CN2906041Y - Water injection well head device - Google Patents
Water injection well head device Download PDFInfo
- Publication number
- CN2906041Y CN2906041Y CN 200620086376 CN200620086376U CN2906041Y CN 2906041 Y CN2906041 Y CN 2906041Y CN 200620086376 CN200620086376 CN 200620086376 CN 200620086376 U CN200620086376 U CN 200620086376U CN 2906041 Y CN2906041 Y CN 2906041Y
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- CN
- China
- Prior art keywords
- valve
- gate valve
- bearing
- utility
- 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 - Lifetime
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Abstract
The utility model relates to an oilfield wellhead device, in particular to a wellhead water injection device. The technical proposal is that the utility model comprises an oil tube head assembly, a four-way pass and a gate valve, wherein the gate valve consists of a valve body , a valve base, a valve core, a valve bar, a stem nut, a bearing, a bearing gland, a hand wheel and a hand wheel fixture. It is characterized in that the a throttle valve is connected to the gate valve which is horizontal with respect to the four-way pass; the bearing of the gate valve is a thrust bearing and an oil injection cup or an oil injection spout is arranged in the radial direction on the binding site of the bearing and the gate valve; Annular seal grooves which work together with the seal rings to seal the binding site, are arranged at the inlet end and the outlet end of the gate valve. The utility model introduces a novel gate valve which has high pressure resistant and corrosion resistant, therefore the overall performance of high pressure resistance and sealing performance of the wellhead device is improved. The utility model can save labour and is easy to operate and can be applied to various wellhead injection device.
Description
Technical field
The utility model relates to a kind of oil field shaft mouth device, specifically is a kind of water injection well device.
Background technology
The wellhead assembly in oil field comprises that mainly the bottom big four is formed the tubing head assembly and the little four-way in top, gate valve are formed at present.Under the well head pressure condition with higher, gate valve commonly used and gate valve and four-way connected mode be the requirement of incompatibility pressure raising, and parts wear is very fast, poor corrosion resistance, and life cycle is shorter, causes cost of production higher.This application people in first to file a kind of water injection well valve (patent No. 03216107), comprise valve body, valve seat, valve gap, spool, valve rod, valve stem nut, bearing, bearing gland, handwheel and handwheel fixture composition, and improved corrosion resistance and high strength selecting for use of material, be applied to wellhead assembly obtain can be good effect.But make handwheel rotate to be critical because bearing portions lacks pump nozzle, and the end face that the import and export of gate valve are connected with four-way lacks sealing device, cause supportingly when using with the water injection well device, joint is appearance leakage easily under high-pressure situations.
Summary of the invention
The purpose of this utility model is exactly the defective that exists at prior art, and a kind of water injection well device of high pressure resistant, high-seal is provided.
Its technical scheme is: comprise tubing head assembly, four-way and gate valve composition, gate valve comprises valve body, valve seat, valve gap, spool, valve rod, valve stem nut, bearing, bearing gland, handwheel and handwheel fixture composition, it is characterized in that: the four-way level to a gate valve on also be connected with choke valve, the bearing of described gate valve is a thrust bearing, and radially is provided with forced filling oil cup or Pressure oil nipple in the joint portion of bearing and valve gap.Import and export end face at gate valve is provided with annular seal groove, cooperates the docking port position to implement sealing with sealing ring.
The utility model makes wellhead assembly integral body improve barotolerance and high-seal owing to adopted high pressure resistant, corrosion resistant novel gate valve structure, operates more laborsavingly, more convenient, can satisfy various water injection well need for equipment.
Description of drawings
Accompanying drawing 1 is the structural representation of a kind of embodiment of the present utility model; Accompanying drawing 2 is structural representations of gate valve among Fig. 1.
The specific embodiment:
With reference to accompanying drawing 1, the four-way (also claiming little four-way) 7 on top is received by adpting flange 5, gate valve 3 in the tubing head assembly of wellhead assembly (also claiming big four) 4 tops, and other interface of large and small four-way all connects gate valve 3 by clamp connection secondary 2.The outlet of one side gate valve 3 is connected with stop valve 8 and pressure meter 9 in the bottom, and the opposite side gate valve is reserved with the mouth 1 that docks with pipeline.On both sides, top gate valve 3, be connected with pressure meter 9 and choke valve 6 respectively.
With reference to accompanying drawing 2, be provided with spool 26, valve seat 17 in the valve body 25 of gate valve, spool 26 tops connect valve rod 12.Valve gap 24 belows are connected to valve body 25, and thrust bearing 11 and valve rod nut 14 are set in the top, and are connected with bearing gland 23 by trip bolt 13.Valve rod nut 14 tops are connected with handwheel 20 by flat key, and by pad 16, locking nut 21 handwheel are fixed on the valve rod nut 14.Sealing ring 19 is arranged with its sealing in the joint portion of valve gap 24 and valve rod 12, be provided with sealing ring 18 equally with the two sealing in the joint portion of valve gap 24 and valve body 25.The position that combines with valve gap 24 at thrust bearing 11 radially is provided with forced filling oil cup 10, to improve the lubricity of valve stem nut 14, seal groove 22 is offered in import and export outer face at valve body 25, in the groove sealing ring can be set, the sealing when docking with other interface with increase.
In order further to have improved the decay resistance of gate valve, primary structure has partly adopted the alloy steel material manufacturing.This gate valve is not only applicable to production wellhead, can be applied to devices such as measuring station yet.
Claims (2)
1, a kind of water injection well device, comprise tubing head assembly, four-way and gate valve composition, gate valve comprises valve body, valve seat, valve gap, spool, valve rod, valve stem nut, bearing, bearing gland, handwheel and handwheel fixture composition, it is characterized in that: the four-way level to a gate valve on also be connected with choke valve, the bearing of described gate valve is a thrust bearing, and radially is provided with forced filling oil cup or Pressure oil nipple in the joint portion of bearing and valve gap.
2, water injection well device according to claim 1 is characterized in that: the import and export end face at gate valve is provided with annular seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620086376 CN2906041Y (en) | 2006-06-23 | 2006-06-23 | Water injection well head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620086376 CN2906041Y (en) | 2006-06-23 | 2006-06-23 | Water injection well head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2906041Y true CN2906041Y (en) | 2007-05-30 |
Family
ID=38114675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620086376 Expired - Lifetime CN2906041Y (en) | 2006-06-23 | 2006-06-23 | Water injection well head device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2906041Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967441A (en) * | 2014-04-21 | 2014-08-06 | 濮阳中石集团有限公司 | Well mouth squeezing-blocking device and application method |
-
2006
- 2006-06-23 CN CN 200620086376 patent/CN2906041Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967441A (en) * | 2014-04-21 | 2014-08-06 | 濮阳中石集团有限公司 | Well mouth squeezing-blocking device and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070530 |
|
| EXPY | Termination of patent right or utility model |