CN209483289U - Oil well casing valve discharging gas under certain pressure - Google Patents
Oil well casing valve discharging gas under certain pressure Download PDFInfo
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- CN209483289U CN209483289U CN201821896861.2U CN201821896861U CN209483289U CN 209483289 U CN209483289 U CN 209483289U CN 201821896861 U CN201821896861 U CN 201821896861U CN 209483289 U CN209483289 U CN 209483289U
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Abstract
The utility model is a kind of oil well casing valve discharging gas under certain pressure, including the tubular valve body being vertically arranged, valve body bottom end is in opening, valve body lower portion side wall is equipped with pressure tap, valve body upper portion side wall is equipped with gas outlet, compartment of terrain is equipped with upper valve base and lower valve base on valve interior wall between gas outlet and pressure tap, and one is axially disposed at the intracorporal valve rod of valve, and valve rod bottom end is equipped with the ball valve core being sealed on lower valve base；It is equipped with fixing sleeve above ball valve core to be set on valve rod, and is sealed at the annular spool on upper valve base；Valve rod top fixing sleeve is equipped with a centering ring that can be slidedly arranged on valve interior wall；Top end of the valve body sealing above centering ring is equipped with the pressure-regulating device for being adjustable depressed stem power.The oil well casing valve discharging gas under certain pressure has the advantages that (1) using bivalve cored structure, improves sealing stability；(2) valve rod has righting structure, avoids hitting phenomenon partially, further increases sealing stability.
Description
Technical field
The utility model is about a kind of petroleum production engineering equipment more particularly to a kind of oil well casing valve discharging gas under certain pressure.
Background technique
To guarantee that oil well normally produces, influence of the casing gas to pumping efficiency of oil pump and annular space hydrodynamic face, part machine are reduced
Adopt well need in process of production periodically or non-periodically put casing gas, with reduce casing pressure and enter oil pipe gas flow.Scene
For the oil well sleeve gas releasing valve commonly used for ball-valve type or aciculiform valve type oil well sleeve gas releasing valve, this kind of vent valve groundwork is former
Reason is, when casing pressure is high, casing gas overcomes the gravity of ball valve or needle valve and the elastic force of spring, and spool is made to lift off a seat, thus
Casing gas operation is put in realization；When casing pressure reduces, spool drops back into valve seat again and realizes sealing.For the oil well of casing pressure frequent fluctuation,
Vent valve can be opened and closed frequently, can make spool or the prooving of valve seat, cause poorly sealed, not set in partial bleeder valve especially
Set spring, it can not stringent centering when valve ball (spool) drops back into valve seat, it may appear that hit phenomenon partially, make a part of fast of sealing surface of seat
Speed abrasion, seriously affects the sealing effect of vent valve.Generally directly and produced liquid in oil well due to the oil well sleeve gas releasing valve other end
The pipeline that enters the station connection, oil well sleeve gas releasing valve will lead to production fluid when poorly sealed and flow back into casing, to reduce oil well production
Amount.It is therefore desirable to propose it is a kind of seal more stable oil well sleeve gas releasing valve, put set with meet casing pressure frequent fluctuation oil well
Pressure demand.
The present inventor based on years of experience and practice in relevant industries, proposes that a kind of oil well casing level pressure is put as a result,
Air valve, to overcome the deficiencies of existing technologies.
Utility model content
The purpose of this utility model is to provide a kind of oil well casing valve discharging gas under certain pressure, and the structure of bivalve is used to put to improve
The sealing stability of air valve enhances vent valve in casing pressure and fluctuates the adaptability on frequent oil well.
The purpose of this utility model is achieved in that a kind of oil well casing valve discharging gas under certain pressure, including the pipe being vertically arranged
Shape valve body, in opening, valve body lower portion side wall is equipped with pressure tap for valve body bottom end, and valve body upper portion side wall is equipped with gas outlet, is located at outlet
Compartment of terrain is equipped with upper valve base and lower valve base on valve interior wall between mouth and pressure tap, and one is axially disposed at the intracorporal valve of valve
Bar, valve rod bottom end are equipped with the ball valve core being sealed on lower valve base；It is equipped with fixing sleeve above ball valve core to be set on valve rod, and close
Seal the annular spool being set on upper valve base；Valve rod top fixing sleeve is equipped with a centering ring that can be slidedly arranged on valve interior wall；It is located at
Top end of the valve body sealing above centering ring is equipped with the pressure-regulating device for being adjustable depressed stem power.
In a better embodiment of the utility model, the valve body is by upper valve body, middle valve body and lower valve body sequentially spiral shell
Line is fixedly connected.
In a better embodiment of the utility model, the upper valve base be fixedly connected on upper valve body and middle valve body it
Between；The lower valve base is fixedly connected between middle valve body and lower valve body.
In a better embodiment of the utility model, the pressure tap is arranged in lower valve body sidewall；The gas outlet
It is arranged in upper valve body sidewall.
In a better embodiment of the utility model, the pressure-regulating device includes being arranged above valve rod and energy
The sealing gland slided above and below along valve interior wall, is arranged spring between sealing gland and centering ring, spring is set in valve rod top
Portion；A pressure cap is fixedly installed in top end of the valve body, and pressure cap center is equipped with the threaded hole penetrated through above and below, and one adjusts jackscrew spiral shell from top to bottom
Across threaded hole, the bottom end top for adjusting jackscrew is held in the top surface of sealing gland for rotation.
In a better embodiment of the utility model, the sealing gland is in inverted concave structure, sealing gland outer wall
Equipped with sealing ring.
In a better embodiment of the utility model, the adjusting jackscrew is equipped with a nut, and nut is located at pressure cap
Top.
In a better embodiment of the utility model, upper valve seating face is equipped with the sealing surface cooperated with annular spool；
Lower valve seating face is equipped with the sealing surface cooperated with ball valve core.
In a better embodiment of the utility model, valve body bottom end opening is connected to cannula exit pipeline；Pressure tap
On be connected with pressure gauge；Gas outlet is connected to production fluid and enters the station pipeline.
From the above mentioned, the utility model oil well casing valve discharging gas under certain pressure has the advantages that (1) uses bivalve cored structure,
Improve sealing stability；(2) valve rod has righting structure, avoids hitting phenomenon partially, further increases sealing stability.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model
It encloses.Wherein:
Fig. 1: for the structural schematic diagram of the utility model oil well casing valve discharging gas under certain pressure.
Drawing reference numeral:
100, oil well casing valve discharging gas under certain pressure；
1, valve body；
11, upper valve body；
12, middle valve body；
13, lower valve body；
14, it is open；
15, pressure tap；
16, gas outlet；
21, upper valve base；
22, lower valve base；
3, valve rod；
31, annular spool；
32, ball valve core；
33, centering ring；
4, pressure-regulating device；
41, sealing gland；
411, sealing ring；
42, spring；
43, pressure cap；
44, jackscrew is adjusted；
441, nut.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In addition to non-individual defines the direction pointed out, the upper and lower equal directions being referred to herein are with the utility model
Shown in subject to upper and lower equal directions in Fig. 1, illustrate in this together.
As shown in Figure 1, the utility model proposes a kind of oil well casing valve discharging gas under certain pressure 100, including the tubulose being vertically arranged
Valve body 1, for 1 bottom end of valve body in opening 14,1 lower sides of valve body are equipped with pressure tap 15, and 1 upper portion side wall of valve body is equipped with gas outlet 16,
Valve body bottom end opening 14 is connected to cannula exit pipeline；Pressure gauge is connected in pressure tap 15；Gas outlet 16 is connected to production fluid
Enter the station pipeline；Compartment of terrain is equipped with upper valve base 21 and lower valve base 22 on 1 inner wall of valve body between gas outlet 16 and pressure tap 15,
In the present embodiment, the valve body 1 is the connection that is sequentially screwed by upper valve body 11, middle valve body 12 and lower valve body 13, institute
Upper valve base 21 is stated to be fixedly connected between upper valve body 11 and middle valve body 12；The lower valve base 22 is fixedly connected on middle valve body 12 under
It (is held and is connect using the inner wall step-shaped top being accordingly arranged) between valve body 13；In the present embodiment, the setting of pressure tap 15 exists
13 side wall of lower valve body is connect by screw thread or welding manner with lower valve body 13；The gas outlet 16 is arranged in 11 side wall of upper valve body,
It is connect by screw thread or welding manner with upper valve body 11；One valve rod 3 is axially disposed inside valve body 1, and 3 bottom end of valve rod is equipped with close
Seal the ball valve core 32 being set on lower valve base 22；It is equipped with fixing sleeve above ball valve core 32 to be set on valve rod 3, and is sealed at
Annular spool 31 on valve seat 21；21 surface of upper valve base is equipped with the sealing surface cooperated with annular spool 31；22 surface of lower valve base is set
There is the sealing surface cooperated with ball valve core 32；3 top fixing sleeve of valve rod is equipped with a centering ring 33 that can be slidedly arranged on 1 inner wall of valve body；Position
1 end sealing of valve body above centering ring 33 is equipped with the pressure-regulating device 4 for being adjustable pressure under valve rod 3.
The main operational principle of the utility model oil well casing valve discharging gas under certain pressure 100 is: oil well casing valve discharging gas under certain pressure
Lower valve body 13 is connected on cannula exit pipeline, and gas outlet 16 is connect by pipeline and the produced liquid in oil well pipeline that enters the station, pressure tap
15 connection pressure gauges；When covering set-pressure of the overpressure more than oil well casing valve discharging gas under certain pressure, casing gas opens ball valve core
32 and annular spool 31, production fluid is entered by gas outlet 16 and pipeline and is entered the station pipeline, casing gas operation is put in realization；When in casing
When pressure is lower than the set-pressure of oil well casing valve discharging gas under certain pressure, valve rod 3, annular spool 31, ball valve core 32 are in self weight and spring
Downlink under the action of power, seals upper valve base 21 and lower valve base 22, and oil well casing valve discharging gas under certain pressure is closed.And so on, Ji Keshi
The automatic deflation of existing casing gas, avoids a large amount of casing gas from influencing pumping efficiency of oil pump and well fluid level.
The utility model oil well casing valve discharging gas under certain pressure 100 seals more stable mechanism: first is that using annular spool and ball
The structure of spool double containment improves integral sealing reliability；Second is that valve rod, annular spool, ball valve core link together, valve rod
On centering ring is installed, guarantee stringent centering when annular spool and ball valve core fall, avoid the occurrence of and hit problem partially, guarantee spool and
Valve seat is in frequent contact-impact not because hitting due to premature failure partially.
For the minimum set-pressure for reducing the vent valve, low-density alloy material is can be used in valve rod material, such as: aluminium alloy,
Titanium alloy etc., while valve rod is also designed to hollow bar structure.
From the above mentioned, the utility model oil well casing valve discharging gas under certain pressure has the advantages that (1) uses bivalve cored structure,
Improve sealing stability；(2) valve rod has righting structure, avoids hitting phenomenon partially, further increases sealing stability.
Further, as shown in Figure 1, in the present embodiment, the pressure-regulating device 4 includes being arranged above valve rod 3
And the sealing gland 41 that can be slided above and below along 1 inner wall of valve body, spring 42, bullet are set between sealing gland 41 and centering ring 33
Spring 42 is set in 3 top of valve rod；A pressure cap 43 is fixedly installed in 1 top of valve body, and 43 center of pressure cap is equipped with the screw thread penetrated through above and below
Hole, an adjusting jackscrew 44 are threaded through threaded hole from top to bottom, and the bottom end top for adjusting jackscrew 44 is held in the top surface of sealing gland 41.
44 top of jackscrew is adjusted equipped with head (convenient for tools such as connection spanners) are adjusted, head is adjusted and adjusting jackscrew is integrally formed；The tune
It saves jackscrew 44 and is equipped with a nut 441, nut 441 is located at 43 top of pressure cap, will using nut 441 after the completion of adjusting lower pressure
Jackscrew 44 is adjusted to lock.
In the present embodiment, the sealing gland 41 is in inverted concave structure, and 41 outer wall of sealing gland is equipped with sealing ring
411.Centering ring 33 by screwed connection on 3 top of valve rod, 42 upper end of spring is contacted with sealing gland 41,42 lower end of spring with help
Positive ring 33 contacts；Annular spool 31 is by screwed connection at 3 middle part of valve rod；Ball valve core 32 is by screwed connection in 3 lower end of valve rod；
Upper valve base 21, lower valve base 22 are sequentially sleeved in the step of upper valve body 11, middle valve body 12, and by middle valve body 12, lower valve body 13
Hold fixation in top top.
The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model
It encloses.Any those skilled in the art, made equivalent change under the premise of not departing from the conceptions and principles of the utility model
Change and modify, should belong to the range of the utility model protection.
Claims (9)
1. a kind of oil well casing valve discharging gas under certain pressure, including the tubular valve body being vertically arranged, valve body bottom end is in opening, valve body lower portion side
Wall is equipped with pressure tap, and valve body upper portion side wall is equipped with gas outlet, which is characterized in that in the valve body between gas outlet and pressure tap
Compartment of terrain is equipped with upper valve base and lower valve base on wall, and one is axially disposed at the intracorporal valve rod of valve, and valve rod bottom end is equipped with sealed set
In the ball valve core on lower valve base；It is equipped with fixing sleeve above ball valve core to be set on valve rod, and is sealed at the annular on upper valve base
Spool；Valve rod top fixing sleeve is equipped with a centering ring that can be slidedly arranged on valve interior wall；Top end of the valve body above centering ring is close
Envelope is equipped with the pressure-regulating device for being adjustable depressed stem power.
2. oil well casing valve discharging gas under certain pressure as described in claim 1, which is characterized in that the valve body is by upper valve body, middle valve body
Sequentially be screwed connection with lower valve body.
3. oil well casing valve discharging gas under certain pressure as claimed in claim 2, which is characterized in that the upper valve base is fixedly connected on upper valve
Between body and middle valve body；The lower valve base is fixedly connected between middle valve body and lower valve body.
4. oil well casing valve discharging gas under certain pressure as claimed in claim 3, which is characterized in that the pressure tap is arranged on lower valve side
Wall；The gas outlet is arranged in upper valve body sidewall.
5. oil well casing valve discharging gas under certain pressure as described in claim 1, which is characterized in that the pressure-regulating device includes setting
Above valve rod and the sealing gland that can slide above and below along valve interior wall, spring, bullet are set between sealing gland and centering ring
Spring is set in valve stem top；A pressure cap is fixedly installed in top end of the valve body, and pressure cap center is equipped with the threaded hole penetrated through above and below, and one is adjusted
Jackscrew is threaded through threaded hole from top to bottom, and the bottom end top for adjusting jackscrew is held in the top surface of sealing gland.
6. oil well casing valve discharging gas under certain pressure as claimed in claim 5, which is characterized in that the sealing gland is in inverted concave knot
Structure, sealing gland outer wall are equipped with sealing ring.
7. oil well casing valve discharging gas under certain pressure as claimed in claim 5, which is characterized in that the adjusting jackscrew is equipped with a spiral shell
Mother, nut are located above pressure cap.
8. oil well casing valve discharging gas under certain pressure as described in claim 1, which is characterized in that upper valve seating face is equipped with and annular spool
The sealing surface of cooperation；Lower valve seating face is equipped with the sealing surface cooperated with ball valve core.
9. oil well casing valve discharging gas under certain pressure as described in claim 1, which is characterized in that valve body bottom end opening is connected to casing and goes out
Mouth pipeline；Pressure gauge is connected in pressure tap；Gas outlet is connected to production fluid and enters the station pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821896861.2U CN209483289U (en) | 2018-11-16 | 2018-11-16 | Oil well casing valve discharging gas under certain pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821896861.2U CN209483289U (en) | 2018-11-16 | 2018-11-16 | Oil well casing valve discharging gas under certain pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209483289U true CN209483289U (en) | 2019-10-11 |
Family
ID=68116015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821896861.2U Active CN209483289U (en) | 2018-11-16 | 2018-11-16 | Oil well casing valve discharging gas under certain pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209483289U (en) |
-
2018
- 2018-11-16 CN CN201821896861.2U patent/CN209483289U/en active Active
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