google Patents
Detachable permanent magnetic waxproof device for oil well Download PDFInfo
- Publication number
- CN1041202A CN1041202A CN 88105125 CN88105125A CN1041202A CN 1041202 A CN1041202 A CN 1041202A CN 88105125 CN88105125 CN 88105125 CN 88105125 A CN88105125 A CN 88105125A CN 1041202 A CN1041202 A CN 1041202A
- Authority
- CN
- China
- Prior art keywords
- waxproof
- internal lining
- lining pipe
- oil well
- permanent magnetic
- 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.)
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 25
- 239000003129 oil well Substances 0.000 title claims description 8
- 230000005307 ferromagnetism Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 239000010779 crude oil Substances 0.000 abstract description 10
- 239000003921 oil Substances 0.000 abstract description 10
- 239000012188 paraffin wax Substances 0.000 abstract description 7
- 230000008021 deposition Effects 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 6
- 238000010923 batch production Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 229910001172 neodymium magnet Inorganic materials 0.000 description 2
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
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- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
It is a kind of detachable that the invention belongs to, and use down-hole, fuel feeding field, and the crude oil in the pipeline road is carried out magnetic treatment, thus reduce or prevent to be exploited and the crude oil carried in the deposition of paraffin on tube wall.Because this device use permanent magnet carries out magnetic treatment to crude oil, thereby consumed power not.The component of whole device are all detachable, be convenient to make various standard components, can replace mutually, all brought convenience and be applicable to batch process for production, test, detection, maintenance etc., with existing various device for magnetic treatment for fluid, particularly the device that crude oil is carried out magnetic treatment is compared, and it is the permanent-magnet waxproof device that use a kind of comparatively desirable down-hole, oil field.
Description
The invention belong to a kind of that use in the down-hole, oil field, the crude oil of exploitation is carried out magnetic treatment, dismountable device, in order to reduce or to prevent the deposition of paraffin on the oil transportation tube wall in the crude oil.
When crude oil flows in the oil well pipeline, usually there is paraffin to be deposited on the tube wall gradually, thereby causes the crude oil flow resistance to increase, final blocking pipeline.Round paraffin how to remove deposition, people have done a large amount of research and have explored, usually adopt method that heat is washed or machinery to remove the paraffin of deposition tube wall, but it is too high to do cost like this, through further discovering under certain conditions, adopt magnetic field device that crude oil is handled and to reduce or to prevent the deposition of paraffin on tube wall, industrial, come handling of fluids to have very long history with magnetic field, as can reduce or prevent the harm of incrustation scale with the magnetic field treated industrial water use, can improve its efficiency of combustion with magnetic field treated fuel oil, reduce pollution etc., developed the device of many magnetic field treated fluids with the method for the magnetic field treated fluid people that adapt, more representational in these devices have: Chinese patent CN 86202462, CN 86209600 U.S. Pat 2652925, US 3228878, US 3349354, US 3614691, US 4188296, US 4265755, US 4372852, US 4564448 US 4605498, US 4707255 or the like, in the above-mentioned patented technology device of enumerating, U.S. Pat 3228878 and US 4564448 devices can be used for handling crude oil, it can reduce the deposition of paraffin on tube wall, yet above-mentioned all these devices of stating, because their structure, connecting mode, the restriction of the each side conditions such as intensity that the size of selecting for use and the raw material of use bear, make it can not satisfy the use of oilfield downhole operation, the invention is exactly the deficiency that has device for magnetic treatment for fluid for overcoming, thereby the permanent-magnet waxproof device of seeking a kind of rational oilfield downhole operation use produces.
The technology contents of the invention is: this device is made up of joint (1), (6) and magnetizable body, each joint is divided into inner end and outer end, and all has screw thread, the inner end refers to and the device link that the outer end refers to and the oil pipe link, exactly oil pipe being linked up with magnetizable body of the effect of joint, said inner end connects with magnetizable body, said outer end, promptly the part of protruding as shown in the figure connects with the tubing round thread interlock.Magnetizable body comprises: several permanent magnets (2), ferromagnetism inner sleeve (3), nonferromagnetic internal lining pipe (4) and ferromagnetism outer tube (5), their structure and connecting mode are: permanent magnet is embedded between internal lining pipe (4) and the inner sleeve, inner sleeve relies on the effect of magnetic, be adsorbed on the permanent magnet, be with outer tube again in the outside of inner sleeve, outer tube and internal lining pipe all are threaded.Same, the inside and outside surface of joint inner end also is threaded approximately, the screw thread of its inner surface connects with the internal lining pipe threaded engagement, the screw thread of external surface connect with the threaded engagement of outer tube point out emphatically be, between outer tube and the inner sleeve certain clearance should be arranged, as shown in the figure, connect and dismantle to guarantee that outer tube and joint can rotate.
Permanent magnet in this device can be processed tile shape, and its inlaying between nonferromagnetic internal lining pipe and ferromagnetism inner sleeve can have three kinds of modes.One, internal lining pipe can be made fluted body as shown in accompanying drawing 1, but in watt shape permanent magnet embedded groove, they are two years old, internal lining pipe can be made as shown in Figure 2 common tubular type, a watt shape permanent magnet is embedded between internal lining pipe and the inner sleeve, between per two blocks of watt shape permanent magnets of arranging vertically, be separated with nonferromagnetic watt shape fixed block (7), fixed block has two effects, the one, every magnetic, the 2nd, fixed permanent magnet, its three, for strengthening the magnetization effect of this device, on internal lining pipe, can process several slotted eyes, on slotted eyes, can stud with ferrimagnet (9) as magnetic pole, as shown in Figure 3, in the middle of per two pieces watts of shape permanent magnets, be separated with nonferromagnetic watt shape fixed block, make its common embedding between internal lining pipe and the inner sleeve, second and the 3 two mode in tile-shaped permanent magnet, should be equipped with a watt shape spacing block (8) between inner sleeve and the joint.
The structure distribution of watt shape permanent magnet in this device be actually in two directions promptly along axially and circumferencial direction, the size of its distance can be decided according to the actual requirements.
It should be noted, this device is when practical set, the inner surface screw thread that do not have in said joint (6) inner end connects with the internal lining pipe threaded engagement, do like this and can bring convenience to installation, whole load is all born on outer tube (5) in the time of can making this device busy again, and an internal lining pipe and a watt shape permanent magnet do not bear any load.
This device is with existing various fluid magnetics, and particularly the oil transportation magnetizing assembly is compared, and has convenient disassembly, and it is big to bear load, advantage such as magnetic structure is reasonable.
Accompanying drawing 1, accompanying drawing 2, accompanying drawing 3 are the structural representation of the invention, and (1), (6) are joints; (2) be a watt shape permanent magnet; (3) be the ferromagnetism inner sleeve; (4) be the nonferromagnetic internal lining pipe; (5) be the ferromagnetism outer tube; (7) be nonferromagnetic watt shape fixed block; (8) be a watt shape spacing block, (9) are ferrimagnets.
Give the invention an embodiment below.
Joint in the device (1) has and oil pipe, internal lining pipe and the joining screw thread of outer tube, and (6) have and oil pipe and the joining screw thread of outer tube, and all available structural alloy steel is manufactured the strength limit σ of this structural alloy steel
bValue should be at 60kg/mm
2～110kg/mm
2Between; Tile-shaped spacing block (8) is made by nonferromugnetic material, and its effect is that joint and permanent magnet and inner sleeve are separated; Internal lining pipe (4) is made by nonferromugnetic material, and its thickness can be between 0.5～5mm; Tile-shaped fixed block (7) is made by nonferromugnetic material; Inner sleeve (3) is made by ferrimagnet, and its thickness can be between 0.3～2mm; Tile-shaped permanent magnet (2) can be made by permanent-magnet materials such as neodymium iron boron or SmCo gold, and its size and magnetizing direction can be decided by actual needs.With becoming, its thickness is 4～14mm to outer tube (7) by carbon steel, and there is the screw thread that connects with joint (1) and (6) at its two ends, and (5) and (1), (6) are when connecting, and screw thread should be added with the filler that seals usefulness or scribble to seal and paint.Integral body can be carried 10～60 tons pulling force after whole device assembled, and can anti-50～300kg/cm
2Pressure, when whole device is subjected to stretching, the load pass to outer tube by joint.Like this, what in fact bear pulling force is outer tube, and the magnetic field intensity that internal lining pipe and inner sleeve all do not bear in the pulling force internal lining pipe can reach 10MT～50MT, and whole device can worked below 150 ℃, and the oil that is magnetized passes through in internal lining pipe.
Because the invention adopts neodymium iron boron or samarium-cobalt alloy to set up permanent-magnetic field, therefore need not use power supply. The parts of whole device are all detachable, be convenient to make standard component, replace mutually, the permanent magnet of particularly selecting can carry out different arrangements according to actual needs, make up, can also change shape and the magnetizing direction of magnet, these have brought convenience all for production, test, detection, maintenance etc., and be suitable for batch production, so it is the permanent-magnet waxproof device that a kind of comparatively ideal oil field well uses.
Claims (5)
1, a kind of permanent magnetic waxproof device for oil well is characterized in that it all has the joint [1], [6] of screw thread by inner end, outer end and is with the magnetizable body that is inlaid with some blocks of permanent magnets [2] between the ferromagnetism inner sleeve [3] of ferromagnetism outer tube [5] in nonferromagnetic internal lining pipe [4] and outside to form; Joint outer end screw thread connects with the tubing round thread interlock, and its inner screw thread connects with the outer tube threaded engagement with internal lining pipe, between outer tube and the inner sleeve certain clearance should be arranged.
2,, it is characterized in that said permanent magnet should be a watt shape according to the described permanent magnetic waxproof device for oil well of claim 1.
3, according to claim 1,2 described permanent magnetic waxproof device for oil well, it is characterized in that said nonferromagnetic internal lining pipe can be made into fluted body, but in the permanent magnet embedded groove.
4, according to claim 1,2 described permanent magnetic waxproof device for oil well, it is characterized in that said internal lining pipe can be made into common tubular type, per two arrangements vertically, is separated with nonferromagnetic watt shape fixed block (7) in the middle of the permanent magnet, can be embedded in jointly between internal lining pipe and the inner sleeve.
5, according to claim 1,2 described permanent magnetic waxproof device for oil well, it is characterized in that said internal lining pipe can process some slotted eyes, slotted eyes studs with ferrimagnet (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105125 CN1012627B (en) | 1988-09-13 | 1988-09-13 | Detachable permanent magnetic waxproof device for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105125 CN1012627B (en) | 1988-09-13 | 1988-09-13 | Detachable permanent magnetic waxproof device for oil well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1041202A true CN1041202A (en) | 1990-04-11 |
| CN1012627B CN1012627B (en) | 1991-05-15 |
Family
ID=4833353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88105125 Expired CN1012627B (en) | 1988-09-13 | 1988-09-13 | Detachable permanent magnetic waxproof device for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1012627B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458139A (en) * | 2018-12-29 | 2019-03-12 | 孙绍武 | A kind of oil extraction oil well oil pipe |
| CN115898333A (en) * | 2023-01-10 | 2023-04-04 | 陕西鼎和源瑞环境工程有限公司 | Superstrong viscosity reduction paraffin control increases oily ware |
-
1988
- 1988-09-13 CN CN 88105125 patent/CN1012627B/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458139A (en) * | 2018-12-29 | 2019-03-12 | 孙绍武 | A kind of oil extraction oil well oil pipe |
| CN109458139B (en) * | 2018-12-29 | 2020-04-17 | 东营市东达机械制造有限责任公司 | Oil pipe for crude oil extraction well |
| CN115898333A (en) * | 2023-01-10 | 2023-04-04 | 陕西鼎和源瑞环境工程有限公司 | Superstrong viscosity reduction paraffin control increases oily ware |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1012627B (en) | 1991-05-15 |
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