CN201517394U - Anti-theft blocking-removing check valve of oil production well head - Google Patents
Anti-theft blocking-removing check valve of oil production well head Download PDFInfo
- Publication number
- CN201517394U CN201517394U CN200920224225XU CN200920224225U CN201517394U CN 201517394 U CN201517394 U CN 201517394U CN 200920224225X U CN200920224225X U CN 200920224225XU CN 200920224225 U CN200920224225 U CN 200920224225U CN 201517394 U CN201517394 U CN 201517394U
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- plugging
- seat
- valve
- ball
- oil
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Abstract
The utility model relates to an anti-theft blocking-removing check valve of an oil production well head, which comprises a three-way valve body, wherein an oil drainage check valve is arranged in a liquid through hole formed at the lower part of a straight through pipe of the valve body, a blocking-removing check valve is arranged in the upper part of the valve body, and an anti-theft stopper is connected at the top through a thread. The anti-theft blocking-removing check valve can effectively prevent crude oil of a ground pipeline from being stolen, ensure the normal operation of the oil well production and the pipeline transportation, and simultaneously realize the functions of no pressure leakage and dredging when an oil pipeline is blocked, thereby greatly improving the blocking-removing operation efficiency and having the advantages of simple structure, convenient use, low cost, no corrosion, easy maintenance, reliable work, long service life and the like.
Description
Technical field
The utility model belongs to oilfield head valve technical field, specifically is the antitheft de-plugging ball-and-seat of production wellhead that a kind of suitable oil well mouth uses.
Background technology
In known exploitation technology, normally the flow line with the well head production tree directly is communicated with crude oil gathering pipelines, controls production by the valve that is installed on the flow line.After oil well stops well,, cause extraction crude oil to flow back in the well and form and pour in down a chimney often because of reasons such as downhole tool leakages; On the other hand, oil pumping polish rod occurs and break when taking off, the crude oil in the surface gathering and transferring pipeline flows backwards easily and sprays from packing box.Cause the crude oil loss for fear of these situations, the way in each oil field is that a ball-and-seat is installed on the well mouth of oil well flow line at present, to prevent the backflow of crude oil.But this ball-and-seat function singleness lost efficacy easily, and easy-maintaining not.Particularly higher when the crude oil content of wax of extraction, viscosity is bigger, when causing crude oil gathering pipelines to stop up, carries out very trouble of pipeline mediation.In addition,, be installed in and produce between valve and the back pressure valve or produce the valve place, be difficult to prevent the stolen phenomenon generation that refluxes of crude oil in the crude oil gathering pipelines of ground because ball-and-seat adopts flange to connect more.
The utility model content
The purpose of this utility model provides a kind of crude oil pipeline and stops up mediation conveniently, can prevent that crude oil refluxes, and theftproof performance is good, and rational in infrastructure, and is easy to use, the antitheft de-plugging ball-and-seat of the production wellhead of good reliability.
Realize that the technical scheme that the purpose of this utility model is taked is: this valve has a triple-valve body, is provided with the oil extraction ball-and-seat in the through hole of valve body straight pipe bottom, is provided with the de-plugging ball-and-seat in the upper body, and at its top by the antitheft shutoff that has been threaded.
Described de-plugging ball-and-seat is made up of de-plugging valve seat, de-plugging valve ball, spring base and spring, wherein, spring base is installed on the bottom of de-plugging valve seat by screw thread, the de-plugging valve seat is connected with the triple-valve body inner thread, the de-plugging valve ball is sat by spring and is put on spring base, the top of de-plugging valve seat is provided with the de-plugging valve ball and cooperates the intake tunnel hole that contacts, and its top end face is provided with and is used for the handling instrument jack, and spring base is provided with at least 2 above water stream channel holes.
Described triple-valve body straight pipe is an irregular bent limit through hole with the interface position that is communicated with of side siphunculus.
Be provided with the opener jack in the described screws valve for preventing illagel application and with the eccentric boss of eccentric groove.
The antitheft de-plugging ball-and-seat of making according to such scheme of production wellhead, dual-use function with well head ball-and-seat and back-pressure valve, not only can save the well head gate, and can remove the valve handle of exposure, and hidden screws valve for preventing illagel application by installing additional, can prevent effectively that the crude oil of surface line is stolen, guarantee the normal operation of oil well production and line transportation.Simultaneously, when petroleum pipeline takes place to stop up, can realize not pressure release mediation function, improve the de-plugging operating efficiency greatly.This ball-and-seat also has simple in structure, and is easy to use, advantages such as cost is low, not corrosion, easy care, reliable operation, long service life.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Referring to Fig. 1, the antitheft de-plugging ball-and-seat of production wellhead of the present utility model, comprise triple-valve body 3, de-plugging ball-and-seat and oil extraction ball-and-seat, wherein, the de-plugging ball-and-seat is positioned at the top of triple-valve body 3 straight pipes, is made up of de-plugging valve seat 11, de-plugging valve ball 12, compression spring 13 and spring base 14, de-plugging valve seat 11 is connected with triple-valve body 3 straight pipe inner threads, the top is provided with into water through hole 6, and top end face is provided with handling instrument jack 5, is used for the dismounting of de-plugging valve seat 11.Spring base 13 is installed on the bottom of de-plugging valve seat 11 by screw thread, and de-plugging valve seat 11 is connected with triple-valve body 3 straight pipe inner threads, is laid with at least 2 above water stream channel holes 4 on it.De-plugging valve ball 12 is positioned at the cavity of de-plugging valve seat 11, and puts on spring base 14 by compression spring 13 seats, and its top touches mutually with water inlet through hole 6.The oil extraction ball-and-seat is positioned at the bottom of triple-valve body 3, form by oil extraction valve ball 2 and foot valve seat 1, foot valve seat 1 is fixedlyed connected with the straight pipe of triple-valve body 3, also can make integrative-structure with straight pipe, its centre is provided with oil drain passage hole 17, and oil extraction valve ball 2 is sat and put at the top of foot valve seat 1, touches mutually with oil drain passage hole 17, and can freely move up and down, realize the keying of oil extraction ball-and-seat.The side siphunculus 16 of triple-valve body 3 is corresponding with the position between de-plugging ball-and-seat and the oil extraction ball-and-seat, and the oil outlet of offering by triple-valve body 3 straight pipe sidepieces 15 is connected, in order to prevent the obstruction of 2 pairs of oil outlets 15 of oil extraction valve ball, described oil outlet 15 adopts irregular bent limit through-hole structure.Top at triple-valve body 3 straight pipes, by screw thread screws valve for preventing illagel application 10 is housed, the top of this screws valve for preventing illagel application 10 is provided with opener jack 9 and with the eccentric boss 7 of eccentric groove 8, must adopt special-purpose opener can carry out the dismounting of screws valve for preventing illagel application, can prevent that thus not operation personnel's unrest from tearing open or stealing and tear open.
Operating principle: the antitheft de-plugging ball-and-seat of production wellhead of the present utility model in use, foot valve seat 1 vertically-arranged can be fixedly mounted or is welded to connect oil outlet end at the well head flowline, the side siphunculus 16 of the antitheft ball-and-seat of de-plugging is connected with crude oil gathering pipelines, can produces.When the oil well ordinary production, because the buoyancy when fluid flows moves up oil extraction valve ball 2, fluid promptly enters in the straight pipe of triple-valve body 3 from the gap between the oil drain passage hole 17 of oil extraction valve ball 2 and foot valve seat 1, and enter side siphunculus 16 by the oil outlet 15 of straight pipe sidepiece, deliver to measuring station through crude oil gathering pipelines again.At this moment, the fluid that enters in the straight pipe can flow into the cavity of de-plugging valve seat 11 from the water stream channel hole 4 of spring base 14, but because de-plugging valve ball 12 makes the intake tunnel hole 6 of de-plugging valve seat 11 be in closed condition under the pressure of compression spring 13, fluid can not released by intake tunnel hole 6.When fluid buoyancy was pushed into oil outlet 15 positions than senior general's oil extraction valve ball 2, because oil outlet 15 adopts irregular bent limit through-hole structure, fluid still can be discharged from the oil extraction valve ball 2 and the slit of oil outlet 15 sidepieces, oil outlet 15 cloggings can not occur.
When oil well stopped production or crude oil gathering pipelines inner fluid pressure occurs and go out oil pressure greater than well head, oil extraction valve ball 2 was closed the oil extraction ball-and-seat rapidly under himself action of gravity, can prevent the backflow of extraction fluid.
When crude oil gathering pipelines stops up, in the time of need carrying out de-plugging, oil well need not be with well head emptying release after stopping to recover the oil, as long as lay down screws valve for preventing illagel application 10 with special tool, and connection setting-out pipeline, current can be pushed to de-plugging valve ball 12 move down by the intake tunnel hole 6 of de-plugging valve seat 11, the de-plugging ball-and-seat is opened, water stream channel hole 4 on spring base 13 enters in the straight pipe of triple-valve body 3, and oil extraction valve ball 2 pressed to move down, the oil extraction ball-and-seat is closed, and hydraulic pressure is dredged crude oil gathering pipelines thus.
Under oil well ordinary production state, because screws valve for preventing illagel application 10 can only just can be laid down with the opener of special use, therefore can prevent pirate of the open effectively, avoid the stolen loss of crude oil.
Claims (4)
1. antitheft de-plugging ball-and-seat of production wellhead, it is characterized in that: realize that the technical scheme that the purpose of this utility model is taked is: this valve has a triple-valve body, be provided with the oil extraction ball-and-seat in the liquid through-hole of valve body straight pipe bottom, be provided with the de-plugging ball-and-seat in the upper body, and at its top by the antitheft shutoff that has been threaded.
2. the antitheft de-plugging ball-and-seat of production wellhead according to claim 1, it is characterized in that: described de-plugging ball-and-seat is made up of de-plugging valve seat, de-plugging valve ball, spring base and spring, wherein, the de-plugging valve seat all is connected with the triple-valve body inner thread with spring base, the de-plugging valve ball is sat by spring and is put on the de-plugging valve seat, the top of de-plugging valve seat is provided with the de-plugging valve ball and cooperates the intake tunnel hole that contacts, and its top end face is provided with and is used for the handling instrument jack, and spring base is provided with a plurality of water stream channels hole.
3. the antitheft de-plugging ball-and-seat of production wellhead according to claim 1 is characterized in that: described triple-valve body straight pipe is an irregular bent limit through hole with the interface position that is communicated with of side siphunculus.
4. the antitheft de-plugging ball-and-seat of production wellhead according to claim 1 is characterized in that: be provided with the opener jack in the described screws valve for preventing illagel application and with the eccentric boss of eccentric groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920224225XU CN201517394U (en) | 2009-10-19 | 2009-10-19 | Anti-theft blocking-removing check valve of oil production well head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920224225XU CN201517394U (en) | 2009-10-19 | 2009-10-19 | Anti-theft blocking-removing check valve of oil production well head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517394U true CN201517394U (en) | 2010-06-30 |
Family
ID=42498116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920224225XU Expired - Fee Related CN201517394U (en) | 2009-10-19 | 2009-10-19 | Anti-theft blocking-removing check valve of oil production well head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201517394U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017059A (en) * | 2012-12-21 | 2013-04-03 | 浙江吉利汽车研究院有限公司杭州分公司 | Car light structure having waterproofing and antifogging functions |
| CN104775784A (en) * | 2015-03-11 | 2015-07-15 | 徐占有 | Oil field wellhead device and pressureout prevention device for Christmas tree |
| CN106285558A (en) * | 2016-11-01 | 2017-01-04 | 李喜庆 | Production wellhead guard against theft oil stop valve |
| CN107270004A (en) * | 2016-04-08 | 2017-10-20 | 株式会社万都 | Stream formation structure |
| CN113586770A (en) * | 2021-08-27 | 2021-11-02 | 北京航空航天大学宁波创新研究院 | Pipe joint structure for reverse flow interception |
-
2009
- 2009-10-19 CN CN200920224225XU patent/CN201517394U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017059A (en) * | 2012-12-21 | 2013-04-03 | 浙江吉利汽车研究院有限公司杭州分公司 | Car light structure having waterproofing and antifogging functions |
| CN103017059B (en) * | 2012-12-21 | 2015-12-23 | 浙江吉利汽车研究院有限公司杭州分公司 | A kind of Vehicle lamp structure with waterproof, anti-fog function |
| CN104775784A (en) * | 2015-03-11 | 2015-07-15 | 徐占有 | Oil field wellhead device and pressureout prevention device for Christmas tree |
| CN104775784B (en) * | 2015-03-11 | 2017-05-10 | 徐占有 | Oil field wellhead device and pressureout prevention device for Christmas tree |
| CN107270004A (en) * | 2016-04-08 | 2017-10-20 | 株式会社万都 | Stream formation structure |
| US10655773B2 (en) | 2016-04-08 | 2020-05-19 | Mando Corporation | Structure for forming fluid path |
| CN107270004B (en) * | 2016-04-08 | 2021-01-01 | 株式会社万都 | Flow path forming structure |
| CN106285558A (en) * | 2016-11-01 | 2017-01-04 | 李喜庆 | Production wellhead guard against theft oil stop valve |
| CN113586770A (en) * | 2021-08-27 | 2021-11-02 | 北京航空航天大学宁波创新研究院 | Pipe joint structure for reverse flow interception |
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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: 20100630 Termination date: 20101019 |