CN204252910U - Wellhead tree sealing device - Google Patents
Wellhead tree sealing device Download PDFInfo
- Publication number
- CN204252910U CN204252910U CN201420632292.6U CN201420632292U CN204252910U CN 204252910 U CN204252910 U CN 204252910U CN 201420632292 U CN201420632292 U CN 201420632292U CN 204252910 U CN204252910 U CN 204252910U
- Authority
- CN
- China
- Prior art keywords
- polished rod
- sealing device
- tree
- seating nipple
- wellhead
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 67
- 210000002445 nipple Anatomy 0.000 claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 claims abstract description 52
- 238000012856 packing Methods 0.000 abstract description 12
- 239000003129 oil well Substances 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model provides a kind of wellhead tree sealing device, comprising: production tree; Oil pipe, is connected with production tree; Seating nipple, is arranged in production tree and oil pipe; Polished rod, can be arranged in seating nipple up or down; Plunger, is connected to the lower end of polished rod and can is arranged in seating nipple up or down with polished rod; Sucker rod, is connected to the lower end of plunger.The hermetic unit of wellhead tree sealing device is the sealing between plunger and seating nipple, wellhead tree sealing device of the present utility model changes installs packing box realizes sealing structure to polished rod in the past in production tree upper end, make the sealing that it realizes polished rod in well, the metal movable sealing wearing and tearing of polished rod are little, do not need frequent replacing, reduce workload and improve oil well production timeliness and efficiency.
Description
Technical field
The utility model relates to oil field development technical field, in particular to a kind of wellhead tree sealing device.
Background technology
Take out in manufacturing process at oil machine, general dependence production tree upper end is installed packing box and is realized wellhead sealing to polished rod, along with the passing of production time, packing in packing box can little by little wear and tear until entirely ineffective, at this moment just need to change packing, often change a packing to need to carry out some and arrange loaded down with trivial details work, employee work amount is large, and affects the production time efficiency of oil well.
Utility model content
The utility model aims to provide and a kind ofly can reduce workload and improve the sealing device of oil well production timeliness and efficiency.
To achieve these goals, the utility model provides a kind of wellhead tree sealing device, comprising: production tree; Oil pipe, is connected with production tree; Seating nipple, is arranged in production tree and oil pipe; Polished rod, can be arranged in seating nipple up or down; Plunger, is connected to the lower end of polished rod and can is arranged in seating nipple up or down with polished rod; Sucker rod, is connected to the lower end of plunger.
Further, wellhead tree sealing device also comprises: tubing hanger, and the upper end of tubing hanger connects production tree, the lower end connected pipes of tubing hanger.
Further, wellhead tree sealing device also comprises: sleeve pipe, and be connected to the lower end of production tree, oil pipe is arranged in sleeve pipe.
Further, wellhead tree sealing device also comprises: polished rod centralizer, is arranged at the upper end of production tree, and polished rod is arranged in polished rod centralizer.
Further, polished rod centralizer is stretched out in the upper end of polished rod, and part sucker rod stretches out seating nipple.
Further, wellhead tree sealing device also comprises: seating nipple centralizer, is arranged between the inner surface of oil pipe and the external surface of seating nipple.
Further, seating nipple centralizer and seating nipple are for being threaded.
Further, seating nipple centralizer is positioned at the lower end of seating nipple.
Further, seating nipple centralizer is positioned at the below of plunger.
Further, production tree is double-vane production tree.
Further, sleeve pipe is connected by end flange with the lower end of production tree.
Further, polished rod centralizer is connected by upper flange with the upper end of production tree.
Further, plunger is threaded with the lower end of polished rod.
Application the technical solution of the utility model, provide a kind of wellhead tree sealing device, this wellhead tree sealing device comprises production tree, oil pipe, seating nipple, polished rod, plunger and sucker rod.Particularly, oil pipe is connected with production tree, and seating nipple is arranged in production tree and oil pipe, and polished rod can be arranged in seating nipple up or down, and plunger is connected to the lower end of polished rod and can is arranged in seating nipple up or down with polished rod.The hermetic unit of wellhead tree sealing device is the sealing between plunger and seating nipple, wellhead tree sealing device of the present utility model changes installs packing box realizes sealing structure to polished rod in the past in production tree upper end, make the sealing that it realizes polished rod in well, the metal movable sealing wearing and tearing of polished rod are little, do not need frequent replacing, reduce workload and improve oil well production timeliness and efficiency.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the sectional view of sealing device of the present utility model.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
As shown in Figure 1, the utility model provides a kind of wellhead tree sealing device, and this wellhead tree sealing device comprises production tree 10, oil pipe 20, seating nipple 30, polished rod 40, plunger 50 and sucker rod 60.
Particularly, oil pipe 20 is connected with production tree 10, seating nipple 30 is arranged in production tree 10 and oil pipe 20, and polished rod 40 can be arranged in seating nipple 30 up or down, and plunger 50 is connected to the lower end of polished rod 40 and can be arranged at up or down in seating nipple 30 with polished rod 40.
The hermetic unit of wellhead tree sealing device is the sealing between plunger 50 and seating nipple 30, wellhead tree sealing device of the present utility model changes installs packing box realizes sealing structure to polished rod in the past in production tree upper end, make the sealing that it realizes polished rod in well, the metal movable sealing wearing and tearing of polished rod 40 are little, do not need frequent replacing, thus the environment pollution that causes when preventing from changing packing, reduce workload and improve oil well production timeliness and efficiency.Wellhead tree sealing device structure of the present utility model is compact, strong adaptability, safe and convenient to use and the life-span is long.
Production tree 10 can be single-blade production tree or double-vane production tree, as shown in Figure 1, is preferably double-vane production tree.
Preferably, plunger 50 is threaded with the lower end of polished rod 40.Connect simple and reliable, dismounting and convenient maintenance and replacement.
As shown in Figure 1, wellhead tree sealing device also comprises tubing hanger 70, sleeve pipe 80, polished rod centralizer 41 and seating nipple centralizer 31.
Wellhead tree sealing device also comprises tubing hanger 70, and the upper end of tubing hanger 70 connects production tree 10, the lower end connected pipes 20 of tubing hanger 70.
Further, wellhead tree sealing device also comprises sleeve pipe 80, and sleeve pipe 80 is connected to the lower end of production tree 10, and oil pipe 20 is arranged in sleeve pipe 80.Wherein, sleeve pipe 80 is connected by end flange 90a with the lower end of production tree 10.
Further, wellhead tree sealing device also comprises polished rod centralizer 41, and polished rod centralizer 41 is arranged at the upper end of production tree 10, and polished rod 40 is arranged in polished rod centralizer 41.Wherein, polished rod centralizer 41 is connected by upper flange 90b with the upper end of production tree 10, and the effect of polished rod centralizer 41 is righting polished rods 40, and polished rod 40 is remained on the same axis with well head center in the process of moving up and down.Polished rod centralizer 41 ensure that polished rod 40 does not offset, and is positioned at its operating position.
Preferably, polished rod centralizer 41 is stretched out in the upper end of polished rod 40, and part sucker rod 60 stretches out seating nipple 30.
And then ground, wellhead tree sealing device also comprises seating nipple centralizer 31, seating nipple centralizer 31 is arranged between the inner surface of oil pipe 20 and the external surface of seating nipple 30, the effect of seating nipple centralizer 31 is righting seating nipples 30, make seating nipple 30 and well head center, plunger 50 remain on the same axis, avoid plunger 50 with seating nipple 30, eccentric wear to occur in the process of moving up and down.Seating nipple centralizer 31 ensure that seating nipple 30 does not offset, and is positioned at its operating position.
Preferably, seating nipple centralizer 31 and seating nipple 30 are for being threaded.
As shown in Figure 1, seating nipple centralizer 31 is positioned at the lower end of seating nipple 30.Further, seating nipple centralizer 31 is positioned at the below of plunger 50.
It is as follows that the utility model provides a kind of preferred embodiment:
Production tree 10 bottom of wellhead tree sealing device is by end flange 90a splicing sleeve 80, production tree 10 top connects polished rod centralizer 41 by upper flange 90b, polished rod centralizer 41 lower end is by screwed connection seating nipple 30, seating nipple 30 bottom is by screwed connection seating nipple centralizer 31, seating nipple 30 inner chamber has polished rod 40, polished rod 40 lower end is by screwed connection plunger 50, and plunger 50 lower end is by screwed connection sucker rod 60.To replace in packing box packing to the movable sealing of polished rod by wellhead tree sealing device to the metal movable sealing of polished rod, the sealing principle between the similar sucker rod pump pump barrel of sealing principle of wellhead tree sealing device and plunger.
As can be seen from the above description, the utility model the above embodiments achieve following technique effect:
The metal movable sealing wearing and tearing of the polished rod 40 in wellhead tree sealing device of the present utility model are little, do not need frequent replacing, thus the environment pollution that causes when preventing from changing packing, reduce workload and improve oil well production timeliness and efficiency.Wellhead tree sealing device structure of the present utility model is compact, strong adaptability, safe and convenient to use and the life-span is long.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (13)
1. a wellhead tree sealing device, is characterized in that, comprising:
Production tree (10);
Oil pipe (20), is connected with described production tree (10);
Seating nipple (30), is arranged in described production tree (10) and described oil pipe (20);
Polished rod (40), can be arranged in described seating nipple (30) up or down;
Plunger (50), is connected to the lower end of described polished rod (40) and can be arranged in described seating nipple (30) up or down with described polished rod (40);
Sucker rod (60), is connected to the lower end of described plunger (50).
2. wellhead tree sealing device according to claim 1, is characterized in that, described wellhead tree sealing device also comprises:
Tubing hanger (70), the upper end of described tubing hanger (70) connects described production tree (10), and the lower end of described tubing hanger (70) connects described oil pipe (20).
3. wellhead tree sealing device according to claim 1, is characterized in that, described wellhead tree sealing device also comprises:
Sleeve pipe (80), is connected to the lower end of described production tree (10), and described oil pipe (20) is arranged in described sleeve pipe (80).
4. wellhead tree sealing device according to claim 1, is characterized in that, described wellhead tree sealing device also comprises:
Polished rod centralizer (41), is arranged at the upper end of described production tree (10), and described polished rod (40) is arranged in described polished rod centralizer (41).
5. wellhead tree sealing device according to claim 4, it is characterized in that, described polished rod centralizer (41) is stretched out in the upper end of described polished rod (40), and the described sucker rod of part (60) stretches out described seating nipple (30).
6. wellhead tree sealing device according to claim 5, is characterized in that, described wellhead tree sealing device also comprises:
Seating nipple centralizer (31), is arranged between the inner surface of described oil pipe (20) and the external surface of described seating nipple (30).
7. wellhead tree sealing device according to claim 6, is characterized in that, described seating nipple centralizer (31) and described seating nipple (30) are for being threaded.
8. wellhead tree sealing device according to claim 6, is characterized in that, described seating nipple centralizer (31) is positioned at the lower end of described seating nipple (30).
9. wellhead tree sealing device according to claim 8, is characterized in that, described seating nipple centralizer (31) is positioned at the below of described plunger (50).
10. wellhead tree sealing device according to claim 1, is characterized in that, described production tree (10) is double-vane production tree.
11. wellhead tree sealing devices according to claim 3, is characterized in that, described sleeve pipe (80) is connected by end flange (90a) with the lower end of described production tree (10).
12. wellhead tree sealing devices according to claim 4, is characterized in that, described polished rod centralizer (41) is connected by upper flange (90b) with the upper end of described production tree (10).
13. wellhead tree sealing devices according to claim 1, is characterized in that, described plunger (50) is threaded with the lower end of described polished rod (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420632292.6U CN204252910U (en) | 2014-10-28 | 2014-10-28 | Wellhead tree sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420632292.6U CN204252910U (en) | 2014-10-28 | 2014-10-28 | Wellhead tree sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204252910U true CN204252910U (en) | 2015-04-08 |
Family
ID=52957230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420632292.6U Expired - Fee Related CN204252910U (en) | 2014-10-28 | 2014-10-28 | Wellhead tree sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204252910U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625973A (en) * | 2014-10-28 | 2016-06-01 | 中国石油天然气股份有限公司 | Wellhead sealing device for extracting oil |
-
2014
- 2014-10-28 CN CN201420632292.6U patent/CN204252910U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625973A (en) * | 2014-10-28 | 2016-06-01 | 中国石油天然气股份有限公司 | Wellhead sealing device for extracting oil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203655585U (en) | Long plunger type injection-production pump | |
| CN204252910U (en) | Wellhead tree sealing device | |
| CN105625973A (en) | Wellhead sealing device for extracting oil | |
| CN203670171U (en) | Annular-valve type anti-cavitation oil well pump | |
| CN202483854U (en) | Efficient oil well pump with variable diameter | |
| CN203879472U (en) | Automatic dosing device of oil well | |
| CN202579126U (en) | Novel oil well pump | |
| CN204041422U (en) | A kind of steadily durable drilling pump fluid end assembly | |
| CN204266972U (en) | A kind of multifunctional capping device | |
| CN103452821B (en) | Anti-jetting oil pump | |
| CN204283308U (en) | A kind of oil well blowout hookup | |
| CN203394716U (en) | Energy-saving oil well pump | |
| CN205638325U (en) | Universal adjusting deviation device of pumping wellhead | |
| CN202001283U (en) | Strong magnetic rod oil well pump protector | |
| CN204126882U (en) | A kind of drilling pump fluid end assembly | |
| CN201125682Y (en) | Electrothermic rod seal centralizer | |
| CN204344003U (en) | Oil well pump swimming type eccentric abrasion prevention device | |
| CN204312010U (en) | The quick self-balancing well mouth sealing device of a kind of machine water-pumping/draining gas recovery well | |
| CN204704589U (en) | A kind of polished rod of pumping well lubriator | |
| CN201826797U (en) | Anti-spouting day lighting rod sealer | |
| CN204266971U (en) | A kind of blowout preventer | |
| CN203476671U (en) | Anti-blowout oil pump | |
| CN206693947U (en) | Oil pipe centralizer | |
| CN203879440U (en) | Coal seam gas recovery wellhead equipment | |
| CN204476364U (en) | A kind of well head butterfly soiling solution environmental protection retracting device |
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: 20150408 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |