CN205977176U - Oil recovery well head production valve - Google Patents
Oil recovery well head production valve Download PDFInfo
- Publication number
- CN205977176U CN205977176U CN201620856338.1U CN201620856338U CN205977176U CN 205977176 U CN205977176 U CN 205977176U CN 201620856338 U CN201620856338 U CN 201620856338U CN 205977176 U CN205977176 U CN 205977176U
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- China
- Prior art keywords
- valve
- return
- centre bore
- valve body
- inner chamber
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- Withdrawn - After Issue
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Abstract
The utility model discloses an oil recovery well head production valve uses in adopting the oil well wellhead production procedure. This production valve includes the discharge valve body and backward flow valve body, is equipped with in the discharge valve body and is equipped with discharge valve core spring and discharge valve core in gas - liquid channel, the centre bore, be equipped with backward flow poppet spring and flow back the case in being equipped with backward flow hole, centre bore in the backward flow valve body, valve body and the discharge valve of will the flowing back body passes through bolted connection and fastening, and the discharge valve core pushes up by together with the backward flow case, is equipped with the clearance of flowing back between the inner chamber of the backward flow case and the discharge valve body and backward flow valve body. The utility model discloses installing in the well head production procedure of oil recovery well, can releasing the well head unexpected pressure that risees of defeated flow outward, prevent to have the basic function that positive conventional pattern gas discharged the single current valve simultaneously again because of finding the untimely environmental pollution incident that the crude oil seepage led to the fact in the pipeline that results in, the pump that prevents to recover the oil produces the airlock influence oil well production.
Description
Technical field
This utility model is related to the wellhead production valve of petroleum industry, and particularly a kind of production wellhead produces valve, is adopting
Use in well mouth of oil well production procedure.
Background technology
At present during production of hydrocarbons, in the set gas discharge flow process being connected with wellhead tree tree, ball-and-seat at is installed,
Carry out covering gas discharge covering ball-and-seat valve plate when atmospheric pressure is more than outer defeated process pressure and opening, with other after collecting through outer defeated flow process
It is outer defeated that the oil gas of oil well production together enters external transport pipeline.If aborning external transport pipeline or outward the valve in defeated flow process because of valve plate
Come off, the reason such as outer defeated house steward's emergency cut-off valve actuating mechanism misoperation leads to external transport pipeline to cut off, and oil well production fails and
When stop the production of hydrocarbons line pressure causing nearly uphole end is raised, crude oil seepage will occur in pressure weak part, cause
Oil spill accident.For avoiding the generation of the type event, need to develop one kind can automatically open up when above-mentioned event occurs, complete
Become the production valve of pipeline pressure release, provide the sufficient buffering crash time for processing of accident.
Content of the invention
The purpose of this utility model is for external transport pipeline accidental amputation in producing, and oil well production fails to stop in time drawing
The line pressure rising raises problem, provides a kind of production wellhead to produce valve, after above-mentioned event occurs, can automatically open up and let out
Press, solve the problems, such as that line pressure raises, it is to avoid the situation of crude oil seepage occurs in the pressure weak part of pipeline.For above-mentioned event
Process the sufficient buffering crash time be provided, it is to avoid environmental pollution, reduce production cost.
Technical solution of the present utility model is：A kind of production wellhead produces valve and includes exhaust valve and reflux inlet
Body, is provided with gas-liquid channel, centre bore built with exhaust plug spring and exhaust plug in exhaust valve；It is provided with back in return valve body
Discharge orifice, centre bore are built with return spool spring and return spool；Return valve body and exhaust valve are bolted and tightly
Gu, exhaust plug is provided with back between return spool and exhaust valve and the inner chamber of return valve body together with being leaned with return spool
Ebb interval.
Compared with prior art, notable using effect of the present utility model is as follows：This utility model is arranged on producing well
In well head production procedure, the pressure that the defeated flow process of outer wellhead surprisingly raises can be discharged, prevent because finding to lead to not in time in pipeline
The Environment Pollution Event that crude oil seepage causes, has the basic function that positive conventional pattern gas discharges ball-and-seat simultaneously, prevents oil extraction pump from producing
Angry lock impact oil well production.
1st, when normal production carries out covering gas discharge, set gas promotes exhaust plug, sets up exhaust passage, and set gas discharges into
Defeated flow process outward.
2nd, when dry-pressing gradually rises, and when exceeding casing pressure, air bleeding valve under the collective effect with exhaust plug spring for the dry-pressing
Core is closed, and all dry-pressing acts on the common end face that exhaust plug is formed with return spool then.When dry-pressing exceedes reflux inlet
When the setting pressure of core spring and set atmospheric pressure sum, the pressurized shift reverse of return spool, oil-gas mixture passes through return spool
Backflow gap and return valve body between and return port flow back in the sleeve pipe in well, reach the too high dry-pressing of release, prevent crude oil from piercing
Leakage, the purpose of protection land and marine environment.
This utility model had both had the effect of ball-and-seat, and casing gas are entered outer defeated flow process, had decompression function simultaneously again,
The pressure release passage being formed by gas-liquid channel, backflow gap and return port can be main when defeated flow process pressure anomaly and raises outside
Move as outer defeated flow process pressure release.Protect production flow line, prevent the generation of oil spill accident, effectively reduce production cost, protect
Protect environment, there is significant using effect and economic benefit.
Brief description
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Below in conjunction with detailed description this utility model, not limit protection domain of the present utility model.Described below is only
Preferred embodiment of the present utility model, other use equivalence changes of the present utility model, all should belong to protection of the present utility model
Scope.
Referring to Fig. 1, a kind of production wellhead produces valve and includes exhaust valve 5 and return valve body 1, is provided with exhaust valve 5
Gas-liquid channel 9, centre bore are built with exhaust plug spring 7 and exhaust plug 6；It is provided with return port 8, centre bore in return valve body 1
Built with return spool spring 2 and return spool 3；Return valve body 1 and exhaust valve 5 are connected and fastened by bolt 4, aerofluxuss
Valve element 6 is provided with backflow between the inner chamber of return spool 3 and exhaust valve 5 and return valve body 1 together with leaning with return spool 3
Gap.
Described exhaust plug 6 be solid cylinder, its external diameter be more than return spool 3 centre bore aperture, be less than or equal to
The internal diameter of the centre bore spring base of exhaust valve 5；Exhaust plug spring 7 is arranged in the centre bore spring base of exhaust valve 5, position
Between centre bore and exhaust plug 6.
Described return spool 3 is cylindrical barrel body, its inner chamber is non-isometrical inner chamber, and the internal diameter of centre bore both sides inner chamber is equal
It is more than or equal to the outer edge of gas-liquid channel 9 with exhaust plug 6 more than the upper lumen that the internal diameter of centre bore is leaned；Reflux inlet
Core spring 2 is arranged in the centre bore spring base of return valve body 1, is located between return spool 3 and the centre bore of return valve body 1.
It is non-isometrical inner chamber that the outer wall two ends of described exhaust valve 5 are provided with ring flange and bolt hole, inner chamber, centre bore and in
The inner chamber of heart hole spring base be less than both sides inner chamber, gas-liquid channel 9 be distributed in the cavity wall of centre bore spring base with return spool 3
Upper lumen corresponding.
Described gas-liquid channel 9 is hole or the groove of sector, arc or circle；The cavity wall of exhaust valve 5 centre bore spring base with
The joint face of lower section inner chamber is conical seal (contact) face.
It is non-isometrical inner chamber that the outer wall two ends of described return valve body 1 are provided with ring flange and bolt hole, inner chamber, centre bore and in
The inner chamber of heart hole spring base is less than interior below inner chamber, the internal diameter of both sides inner chamber and the exhaust valve 5 centre bore spring base of both sides
Intracavity footpath is consistent, and so that return spool 3 is slided between return valve body 1 and exhaust valve 5.
The even cloth of described return port 8 is in return valve body 1 centre bore spring base periphery on platform and return spool 3 and backflow
The backflow gap that the inner chamber of valve body 1 and exhaust valve 5 is formed is corresponding.
Described return spool 3 is provided with chamfering and the conical seal (contact) face of exhaust valve 5 with the upper end of exhaust valve 5 contact jaw
Match.
The pressure that sets of described exhaust plug spring 7 is less than the setting pressure of return spool spring 2, return spool spring 2
Set pressure be less than outer defeated flow process Safety Operation Pressure.
The ring flange in described exhaust valve 5 and return valve body 1 outside is connected with outer defeated flow process and wellhead casing pipe valve respectively.
During assembling, return spool 3 and return spool spring 2 are arranged in return valve body 1, by exhaust plug 6 and aerofluxuss
Valve core spring 7 is arranged in exhaust valve 5, is connected using bolt 4 and fasten two parts valve body after assembling.Exhaust plug 6 with
Return spool 3 mutually compresses in the presence of exhaust plug spring 7 and return spool spring 2, gas-liquid channel 9, backflow gap and
Return port 8 is completely in closed state.
Introduce the method for operation of the present utility model below in two kinds of situation：
1st, when normal production carries out covering gas discharge, under the promotion of set atmospheric pressure, exhaust plug 6 is opened, exhaust passage
Set up, set gas enters outer defeated flow process by the gas-liquid channel 9 on the centre bore of return spool 3 and exhaust valve 5.
2nd, when dry-pressing because improper factor gradually rises, and close to outer defeated flow process Safety Operation Pressure, need emergency decompression when,
Under dry-pressing with the collective effect of exhaust plug spring 7, exhaust plug 6 is closed, then all dry-pressing act on exhaust plug 6 with
On the common end face that return spool 3 is formed；When dry-pressing exceedes the setting pressure of return spool spring 2 with set atmospheric pressure sum,
Return spool 3 is departed from the conical seal (contact) face of exhaust valve 5, and oil-gas mixture passes through gas-liquid channel 9, backflow gap and return port
8 flow back in sleeve pipe.
The embodiment describing above is only exemplary embodiments, but this utility model is not limited only to these embodiments, ability
The technical staff in domain can make modification under without departing from spirit of the present utility model and enlightenment.Aspect disclosed herein may
There is a lot of changes, combination and change, and all in the range of this utility model, therefore, protection domain is not limited only to above
Explanation.
Claims (10)
1. a kind of production wellhead produces valve, it is characterized in that, including exhaust valve and return valve body, is provided with gas-liquid in exhaust valve
Passage, centre bore are built with exhaust plug spring and exhaust plug；It is provided with return port, centre bore built with backflow in return valve body
Valve core spring and return spool；Return valve body and exhaust valve are bolted and fasten, exhaust plug and return spool
Lean together, between return spool and exhaust valve and the inner chamber of return valve body, be provided with backflow gap.
2. a kind of production wellhead produces valve as claimed in claim 1, it is characterized in that, described exhaust plug is solid cylinder
Body, its external diameter aperture more than return spool centre bore, the internal diameter of the centre bore spring base less than or equal to exhaust valve；Aerofluxuss
Valve core spring is arranged in the centre bore spring base of exhaust valve, is located between centre bore and exhaust plug.
3. a kind of production wellhead produces valve as claimed in claim 1 or 2, it is characterized in that, described return spool is cylindrical
Cylindrical body, its inner chamber are non-isometrical inner chambers, and the internal diameter of centre bore both sides inner chamber is all higher than internal diameter and the exhaust plug top of centre bore
The upper lumen leaning on is more than or equal to the outer edge of gas-liquid channel；Return spool spring is arranged on the centre bore spring of return valve body
In seat, it is located between return spool and the centre bore of return valve body.
4. a kind of production wellhead produces valve as claimed in claim 3, it is characterized in that, the outer wall two ends of described exhaust valve set
Ring flange and bolt hole, inner chamber is had to be non-isometrical inner chambers, the inner chamber of centre bore and centre bore spring base is less than the inner chamber of both sides, gas
Liquid passage is distributed on corresponding with the upper lumen of return spool in the cavity wall of centre bore spring base.
5. a kind of production wellhead produces valve as claimed in claim 4, it is characterized in that, described gas-liquid channel is fan-shaped, arc
Or the hole of circle or groove；The cavity wall of exhaust valve centre bore spring base and the joint face of lower section inner chamber are conical seal (contact) faces.
6. a kind of production wellhead produces valve as claimed in claim 4, it is characterized in that, the outer wall two ends of described return valve body set
Have ring flange and bolt hole, inner chamber to be non-isometrical inner chamber, the inner chamber of centre bore and centre bore spring base be less than the inner chamber of both sides, two
The internal diameter of side inner chamber is consistent with the inner chamber internal diameter below exhaust valve centre bore spring base, enables return spool in return valve body
Slide and exhaust valve between.
7. a kind of production wellhead produces valve as claimed in claim 6, it is characterized in that, the even cloth of described return port is in return valve body
Centre bore spring base periphery on platform and return spool and return valve body and exhaust valve inner chamber formed backflow gap
Corresponding.
8. a kind of production wellhead produces valve as claimed in claim 5, it is characterized in that, described return spool and exhaust valve connect
The upper end of contravention is provided with chamfering and is matched with the conical seal (contact) face of exhaust valve.
9. a kind of production wellhead produces valve as claimed in claim 3, it is characterized in that, the setting pressure of described exhaust plug spring
Power be less than return spool spring set pressure, return spool spring set pressure be less than outer defeated flow process safe operation pressure
Power.
10. a kind of production wellhead produces valve as claimed in claim 6, it is characterized in that, described exhaust valve and return valve body
The ring flange in outside is connected with outer defeated flow process and wellhead casing pipe valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620856338.1U CN205977176U (en) | 2016-08-10 | 2016-08-10 | Oil recovery well head production valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620856338.1U CN205977176U (en) | 2016-08-10 | 2016-08-10 | Oil recovery well head production valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205977176U true CN205977176U (en) | 2017-02-22 |
Family
ID=59976556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620856338.1U Withdrawn - After Issue CN205977176U (en) | 2016-08-10 | 2016-08-10 | Oil recovery well head production valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205977176U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014334A (en) * | 2016-08-10 | 2016-10-12 | 中国石油化工股份有限公司 | Oil producing wellhead production valve |
-
2016
- 2016-08-10 CN CN201620856338.1U patent/CN205977176U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014334A (en) * | 2016-08-10 | 2016-10-12 | 中国石油化工股份有限公司 | Oil producing wellhead production valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170222 Effective date of abandoning: 20180925 |
|
| AV01 | Patent right actively abandoned |