CN2565977Y - Tubular high magnetic field paraffin control device - Google Patents
Tubular high magnetic field paraffin control device Download PDFInfo
- Publication number
- CN2565977Y CN2565977Y CN 02269106 CN02269106U CN2565977Y CN 2565977 Y CN2565977 Y CN 2565977Y CN 02269106 CN02269106 CN 02269106 CN 02269106 U CN02269106 U CN 02269106U CN 2565977 Y CN2565977 Y CN 2565977Y
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- CN
- China
- Prior art keywords
- control device
- permanent magnet
- joint
- highfield
- tubular type
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a magnetic paraffin control device used in petroleum production wells, which is composed of a pair of joints, a housing, a permanent magnet and a guide ring, wherein protecting jackets are arranged on the permanent magnet and the inner wall of the guide ring, and the ports of the protecting jackets turn outward and fold, and are positioned between the guide ring and the joints. By using the utility model, the protecting jacket isolates the contact between the permanent magnet and chemical substances, and the axially or radially movement of the protective jacket is avoided, thus, the omnibearing tight bonding of the protective jacket and the permanent magnet is ensured, and the service life of the tubular high magnetic field paraffin control device is improved.
Description
Technical field
The utility model relates to a kind of device that prevents or limit paraffin or similar substance deposition, in particular for the magnetic paraffin control device in the petroleum well.
Background technology
The magnetic paraffin control device is made up of pair of joint, housing, permanent magnet and lead ring usually, its center tap and the housing formation pipeline that is threaded, and permanent magnet and lead ring are on the inner walls between two joints, and it is placed in the oil well during use.The magnetic paraffin control device of this structure, permanent magnet directly contacts the chemical substance in the oil well, is corroded easily, and the magnetic paraffin control device has just lost the effect of wax control so.For prolonging the application life of magnetic paraffin control device, the requirement to permanent magnet anti-corrosion protection technology has been proposed.01209822 utility model patent of on December 19th, 2002 bulletin discloses a kind of " producing well with high permanent-magnet waxproof device " technical scheme, and it is that a cylindrical shape protective cover is set on the inwall of permanent magnet, avoids permanent magnet to contact with the direct of chemical substance.But the magnetic paraffin control device of this structure, the adhesive effect of protective cover and permanent magnet is often not good enough, and protective cover is easy to generate axially or radially string is moving.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defective, and a kind of tubular type highfield wax control device that increases the service life is provided.
The utility model is to realize like this; it is made up of pair of joint, housing, permanent magnet and lead ring; its center tap and the housing formation pipeline that is threaded; permanent magnet and lead ring are on the inner walls between two joints; on the inwall of permanent magnet and lead ring protective sleeve is set, its port outwards turns down between lead ring and joint.
The cylindrical portion of permanent magnet and protective sleeve closely bonds, and there is clip at the two ends of protective sleeve, and the clip flange is bonding by lead ring and joint inner face, compress; The clip five equilibrium at protective sleeve two ends is uniform, and clip length is identical.
On the end face of joint sealing device is set, concrete structure is: the joint inner face has a step, at step end face sealing ring is set; The ring-type convex cone is set on the joint step end face, and Dui Ying sealing ring is provided with the spill annular groove therewith; The convex cone angle is about 60 °, and the spill annular groove angle of sealing ring is about 50 °.
Adopt the utility model, on the one hand, main body is that the protective sleeve of tubular has completely cut off contacting of permanent magnet and chemical substance; On the other hand, the port of protective sleeve is fixed between joint and the lead ring, has avoided protective sleeve to lean on axially or radially going here and there of may occurring to move because of the inclined to one side of sucker rod.Thereby having guaranteed that protective sleeve and permanent magnet are omnibearing closely bonds, and has reached to improve the magnetic paraffin control device purpose in application life.In addition, sealing device is set, thereby has improved the sealing effectiveness of wax control device, also help the prolongation in application life at the joint end face.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the plane outspread drawing of protective sleeve in the utility model.
The specific embodiment
Referring to Fig. 1; it is made up of box joint 1, male joint 7, housing 2, lead ring 3,6 and permanent magnet 4; wherein two joints 1,7 and housing 2 are respectively by the formation pipeline that is threaded; permanent magnet 4 is the loop configuration bodies that become by some permanent magnetic iron block permutation and combination; it is bonded on housing 2 inwalls; the two ends of permanent magnet 4 are lead rings 3,6, on the inwall of permanent magnet 4 and lead ring and between lead ring and the joint end face protective sleeve 5 are being set, and the expanded view of protective sleeve 5 as shown in Figure 2.
Being provided with of protective sleeve 5 is specific as follows: at first the expansion part with protective sleeve carries out clip, and clip A wants five equilibrium uniform, and the clip length requirement is identical; Be rolled into tubular by the upper and lower side clip then; bonding plane cleans up; behind the brushing bonding agent; put into the permanent magnet position, under the effect of special tool expansion force, make permanent magnet protective sleeve external surface and permanent magnet inner surface bonding firmly; behind the some hrs; with permanent magnet protective sleeve two ends clip flange (special tool operation), make it bonding again, press between lead ring and joint inner face.Take out special tool at last.
As the selection of protective sleeve material, not only to consider characteristics such as acidproof, alkaline-resisting, oil resistant, heatproof, but also will consider non magnetic and plasticity.
In order to strengthen sealing effectiveness of the present utility model, on the end face of joint, sealing device is set, concrete structure is: the joint inner face has a step, and the ring-type convex cone is set on the joint step end face, and the convex cone angle is about 60 °; At step end face sealing ring 8,9 is set, the corresponding annular convex cone of sealing ring place is provided with the spill annular groove, and the spill annular groove angle of sealing ring is about 50 °.Like this, after joint and protective sleeve compressed, sealing ring was squeezed in the step place of joint end face tightly, and the spill annular groove of the annular convex cone of end face and sealing ring is meshing with each other, and had guaranteed sealing effectiveness.
Claims (7)
1, a kind of tubular type highfield wax control device; it is made up of pair of joint, housing, permanent magnet and lead ring; its center tap and the housing formation pipeline that is threaded; permanent magnet and lead ring are on the inner walls between two joints; it is characterized in that on the inwall of permanent magnet and lead ring protective sleeve being set, its port outwards turns down between lead ring and joint.
2, tubular type according to claim 1 highfield wax control device is characterized in that the cylindrical portion of permanent magnet and protective sleeve closely bonds, and there is clip at the two ends of protective sleeve, and the clip flange is bonding by lead ring and joint inner face, compress.
3, tubular type according to claim 2 highfield wax control device it is characterized in that the clip five equilibrium at protective sleeve two ends is uniform, and clip length is identical.
4, according to claim 1 or 3 described tubular type highfield wax control devices, it is characterized in that on the end face of joint, sealing device being set.
5, tubular type according to claim 4 highfield wax control device is characterized in that the joint inner face has a step, is provided with sealing ring at step end face.
6, tubular type according to claim 5 highfield wax control device is characterized in that the ring-type convex cone is set on the joint step end face, and Dui Ying sealing ring is provided with the spill annular groove therewith.
7, tubular type according to claim 6 highfield wax control device is characterized in that the convex cone angle is about 60 °, and the spill annular groove angle of sealing ring is about 50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02269106 CN2565977Y (en) | 2002-08-20 | 2002-08-20 | Tubular high magnetic field paraffin control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02269106 CN2565977Y (en) | 2002-08-20 | 2002-08-20 | Tubular high magnetic field paraffin control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2565977Y true CN2565977Y (en) | 2003-08-13 |
Family
ID=33734408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02269106 Expired - Fee Related CN2565977Y (en) | 2002-08-20 | 2002-08-20 | Tubular high magnetic field paraffin control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2565977Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225361A (en) * | 2011-04-19 | 2011-10-26 | 宁波市镇海西门专利技术开发有限公司 | Magnetic filter element |
-
2002
- 2002-08-20 CN CN 02269106 patent/CN2565977Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225361A (en) * | 2011-04-19 | 2011-10-26 | 宁波市镇海西门专利技术开发有限公司 | Magnetic filter element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030813 Termination date: 20100820 |