CN2471924Y - Sampling valve on hole top - Google Patents
Sampling valve on hole top Download PDFInfo
- Publication number
- CN2471924Y CN2471924Y CN 01207605 CN01207605U CN2471924Y CN 2471924 Y CN2471924 Y CN 2471924Y CN 01207605 CN01207605 CN 01207605 CN 01207605 U CN01207605 U CN 01207605U CN 2471924 Y CN2471924 Y CN 2471924Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- sampling valve
- tail
- stifled
- 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
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Abstract
The utility model relates to a wellhead sampling valve; wherein, the valve body is a cylindrical housing, which is provided with a stepped long hole inside; a valve core supported by a spring blocks the internal small port of the stepped hole at one end of the valve body; the other end of the spring is supported by the stopper fixed at the big port of the stepped hole in the valve body. The utility model has the advantages of having simple structure, not only sampling the oil conveniently, but also preventing general lawbreakers from stealing the oil.
Description
The utility model relates to a kind of wellhead sampling valve.
Oil sample will constantly be taked in process of production in each oil field, analyzes, so that the stratum oil sources is judged in safe and rational production truly, therefore, wants mounted valve at the well casing mouth of conveying crude oil, so that sampling frequently.Because at present the valve of installing mostly is a common valve, the lawless person often opens the valve stolen, makes us hard to guard against, so each oil field all will be subjected to tremendous economic loss every year.The oil field that the has dead this common valve of having to take to weld, cancellation stratum crude oil sample analysis.Do to such an extent that the result is that oil well is analyzed distortion, Error Diagnostics strengthens like this, give the normal a series of problem of bringing of producing.
The purpose of this utility model is to improve the shortcoming of prior art and the wellhead sampling valve that provides a place to prevent stolen, to replace common valve, realizes antitheft sampling.
For achieving the above object, the utility model is taked following design scheme, valve body is a cylindrical shell, has the stairstepping slotted hole in it, a spool is supported on and blocks on the spring at the little inn of valve body one end stairstepping, described spring at the valve body internal support on the tail that is fixed on valve body other end stairstepping macropore is stifled.Described tail is stifled can be the screwed annulus that collar, bayonet lock or employing are spirally connected.Valve body has the stifled inner cylindrical of tail and is processed with screw thread, so as with the well tubular wall sealing and fixing that is spirally connected.Certainly more further solid welding.Described spool is spherical, conical or is fixed with the T shape cylinder of sealing ring.The outer end of valve body is provided with draw-in groove, bayonet lock or the screw thread that can be connected with special sampler, so that be connected and fixed with special sampler.
Its operating principle is, special sampler is fixed on the wellhead sampling valve, push rod on the special sampler stretches into roof pressure spool in the valve body, the spring pressurized of supporting spool shrinks, spool leaves, and the crude oil in the oil pipe sprays under pressure, sprays in the container of sampler, remove the push rod of sampler, the spring in the valve body promotes spool shutoff sample valve immediately.
The utility model is simple in structure, can draw oil sample easily, can prevent general lawless person's stolen again.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present utility model
Fig. 2 is a valve body outer end bayonet lock structural representation
Fig. 3 is the helicitic texture schematic diagram for having T type spool and valve body outer end
Embodiment 1
As shown in Figure 1, the utility model valve body 1 is a cylindrical shell, have 2, one spools 3 of stairstepping slotted hole in it and be bearing in stairstepping aperture 21 internal orifices that block on the spring 4 at valve body 1, described spring blocks up on 5 in the tail that is fixed on valve body other end stairstepping macropore 22 at the valve body internal support.Described tail is stifled to be a collar.The cylindrical that has stifled 5 ends of tail of valve body 1 is processed with screw thread 11, so as with the well tubular wall sealing and fixing that is spirally connected.Described spool is spherical.The outer end of valve body is provided with a draw-in groove 12 that can be connected with special sampler, so that be connected with special sampler.
Embodiment 2
Be provided with a bayonet lock 13 that can be connected with special sampler in the outer end of valve body 1, other structure is identical with embodiment 1.
Have one to be T type cylinder spool 3 ' in valve body 1, be with sealing ring 6 on it, the valve body outer end is provided with the thread segment 14 that is connected with special sampler, and other structure is identical with embodiment 1.
Claims (4)
1, a kind of wellhead sampling valve, it is characterized in that: valve body is a cylindrical shell, have the stairstepping slotted hole in it, a spool is supported on and blocks on the spring at the little inn of valve body one end stairstepping, described spring at the valve body internal support on the tail that is fixed on valve body other end stairstepping macropore is stifled.
2, wellhead sampling valve according to claim 1 is characterized in that: described tail is stifled to be the screwed annulus that collar, bayonet lock or employing are spirally connected.
3, wellhead sampling valve according to claim 1 is characterized in that: described valve body has the stifled inner cylindrical of tail screw thread, and the other end is provided with draw-in groove, bayonet lock or screw thread.
4, wellhead sampling valve according to claim 1 is characterized in that: described spool is for spherical, taper shape, or have the T type cylinder of sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01207605 CN2471924Y (en) | 2001-03-16 | 2001-03-16 | Sampling valve on hole top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01207605 CN2471924Y (en) | 2001-03-16 | 2001-03-16 | Sampling valve on hole top |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2471924Y true CN2471924Y (en) | 2002-01-16 |
Family
ID=33627943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01207605 Expired - Fee Related CN2471924Y (en) | 2001-03-16 | 2001-03-16 | Sampling valve on hole top |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2471924Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879228A (en) * | 2012-10-29 | 2013-01-16 | 宁波电业局 | Method for sampling oil |
-
2001
- 2001-03-16 CN CN 01207605 patent/CN2471924Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879228A (en) * | 2012-10-29 | 2013-01-16 | 宁波电业局 | Method for sampling oil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |