CN204492737U - Oil field shaft mouth sealing device - Google Patents
Oil field shaft mouth sealing device Download PDFInfo
- Publication number
- CN204492737U CN204492737U CN201520184591.2U CN201520184591U CN204492737U CN 204492737 U CN204492737 U CN 204492737U CN 201520184591 U CN201520184591 U CN 201520184591U CN 204492737 U CN204492737 U CN 204492737U
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- China
- Prior art keywords
- tuningout
- box body
- blowout prevention
- pressure cover
- prevention pressure
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- Expired - Fee Related
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Abstract
A kind of oil field shaft mouth sealing device.Mainly solve existing sealing device tuningout weak effect, the problem that application life is short.It is characterized in that: tuningout lower contact (1) upper end is placed in tuningout body gland (2), tuningout body gland (2) top is connected with tuningout body base (3), tuningout body base (3) endoporus axis runout tuningout body base (3) lower outer diameter axis, tuningout body base (3) upper end is connected with paraffin valve (4), box body (5) upper end on paraffin valve (4) is connected with blowout prevention pressure cover (6), box body (5) interior nylon cushion (7) and rubber pad, energy-stored spring (8) is had under nylon cushion (7), box body (5) there is note valve (9), box body is marked with rubber grain in (5), blowout prevention pressure cover (6) interior organic oil, spray-proof ball (11) is built-in with in blowout prevention pressure cover (6), blowout prevention pressure cover (6) is built-in with rubber seal.It is effective that this oil field shaft mouth sealing device has automatic deflection adjusting, changes packing and be easy to feature.
Description
Technical field:
The utility model relates to field of oil field oil extraction well head sealing device used, especially oil field shaft mouth sealing device.
Background technology:
In field of oil field oil extraction, in order to prevent well liquid by polished rod and the leakage of well head cooperation place, need, on well head, sealing device is installed.And existing sealing device exists tuningout weak effect due to reasons in structure, change packing difficulty, the problem that application life is short, extend the repair time, increase maintenance cost, affect oil recovery efficiency.
Utility model content:
In order to solve existing sealing device tuningout weak effect, change packing difficulty, the problem that application life is short.The utility model provides a kind of oil field shaft mouth sealing device.It is effective that this oil field shaft mouth sealing device has automatic deflection adjusting, do not need to change packing, also do not need to shut down, the feature of long service life.
The technical solution of the utility model is: this oil field shaft mouth sealing device comprises tuningout lower contact, tuningout body gland, tuningout body base, paraffin valve and box body.Tuningout lower contact upper end is oval, tuningout lower contact upper end is placed in tuningout body gland, tuningout body gland top is connected with tuningout body base, the difference of tuningout body gland internal diameter and tuningout lower contact external diameter is positive number, tuningout body base endoporus axis runout tuningout body base lower outer diameter axis, rubber pad is equipped with between tuningout lower contact and tuningout body base, tuningout body base upper end is connected with paraffin valve, the top connection of paraffin valve is connected with box body, cassette upper end is connected with blowout prevention pressure cover, box body bottom is built-in with lower nylon cushion and lower rubber pad, cassette upper end is built-in with rubber pad and upper nylon cushion, under lower nylon cushion, energy-storing chamber is built-in with energy-stored spring, note valve is communicated with in the middle part of box body, rubber grain is marked with in box body, organic oil in blowout prevention pressure cover, blowout prevention pressure cover sidewall has and downward-sloping deposits bulb, spray-proof ball there is pipe cap, deposit bulb and be built-in with spring and spray-proof ball, in blowout prevention pressure cover, upper stage is equipped with rubber seal, the difference of spray-proof ball external diameter and rubber seal endoporus is positive number, rubber seal has been threaded connection clamping cap in blowout prevention pressure cover.
The utility model has following beneficial effect: this oil field shaft mouth sealing device is owing to adopting tuningout lower contact upper end for oval, tuningout lower contact upper end is placed in tuningout body gland, tuningout body gland top is connected with tuningout body base, the difference of tuningout body gland internal diameter and tuningout lower contact external diameter is positive number, tuningout body base endoporus axis runout tuningout body base lower outer diameter axis, rubber pad is equipped with between tuningout lower contact and tuningout body base, tuningout body base upper end is connected with paraffin valve, the top connection of paraffin valve is connected with box body, cassette upper end is connected with blowout prevention pressure cover, box body bottom is built-in with lower nylon cushion and lower rubber pad, cassette upper end is built-in with rubber pad and upper nylon cushion, under lower nylon cushion, energy-storing chamber is built-in with energy-stored spring, note valve is communicated with in the middle part of box body, rubber grain is marked with in box body, organic oil in blowout prevention pressure cover, blowout prevention pressure cover sidewall has and downward-sloping deposits bulb, spray-proof ball there is pipe cap, deposit bulb and be built-in with spring and spray-proof ball, in blowout prevention pressure cover, upper stage is equipped with rubber seal, the difference of spray-proof ball external diameter and rubber seal endoporus is positive number, rubber seal is threaded connection the structure of clamping cap in blowout prevention pressure cover.Utilize tuningout lower contact upper end for oval and tuningout body base eccentric inner hole, improve automatic deflection adjusting effect, utilize rubber grain in box body, do not need to shut down and change packing, thus increase the service life.Utilize spray-proof ball in disconnected bar blowout prevention, utilize blowout prevention pressure cover inner engine oil to protect polished rod, and structure is simple simultaneously.To have automatic deflection adjusting effective for this oil field shaft mouth sealing device thus, do not need to change packing, also do not need to shut down, the feature of long service life.
Accompanying drawing illustrates:
Accompanying drawing 1 is the utility model structural representation.
1-tuningout lower contact in figure, 2-tuningout body gland, 3-tuningout body base, 4-paraffin valve, 5-box body, 6-blowout prevention pressure cover, nylon cushion under 7-, 8-energy-stored spring, 9-notes valve, and 10-deposits bulb, 11-spray-proof ball, 12-clamping cap.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in the figure, this oil field shaft mouth sealing device comprises tuningout lower contact 1, tuningout body gland 2, tuningout body base 3, paraffin valve 4 and box body 5.Tuningout lower contact 1 upper end is oval, that is tuningout lower contact 1 is tubulose, annular boss is had outside upper end, boss seems oval from top to bottom, tuningout lower contact 1 upper end is placed in tuningout body gland 2, tuningout body gland 2 top is connected with tuningout body base 3 by screw thread, the difference of tuningout body gland 2 internal diameter and tuningout lower contact 1 external diameter is positive number, that is tuningout lower contact 1 external diameter is less than tuningout body gland 2 internal diameter, tuningout lower contact 1 can move in parallel in tuningout body gland 2, reaches the object of tuningout.Tuningout body base 3 endoporus axis runout tuningout body base 3 lower outer diameter axis, that is tuningout body base 3 inner hole centreline is eccentric relative to tuningout body base 3 lower outer diameter center line, rubber pad is equipped with between tuningout lower contact 1 and tuningout body base 3, rubber pad seals, tuningout body base 3 upper end is connected with paraffin valve 4, the top connection of paraffin valve 4 is connected with box body 5, box body 5 upper end is connected with blowout prevention pressure cover 6, box body 5 bottom inner step is equipped with lower nylon cushion 7 and lower rubber pad from the bottom to top, lower nylon cushion 7 and lower rubber pave support and sealing function, rubber pad and upper nylon cushion is equipped with from the bottom to top in box body 5 upper end, upper rubber pad and upper nylon pave support and sealing function, lower nylon cushion 7 times energy-storing chambers are built-in with energy-stored spring 8, thrust is supplemented by energy-stored spring 8 pairs of rubber grains, note valve 9 is communicated with in the middle part of box body 5, rubber grain is marked with in box body 5 between lower rubber pad and upper rubber pad, by note valve 9 to box body 5 filled rubber grain, rubber grain seals, organic oil in blowout prevention pressure cover 6, machine oil rises polished rod lubrication antisepsis, have between stage up and down in blowout prevention pressure cover 6 and downward-sloping deposit bulb 10, deposit bulb 10 and be built-in with spray-proof ball 11, spring is equipped with between spray-proof ball 11 and the pipe cap depositing bulb 10, after polished rod break falls, push away spray-proof ball 11 by spring seal blowout prevention pressure cover 6 upper end hole, in blowout prevention pressure cover 6, upper stage is equipped with rubber seal, the difference of spray-proof ball 11 external diameter and rubber seal endoporus is positive number, that is rubber seal diameter of bore is less than spray-proof ball 11 external diameter, rubber seal has been threaded connection clamping cap 12 in blowout prevention pressure cover 6.The each parts of this oil field shaft mouth sealing device adopt 12cr13 material carbon dioxide corrosion resistant, is adapted to carbon dioxide producing well, can adapt to carbon dioxide injection producing well more than seven days not fluid when still keep sealing state.Adaptive temperature is-40 DEG C to 100 DEG C.
During actual use, this oil field shaft mouth sealing device is arranged on well head, does not first lock tuningout body gland 2, allow polished rod drive tuningout body base 3 mobile automatic deflection adjusting in tuningout body gland 2, mix up rear locking tuningout body gland 2.Then injector is connected with note valve 9, injects rubber grain sealing polished rod to box body 5.In blowout prevention pressure cover 6, machine oil is noted again by depositing bulb 10.Both can normally use.
This oil field shaft mouth sealing device tuningout lower contact automatic deflection adjusting distance can reach 18 millimeters.This oil field shaft mouth sealing device sealing principle in box, injects rubber grain by note valve 9, and outside rubber self is compressible, particle and the gap between expecting also are the factors of supplementary elastic expansion.In addition, in box body 5, bottom is provided with an accumulator, when injecting particle, accumulator can store sizable energy, and when abrasion of particles, it can continuously release energy, the pressure of stable for extended periods of time in box can be made, also just make polished rod and well head keep sealing state for a long time.
The advantage that this oil field shaft mouth sealing device has:
1, energy automatic deflection adjusting 0---18 millimeters, the application life of polished rod being extended, polished rod decentraction when running up and down can also being adapted to.Sealing cycle overlength, function of automatically shunting in a well when also there is light rod-broken simultaneously.Do not need to change packing, additional fillers does not need to shut down.。
2, can automatically shunt in a well after light rod-broken.
3, Sealing period overlength, can more than 2 years for the disposable sealing of the well that polished rod is good.
4, all applicable to any state of polished rod.
5, there is no special circumstances, do not shut down all the year round, in box during makeup energy, within 5 minutes, just need only can complete, need not shut down yet.
6, protective effect is had to polished rod.
(1) there will not be and smash polished rod because changing packing.
(2) there is grease in filler, form layer protecting film on polished rod surface, corrosive liquids can be prevented the corrosion of polished rod.
7, owing to being provided with shoe cream room in upper press cover, good protection and lubrication can be played to polished rod again to the well of interval fluid.
8, the labour intensity both having reduced workman additionally reduces hidden danger.
9, environmental protection: the common well adding packing, must change once at least for three, five days, and except the oily wastewater pollution that race is emitted, the packing changed is not because recycling, and where all throw away is pollute.And just there are not the problems referred to above with this device.
10, energy-conservation: except environmental protection, most important is exactly energy-conservation
The necessary stop and start oil pumper minimum 40 minutes at every turn because often changing packing, for going out silt particle and the more serious well of fouling, be easy to cause holddown and upper hot car washing group or job execution unfreezing, expense several thousand yuan to several ten thousand yuan, in addition, due to frequent stop and start oil pumper, also infringement is had to the application life of each portion part, simultaneously also useless electric, in addition, common packing wearing and tearing about 10% are just done for, by adding ten packings at every turn, each packing two yuan, within average ten days, change and once calculate, change packing just handy 720 yuan one time, with after this device, 2-3 particle is supplemented at most in 1 year, total amount is also less than one kilogram, by 20 yuan one kilogram calculating, every year every mouthful of well only packing just can save more than 700 yuan.
11, packing meets the non-constant of cold compression performance in the winter time, compresses very difficult, and with granule sealed just different.Each particle is separate component, stirs with oil in addition, so just there is not the problem of compression performance difference, sealing effectiveness is than with good a lot of of packing.
Claims (1)
1. an oil field shaft mouth sealing device, comprise tuningout lower contact (1), tuningout body gland (2), tuningout body base (3), paraffin valve (4) and box body (5), it is characterized in that: tuningout lower contact (1) upper end is for oval, tuningout lower contact (1) upper end is placed in tuningout body gland (2), tuningout body gland (2) top is connected with tuningout body base (3), the difference of tuningout body gland (2) internal diameter and tuningout lower contact (1) external diameter is positive number, tuningout body base (3) endoporus axis runout tuningout body base (3) lower outer diameter axis, rubber pad is equipped with between tuningout lower contact (1) and tuningout body base (3), tuningout body base (3) upper end is connected with paraffin valve (4), the top connection of paraffin valve (4) is connected with box body (5), box body (5) upper end is connected with blowout prevention pressure cover (6), box body (5) bottom is built-in with lower nylon cushion (7) and lower rubber pad, box body (5) upper end is built-in with rubber pad and upper nylon cushion, under lower nylon cushion (7), energy-storing chamber is built-in with energy-stored spring (8), box body (5) middle part is communicated with note valve (9), box body is marked with rubber grain in (5), blowout prevention pressure cover (6) interior organic oil, blowout prevention pressure cover (6) sidewall has and downward-sloping deposits bulb (10), deposit bulb (10) and be built-in with spring and spray-proof ball (11), deposit on bulb (10) and have pipe cap, blowout prevention pressure cover (6) inner step is equipped with rubber seal, the difference of spray-proof ball (11) external diameter and rubber seal endoporus is positive number, rubber seal has been threaded connection clamping cap (12) in blowout prevention pressure cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520184591.2U CN204492737U (en) | 2015-03-27 | 2015-03-27 | Oil field shaft mouth sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520184591.2U CN204492737U (en) | 2015-03-27 | 2015-03-27 | Oil field shaft mouth sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204492737U true CN204492737U (en) | 2015-07-22 |
Family
ID=53572060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520184591.2U Expired - Fee Related CN204492737U (en) | 2015-03-27 | 2015-03-27 | Oil field shaft mouth sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204492737U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288568A (en) * | 2017-08-09 | 2017-10-24 | 王洪绪 | A kind of Multifunctional well head sealer |
| CN107795295A (en) * | 2017-11-03 | 2018-03-13 | 东北石油大学 | A kind of well head adjustable energy-storing seals blowout hookup |
| CN109779559A (en) * | 2018-12-11 | 2019-05-21 | 中国石油天然气股份有限公司 | A kind of rod-pumped well packing box sealing particle |
-
2015
- 2015-03-27 CN CN201520184591.2U patent/CN204492737U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288568A (en) * | 2017-08-09 | 2017-10-24 | 王洪绪 | A kind of Multifunctional well head sealer |
| CN107288568B (en) * | 2017-08-09 | 2023-05-23 | 山东宏丰智能装备有限公司 | Multifunctional wellhead sealer |
| CN107795295A (en) * | 2017-11-03 | 2018-03-13 | 东北石油大学 | A kind of well head adjustable energy-storing seals blowout hookup |
| CN109779559A (en) * | 2018-12-11 | 2019-05-21 | 中国石油天然气股份有限公司 | A kind of rod-pumped well packing box sealing particle |
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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 |
Granted publication date: 20150722 Termination date: 20160327 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |