CN201934080U - Oil outlet cross for preventing pressure-holding damage - Google Patents
Oil outlet cross for preventing pressure-holding damage Download PDFInfo
- Publication number
- CN201934080U CN201934080U CN2010206172723U CN201020617272U CN201934080U CN 201934080 U CN201934080 U CN 201934080U CN 2010206172723 U CN2010206172723 U CN 2010206172723U CN 201020617272 U CN201020617272 U CN 201020617272U CN 201934080 U CN201934080 U CN 201934080U
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- pressure
- pipeline
- oil
- main body
- steel ball
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Abstract
The utility model discloses an oil outlet cross for preventing pressure-holding damage, which is used for a Christmas tree of an oil well and mainly increases the automatic pressure relief function and can prevent the damage caused by pressure holding in the oil well besides all the functions of the tee and the cross of the traditional Christmas tree. The oil outlet cross consists of a cross main body, a sealing steel ball, a pressure spring and a pressure regulating jack screw, wherein the cross main body consists of pipelines which are communicated in four directions; the upper and lower pipelines and one horizontal pipeline are straight pipelines and the other one horizontal pipeline is a reducing pressure relief pipeline; and the sealing steel ball, the pressure spring and the pressure regulating jack screw are sequentially connected.
Description
Affiliated technical field:
The utility model relates to the well head production tree with going out four-way junction of oil, and particularly a kind of anti-infringement type that builds the pressure goes out four-way junction of oil.
Technical background:
In a lot of oil district Production Wells, normal take place as pipeline obstruction, fault gate or lawless person deliberately destroy situations such as the dead gate in pass, cause build the pressure in the producing well pit shaft too high, damage the well head flow process and blowout takes place, even suppress bad underground equipment, and cause oil well to stop production, economic loss is serious.General Rodless oil extraction well is installed out four-way junction of oil on four-way junction of casing or above the master valve, how pumpingh well installs threeway herein, in the past three can and four-way only flow the pipeline that pipeline and sucker rod move up and down as oil, do not have other function.
Summary of the invention:
The generation that can occur building the pressure in the well wellbore and cause device damage, environment pollution and influence the oil well production situation in the oil well production process, the utility model provides a kind of anti-infringement type that builds the pressure to go out four-way junction of oil, this anti-infringement type that builds the pressure goes out four-way junction of oil has increased the automatically unloading function on the function basis of existing threeway and four-way, can effectively avoid the well wellbore internal cause to suppress high pressure causes damage, the economic loss of avoiding device damage to cause, avoid the initial ring environment pollution, guaranteed normal, the cleaner production of oil well.
The technical scheme that its technical problem that solves the utility model adopts is: this anti-infringement type that builds the pressure goes out four-way junction of oil and is made up of four-way main body, sealed steel ball, holddown spring, pressure regulation jackscrew.Its four-way main body is made up of the pipeline that is interconnected on the four direction, and two and a horizontal pipeline are direct piping up and down, and be identical with three pipelines of existing threeway; The release pipeline that another horizontal internal diameter of the pipeline is a reducing, and be sealed in the reducing place from outside to inside by sealed steel ball, the compacted spring compression of sealed steel ball, the other end of holddown spring is controlled its pressure to sealed steel ball by the pressure regulation jackscrew.The end of this pipeline can be connected with the sleeve pipe of oil well by pipe string; in process of production; oil-air pressure in well wellbore raises; and when acting on pressure on the sealed steel ball greater than holddown spring pressure; sealed steel ball is backed down the provisional sealing function that loses; oil gas will enter the sleeve pipe of oil well by the pressure regulation jackscrew of hollow, external pipeline, thereby reduces the pressure in the well wellbore, reaches the effect of unloading pressure protection.When returning to normal pressure (being that the pressure of oil-gas reactivation on sealed steel ball is less than holddown spring pressure) in the well wellbore, sealed steel ball reseals pipeline under the effect of holddown spring, recovers the ordinary production of oil well.
The beneficial effects of the utility model are, can effectively prevent the too high infringement that causes well head flow sheet equipment and underground equipment of well wellbore internal pressure, avoid the pollution and the economic loss that therefore cause.
Description of drawings:
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is a main sectional view of the present utility model.
1. four-way main bodys among the figure, 2. sealed steel ball, 3. holddown spring, 4. pressure regulation jackscrew.
The specific embodiment:
Among the figure, four-way main body (1) is a body that cross passes through mutually, and four terminations are connected with other accessories on the production tree respectively by clip, screw thread in produce using, and wherein termination (A) is connected with the top polished rod sealer; Termination (B) is connected with the bottom well head; Termination (C) produces gate with an adnation or flow line is connected; Termination (D) is connected with the sleeve pipe of oil well by pipe string.The inner chamber of four-way main body (1) is the pipeline that is interconnected on the four direction, and termination (A) (B) (℃) be direct piping on three directions, (D) direction upside is a tapered pipeline that internal diameter changes from small to big and in the termination, there is internal thread the termination of this pipeline, can cooperate with the external screw thread of pressure regulation jackscrew (4), rotation pressure regulation jackscrew (4) can be regulated its pressure to holddown spring (3), and pressure is passed to sealed steel ball (2) by holddown spring (3), make sealed steel ball (2) can be sealed in reducing place in the pipeline from outside to inside.When oil well breaks down when having suppressed high pressure and having acted on pressure on the sealed steel ball (2) greater than the pressure of holddown spring (3) aborning, holddown spring (3) is compressed, sealed steel ball (2) is backed down and the provisional sealing function that loses, high-pressure oil gas just can by the central duct of pressure regulation jackscrew (4) and (D) end external pipeline be discharged in the sleeve pipe of oil well, thereby reach the purpose of release, avoid simultaneously polluting; After the pit shaft internal pressure was reduced to normal value, the thrust of holddown spring (3) can make sealed steel ball (2) reseal this pipeline, can recover original ordinary production state automatically.
Claims (3)
1. the anti-infringement type that builds the pressure goes out four-way junction of oil, form by four-way main body, sealed steel ball, holddown spring, pressure regulation jackscrew, it is characterized in that: two pipeline and transversely the pipeline of four-way main body on vertically is direct piping, and another horizontal pipeline is a tapered pipeline, and sealed steel ball, holddown spring, pressure regulation jackscrew are linked in sequence in this tapered pipeline.
2. the anti-infringement type that builds the pressure according to claim 1 goes out four-way junction of oil, and it is characterized in that: the intracavity diameter of a tapered pipeline in the four-way main body changes from small to big from inside to outside, and there is internal thread at inner chamber external end head place.
3. the anti-infringement type that builds the pressure according to claim 1 goes out four-way junction of oil, it is characterized in that: there is external screw thread at pressure regulation jackscrew center for straight-through duct on the external diameter, can with the screw-internal thread fit of the tapered pipeline inner chamber of four-way main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206172723U CN201934080U (en) | 2010-10-24 | 2010-10-24 | Oil outlet cross for preventing pressure-holding damage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206172723U CN201934080U (en) | 2010-10-24 | 2010-10-24 | Oil outlet cross for preventing pressure-holding damage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934080U true CN201934080U (en) | 2011-08-17 |
Family
ID=44445602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206172723U Expired - Fee Related CN201934080U (en) | 2010-10-24 | 2010-10-24 | Oil outlet cross for preventing pressure-holding damage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934080U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856234A (en) * | 2021-03-01 | 2021-05-28 | 西安奥腾石油工程技术服务有限公司 | High-pressure pipeline assembly |
| CN114934755A (en) * | 2022-07-25 | 2022-08-23 | 帕特恩(大庆)石油科技有限公司 | Composite particle sealing device for oil pumping unit wellhead and use method thereof |
-
2010
- 2010-10-24 CN CN2010206172723U patent/CN201934080U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856234A (en) * | 2021-03-01 | 2021-05-28 | 西安奥腾石油工程技术服务有限公司 | High-pressure pipeline assembly |
| CN112856234B (en) * | 2021-03-01 | 2024-03-29 | 西安奥腾石油工程技术服务有限公司 | High-pressure pipeline assembly |
| CN114934755A (en) * | 2022-07-25 | 2022-08-23 | 帕特恩(大庆)石油科技有限公司 | Composite particle sealing device for oil pumping unit wellhead and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20121024 |