CN205089276U - Packer packing element - Google Patents
Packer packing element Download PDFInfo
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- CN205089276U CN205089276U CN201520870527.XU CN201520870527U CN205089276U CN 205089276 U CN205089276 U CN 205089276U CN 201520870527 U CN201520870527 U CN 201520870527U CN 205089276 U CN205089276 U CN 205089276U
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- packing element
- shoulder
- ring
- element matrix
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Abstract
Packer packing element prevents shoulder ring suddenly, its characterized in that including the packing element base member with through vulcanize to connect or bond at packing element base member both ends prevent the shoulder suddenly the ring for the split type structure, prevent the shoulder suddenly the face of being connected of ring and packing element base member be the circular conical surface, prevent the shoulder suddenly the material hardness of ring be greater than the material hardness of packing element base member, prevent that the abrupt external diameter that encircles of shoulder is a bit larger tham the external diameter of packing element base member. The utility model provides a packer packing element can effectively prevent sizing material protrusion, long service life, dismantlement convenience and workable.
Description
Technical field
The utility model relates to a kind of oil field well oil tool, particularly a kind of packing element.
Background technology
Packer is a kind of key tool that oil field well recovers the oil, be widely used in the several work object needs such as oil field dispensing, separate zone stimulation, oil production by layer, mechanical pipe water blockoff, in petroleum exploration & development, the use of packer is almost throughout its whole manufacturing process, packing element is as the chief component of packer, its quality directly affects the normal result of use of packer, application life etc.
Packer is contained between sleeve pipe and central tube, and when applying axial load to packing element, packing element radial direction produces large deformation; contact is produced between packing element and sleeve pipe; control production fluid, protective casing, so packing element is the core component of packer.Existing packing element, mainly contains following several structure:
Without metal protector structure: packing element is formed by single Polymer materialspreparation, packing element shoulder generally adopts the structure of band chamfering, is certain deformation space reserved in packing element extrusion process, reduces sizing material extrusion capacity.
Adopt shoulder soft metal operator guards: soft metal operator guards is monolithic, and metal is combined by forms such as bonding or sulfurations with packing element, and metal hardness is greater than rubber material hardness.When packing element bears axial load, metal protector is out of shape, and prevents sizing material from flowing out along casing annulus.
Adopt shoulder embedded with spiral spring structure: round screw thread spring is embedded in packing element inside, and sulfuration forms together with packing element; The type structure reduces the concentrated damage degree that packing element internal stress produces, and improves pressure-bearing and the non-deformability of packing element.
The shortcoming of above form of structure packing element is:
1) without metal protector structure: product is out of shape after bearing axial load; shoulder sizing material is easily outstanding along gap between tool of compression and sleeve pipe, and cause contact to decline, sealing performance reduces; cannot ensure that packing element is on active service for a long time under high temperature and high pressure environment, packing element is short for application life.
2) shoulder soft metal operator guards is adopted: can protrude along sleeve pipe direction by effectively anti-ending shoulder sizing material after adopting the operator guards distortion of monolithic soft metal, but cannot resilience after the distortion of all-in-one-piece soft metal operator guards, cause dismounting difficulty.
3) shoulder embedded with spiral spring structure is adopted: moulding process difficulty is comparatively large, and manufacturing cost is high; Shoulder sizing material is easily outstanding along gap between tool of compression and sleeve pipe, and cause contact to decline, sealing performance reduces, and cannot ensure that packing element is on active service for a long time under high temperature and high pressure environment, packing element is short for application life.
Utility model content
The utility model provides a kind of effectively can prevent sizing material protrusion, long service life, convenient disassembly and the packing element of easily processing.
For achieving the above object, the technical scheme of employing of the present utility model is: packing element, comprise packing element matrix to be connected with by sulfuration or the anti-shoulder that is bonded in packing element matrix two ends is dashed forward ring, it is characterized in that described anti-shoulder ring of dashing forward is split-type structure, the dash forward joint face of ring and packing element matrix of anti-shoulder is taper seat, the dash forward material hardness of ring of anti-shoulder is greater than the material hardness of packing element matrix, and the dash forward external diameter of ring of anti-shoulder is a bit larger tham the external diameter of packing element matrix.
Further, the anti-shoulder at described packing element matrix two ends ring of dashing forward is fFour piece type structure, the pintongs vertically alignment that the anti-shoulder that the anti-shoulder of packing element matrix upper end dashes forward pintongs in ring and packing element matrix lower end is dashed forward in ring.
Further, the spacing that described anti-shoulder is dashed forward between lobe in ring and lobe is not more than 2 millimeters.
Further, the dash forward joint face of ring and the angle of packing element matrix axis of described packing element matrix and anti-shoulder is 45 °.
Further, described anti-shoulder dash forward the surface of ring protrude described in the upper bottom surface of packing element matrix and bottom surface.
Further, the material of described packing element matrix is macromolecular material or composite material, and described anti-shoulder ring of dashing forward is metal material.
The beneficial effects of the utility model are:
1, compared with prior art, the utility model adopts the anti-shoulder of split-type structure to dash forward ring at the two ends of packing element matrix, and anti-shoulder is dashed forward, the material hardness of ring is greater than the material hardness of packing element matrix, can effectively prevent the sizing material at packing element matrix two ends from protruding along sleeve gap in packing element stand under load process, improve the overall sealing performance of packer, packing element made the life-span long.
2, anti-shoulder ring of dashing forward adopts split-type structure, and be taper seat with the joint face of packing element matrix, anti-shoulder ring of dashing forward together radially is expanded with packing element and is close to internal surface of casing in pressurized process, when after packing element unloading, anti-shoulder ring of dashing forward radially shrinks under the screen resilience effect of packing element matrix, be separated with sleeve pipe, packing element convenient disassembly.
3, the packing element matrix in the utility model and anti-shoulder dash forward ring by sulfuration or bonding connection, and technique is simple, easily processes.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the top view of Fig. 1.
Fig. 4 is the structural representation that packing element axial carrying of the present utility model contacts with internal surface of casing.
Detailed description of the invention
To be further described the utility model by drawings and Examples below.
As shown in Figures 1 to 4, packing element, comprise packing element matrix 1 to be connected with by sulfuration or the anti-shoulder that is bonded in packing element matrix 1 two ends is dashed forward ring 2, dash forward ring 2 of anti-shoulder is taper seat with the joint face of packing element matrix 1, the material of described packing element matrix 1 is macromolecular material or composite material, described anti-shoulder dashes forward ring 2 for metal material, and the dash forward external diameter of ring 2 of anti-shoulder is a bit larger tham the external diameter of packing element matrix 1.The anti-shoulder at described packing element matrix 1 two ends ring 2 of dashing forward is fFour piece type structure, the pintongs vertically alignment that the anti-shoulder that the anti-shoulder of packing element matrix 1 upper end dashes forward pintongs in ring 2 and packing element matrix 1 lower end is dashed forward in ring 2.The spacing L that described anti-shoulder is dashed forward between lobe in ring 2 and lobe is not more than 2 millimeters.The dash forward joint face of ring 2 and the angle of packing element matrix 1 axis of described packing element matrix 1 and anti-shoulder is 45 °.Described anti-shoulder dash forward the surface of ring 2 protrude described in the upper bottom surface of packing element matrix 1 and bottom surface.
When above-described packing element bears axial load, because following table bottom surface and the bottom surface of packing element matrix 1 are protruded in the dash forward surface of ring 2 of anti-shoulder, therefore anti-shoulder ring 2 of dashing forward contacts with compression tooling at first, anti-shoulder dashes forward ring 2 by axial force and radial component effect, vertically to compression while to radial dilatation, the dash forward external diameter of ring 2 of anti-shoulder is a bit larger tham the external diameter of packing element matrix 1, anti-shoulder ring 2 of dashing forward contacts with sleeve pipe 3 inner surface at first, block the gap between sleeve pipe 3, protrude along sleeve pipe 3 gap after preventing the sizing material crimp at packing element matrix 1 two ends, packing element matrix 1 pressurized also contacts with sleeve pipe 3 inner surface to radial dilatation.After packing element unloading, under the high resilience effect of packing element matrix 1, anti-shoulder ring 2 of dashing forward radially shrinks, and is separated, is convenient to the dismounting of packing element with sleeve pipe 3, changes and maintenance.
Compared with prior art, above-described packing element adopts the anti-shoulder of split-type structure to dash forward ring 2 at the two ends of packing element matrix 1, and anti-shoulder is dashed forward, the material hardness of ring 2 is greater than the material hardness of packing element matrix, can effectively prevent the sizing material at packing element matrix two ends from protruding along sleeve gap in packing element stand under load process, improve the overall sealing performance of packer, packing element made the life-span long.Anti-shoulder ring of dashing forward adopts fFour piece type structure, there is between lobe and lobe the spacing L being not more than 2 millimeters, and be taper seat with the joint face of packing element matrix, anti-shoulder ring of dashing forward together radially is expanded with packing element and is close to sleeve pipe 3 inner surface in pressurized process, when after packing element unloading, anti-shoulder ring 2 of dashing forward radially shrinks under the screen resilience effect of packing element matrix 1, with being separated of sleeve pipe 3, facilitates packing element to dismantle.Packing element matrix and anti-shoulder dash forward ring by sulfuration or bonding connection, and technique is simple, easily processes.
Below by reference to the accompanying drawings complete description is carried out to the technical scheme of the utility model embodiment, it should be noted that described embodiment is only the utility model part embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of the utility model protection.
Claims (6)
1. packing element, comprise packing element matrix (1) to be connected with by sulfuration or the anti-shoulder that is bonded in packing element matrix (1) two ends is dashed forward ring (2), it is characterized in that described anti-shoulder dashes forward ring (2) for split-type structure, the dash forward joint face of ring (2) and packing element matrix (1) of anti-shoulder is taper seat, the dash forward material hardness of ring (2) of anti-shoulder is greater than the material hardness of packing element matrix (1), and the dash forward external diameter of ring (2) of anti-shoulder is a bit larger tham the external diameter of packing element matrix (1).
2. packing element according to claim 1, it is characterized in that the anti-shoulder at described packing element matrix (1) two ends ring (2) of dashing forward is fFour piece type structure, the pintongs vertically alignment that the anti-shoulder that the anti-shoulder of packing element matrix (1) upper end dashes forward pintongs in ring (2) and packing element matrix (1) lower end is dashed forward in ring (2).
3. packing element according to claim 2, is characterized in that the spacing that described anti-shoulder is dashed forward between lobe in ring (2) and lobe is not more than 2 millimeters.
4. packing element according to claim 3, is characterized in that the dash forward joint face of ring (2) and the angle of packing element matrix (1) axis of described packing element matrix (1) and anti-shoulder is 45 °.
5. packing element according to claim 4, it is characterized in that described anti-shoulder dash forward the surface of ring (2) protrude described in the upper bottom surface of packing element matrix (1) and bottom surface.
6. packing element according to claim 5, is characterized in that the material of described packing element matrix (1) is macromolecular material or composite material, and described anti-shoulder ring (2) of dashing forward is metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520870527.XU CN205089276U (en) | 2015-11-04 | 2015-11-04 | Packer packing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520870527.XU CN205089276U (en) | 2015-11-04 | 2015-11-04 | Packer packing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205089276U true CN205089276U (en) | 2016-03-16 |
Family
ID=55479977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520870527.XU Active CN205089276U (en) | 2015-11-04 | 2015-11-04 | Packer packing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205089276U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497563A (en) * | 2019-03-05 | 2019-11-26 | 杜实阀门配件(上海)有限公司 | A kind of processing method of packing element mold and packing element |
| CN116446820A (en) * | 2023-04-27 | 2023-07-18 | 盐城市弘通石油机械有限公司 | Tail pipe top packer |
-
2015
- 2015-11-04 CN CN201520870527.XU patent/CN205089276U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497563A (en) * | 2019-03-05 | 2019-11-26 | 杜实阀门配件(上海)有限公司 | A kind of processing method of packing element mold and packing element |
| CN116446820A (en) * | 2023-04-27 | 2023-07-18 | 盐城市弘通石油机械有限公司 | Tail pipe top packer |
| CN116446820B (en) * | 2023-04-27 | 2023-10-31 | 盐城市弘通石油机械有限公司 | Tail pipe top packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |