CN210134907U - Self-excitation type steam injection valve - Google Patents
Self-excitation type steam injection valve Download PDFInfo
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- CN210134907U CN210134907U CN201920326727.7U CN201920326727U CN210134907U CN 210134907 U CN210134907 U CN 210134907U CN 201920326727 U CN201920326727 U CN 201920326727U CN 210134907 U CN210134907 U CN 210134907U
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- steam injection
- sliding sleeve
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Abstract
The utility model provides a self-excited steam injection valve, which comprises a valve body, a steam injection device and a sliding sleeve, wherein the valve body is provided with a steam inlet channel which is axially communicated, and the lower part of the steam inlet channel is connected with a limiting ring; the steam injection device comprises a plurality of steam injection flow channels, each steam injection flow channel comprises an installation section, a reducing section and an expanding section which are sequentially communicated from outside to inside along the radial direction of the valve body, a nozzle is installed in the installation section and communicated with the reducing section, and the expanding section is communicated with the steam inlet channel; the sliding sleeve can be axially arranged in the steam inlet channel, a plurality of steam inlet holes which can be respectively communicated with each steam injection flow channel are formed in the side wall of the sliding sleeve, a setting part for ball injection setting is arranged at the bottom end of the sliding sleeve, and the sliding sleeve is provided with a first working position communicated with the steam injection flow channels and a second working position for plugging the steam injection flow channels. The utility model discloses a vapour valve is annotated to auto-excitation formula, the internal vapour of valve can form auto-excitation mechanism in annotating the vapour runner, has increased erosion and cleaning power, has realized unblocking the oil reservoir simultaneously at the in-process of annotating vapour.
Description
Technical Field
The utility model relates to a crude oil exploitation technical field, in particular to vapour valve is annotated to auto-excitation formula.
Background
In order to improve the development effect of thick oil and ultra-thick oil wells in oil fields, air catalytic oxidation oil extraction is generally implemented in the thick oil and ultra-thick oil wells, and favorable effect is seen. Wherein, the effects of air and steam injection in the selected layer are more ideal than the effects of air and steam oil increase in the general layer. However, in the implementation process, due to the limitation of the traditional steam injection valve, the oil layer is only heated and processed when air or steam is injected, and the oil layer can not be deblocked, so that the oil extraction effect is not very ideal.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can solve stifled auto-excitation formula steam injection valve who handles to the oil reservoir simultaneously at the in-process of annotating vapour.
In order to achieve the above object, the utility model provides a vapour valve is annotated to auto-excitation formula, it includes:
the valve body is provided with an axially through steam inlet channel, and the lower part of the steam inlet channel is detachably connected with a limiting ring;
the steam injection device comprises at least one group of steam injection components arranged along the axial direction of the valve body, each steam injection component comprises a plurality of steam injection flow channels arranged along the circumferential direction of the valve body at intervals, each steam injection flow channel comprises an installation section, a reducing section and an expanding section which are sequentially communicated from outside to inside along the radial direction of the valve body, the inner diameter of the expanding section is larger than that of the reducing section, a nozzle is installed in the installation section and communicated with the reducing section, the inner diameter of the nozzle is smaller than that of the reducing section, and the expanding section is communicated with the steam inlet channel;
the sliding sleeve, it is the open cavity tube-shape in both ends, the sliding sleeve can axial displacement set up in the admission passageway, the outer peripheral face of sliding sleeve with the sealed cooperation of internal surface of admission passageway, be equipped with a plurality ofly respectively with each on the lateral wall of sliding sleeve the admission hole that the steam injection runner is linked together, the bottom of sliding sleeve is equipped with the seat portion that seals that supplies the ball seat to seal, the sliding sleeve has the butt the spacing ring and intercommunication the admission hole with the first operating position and the shutoff of steam injection runner the second operating position of steam injection runner.
The self-excitation type steam injection valve is characterized in that the side wall of the valve body is detachably connected with a plurality of mounting frames, through holes are formed in the mounting frames, and the through holes form the steam injection flow channel.
The self-excited steam injection valve comprises a valve body, wherein the valve body is provided with a connecting hole, the connecting hole is communicated with a steam inlet channel, the connecting hole is provided with a connecting internal thread, the mounting frame is provided with a connecting external thread, the connecting internal thread is matched with the connecting external thread in a screwing mode, and the mounting frame is connected in the valve body.
The self-excitation type steam injection valve comprises a valve body, wherein the valve body is provided with a connecting part and a communicating part, the connecting part and the communicating part are sequentially communicated from outside to inside in the radial direction of the valve body, the inner diameter of the connecting part is larger than that of the communicating part, the connecting internal thread is arranged in the connecting part, and the communicating part is communicated with the steam inlet channel.
The self-excitation type steam injection valve is characterized in that the mounting section is provided with a mounting internal thread, the nozzle is provided with a mounting external thread, and the nozzle is connected in the steam injection flow channel through the screwing matching of the mounting internal thread and the mounting external thread.
The self-excited steam injection valve as described above, wherein the setting part is a stop ring having a central hole and formed by the lower end surface of the sliding sleeve shrinking inwards in the circumferential direction, and the diameter of the central hole of the stop ring is smaller than the diameter of the shot.
The self-excitation type steam injection valve is characterized in that the sliding sleeve is provided with a stepped through hole with a large upper part and a small lower part along the axial direction, and the setting part is a stepped surface of the stepped through hole.
The self-excited steam injection valve is characterized in that the limiting ring is connected with the valve body through a pin.
The self-excitation type steam injection valve is characterized in that a limiting internal thread is arranged at the lower part of the steam inlet channel, a limiting external thread is arranged on the limiting ring, and the limiting ring is connected in the valve body through the screwing matching of the limiting internal thread and the limiting external thread.
The self-excited steam injection valve as described above, wherein a plurality of the steam injection flow passages are provided at equal intervals.
Compared with the prior art, the utility model has the advantages as follows:
the utility model provides a vapour valve is annotated to auto-excitation, the fluid is in annotating the vapour passageway, can produce initial excitement pressure, can be with excitement pressure feedback resonant cavity again, form feedback pressure oscillation, when reaching resonance, the vapour produces the interrupted vortex circulation of big structure in the exit, huge pressure oscillation and high strength's cavitation efflux, erosion and cleaning power have been increased, make casing wall and near-wellbore area obtain effectual washing, thereby realized the unblock processing of going on the oil reservoir simultaneously at the in-process of annotating vapour, and then the exploitation effect that makes crude oil is more ideal.
The utility model provides a vapour valve is annotated to auto-excitation through the connection with mounting bracket ability dismouting on the valve body to annotate the vapour runner and set up on the mounting bracket, make behind the vapour erosion notes vapour runner, the mounting bracket of renewal can, need not to change whole valve body, both prolonged the life of valve body, will reduce cost of maintenance again.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
FIG. 1 is a schematic structural view of a self-excited steam injection valve of the present invention;
fig. 2 is a schematic structural view of a mounting bracket in the self-energizing steam injection valve shown in fig. 1.
The reference numbers illustrate:
1. a valve body; 11. a steam inlet passage; 12. a limiting ring; 13. connecting holes;
2. a steam injection channel; 21. an installation section; 22. a reducing section; 23. a diameter expanding section;
3. a nozzle; 4. a sliding sleeve; 41. a steam inlet hole; 42. a stop ring;
5. throwing a ball; 6. and (7) mounting frames.
Detailed Description
In order to clearly understand the technical solution, purpose and effect of the present invention, the detailed embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 and 2, the utility model provides a self-excited steam injection valve, it includes valve body 1, steam injection device and sliding sleeve 4, wherein:
the valve body 1 is provided with an axially through steam inlet channel 11, the lower part of the steam inlet channel 11 is detachably connected with a limiting ring 12, an inner hole of the limiting ring 12 is communicated with the steam injection channel 2, the upper end of the valve body 1 is provided with a valve body internal thread, the lower end of the valve body 1 is provided with a valve body external thread, and the valve body internal thread and the valve body external thread are both used for connecting other underground parts;
the steam injection device comprises at least one group of steam injection components arranged along the axial direction of the valve body 1, two groups of steam injection components are preferably arranged in the embodiment, each steam injection component comprises a plurality of steam injection flow channels arranged along the circumferential direction of the valve body 1 at intervals, each steam injection flow channel comprises an installation section 21, a reducing section 22 and an expanding section 23 which are sequentially communicated from outside to inside along the radial direction of the valve body 1, the inner diameter of each expanding section 23 is larger than the inner diameter of each reducing section 22, a nozzle 3 is installed in each installation section 21, the inlet of each nozzle 3 is communicated with each reducing section 22, the inner diameter of each nozzle 3 is smaller than the inner diameter of each reducing section 22, the outlet of each nozzle 3 is communicated with the outside of the valve body 1, and each expanding section 23 is communicated with the steam inlet channel 11, namely, each steam inlet channel 11 is communicated with;
the sliding sleeve 4 is in a hollow cylinder shape with two open ends, the sliding sleeve 4 is arranged in the steam inlet channel 11 in an axial moving way, the outer peripheral surface of the sliding sleeve 4 is in sealing fit with the inner surface of the steam inlet channel 11, the inside of the sliding sleeve 4 is communicated with the steam injection channel 2, the side wall of the sliding sleeve 4 is provided with a plurality of steam inlet holes 41 which are respectively communicated with each steam injection flow channel, the bottom end of the sliding sleeve 4 is provided with a setting part for setting the ball injection 5, the sliding sleeve 4 can be driven to move in the steam inlet channel 11 by the ball injection 5 in the sliding sleeve 4, the sliding sleeve 4 is provided with a butting limiting ring 12 and communicated with the steam inlet holes 41 and a first working position of the steam injection flow channel and a second working position for plugging the steam injection flow channel, namely when the sliding sleeve 4 is positioned at the first working position, the bottom end of the sliding sleeve 4 is butted with the limiting ring 12, the steam inlet holes 41 are communicated with the expanding section 23 of the steam injection, the side wall of the sliding sleeve 4 blocks the diameter expanding section 23 of the steam injection flow passage, so that the steam inlet flow passage is not communicated with the steam injection flow passage, namely, the movement of the sliding sleeve 4 can communicate or block the steam flow passage and the steam inlet passage 11.
When in use, the self-excitation type steam injection valve is connected with the pipe column, when the self-excitation type steam injection valve is lowered to a designed position along with the pipe column, steam is injected into the shaft, when steam is required to be injected to the position of the self-excitation type steam injection valve, a pitching ball 5 is thrown into the valve body 1, the pitching ball 5 enters the sliding sleeve 4 and seats on a seat sealing part at the bottom of the sliding sleeve 4, at the moment, the sliding sleeve 4 is positioned at a second working position, a flow passage in the pipe column is sealed by the pitching ball 5, the pressure in the pipe column positioned at the upper part of the pitching ball 5 is gradually increased along with the continuous steam injection into the shaft, until the pressure for pushing the sliding sleeve 4 to move is reached, the sliding sleeve 4 rapidly moves downwards until the bottom end of the sliding sleeve 4 is contacted with the limiting ring 12, the movement is stopped, at the moment, the sliding sleeve 4 is positioned at the second working position, the steam inlet 41 is superposed with the expanding section 23 of the steam injection flow passage, namely, the steam inlet 41 is communicated with the expanding, the steam enters the position of the self-excitation type steam injection valve through the steam inlet flow channel, the steam inlet hole 41 and the steam injection flow channel in sequence, and at the moment, the steam in the valve body 1 forms a self-excitation mechanism under the combined action of the diameter expanding section 23, the diameter reducing section 22 and the nozzle 3, so that the erosion and cleaning capabilities are improved;
specifically, the inner diameter of the expanding section 23 is d1, the inner diameter of the reducing section 22 is d2, and the inner diameter of the nozzle 3 is d3, since d1>d2>d3, therefore (d1/d2)2Forming a convergent section of the entrance of the cavity, the lower part of the cavity being connected to the exit of the nozzle 3 (cavity exit) having an internal diameter d3, (d2/d3)2An outlet contraction section of the resonant cavity is formed, and the outlet contraction section is a self-excitation mechanism and a feedback mechanism; when stable steam flows, the contraction section can enable the steam flow to generate initial exciting pressure and can feed the exciting pressure back to the resonant cavity to form feedback pressure oscillation, when resonance is achieved, the steam flow generates large-structure interrupted vortex flow, huge pressure oscillation and high-strength cavitation jet flow, namely self-excited vibration cavitation jet flow, at the outlet, and the erosion and cleaning capacity of the steam is improved.
The utility model provides a vapour valve is annotated to auto-excitation formula through setting up the steam injection runner, makes the steam in the valve body 1 form auto-excitation mechanism under the combined action of the hole enlargement section 23 of steam injection runner, undergauge section 22 and nozzle 3, has increased erosion and cleaning power, makes casing wall and nearly wellbore area obtain effectual washing to realized the unblock processing of going on the oil reservoir at the in-process of annotating the vapour, and then made the exploitation effect of crude oil more ideal.
Furthermore, a plurality of steam injection runners are arranged at equal intervals, so that steam can be uniformly injected into a required layer, the casing wall and a near wellbore area can be uniformly eroded and cleaned, and the blockage removing efficiency is improved.
In an embodiment of the present invention, the steam injection flow passage is directly formed on the side wall of the valve body 1.
The utility model discloses an in a preferred embodiment, as shown in fig. 1 and fig. 2, consider if directly set up the through-hole on valve body 1 and form the steam injection runner, valve body 1 is washed away many times by the steam flow easily appears, lead to the problem that life reduces, in order to solve this problem, can be connected with a plurality of mounting brackets 6 of dismouting on the lateral wall of valve body 1, be equipped with the perforating hole in the mounting bracket 6, the perforating hole forms the steam injection runner, a plurality of mounting brackets 6 are arranged into at least round along the axial of valve body 1 promptly, the steam injection runner is formed in mounting bracket 6, the steam injection runner in mounting bracket 6 is washed away the back of corroding, it can to change new mounting bracket 6, and need not to change whole valve body 1, both prolonged the life of valve body 1, cost of maintenance will be reduced again.
Further, be equipped with the connecting hole 13 that is used for connecting mounting bracket 6 on the lateral wall of valve body 1, the notes vapour runner is linked together with admission passageway 11 through connecting hole 13, and connecting hole 13 is equipped with connects the internal thread, and mounting bracket 6 is equipped with the connection external screw thread, through connecting the internal thread and connecting the cooperation of connecing soon of external screw thread, and mounting bracket 6 is connected in valve body 1, and threaded connection's mode is simple and convenient for mounting bracket 6's installation and dismantlement easy operation are convenient.
Of course, the mounting frame 6 may also be connected to the side wall of the valve body 1 by other means, such as a connection pin or a matching of a slot and a buckle, and the description is omitted here.
Still further, in order to avoid in the steam inlet channel 11 of mounting bracket 6 screw in and influence the removal of sliding sleeve 4, connecting hole 13 includes along valve body 1 radially by outer connecting portion and the intercommunication portion that feeds through the setting in proper order to interior, the internal diameter of connecting portion is greater than the internal diameter of intercommunication portion, form the step face between connecting portion and intercommunication portion promptly, it sets up in connecting portion to connect the internal thread, the intercommunication portion is linked together with steam inlet channel 11, behind the 6 screw in connecting portion of mounting bracket, because the internal diameter of connecting portion is greater than the internal diameter of intercommunication portion, mounting bracket 6 can be restricted on the step face between connecting portion and intercommunication portion, can not stretch into steam inlet channel 11 and influence the removal of sliding sleeve 4.
Further, installation section 21 is equipped with the installation internal thread, and nozzle 3 is equipped with the installation external screw thread, and through the cooperation of connecing soon of installation internal thread and installation external screw thread, nozzle 3 is connected in annotating the vapour runner, and threaded connection's mode is simple and convenient for nozzle 3's installation and dismantlement easy operation are convenient.
The utility model discloses an in one embodiment, as shown in FIG. 1, the backstop ring 42 that has the centre bore that the lower terminal surface of setting portion for sliding sleeve 4 formed along circumference internal contraction, the centre bore diameter of backstop ring 42 is less than the diameter of bowling 5, after bowling 5 gets into sliding sleeve 4, under the limiting action of backstop ring 42, bowling 5 card is sealed at sliding sleeve 4's lower extreme and with sliding sleeve 4's lower extreme, along with constantly injecting the gas into the pit shaft, under the effect of gas pressure, it can promote sliding sleeve 4 and move downwards along admission passageway 11 to throw ball 5, until sliding sleeve 4's lower extreme butt spacing ring 12.
Or, sliding sleeve 4 is equipped with big-end-up's ladder through-hole (not shown in the figure) along the axial, and the seat portion is the ladder face of ladder through-hole, and after bowling 5 got into sliding sleeve 4, under the limiting action of backstop ring 42, bowling 5 card blocked the interior passageway of sliding sleeve 4 in sliding sleeve 4's ladder face department, along with constantly injecting steam into the pit shaft, under the effect of steam pressure, bowling 5 can promote sliding sleeve 4 and move down along steam inlet channel 11, until sliding sleeve 4's lower extreme butt spacing ring 12.
In an embodiment of the present invention, the connection between the limiting ring 12 and the valve body 1 is simple via pins (not shown), so that the installation and detachment of the limiting ring 12 are simple and convenient.
The utility model discloses an in another kind of concrete example, the lower part of admission passageway 11 is equipped with spacing internal thread, and spacing ring 12 is equipped with spacing external screw thread, connects the cooperation through revolving of spacing internal thread and spacing external screw thread, and spacing ring 12 is connected in valve body 1, and threaded connection's mode is simple reliable, can guarantee the joint strength between spacing ring 12 and the valve body 1.
To sum up, the utility model provides a vapour valve is annotated to auto-excitation formula, the fluid can produce initial excitement pressure in annotating the vapour passageway, can be with excitement pressure feedback resonant cavity again, form feedback pressure oscillation, when reaching resonance, the vapour produces the interrupted vortex circulation of big structure in the exit, huge pressure oscillation and high strength's cavitation efflux have increased erosion and cleaning power, make casing wall and near-wellbore area obtain effectual washing, thereby realized the unblock processing of going on the oil reservoir at the in-process of annotating the vapour, and then made the exploitation effect of crude oil more ideal.
The utility model provides a vapour valve is annotated to auto-excitation through the connection with mounting bracket ability dismouting on the valve body to annotate the vapour runner and set up on the mounting bracket, make behind the vapour erosion notes vapour runner, the mounting bracket of renewal can, need not to change whole valve body, both prolonged the life of valve body, will reduce cost of maintenance again.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention. Moreover, it should be noted that the components of the present invention are not limited to the above-mentioned integral application, and various technical features described in the present invention can be selected to be used alone or in combination according to actual needs, so that the present invention naturally covers other combinations and specific applications related to the invention of the present invention.
Claims (10)
1. A self-energizing steam injection valve, comprising:
the valve body is provided with an axially through steam inlet channel, and the lower part of the steam inlet channel is detachably connected with a limiting ring;
the steam injection device comprises at least one group of steam injection components arranged along the axial direction of the valve body, each steam injection component comprises a plurality of steam injection flow channels arranged along the circumferential direction of the valve body at intervals, each steam injection flow channel comprises an installation section, a reducing section and an expanding section which are sequentially communicated from outside to inside along the radial direction of the valve body, the inner diameter of the expanding section is larger than that of the reducing section, a nozzle is installed in the installation section and communicated with the reducing section, the inner diameter of the nozzle is smaller than that of the reducing section, and the expanding section is communicated with the steam inlet channel;
the sliding sleeve, it is the open cavity tube-shape in both ends, the sliding sleeve can axial displacement set up in the admission passageway, the outer peripheral face of sliding sleeve with the sealed cooperation of internal surface of admission passageway, be equipped with a plurality ofly respectively with each on the lateral wall of sliding sleeve the admission hole that the steam injection runner is linked together, the bottom of sliding sleeve is equipped with the seat portion that seals that supplies the ball seat to seal, the sliding sleeve has the butt the spacing ring and intercommunication the admission hole with the first operating position and the shutoff of steam injection runner the second operating position of steam injection runner.
2. The self-exciting steam injection valve according to claim 1,
the lateral wall of valve body on can the dismouting be connected with a plurality of mounting brackets, be equipped with the perforating hole in the mounting bracket, the perforating hole forms the notes vapour runner.
3. The self-exciting steam injection valve according to claim 2,
be equipped with on the lateral wall of valve body and be used for connecting the connecting hole of mounting bracket, the notes vapour runner passes through the connecting hole with the admission passageway is linked together, the connecting hole is equipped with connects the internal thread, the mounting bracket is equipped with and connects the external screw thread, through connect the internal thread with connect the cooperation of connecing soon of external screw thread, the mounting bracket connect in the valve body.
4. The self-exciting steam injection valve according to claim 3,
the connecting hole includes along connecting portion and the intercommunication portion that radially from outer to interior intercommunication set up of valve body, the internal diameter of connecting portion is greater than the internal diameter of intercommunication portion, connect the internal thread set up in the connecting portion, the intercommunication portion with steam admission passageway is linked together.
5. The self-exciting steam injection valve according to claim 1,
the installation section is equipped with the installation internal thread, the nozzle is equipped with the installation external screw thread, through the installation internal thread with the cooperation of connecing soon of installation external screw thread, the nozzle connect in annotate in the vapour runner.
6. The self-exciting steam injection valve according to claim 1,
the setting part is a stop ring which is formed by inward contraction of the lower end face of the sliding sleeve along the circumferential direction and is provided with a central hole, and the diameter of the central hole of the stop ring is smaller than that of the shot.
7. The self-exciting steam injection valve according to claim 1,
the sliding sleeve is provided with a step through hole with a large upper part and a small lower part along the axial direction, and the setting part is a step surface of the step through hole.
8. The self-exciting steam injection valve according to claim 1,
the limiting ring is connected with the valve body through a pin.
9. The self-exciting steam injection valve according to claim 1,
the lower part of the steam inlet channel is provided with a limiting internal thread, the limiting ring is provided with a limiting external thread, and the limiting internal thread is matched with the limiting external thread in a screwing manner, and the limiting ring is connected in the valve body.
10. The self-exciting steam injection valve according to any one of claims 1 to 9,
the plurality of steam injection runners are arranged at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920326727.7U CN210134907U (en) | 2019-03-14 | 2019-03-14 | Self-excitation type steam injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920326727.7U CN210134907U (en) | 2019-03-14 | 2019-03-14 | Self-excitation type steam injection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210134907U true CN210134907U (en) | 2020-03-10 |
Family
ID=69702613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920326727.7U Active CN210134907U (en) | 2019-03-14 | 2019-03-14 | Self-excitation type steam injection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210134907U (en) |
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2019
- 2019-03-14 CN CN201920326727.7U patent/CN210134907U/en active Active
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