CN208950565U - A kind of big channel steam injection ball-and-seat of erosion resistance - Google Patents
A kind of big channel steam injection ball-and-seat of erosion resistance Download PDFInfo
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- CN208950565U CN208950565U CN201821388243.7U CN201821388243U CN208950565U CN 208950565 U CN208950565 U CN 208950565U CN 201821388243 U CN201821388243 U CN 201821388243U CN 208950565 U CN208950565 U CN 208950565U
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- seat
- push rod
- steam
- spring base
- valve
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Abstract
The utility model discloses a kind of big channel steam injection ball-and-seats of erosion resistance, including valve bonnet, valve seat, spool, the valve seat is mounted on valve bonnet upper port, spool is located inside valve bonnet, the spool is sealing push rod, and the sealing push rod upper surface can form sealing blocking cooperation, pocketed springs outside the sealing push rod with valve seat lower port, the valve bonnet lower port installs spring base, and the lower spring end is withstood on spring base.The sealing push rod upper surface is spherical surface, and the diameter at spherical surface maximum gauge is greater than the internal diameter of valve seat lower port, and the spring upper end is withstood at the top fastening station that sealing push rod outer wall opens up.The spring base open up axially through steam recirculation hole.The utility model has the function of bearing the repeated stock of injection steam, reduces the throttling of injection steam as far as possible while the basic function for preventing injection steam from returning out with ball-and-seat.
Description
Technical field
The utility model relates to viscous crude heat extraction by steam injection development technique, specifically a kind of big channel steam injection list of erosion resistance
Flow valve.
Background technique
Currently, due to Wellhead steam injection equipment fault or well head thorn leakage etc., being needed in viscous crude heat extraction by steam injection development process
Stop note to repair, that is, needs to increase a steam injection ball-and-seat device in steam injection string to prevent the steam of injection from returning out.
There are easy erosions to damage for currently used steam injection ball-and-seat.
Patent ZL201510426279.4 discloses a kind of ball-and-seat, is easily destroyed to solve existing injection gaseous impurity
The problem of valve ball in ball-and-seat and valve base sealing effect.The present invention includes: valve body, the valve inner be equipped with the first strainer,
Valve seat, valve ball, spring, spring pressure ring and the second strainer；Flexible Jie is connected around the contact surface of the valve seat and valve ball
Matter, the side wall of the elastic fluid is at strainer shape.The present invention can will inject the contaminant filter in gas to protect in ball-and-seat
Valve ball and valve seat sealing effect.
Patent ZL200620092575.1 discloses a kind of steam injection well underground steam for thick oil filling steam heating exploitation
Check device is made of main body 4, cone valve 1, spring 2 and spring base 3, cone valve 1 is equipped in main body 4, lower part inner headed face is with spiral shell
Line has assembled spring base 3, and 1 outer sheath of cone valve is equipped with spring 2, and 2 upper and lower end of spring is respectively end toper on cone valve 1
Object table rank and 3 top surface of spring base are limited.The apparatus structure is simple, reliable operation, and the effect using the device ball-and-seat both may be used
Guarantee the normal steam injection of heavy oil wells, and can stop note when without by steam evacuation pressure be zeroed in the case where, maintenance well head leakage or
Valve is replaced, is conducive to save steam thermal energy, increase economic efficiency, and can guarantee personal safety, prevent the generation of contamination accident.
The problems such as patent ZL201510426279.4, steam flow channel is small, the pressure loss is big, heat utilization rate is low, specially
Steam returns out the injury person when sharp ZL200620092575.1 causes to stop note, and steam injection pressure is high, and equipment energy consumption is big, steam injection efficiency
Difference.
Utility model content
The purpose of this utility model is to provide a kind of big channel steam injection ball-and-seats of erosion resistance, are preventing from infusing with ball-and-seat
While entering the basic function that steam returns out, and there is the repeated stock for bearing injection steam, reduce injection steaming as far as possible
The throttling of vapour, reduces operation consumption at the features such as reducing steam injection pressure, improves steam injection efficiency, and can guarantee personal safety,
Prevent the generation of contamination accident.
In order to achieve the above objectives, the utility model provides following technical scheme, a kind of big channel steam injection list of erosion resistance
Valve is flowed, including valve bonnet, valve seat, spool, the valve seat are mounted on valve bonnet upper port, spool is located inside valve bonnet, and the spool is
Push rod is sealed, the sealing push rod upper surface can form sealing blocking with valve seat lower port and cooperate, outside the sealing push rod
Pocketed springs, the valve bonnet lower port install spring base, and the lower spring end is withstood on spring base.
The sealing push rod upper surface is spherical surface, and the diameter at spherical surface maximum gauge is greater than the internal diameter of valve seat lower port, institute
Spring upper end is stated to withstand at the top fastening station that sealing push rod outer wall opens up.
The sealing push rod lower semisection is guide post, and the spring base center opens up pilot hole, and guide post is axially run on
In pilot hole.
The spring base open up axially through steam recirculation hole.
The spring base lower end connects lower contact.
The valve seat and valve bonnet are screw-type connection and equipped holding screw；The spring base and valve bonnet are screw-type connection
And equipped holding screw.
Compared to the prior art, the utility model has the following beneficial effects:
Valve seat connects top insulated tubing, and lower contact connects lower part steam injection tool, valve seat, valve bonnet, spring base and lower contact
It is attached by screw thread, and is fixed using holding screw.It seals push rod and spring base is clearance fit, it can be in bullet
It is slided up and down in spring abutment, and devises limited step, play position-limiting action, the effective protection excess compression of spring.Sealing
Push rod realizes the sealing of sealing push rod and valve seat by the upper top power of spring.Steam injection channel there are two opening in spring base, is conducive to
Inject the circulation of steam.
When steam injection, under the action of injecting steam, sealing push rod is moved down, and steam is by between sealing push rod and valve seat
Gap enter in ball-and-seat, and enter lower part steam injection string, and then injection well along two steam injection channels in spring base
Lower oil reservoir.When stopping note, push rod is sealed under the double action of underground steam and spring, is fitted close with valve seat, to prevent
The steam of underground returns out.
The big channel steam injection ball-and-seat of erosion resistance of the utility model design is preventing injection steam from returning out with ball-and-seat
While basic function, and the throttling that there is the repeated stock for bearing injection steam, reduce injection steam as far as possible, it reduces
The features such as steam injection pressure, operation consumption is reduced, improves steam injection efficiency, and can guarantee personal safety, prevent contamination accident
Generation, have a extensive future.
The sealing of conventional ball-type is changed to sealing push rod seal, the vibration back and forth for avoiding ball sealer causes asking for seal failure
Topic, and seal push rod and be equipped with limited step, prevent spring excess compression from damaging.There are two big channel steam streams for setting in spring base
Through-hole reduces the throttling of injection steam, reduces steam injection pressure, improve steam injection efficiency.
While the basic function for preventing injection steam from returning out with ball-and-seat, and has and bear injection steam repeatedly
The features such as impact reduces the throttling for injecting steam as far as possible, reduces steam injection pressure, reduces operation consumption, improves
Steam injection efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the big channel steam injection ball-and-seat of erosion resistance of the utility model.
In figure: valve seat 1, valve bonnet 2, sealing push rod 3, spring 4, spring base 5, holding screw 6, lower contact 7.
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.
Referring to Fig. 1, the utility model provides a kind of technical solution: a kind of big channel steam injection ball-and-seat of erosion resistance, including
Valve bonnet 2, valve seat 1, spool, the valve seat are mounted on valve bonnet upper port, and spool is located inside valve bonnet, and the spool is sealing push rod
3, the sealing push rod upper surface can form sealing blocking cooperation, pocketed springs outside the sealing push rod with valve seat lower port
4, the valve bonnet lower port installs spring base 5, and the lower spring end is withstood on spring base.
The sealing push rod upper surface is spherical surface, and the diameter at spherical surface maximum gauge is greater than the internal diameter of valve seat lower port, institute
Spring upper end is stated to withstand at the top fastening station that sealing push rod outer wall opens up.
The sealing push rod lower semisection is guide post, and the spring base center opens up pilot hole, and guide post is axially run on
In pilot hole.
The spring base open up at least two axially through steam recirculation hole.Steam recirculation hole is the design of big channel, institute
It calls big channel and just refers to that the aperture of steam stream through-hole opens up big as far as possible, such as total flow-passing surface of setting steam recirculation hole
Product is greater than the one third of the area of passage equal to valve seat lower port, but to guarantee the structural rigidity of spring base itself without damage
And push rod is sealed to the pressure at pilot hole not by pressure break.
The spring base lower end connects lower contact 7.
The valve seat and valve bonnet are screw-type connection and equipped holding screw；The spring base and valve bonnet are screw-type connection
And equipped holding screw 6.
Valve seat 1 connect top insulated tubing, lower contact 7 connect lower part steam injection tool, valve seat 1, valve bonnet 2, spring base 5 and under
Connector 7 is attached by screw thread, and is fixed using holding screw 6.It seals push rod 3 and spring base 5 is clearance fit,
Can be slided up and down in spring base 5, and devise limited step, play position-limiting action, effective protection spring it is excessive
Compression.Seal the sealing that push rod 3 realizes sealing push rod and valve seat by the upper top power of spring 4.Steam injection there are two being opened in spring base 5
Channel is conducive to the circulation for injecting steam.
When steam injection, under the action of injecting steam, sealing push rod is moved down, and steam is by between sealing push rod and valve seat
Gap enter in ball-and-seat, and enter lower part steam injection string, and then injection well along two steam injection channels in spring base 5
Lower oil reservoir.When stopping note, push rod is sealed under the double action of underground steam and spring, is fitted close with valve seat, to prevent
The steam of underground returns out.
The big channel steam injection ball-and-seat of erosion resistance of the utility model design is preventing injection steam from returning out with ball-and-seat
While basic function, and the throttling that there is the repeated stock for bearing injection steam, reduce injection steam as far as possible, it reduces
The features such as steam injection pressure, operation consumption is reduced, improves steam injection efficiency, and can guarantee personal safety, prevent contamination accident
Generation, have a extensive future.
(1) sealing of conventional ball-type is changed to sealing push rod seal, the vibration back and forth for avoiding ball sealer causes seal failure
The problem of, and seal push rod and be equipped with limited step, prevent spring excess compression from damaging.(2) there are two big logical for setting in spring base
Road steam recirculation hole reduces the throttling of injection steam, reduces steam injection pressure, improve steam injection efficiency.
While the basic function for preventing injection steam from returning out with ball-and-seat, and has and bear injection steam repeatedly
The features such as impact reduces the throttling for injecting steam as far as possible, reduces steam injection pressure, reduces operation consumption, improves
Steam injection efficiency.
When steam injection, under the action of injecting steam, sealing push rod 3 is moved down, and steam is by sealing push rod 3 and valve seat 1
Between gap enter in ball-and-seat, and enter lower part steam injection string along two steam injection channels in spring base 5, and then infuse
Enter underground oil reservoir.When stopping note, push rod 3 is sealed under the double action of underground steam and spring 4, is fitted close with valve seat 1, from
And prevent the steam of underground from returning out.
In the description of the present invention, it should be understood that temporald eixis or positional relationship are based on the figure
Orientation or positional relationship is merely for convenience of description the utility model, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of big channel steam injection ball-and-seat of erosion resistance, including valve bonnet, valve seat, spool, the valve seat are mounted on valve bonnet upper port,
Spool is located inside valve bonnet, which is characterized in that the spool be sealing push rod, the sealing push rod upper surface can under valve seat
Port forms sealing blocking cooperation, pocketed springs outside the sealing push rod, and the valve bonnet lower port installs spring base, the bullet
Spring lower end is withstood on spring base.
2. the big channel steam injection ball-and-seat of a kind of erosion resistance according to claim 1, which is characterized in that on the sealing push rod
End face is spherical surface, and the diameter at spherical surface maximum gauge is greater than the internal diameter of valve seat lower port, and the spring upper end withstands on sealing push rod
At the top fastening station that outer wall opens up.
3. the big channel steam injection ball-and-seat of a kind of erosion resistance according to claim 1 or 2, which is characterized in that the sealing pushes away
Bar lower semisection is guide post, and the spring base center opens up pilot hole, and guide post is axially run in pilot hole.
4. the big channel steam injection ball-and-seat of a kind of erosion resistance according to claim 1 or 2, which is characterized in that the spring base
Open up axially through steam recirculation hole.
5. the big channel steam injection ball-and-seat of a kind of erosion resistance according to claim 1 or 2, which is characterized in that the spring base
Lower end connects lower contact.
6. the big channel steam injection ball-and-seat of a kind of erosion resistance according to claim 1 or 2, which is characterized in that the valve seat with
Valve bonnet is screw-type connection and equipped holding screw；The spring base and valve bonnet are screw-type connection and equipped holding screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821388243.7U CN208950565U (en) | 2018-08-27 | 2018-08-27 | A kind of big channel steam injection ball-and-seat of erosion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821388243.7U CN208950565U (en) | 2018-08-27 | 2018-08-27 | A kind of big channel steam injection ball-and-seat of erosion resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208950565U true CN208950565U (en) | 2019-06-07 |
Family
ID=66735961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821388243.7U Active CN208950565U (en) | 2018-08-27 | 2018-08-27 | A kind of big channel steam injection ball-and-seat of erosion resistance |
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| CN (1) | CN208950565U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282696A (en) * | 2020-11-04 | 2021-01-29 | 中国石油天然气股份有限公司 | One-way valve and automatic intermittent pumping system and method with same |
| CN114482906A (en) * | 2022-01-30 | 2022-05-13 | 陕西省煤田地质集团有限公司 | Packer |
-
2018
- 2018-08-27 CN CN201821388243.7U patent/CN208950565U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282696A (en) * | 2020-11-04 | 2021-01-29 | 中国石油天然气股份有限公司 | One-way valve and automatic intermittent pumping system and method with same |
| CN114482906A (en) * | 2022-01-30 | 2022-05-13 | 陕西省煤田地质集团有限公司 | Packer |
| CN114482906B (en) * | 2022-01-30 | 2023-08-08 | 陕西省煤田地质集团有限公司 | Packer |
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