CN202731849U - Wear-resisting permanent magnet paraffin controller for sucker rod - Google Patents
Wear-resisting permanent magnet paraffin controller for sucker rod Download PDFInfo
- Publication number
- CN202731849U CN202731849U CN 201220317982 CN201220317982U CN202731849U CN 202731849 U CN202731849 U CN 202731849U CN 201220317982 CN201220317982 CN 201220317982 CN 201220317982 U CN201220317982 U CN 201220317982U CN 202731849 U CN202731849 U CN 202731849U
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- permanent magnet
- wear
- paraffin
- resisting
- controller
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Abstract
The utility model relates to an oil exploitation process and discloses a wear-resisting permanent magnet paraffin controller for a sucker rod. The wear-resisting permanent magnet paraffin controller is provided with a permanent magnet sleeve, wherein a mandrel is arranged inside the permanent magnet sleeve; a plurality of annular magnetic blocks A and magnetic blocks B are alternatively arranged on the mandrel in an axial direction; butt joints are arranged at the two ends of the permanent magnet sleeve; and the two ends of each of the butt joints are in threaded connection with self-rotation centralizers; the wear-resisting permanent magnet paraffin controller is characterized in that wear-resisting rings are additionally arranged between the butt joints and the permanent magnet sleeve; the wear-resisting rings are sleeved on the mandrel; the outer end surface of each wear-resisting ring is in the form of a circular arc; and the outer diameter of each wear-resisting ring is bigger than that of the permanent magnet sleeve. The wear-resisting permanent magnet paraffin controller solves the problems that the oil cannot be normally exploited, a paraffin control effect of the permanent magnet paraffin controller is affected and the like caused by the factor that inner magnet blocks drop into the oil sucker tube to result in well blocking because the wall of the permanent magnet sleeve directly contacts and rubs with the wall of an oil sucker tube, and the permanent magnet sleeve is grinded through due to easy grinding of the centralizer of the traditional permanent magnet paraffin controller for the sucker rod; the wear-resisting permanent magnet paraffin controller is mainly used for a paraffin controlling and viscosity reducing process for the extraction of oil.
Description
(i) technical field: the utility model relates to process for petroleum recovery, especially a kind of wear-resisting type sucker rod permanent-magnet anti-paraffin unit.
(ii) background technology: the general crude oil content of wax is high, viscosity is high, poor fluidity, usually to oil producing operation, has brought very large difficulty, has the people to invent specially the sucker rod permanent-magnet anti-paraffin unit for this reason.Because current oil field major part is the oblique pull well; and most in exploitation mid-term and late period; load very large; the centralizer at sucker rod permanent-magnet anti-paraffin unit two ends is not in the situation that will be polished to pump detection period; with regard to causing, protect the first line of defence of permanent-magnet anti-paraffin unit to be broken like this; the permanent magnetism sleeve pipe directly contacts and rubs with the tube wall of oil pick-up tube; when serious, the permanent magnetism sleeve pipe of permanent-magnet anti-paraffin unit can be worn and cause inner magnet piece to fall into oil pick-up tube; cause the resistance well; have a strong impact on the carrying out of oil exploitation work, caused heavy economic losses.Therefore, designing a kind of sucker rod permanent-magnet anti-paraffin unit that can address the above problem well extremely is necessary.
(iii) summary of the invention: the purpose of this utility model be exactly the centralizer that will solve traditional sucker rod permanent-magnet anti-paraffin unit easily polish cause the permanent magnetism sleeve pipe directly to contact with the tube wall of oil pick-up tube and rub, the permanent magnetism sleeve pipe is worn through and causes the inner magnet iron block to fall into that oil pick-up tube causes the resistance well and normal recover petroleum and affect the problems such as wax control result of permanent-magnet anti-paraffin unit, and a kind of wear-resisting type sucker rod permanent-magnet anti-paraffin unit is provided.
Concrete scheme of the present utility model is: for traditional sucker rod permanent-magnet anti-paraffin unit, improved, it has the permanent magnetism sleeve pipe, and a mandrel is housed in the permanent magnetism sleeve pipe, on mandrel vertically interlaced arrangement magnet piece A and the magnet piece B of some annulars are arranged; Butt joint is equipped with at the two ends of permanent magnetism sleeve pipe, the two ends of the butt joint rotation type centralizer that has been threaded, it is characterized in that: between described butt joint and permanent magnetism sleeve pipe, add wear ring, wear ring is sleeved on mandrel, the outer face of wear ring is circular-arc, and the external diameter of wear ring is greater than the external diameter of permanent magnetism sleeve pipe.
The annular magnetic iron block that the A of magnet piece described in the utility model is monoblock, magnet piece A is sleeved on mandrel.
The B of magnet piece described in the utility model is surrounded by some fan-shaped magnet pieces, and magnet piece B is sleeved on mandrel.
Difference in height h between the top, outer face of wear ring described in the utility model and the top, outer face of permanent magnetism sleeve pipe is 5mm.
The utility model is simple in structure, easy to use, by the two ends at the permanent magnetism sleeve pipe, installs wear ring additional, guarantees that centralizer is polished rear permanent-magnet anti-paraffin unit not compromised.After even centralizer is polished; the permanent magnetism sleeve pipe can directly not contact with oil pick-up tube yet; guaranteed that permanent-magnet anti-paraffin unit still can work; wherein wear ring adopts the alloy steel of the various metals castings such as chromium, molybdenum; there is stronger corrosion resistance and higher hardness, can protect for a long time permanent-magnet anti-paraffin unit.
(iv) accompanying drawing explanation:
Fig. 1 is front view of the present utility model;
Fig. 2 is the I place zoomed-in view of Fig. 1;
Fig. 3 is the A-A enlarged section view of Fig. 2;
Fig. 4 is the B-B enlarged section view of Fig. 2.
In figure: 1-rotation type centralizer, 2-butt joint, 3-wear ring, 4-mandrel, 5-permanent magnetism sleeve pipe, 6-magnet piece B, 7-magnet piece A.
(v) the specific embodiment:
Referring to Fig. 1,2,3,4, the utlity model has permanent magnetism sleeve pipe 5, a mandrel 4 is housed in permanent magnetism sleeve pipe 5, on mandrel 4 vertically interlaced arrangement the magnet piece A7 of six annulars and the magnet piece B6 of five annulars are arranged; Butt joint 2 is equipped with at the two ends of permanent magnetism sleeve pipe 5, the two ends of the butt joint 2 rotation type centralizer 1 that has been threaded, particularly: between described butt joint 2 and permanent magnetism sleeve pipe 5, add wear ring 3, wear ring 3 is sleeved on mandrel 4, the outer face of wear ring 3 is circular-arc, and the external diameter of wear ring 3 is greater than the external diameter of permanent magnetism sleeve pipe 5.
The annular magnetic iron block that the A7 of magnet piece described in the present embodiment is monoblock, magnet piece A7 is sleeved on mandrel 4.
The B6 of magnet piece described in the present embodiment is surrounded by six fan-shaped magnet pieces, and magnet piece B6 is sleeved on mandrel 4.
Difference in height h between the top, outer face of wear ring described in the present embodiment 3 and the top, outer face of permanent magnetism sleeve pipe 5 is 5mm.
Claims (4)
1. a wear-resisting type sucker rod permanent-magnet anti-paraffin unit, have the permanent magnetism sleeve pipe, and a mandrel is housed in the permanent magnetism sleeve pipe, on mandrel vertically interlaced arrangement magnet piece A and the magnet piece B of some annulars are arranged; Butt joint is equipped with at the two ends of permanent magnetism sleeve pipe, the two ends of the butt joint rotation type centralizer that has been threaded, it is characterized in that: between described butt joint and permanent magnetism sleeve pipe, add wear ring, wear ring is sleeved on mandrel, the outer face of wear ring is circular-arc, and the external diameter of wear ring is greater than the external diameter of permanent magnetism sleeve pipe.
2. a kind of wear-resisting type sucker rod permanent-magnet anti-paraffin unit according to claim 1, it is characterized in that: the annular magnetic iron block that described magnet piece A is monoblock, magnet piece A is sleeved on mandrel.
3. a kind of wear-resisting type sucker rod permanent-magnet anti-paraffin unit according to claim 1, it is characterized in that: described magnet piece B is surrounded by some fan-shaped magnet pieces, and magnet piece B is sleeved on mandrel.
4. a kind of wear-resisting type sucker rod permanent-magnet anti-paraffin unit according to claim 1, it is characterized in that: the difference in height h between the top, outer face of described wear ring and the top, outer face of permanent magnetism sleeve pipe is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220317982 CN202731849U (en) | 2012-07-03 | 2012-07-03 | Wear-resisting permanent magnet paraffin controller for sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220317982 CN202731849U (en) | 2012-07-03 | 2012-07-03 | Wear-resisting permanent magnet paraffin controller for sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202731849U true CN202731849U (en) | 2013-02-13 |
Family
ID=47657561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220317982 Expired - Fee Related CN202731849U (en) | 2012-07-03 | 2012-07-03 | Wear-resisting permanent magnet paraffin controller for sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202731849U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499363A (en) * | 2016-11-28 | 2017-03-15 | 西南石油大学 | A kind of spontaneous electrical heating paraffin removal tool of high-pressure gas well and its method |
-
2012
- 2012-07-03 CN CN 201220317982 patent/CN202731849U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499363A (en) * | 2016-11-28 | 2017-03-15 | 西南石油大学 | A kind of spontaneous electrical heating paraffin removal tool of high-pressure gas well and its method |
| CN106499363B (en) * | 2016-11-28 | 2018-10-26 | 西南石油大学 | A kind of spontaneous electrical heating paraffin removal tool of high-pressure gas well and its method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20170703 |