CN204804765U - Reducing valve for oil well wellhead - Google Patents
Reducing valve for oil well wellhead Download PDFInfo
- Publication number
- CN204804765U CN204804765U CN201520581605.4U CN201520581605U CN204804765U CN 204804765 U CN204804765 U CN 204804765U CN 201520581605 U CN201520581605 U CN 201520581605U CN 204804765 U CN204804765 U CN 204804765U
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- China
- Prior art keywords
- valve body
- valve
- diameter
- oil well
- reducing valve
- 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.)
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Abstract
The utility model discloses a reducing valve for oil well wellhead, it includes valve body, case and valve rod, the valve body includes valve body and lower valve body, a serial communication port, the internal diameter of valve body inner chamber is the same, goes up valve body ring flange quotation diameter and is less than valve body ring flange quotation diameter down. The utility model discloses can reduce construction cost, improve the efficiency of construction, in addition, also reduce latent maintenance node.
Description
Technical field
The utility model relates to oilfield machinery technical field, specifically a kind of well mouth of oil well reducing valve.
Background technology
Current horizontal well gets more and more, and horizontal segment oil reservoir can reach km, and after acid fracturing, OIH gas can rise to well head very soon, causes difficulty to the high pressure rising pipe nipple of dismounting pressure break and Φ 130-70MPa high pressure valve.On the other hand, after dismounting high pressure raises pipe nipple and high pressure valve, need to load onto low pressure (21MPa) in time and raise pipe nipple and 21MPa-Φ 130 valve, otherwise also cannot completion.In prior art, no matter be high pressure valve or low pressure valve, due to the problem of installation site, general needs install conversion diameter changing nipple additional to realize smooth connection, this not only adds cost, also reduce efficiency of construction, in addition, potential maintenance node is also made to become more.
Utility model content
The purpose of this utility model will provide a kind of well mouth of oil well reducing valve exactly, to reduce costs, improves efficiency of construction, in addition, decreases potential maintenance node.
The utility model is achieved in that
Well mouth of oil well reducing valve, comprises valve body, spool and valve rod, and described valve body comprises upper valve body and lower valve body, and the internal diameter of described body cavity is identical, and upper valve body flange card diameter is less than lower valve flange dish card diameter.
Described upper valve body flange port inner diameter is less than lower valve flange dish port inner diameter.
The utility model adopts this structure, when it is for well head, directly can be installed on well head, and without the need to installing conversion diameter changing nipple again additional, have both reduced cost, improve efficiency of construction, also reduce potential maintenance node.
Accompanying drawing explanation
Fig. 1 is the structural representation of well mouth of oil well reducing valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described
Shown in Fig. 1, a kind of well mouth of oil well reducing valve, comprises valve body, spool 6 and valve rod 5.Valve body comprises upper valve body 1 and lower valve body 4, and described body cavity 7 is straight tube shape.The card diameter of upper valve body 1 flange 2 is less than lower valve flange dish 3 card diameter.Upper valve body flange can be identical with the internal diameter of the port of lower valve flange dish, also can be different, and the real needs according to its two end connection design.Generally, large lower valve flange dish port 8 internal diameter of card diameter is also comparatively large, and correspondingly, little upper valve body flange port 9 internal diameter of card diameter also less (with reference to figure 1).
The utility model is used for well construction, construction cost cost can be reduced, improve efficiency of construction, in addition, decrease potential maintenance node.
Claims (2)
1. a well mouth of oil well reducing valve, comprises valve body, spool and valve rod, and described valve body comprises upper valve body and lower valve body, and it is characterized in that, the internal diameter of described body cavity is identical, and upper valve body flange card diameter is less than lower valve flange dish card diameter.
2. well mouth of oil well reducing valve according to claim 1, is characterized in that, described upper valve body flange port inner diameter is less than lower valve flange dish port inner diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520581605.4U CN204804765U (en) | 2015-08-05 | 2015-08-05 | Reducing valve for oil well wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520581605.4U CN204804765U (en) | 2015-08-05 | 2015-08-05 | Reducing valve for oil well wellhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204804765U true CN204804765U (en) | 2015-11-25 |
Family
ID=54589607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520581605.4U Active CN204804765U (en) | 2015-08-05 | 2015-08-05 | Reducing valve for oil well wellhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204804765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101891A (en) * | 2019-02-19 | 2020-05-05 | 大庆市富隆达石油工程机械设备有限公司 | Valve for oil well |
-
2015
- 2015-08-05 CN CN201520581605.4U patent/CN204804765U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101891A (en) * | 2019-02-19 | 2020-05-05 | 大庆市富隆达石油工程机械设备有限公司 | Valve for oil well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |