CN202663080U - Self-sealing device for cable in high-pressure oil well - Google Patents
Self-sealing device for cable in high-pressure oil well Download PDFInfo
- Publication number
- CN202663080U CN202663080U CN 201220340802 CN201220340802U CN202663080U CN 202663080 U CN202663080 U CN 202663080U CN 201220340802 CN201220340802 CN 201220340802 CN 201220340802 U CN201220340802 U CN 201220340802U CN 202663080 U CN202663080 U CN 202663080U
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- sealing
- lower floor
- cable
- foundary weight
- self
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Abstract
The utility model discloses a self-sealing device for a cable in a high-pressure oil well. The self-sealing device is arranged between an insulating layer and a sealing cylinder of the cable and comprises a top cover, a top ring, an upper-layer weight, a middle rubber sealing pad, a middle weight, a lower-layer rubber sealing pad and a lower-layer weight which are sequentially arranged in a compacting manner from top to bottom, wherein the top cover is connected to the sealing cylinder via a thread, the top ring is in slide fit with the upper-layer weight, and the upper-layer weight, the middle weight and the lower-layer weight are respectively of a two-part structure. The self-sealing device improves the sealing effect of a cable sealing structure, solves the problem of wearing, caused by the rotation of a sealing assembly, of the sealing parts of the rubber sealing pads, and is convenient to install.
Description
Technical field
The utility model relates to a kind of self-seal device, particularly relates to a kind of high pressure oil wells cable self-seal device.
Background technology
Existing oil well sees also Fig. 1 with cable seal structure; after cable removed the armour skin; expose protective layer 1-2; then adopt foundary weight 1-3 and sealing gasket 1-4 multiple-layer stacked; pressurize the whole cable lock sealing in sealing drum 1-1 with screw thread by pressure cap 1-5, sealing drum 1-1 is arranged on the production tree master flange again.The advantage that existing structure has is: multi-layer sealed pad can reduce underground high-efficient oil and gas leakage risk.The shortcoming of existing structure is: 1) when compression pressure cap 1-5 " dynamics " is too small, rubber gasket 1-4 distortion deficiency and thrust in the sealing drum 1-1 are inadequate, cause sealing and pressure-bearing thereof undesirable; 2) protective layer 1-2 external diameter is non-smooth structure, contacts with rubber gasket 1-4 and can not form tight seal, causes easily gas leak phenomenon; 3) whole cable sealing, hermetically-sealed construction rotates easily, and rotation can make the sealing position wearing and tearing of rubber gasket, and sealing property descends, and causes sealing place gas leakage.
The utility model content
The utility model provides a kind of sealing effectiveness high pressure oil wells cable self-seal device better, easy for installation for solving the technical problem that exists in the prior art.
The technical scheme that the utility model is taked for solution prior art problem is: a kind of high pressure oil wells cable self-seal device, this self-seal device is arranged between the insulating barrier and sealing drum of cable, this self-seal device comprises top cover, apical ring, upper laminated iron, intermediate rubber sealing gasket, middle foundary weight, lower floor's rubber gasket and the lower floor's foundary weight that compresses successively from top to bottom setting, described top cover is threaded connection on described sealing drum, and described apical ring and described upper laminated iron are slidingly matched; Described upper laminated iron, described middle foundary weight and described lower floor foundary weight are two lobe formula structures.
Perfusion is formed with the flexible glue ring set between the insulating barrier of described cable and described sealing drum.
The bottom of described lower floor foundary weight is the inversed taper platform structure, and top is provided with protruding ring, and the section of described protruding ring is taper; The bottom of described lower floor rubber gasket is provided with the annular groove that coincide with described lower floor foundary weight upper lobes ring, and top is provided with the inversed taper platform connected in star; The structure of described middle foundary weight is identical with the structure of described lower floor foundary weight; Described intermediate rubber sealing gasket is identical with the structure of described lower floor rubber gasket; The bottom of described top layer foundary weight is the inversed taper platform structure of coincideing with described intermediate rubber sealing gasket top inversed taper platform connected in star.
The bottom of described apical ring is the inversed taper platform structure.
Advantage and the good effect that the utlity model has are: be arranged on sealing between cable insulating layer and the sealing drum and make apical ring and structure that upper laminated iron is slidingly matched by adopting, improved the sealing effectiveness of cable seal structure, solved because black box rotates and caused rubber gasket sealing position because rotation causes the problem of wearing and tearing, and easy for installation.
Description of drawings
Fig. 1 is the structural representation of prior art;
Fig. 2 is structural representation of the present utility model.
Among the figure: 1, cable, 2, top cover, 3, apical ring, 4, upper laminated iron 5, intermediate rubber sealing gasket, 6, middle foundary weight, 7, lower floor's rubber gasket, 8, lower floor's foundary weight, 9, sealing drum, 10, the flexible glue ring set.
Embodiment
For further understanding summary of the invention of the present utility model, Characteristic, exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:
See also Fig. 2, a kind of high pressure oil wells cable self-seal device, this self-seal device is arranged between the insulating barrier and sealing drum 9 of cable 1, the sealing device comprises top cover 2, apical ring 3, upper laminated iron 4, intermediate rubber sealing gasket 5, middle foundary weight 6, lower floor's rubber gasket 7 and the lower floor's foundary weight 8 that compresses successively from top to bottom setting, top cover 2 is threaded connection on sealing drum 9, apical ring 3 is slidingly matched with upper laminated iron 4, can avoid when the locking top cover, and whole black box rotates.Solved because black box rotates and caused rubber gasket sealing position because rotation causes the problem of wearing and tearing, improved the sealing effectiveness of hermetically-sealed construction.For the ease of installing, upper laminated iron 4, middle foundary weight 6 and lower floor's foundary weight 8 all adopt two lobe formula structures.
In order further to improve the sealing property of hermetically-sealed construction, the bottom of lower floor's foundary weight 8 is set to the inversed taper platform structure, establishes protruding ring on lower floor's foundary weight 8 tops, and the section of protruding ring is taper; The bottom of lower floor's rubber gasket 7 is provided with the annular groove that coincide with lower floor foundary weight 8 upper lobes rings, and top is provided with the inversed taper platform connected in star; The structure of middle foundary weight 6 is identical with the structure of lower floor foundary weight 8; Intermediate rubber sealing gasket 5 is identical with the structure of lower floor rubber gasket 7; The bottom of upper laminated iron 4 is the inversed taper platform structure of coincideing with intermediate rubber sealing gasket 5 top inversed taper platform connected in stars.
For the ease of installing and processing, the bottom of institute's apical ring 3 is set to the inversed taper platform structure.
Installation method of the present utility model:
1) cable sheath and protective layer are pushed aside; the insulating barrier that exposes cable; lower floor's foundary weight 8 conical surfaces are downward; two lobe foundary weight are fastened on the cable 1; annular groove with lower floor's rubber gasket 7 is enclosed within downwards on the cable 1 again, and the protruding ring on lower floor's foundary weight 8 is seated in the annular groove of lower floor's rubber gasket 7 bottoms, interference fit; force caulking gum outwards to part a little, thus realized lower floor's rubber gasket 7 and sealing drum 9 inwalls, with the sealing of cable 1 insulating barrier outer wall.
2) middle foundary weight 6 conical surfaces are downward, 2 lobe foundary weight are fastened on the cable 1, the bottom inversed taper platform structure of middle foundary weight 6 and the inversed taper platform connected in star interference fit on lower floor's rubber gasket 7 tops, thus realize sealing.
3) put into intermediate rubber sealing gasket 5 and upper laminated iron 4.The bottom inversed taper platform structure of upper laminated iron 4 and the inversed taper platform connected in star interference fit on middle level rubber gasket 5 tops, thus realize sealing.The upper surface of upper laminated iron 4 is planar structure.
4) apical ring 3 conical surfaces are enclosed within downwards on the phase cable 1, apical ring 3 is slidingly matched with top layer foundary weight 4, can avoid when the locking top cover, and whole black box rotates.
5) top cover 2 and sealing drum 9 are passed through screw-threaded coupling, the realization integral sealing thereby the distortion of compressing rubber gasket puts in place.
6) fill flexible glue in the space between the insulating barrier of sealing drum and cable, form flexible glue ring set 10.When arriving the down-hole under the self-seal device, because the effect of down-hole pressure, thereby flexible glue can compacted realization secondary seal.
Although the above is described preferred embodiment of the present utility model by reference to the accompanying drawings; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away from the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection range of the present utility model.
Claims (4)
1. high pressure oil wells cable self-seal device, it is characterized in that, this self-seal device is arranged between the insulating barrier and sealing drum of cable, this self-seal device comprises top cover, apical ring, upper laminated iron, intermediate rubber sealing gasket, middle foundary weight, lower floor's rubber gasket and the lower floor's foundary weight that compresses successively from top to bottom setting, described top cover is threaded connection on described sealing drum, and described apical ring and described upper laminated iron are slidingly matched; Described upper laminated iron, described middle foundary weight and described lower floor foundary weight are two lobe formula structures.
2. high pressure oil wells cable self-seal device according to claim 1 is characterized in that, perfusion is formed with the flexible glue ring set between the insulating barrier of described cable and described sealing drum.
3. high pressure oil wells cable self-seal device according to claim 1 and 2 is characterized in that, the bottom of described lower floor foundary weight is the inversed taper platform structure, and top is provided with protruding ring, and the section of described protruding ring is taper; The bottom of described lower floor rubber gasket is provided with the annular groove that coincide with described lower floor foundary weight upper lobes ring, and top is provided with the inversed taper platform connected in star; The structure of described middle foundary weight is identical with the structure of described lower floor foundary weight; Described intermediate rubber sealing gasket is identical with the structure of described lower floor rubber gasket; The bottom of described top layer foundary weight is the inversed taper platform structure of coincideing with described intermediate rubber sealing gasket top inversed taper platform connected in star.
4. high pressure oil wells cable self-seal device according to claim 1 and 2 is characterized in that, the bottom of described apical ring is the inversed taper platform structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220340802 CN202663080U (en) | 2012-07-13 | 2012-07-13 | Self-sealing device for cable in high-pressure oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220340802 CN202663080U (en) | 2012-07-13 | 2012-07-13 | Self-sealing device for cable in high-pressure oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202663080U true CN202663080U (en) | 2013-01-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220340802 Expired - Lifetime CN202663080U (en) | 2012-07-13 | 2012-07-13 | Self-sealing device for cable in high-pressure oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202663080U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846372A (en) * | 2015-01-30 | 2016-08-10 | 发那科株式会社 | Apparatus and electronic equipment |
| CN110474219A (en) * | 2018-06-29 | 2019-11-19 | 中航光电科技股份有限公司 | The oil-filled tooling of oil seal electric connector |
| CN114977038A (en) * | 2022-06-27 | 2022-08-30 | 应急管理部国家自然灾害防治研究院 | Underground cable sealing device |
-
2012
- 2012-07-13 CN CN 201220340802 patent/CN202663080U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846372A (en) * | 2015-01-30 | 2016-08-10 | 发那科株式会社 | Apparatus and electronic equipment |
| CN110474219A (en) * | 2018-06-29 | 2019-11-19 | 中航光电科技股份有限公司 | The oil-filled tooling of oil seal electric connector |
| CN110474219B (en) * | 2018-06-29 | 2021-01-29 | 中航光电科技股份有限公司 | Oil filling tool for oil-sealed electric connector |
| CN114977038A (en) * | 2022-06-27 | 2022-08-30 | 应急管理部国家自然灾害防治研究院 | Underground cable sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |