CN201180541Y - Anti-emptying anti-theft sampling valve for oil well - Google Patents
Anti-emptying anti-theft sampling valve for oil well Download PDFInfo
- Publication number
- CN201180541Y CN201180541Y CNU2008200199195U CN200820019919U CN201180541Y CN 201180541 Y CN201180541 Y CN 201180541Y CN U2008200199195 U CNU2008200199195 U CN U2008200199195U CN 200820019919 U CN200820019919 U CN 200820019919U CN 201180541 Y CN201180541 Y CN 201180541Y
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- Prior art keywords
- valve
- oil well
- oil
- sampling
- valve seat
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Abstract
The utility model provides a ventilation-free theftproof sampling valve for an oil well, belonging to a valve used in an oil well of an oil field. The valve is provided with a valve body fixed on a pipeline of the well head; the valve body is provided with a valve seat inside; one end of a spherical pole valve plug passing through the valve seat is arranged in the pipeline of the well head; the other end of the spherical pole valve plug is provided with an anti-falling pin; the outside of the spherical pole valve plug between the anti-falling pin and the valve seat is provided with a spring; and an inner cavity of a connector body which is connected with the valve body into a whole is communicated with an inner cavity of the valve body. The ventilation-free theftproof sampling valve for an oil well can be opened only by special tools, thereby greatly improving the theftproof performance. An oil sample of the pipeline of the well head can be directly taken out without ventilation, the sampling operation is convenient and high in accuracy, and causes no waste and environment pollution. The structure of the valve is reasonable, and the sampling operation efficiency is high.
Description
Technical field
The utility model provides a kind of valve, especially a kind of valve that is used on the oilfield.
Background technology
On oilfield, sample cock must be installed, to understand the firsthand information of oil well production.At present, known sample cock is made up of valve body, valve seat, spool, screw mandrel, handwheel etc.Though this valve open and close are comparatively convenient, do not have anti-theft feature, are easy to be turned on and steal crude oil by the lawless person.Sample cock has certain length, and an end is welded on the well head pipeline, and the other end has screw thread, and certain volume space is arranged between the two ends, in order to improve the accuracy of sampling quality and chemical examination, will bleed off the crude oil in this volume space during sampling earlier.In the winter time, if crude oil is viscous crude, must heats earlier and just can bleed off this part crude oil, not only can cause waste and environment pollution, sampling operation is also more loaded down with trivial details.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of oil well to exempt from the emptying anti-theft sampling valve, with convenience, the accuracy that improves its theftproof performance and sampling operation.
The utility model is to realize like this, oil well is exempted from the emptying anti-theft sampling valve, it has the valve body that is fixed on the well head pipeline, valve seat is installed in the valve body, sphere push rod spool one end that passes valve seat is positioned at the well head pipeline, the other end is equipped with locking pin, and there is spring the sphere push rod spool outside between locking pin and the valve seat, is connected with body cavity with the inner chamber of valve body all-in-one-piece connector body.
Adopt the oil well of said structure to exempt from the emptying anti-theft sampling valve, have only the unlatching of using specialist tools just can finish valve, therefore improved theftproof performance greatly.Can directly take out the oil sample in the well head pipeline, not need emptying, sampling operation is convenient, and the accuracy height can not wasted and environment pollution because of sampling causes, and is rational in infrastructure, the sampling high efficiency.
Description of drawings
Fig. 1 is the schematic diagram of the utility model structure.
Fig. 2 is the schematic diagram that is used for special opening tool construction of the present utility model.
The specific embodiment
The embodiment that provides below in conjunction with accompanying drawing illustrates concrete structure of the present utility model.
As shown in drawings, the oil well of the utility model is exempted from the emptying anti-theft sampling valve, it has the valve body 4 that is fixed on the well head pipeline 1, valve seat 3 is installed in the valve body, sphere push rod spool 6 one ends that pass valve seat are positioned at the well head pipeline, the other end is equipped with locking pin 7, and there is spring 5 the sphere push rod spool outside between locking pin and the valve seat, is connected with body cavity with the inner chamber of valve body all-in-one-piece connector body 8.
Before the sampling operation, the sphere 10 on the sphere push rod spool contacts with valve seat, and this valve is in closed condition.For improving sealing effectiveness, the contact surface of valve seat end and valve body can be the conical surface 2.
Described connector body 8 inner chambers are eccentric circular.The inner chamber of this abnormity is convenient to the cam on the special opening instrument and the insertion of cam pole, but can be prevented from arbitrarily to insert other object Open valve.
As shown in Figure 2, cylindrical shell 15 is arranged on the special opening instrument, the cylindrical shell link has revolving multipurpose snap joint 12, and support 16 is arranged in the cylindrical shell, is fixed with cam pole 17 on the support, is fixed with cam 11 on the cam pole, and there is handle 14 the cylindrical shell outside.The internal diameter of link is corresponding with the external diameter of connector body.The oil outlet end inner surface of cylindrical shell can have screw thread, so that survey tools such as connection pressure meters.Revolving multipurpose snap joint is form of structure commonly used at present, and its concrete structure and use principle no longer describe in detail.
After leading to this valve on the well head pipeline that is installed in oil well, the sphere 10 of sphere push rod spool closely contacts with ball seat under the effect of spring 5, forms sealing, and valve is in closed condition.When the needs Open valve, the link on the special opening instrument is aimed at the connector body, it is linked together special opening instrument and this valve by revolving multipurpose snap joint.At this moment, cam, cam pole are inserted in the connector intracoelomic cavity.90 ° of angles of turning handle make it drive cam rotation, and gear pushes sphere push rod spool 6 and moves forward, and makes its elastic force that overcomes spring, breaks away from valve seat.Crude oil in the well head pipeline passes valve seat from body cavity, enters the connector intracoelomic cavity, and the oil outlet end of the cylindrical shell from the special opening instrument flows out at last, finishes sampling operation.If in the oil outlet end of cylindrical shell, install survey tools such as pressure meter in advance, then can finish operations such as pressure measurement.
The position that sphere push rod spool on the valve seat 3 passes, support 16 are tower structure, so that crude oil is mobile.Sealing ring 13 is arranged, the sealing after can realizing cylindrical shell and the connector body being connected in the cylindrical shell on the special opening instrument.There is annular groove 9 outside of connector body 8, so that revolving multipurpose snap joint is installed.
Claims (2)
1, oil well is exempted from the emptying anti-theft sampling valve, it is characterized in that, it has the valve body (4) that is fixed on the well head pipeline (1), valve seat (3) is installed in the valve body, sphere push rod spool (6) one ends that pass valve seat are positioned at the well head pipeline, the other end is equipped with locking pin (7), and there is spring (5) the sphere push rod spool outside between locking pin and the valve seat, is connected with body cavity with the inner chamber of valve body all-in-one-piece connector body (8).
2, oil well as claimed in claim 1 is exempted from the emptying anti-theft sampling valve, it is characterized in that, described connector body (8) inner chamber is eccentric circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200199195U CN201180541Y (en) | 2008-03-30 | 2008-03-30 | Anti-emptying anti-theft sampling valve for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200199195U CN201180541Y (en) | 2008-03-30 | 2008-03-30 | Anti-emptying anti-theft sampling valve for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201180541Y true CN201180541Y (en) | 2009-01-14 |
Family
ID=40250042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200199195U Expired - Fee Related CN201180541Y (en) | 2008-03-30 | 2008-03-30 | Anti-emptying anti-theft sampling valve for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201180541Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482002B (en) * | 2009-02-13 | 2012-07-25 | 新疆石油管理局试油公司 | Built-in pipe lofting device |
-
2008
- 2008-03-30 CN CNU2008200199195U patent/CN201180541Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482002B (en) * | 2009-02-13 | 2012-07-25 | 新疆石油管理局试油公司 | Built-in pipe lofting device |
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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: 20090114 |