CN205225147U - Wellhead cable sealing device - Google Patents
Wellhead cable sealing device Download PDFInfo
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- CN205225147U CN205225147U CN201520973417.6U CN201520973417U CN205225147U CN 205225147 U CN205225147 U CN 205225147U CN 201520973417 U CN201520973417 U CN 201520973417U CN 205225147 U CN205225147 U CN 205225147U
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- cable
- rubber gasket
- padding plate
- upper padding
- sealing device
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- 238000007789 sealing Methods 0.000 title claims abstract description 38
- 238000003825 pressing Methods 0.000 claims abstract description 26
- 239000004677 Nylon Substances 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 238000007373 indentation Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- 230000035515 penetration Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 241000254175 Anthonomus grandis Species 0.000 description 3
- 238000013023 gasketing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model provides a well head cable seal device, include clamp plate (2), upper padding plate (3), the sealed pad of rubber (5) and lower bolster (7) that from the top down stacked gradually the setting, contain three axial through-hole (8) that can make the cable pass in the well head cable seal device, axial through-hole (8) set up along vertical direction, and when clamp plate (2) compressed tightly upper padding plate (3), the sealed pad of rubber (5) and lower bolster (7), the sealed pad of rubber (5) can form sealedly with the cable that passes this sealed pad of rubber (5) after the pressurized deformation. The wellhead cable sealing device can be installed on an oil extraction wellhead of an electric submersible pump, and realizes cable fixation and sealing by pressing a rubber sealing gasket by a pressing plate, so that a cable of the electric submersible pump can penetrate through a wellhead mechanism and can be sealed and bear certain pressure, and oil and gas in a well can not leak. The device has the characteristics of simple structure, strong adaptability, good sealing performance and the like, and is installed on a wellhead to ensure that the electric pump works for a long time.
Description
Technical field
The utility model relates to a kind of accessory used at production wellhead, particularly a kind of wellhead cable sealing device.
Background technology
The electric pump well head cable sealing device of the domestic use of current China mainly contains two kinds.One is the sealing of laterally opened electric pump, boll-weevil hanger is rived, there are three cable penetration holes centre, because destroy the integrality of boll-weevil hanger, this structure does not meet specification, in onsite application, appearance extrudes the rubber pad undue force in boll-weevil hanger and destroys sealing performance and insulating performance of cable sometimes.Another kind is that cable passes from well head four-way, the two ends flutter valve making four-way original and outlet, only a surplus outlet, some function of oil well cannot realize, as casing gas discharging and producing fluid level test etc., and completion practice, complicated operation when installing well mouth hanger and lack of standardization.
Utility model content
In order to solve the high baroque problem of existing well head cable sealing device price, the utility model provides a kind of wellhead cable sealing device, this wellhead cable sealing device can be arranged on submersible pump oil extraction wellhead, rely on pressing plate extruding rubber sheet gasketing to realize cable fix and seal, the cable of electric submersible pump is made to pass well head mechanism, can seal again, bear certain pressure, oil gas in well can not be leaked.This device has the features such as structure is simple, strong adaptability, good seal performance, is installed on well head, makes electric pump long-term work.
The utility model solves the technical scheme that its technical problem adopts: a kind of wellhead cable sealing device, comprise the pressing plate, upper padding plate, rubber gasket and the lower bolster that are cascading from the top down, containing three axially extending bores that cable can be made to pass in described wellhead cable sealing device, axially extending bore is vertically arranged, when pressing plate compresses upper padding plate, rubber gasket and lower bolster, rubber gasket can be connected with the cable seal through this rubber gasket.
Pressing plate growth strip, first through hole passed for cable is contained at the middle part of pressing plate, and the outside of this first through hole is provided with annular boss, and this annular boss is positioned at the soffit of pressing plate, and the two ends of pressing plate are equipped with the second through hole passed for bolt.
Upper padding plate, rubber gasket are all identical with the external diameter of lower bolster, and the external diameter of upper padding plate equals the external diameter of this annular boss, and upper padding plate is identical with the structure of lower bolster, containing multiple rubber gasket between upper padding plate and lower bolster.
The structure of upper padding plate is identical with the structure of lower bolster, upper padding plate and lower bolster are circular metal plate, upper padding plate is provided with three inner via holes corresponding with axially extending bore, upper padding plate forms by the fanning strip identical with three in circle, this fanning strip is made up of an arc-shaped side and two crossing sides, described two sides of this fanning strip all arrange semicircular indentations, three these fanning strips are combined and are defined three described inner via holes, this inner via hole is positioned at the junction of two adjacent these fanning strips, the edge of upper padding plate contains annular groove, the circular garter spring that three fanning strips can be combined into upper padding plate is provided with in this annular groove.
Also supporting pad is provided with between upper padding plate and rubber gasket, upper supporting pad is circular nylon cushion, the inner via hole corresponding with axially extending bore is provided with in upper supporting pad, the edge of the soffit of upper supporting pad is provided with lower annular groove, and the section configuration of this lower annular groove is top isosceles triangle upward.
The external diameter of upper supporting pad equals the external diameter of upper padding plate, and the edge of upper supporting pad is provided with the angular cut passed for cable, and one end of angular cut is connected with this inner via hole, and the other end of angular cut is connected with the outer circumference surface of upper supporting pad.
The inner via hole corresponding with axially extending bore is provided with in rubber gasket, the edge of the upper surface of rubber gasket is provided with annular projection, on this, the section configuration of annular projection is top isosceles triangle upward, the edge of the soffit of rubber gasket is provided with lower annular groove, and the section configuration of this lower annular groove is top isosceles triangle upward.
The edge of rubber gasket is provided with the angular cut passed for cable, and one end of angular cut is connected with this inner via hole, and the other end of angular cut is connected with the outer circumference surface of upper rubber gasket.
Lower support pad is also provided with between rubber gasket and lower bolster, the external diameter of the rubber gaskets such as the external diameter of lower support pad, lower support pad is circular nylon cushion, the inner via hole corresponding with axially extending bore is provided with in lower support pad, the edge of the upper surface of lower support pad is provided with annular projection, and on this, the section configuration of annular projection is top isosceles triangle upward.
The edge of lower support pad is provided with the angular cut passed for cable, and one end of angular cut is connected with this inner via hole, and the other end of angular cut is connected with the outer circumference surface of lower support pad.
The beneficial effects of the utility model are, the characteristic of can be out of shape after utilizing rubber to be squeezed, filling, be combined with rubber sheet gasketing by cable, metal platen extruding rubber sheet gasketing is to make cable fix and to seal, thus the cable realizing electric submersible pump can pass well head mechanism, can seal again, bear certain pressure, test sealing load reaches as high as 15MPa, meet electric pump well instructions for use, oil gas in well can not be leaked.This device has the features such as structure is simple, strong adaptability, good seal performance, is installed on well head, makes electric pump long-term work.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further.
Fig. 1 is the assembling drawing of wellhead cable sealing device.
Fig. 2 is the front view of pressing plate.
Fig. 3 is the upward view of pressing plate.
Fig. 4 is the front view of upper padding plate.
Fig. 5 is the sectional view of upper padding plate.
Fig. 6 is the front view of upper supporting pad.
Fig. 7 is the sectional view of upper supporting pad.
Fig. 8 is the front view of rubber gasket.
Fig. 9 is the sectional view of rubber gasket.
Figure 10 is the front view of lower support pad.
Figure 11 is the sectional view of lower support pad.
Description of reference numerals:
1. circular garter spring, 2. pressing plate, 3. upper padding plate, 4. go up supporting pad, 5. rubber gasket, 6. lower support pad, 7. lower bolster, 8. axially extending bore, 9. angular cut, 10. cable.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and detailed description of the invention of the present utility model is described.
A kind of wellhead cable sealing device, comprise the pressing plate 2, upper padding plate 3, rubber gasket 5 and the lower bolster 7 that are cascading from the top down, containing three axially extending bores 8 that cable 10 can be made to pass in described wellhead cable sealing device, axially extending bore 8 is vertically arranged, when pressing plate 2 compresses upper padding plate 3, rubber gasket 5 and lower bolster 7, rubber gasket 5 can be tightly connected with the cable 10 through this rubber gasket 5 after compressive deformation, as shown in Figure 1.
In the present embodiment, containing three axially extending bores 8 that cable can be made to pass in described wellhead cable sealing device, the external diameter of the cable of axially extending bore 8 size and required sealing matches, pressing plate 2 is grown up strip, first through hole passed for cable is contained at the middle part of pressing plate 2, the outside of this first through hole is provided with annular boss, and this annular boss is positioned at the soffit of pressing plate 2, and the two ends of pressing plate 2 are provided with the second through hole passed for bolt.Upper padding plate 3, rubber gasket 5 are all identical with the external diameter of lower bolster 7, the external diameter of upper padding plate 3 equals the external diameter of this annular boss, upper padding plate 3 is identical with the structure of lower bolster 7, can be provided with multiple rubber gasket 5, as shown in Figures 2 and 3 between upper padding plate 3 and lower bolster 7.
In the present embodiment, the structure of upper padding plate 3 is identical with the structure of lower bolster 7, upper padding plate 3 and lower bolster 7 are circular metal plate, upper padding plate 3 is provided with three inner via holes corresponding with axially extending bore 8, upper padding plate 3 forms by the fanning strip identical with three in circle, this fanning strip is made up of an arc-shaped side and two crossing sides, described two sides of this fanning strip all arrange semicircular indentations, three these fanning strips are combined and are defined three described inner via holes, this inner via hole is positioned at the junction of two adjacent these fanning strips, the edge of upper padding plate 3 contains annular groove, the circular garter spring 1 that three fanning strips can be combined into upper padding plate 3 is provided with in this annular groove, as shown in Figure 4 and Figure 5.
In the present embodiment, supporting pad 4 is also provided with between upper padding plate 3 and rubber gasket 5, upper supporting pad 4 is circular nylon cushion, three inner via holes corresponding with three axially extending bores 8 are provided with in upper supporting pad 4, the edge of the soffit of upper supporting pad 4 is provided with lower annular groove, and the section configuration of this lower annular groove is top isosceles triangle upward.The external diameter of upper supporting pad 4 equals the external diameter of upper padding plate 3, and the edge of upper supporting pad 4 is provided with the angular cut 9 passed for cable, and one end of angular cut 9 is connected with this inner via hole, and the other end of angular cut 9 is connected with the outer circumference surface of upper supporting pad 4, as shown in Figure 6 and Figure 7.
In the present embodiment, this wellhead cable sealing device contains 5 rubber gaskets 5, the inner via hole corresponding with three axially extending bores 8 is provided with in rubber gasket 5, the edge of the upper surface of rubber gasket 5 is provided with annular projection, on this, the section configuration of annular projection is top isosceles triangle upward, the edge of the soffit of rubber gasket 5 is provided with lower annular groove, and the section configuration of this lower annular groove is top isosceles triangle upward.The lower annular groove of the upper annular projection of the top surface edge of rubber gasket 5 and the lower surface edge of upper supporting pad 4 matches.The edge of rubber gasket 5 is provided with the angular cut 9 passed for cable, and one end of angular cut 9 is connected with this inner via hole, and the other end of angular cut 9 is connected with the outer circumference surface of upper rubber gasket 5, as shown in Figure 8 and Figure 9.
In the present embodiment, lower support pad 6 is also provided with between rubber gasket 5 and lower bolster 7, the external diameter of the rubber gaskets 5 such as the external diameter of lower support pad 6, lower support pad 6 is circular nylon cushion, three inner via holes corresponding with three axially extending bores 8 are provided with in lower support pad 6, the edge of the upper surface of lower support pad 6 is provided with annular projection, and on this, the section configuration of annular projection is top isosceles triangle upward.The lower annular groove of the upper annular projection of the top surface edge of lower support pad 6 and the lower surface edge of rubber gasket 5 matches.The edge of lower support pad 6 is provided with the angular cut 9 passed for cable, and one end of angular cut 9 is connected with this inner via hole, and the other end of angular cut 9 is connected with the outer circumference surface of lower support pad 6, as shown in Figure 10 and Figure 11.
Introduce the using method of this wellhead cable sealing device below.Upper padding plate 3 and lower bolster 7 all have three for the inner via hole of cable penetration, and upper padding plate 3 and lower bolster 7 can both assemble with cable 10 the overall backing plate that formation one slides along cable.Upper supporting pad 4 and lower support pad 6 also have three for the inner via hole of cable penetration, are provided with three angular cuts 9 from the edge of upper supporting pad 4 and lower support pad 6, make cable 10 be fit into the inner via hole of upper supporting pad 4 and lower support pad 6 from angular cut 9; The edge of rubber gasket 5 is provided with three inner via holes for cable penetration, make cable be fit into the inner via hole of rubber gasket 5 from angular cut 9, pressing plate 2, upper padding plate 3, upper supporting pad 4, rubber gasket 5, lower support pad 6, lower bolster 7 are connected from the top down layer by layer.After together with assembling shown in cable sealing device with cable 10 installation drawing 1, put into the cable penetration hole of import, by pressing plate 2 by bolton in well head, to bolt on screw thread according to practical adjustments, make rubber gasket be combined with cable and suitably compress, realize fix and seal, sealing load 15MPa.
This device coordinates the well head of electric motor drive oil pump system, when oil well operation, under electric submersible pump after design attitude, install well head, cable of electric submersible pump passes well head, by electric pump well head cable sealing device, cable is fixed, seals, liquids and gases in well are not leaked out by cable penetration hole.
It is easy for installation that onsite application proves that this device has compared with domestic prior art, and functional reliability is high, long service life, can the feature of repeated application, compared with external product, greatly reduces electric pump well head use cost.
The foregoing is only the schematic detailed description of the invention of the utility model, and be not used to limit scope of the present utility model.Any those skilled in the art, the equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.And it should be noted that, each ingredient of the present utility model is not limited in above-mentioned overall applicability, the each technical characteristic described in manual of the present utility model can select one to adopt separately or select the multinomial use that combines according to actual needs, therefore, the utility model naturally covers other relevant with this case innovative point and combines and embody rule.
Claims (10)
1. a wellhead cable sealing device, it is characterized in that, described wellhead cable sealing device comprises the pressing plate (2) be cascading from the top down, upper padding plate (3), rubber gasket (5) and lower bolster (7), containing three axially extending bores (8) that cable can be made to pass in described wellhead cable sealing device, axially extending bore (8) is vertically arranged, when pressing plate (2) compresses upper padding plate (3), when rubber gasket (5) and lower bolster (7), rubber gasket (5) can be connected with the cable seal through this rubber gasket (5).
2. wellhead cable sealing device according to claim 1, it is characterized in that, pressing plate (2) growth strip, first through hole passed for cable is contained at the middle part of pressing plate (2), the outside of this first through hole is provided with annular boss, this annular boss is positioned at the soffit of pressing plate (2), and the two ends of pressing plate (2) are equipped with the second through hole passed for bolt.
3. wellhead cable sealing device according to claim 2, it is characterized in that, upper padding plate (3), rubber gasket (5) are all identical with the external diameter of lower bolster (7), the external diameter of upper padding plate (3) equals the external diameter of this annular boss, upper padding plate (3) is identical with the structure of lower bolster (7), containing multiple rubber gasket (5) between upper padding plate (3) and lower bolster (7).
4. wellhead cable sealing device according to claim 1, it is characterized in that, the structure of upper padding plate (3) is identical with the structure of lower bolster (7), upper padding plate (3) and lower bolster (7) are circular metal plate, upper padding plate (3) is provided with three inner via holes corresponding with axially extending bore (8), upper padding plate (3) forms by the fanning strip identical with three in circle, this fanning strip is made up of an arc-shaped side and two crossing sides, described two sides of this fanning strip all arrange semicircular indentations, three these fanning strips are combined and are defined three described inner via holes, this inner via hole is positioned at the junction of two adjacent these fanning strips, the edge of upper padding plate (3) contains annular groove, the circular garter spring (1) that three fanning strips can be combined into upper padding plate (3) is provided with in this annular groove.
5. wellhead cable sealing device according to claim 1, it is characterized in that, supporting pad (4) is also provided with between upper padding plate (3) and rubber gasket (5), upper supporting pad (4) is circular nylon cushion, the inner via hole corresponding with axially extending bore (8) is provided with in upper supporting pad (4), the edge of the soffit of upper supporting pad (4) is provided with lower annular groove, and the section configuration of this lower annular groove is top isosceles triangle upward.
6. wellhead cable sealing device according to claim 5, it is characterized in that, the external diameter of upper supporting pad (4) equals the external diameter of upper padding plate (3), the edge of upper supporting pad (4) is provided with the angular cut (9) passed for cable, one end of angular cut (9) is connected with this inner via hole, and the other end of angular cut (9) is connected with the outer circumference surface of upper supporting pad (4).
7. wellhead cable sealing device according to claim 1, it is characterized in that, the inner via hole corresponding with axially extending bore (8) is provided with in rubber gasket (5), the edge of the upper surface of rubber gasket (5) is provided with annular projection, on this, the section configuration of annular projection is top isosceles triangle upward, the edge of the soffit of rubber gasket (5) is provided with lower annular groove, and the section configuration of this lower annular groove is top isosceles triangle upward.
8. wellhead cable sealing device according to claim 7, it is characterized in that, the edge of rubber gasket (5) is provided with the angular cut (9) passed for cable, one end of angular cut (9) is connected with this inner via hole, and the other end of angular cut (9) is connected with the outer circumference surface of upper rubber gasket (5).
9. wellhead cable sealing device according to claim 1, it is characterized in that, lower support pad (6) is also provided with between rubber gasket (5) and lower bolster (7), the external diameter of the rubber gaskets (5) such as the external diameter of lower support pad (6), lower support pad (6) is circular nylon cushion, the inner via hole corresponding with axially extending bore (8) is provided with in lower support pad (6), the edge of the upper surface of lower support pad (6) is provided with annular projection, and on this, the section configuration of annular projection is top isosceles triangle upward.
10. wellhead cable sealing device according to claim 9, it is characterized in that, the edge of lower support pad (6) is provided with the angular cut (9) passed for cable, one end of angular cut (9) is connected with this inner via hole, and the other end of angular cut (9) is connected with the outer circumference surface of lower support pad (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520973417.6U CN205225147U (en) | 2015-11-30 | 2015-11-30 | Wellhead cable sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520973417.6U CN205225147U (en) | 2015-11-30 | 2015-11-30 | Wellhead cable sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205225147U true CN205225147U (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520973417.6U Active CN205225147U (en) | 2015-11-30 | 2015-11-30 | Wellhead cable sealing device |
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| Country | Link |
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| CN (1) | CN205225147U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111478080A (en) * | 2020-03-20 | 2020-07-31 | 中航光电科技股份有限公司 | Combined fireproof wall-penetrating socket easy to install |
| CN112081555A (en) * | 2020-09-22 | 2020-12-15 | 山东天汇石油技术有限公司 | Viscosity reducing device for thick oil rodless submersible pump well |
-
2015
- 2015-11-30 CN CN201520973417.6U patent/CN205225147U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111478080A (en) * | 2020-03-20 | 2020-07-31 | 中航光电科技股份有限公司 | Combined fireproof wall-penetrating socket easy to install |
| CN112081555A (en) * | 2020-09-22 | 2020-12-15 | 山东天汇石油技术有限公司 | Viscosity reducing device for thick oil rodless submersible pump well |
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