CN204627558U - Drainage underground gas production system - Google Patents
Drainage underground gas production system Download PDFInfo
- Publication number
- CN204627558U CN204627558U CN201520171357.6U CN201520171357U CN204627558U CN 204627558 U CN204627558 U CN 204627558U CN 201520171357 U CN201520171357 U CN 201520171357U CN 204627558 U CN204627558 U CN 204627558U
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- gas
- nozzle
- inner core
- hole
- nozzle inner
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Abstract
The utility model discloses drainage underground gas production system, comprise and be fixed on packer in sleeve pipe and stationary magazine creel, the cavity that prestores, steam-water separator and pond is connected with in turn in the upper end of sleeve pipe, nozzle comprises nozzle inner core and nozzle housing, the end of nozzle housing is provided with spurt hole, arranges internal conical surface in nozzle inner core one end, and the nozzle inner core other end has just to the through hole of spurt hole, through-hole wall is provided with multiple swirl vane, in the middle part of nozzle inner core, is provided with the convective tank of annular.When starting under the promotion of the gas-fluid two-phase mixture in gas well at borehole pressure to rise, gas-liquid mixture enters into after in air inlet cavity and carries out volume compression through internal conical surface to it, and then improve the flowing velocity of gas-liquid mixture, when gas-liquid mixture enters eddy flow cavity, fluid and swirl vane contact with each other, by swirl vane, fluid driven is rotated, finally utilize the centrifugal force rotating generation to be thrown away from spurt hole by gas-liquid mixture.
Description
Technical field
The utility model relates to gas production field, down-hole, specifically refers to drainage underground gas production system.
Background technology
All ponding can be there is in shaft bottom in various degree at home in most gas well, for the gas well that there is end water or limit water, in recovery process, liquid-gas ratio will increase gradually, if adjustment liquid-gas ratio or shaft bottom hydrops get rid of well head not in time not in time, this can cause the normal production of gas well, even that gas well is drowned and cause stopping production, therefore the jacking capacity of correct Prediction gas well under liquid content in various degree selects the water drainage-gas recovery technology of suitable gas well to have important practical significance according to the actual conditions of gas well.
Liquid when gas well shaft bottom has just started to occur a small amount of hydrops in pit shaft can be utilized the climbing power of self to take pit shaft out of by gas, gas well can also normally be produced, at this moment the most stream flow velocity of gas well air-flow is called that liquid critical flow velocity taken by gas well, and corresponding gas flow is called that liquid critical flow taken by gas well; When in pit shaft, the actual flow velocity of gas is less than critical flow velocity, liquid in well just can not utilize the climbing power of self to take well head out of by air-flow.And in prior art, usual employing emple hole, liquid obtains larger kinetic energy after pressurization, after nozzle, liquid ejects with very large speed, under surface tension of liquid, viscosity and air resistance interact, liquid flows by dripping, smoothly, wave flow changes gradually to spray flow, finally conveniently realizes the two-phase laminated flow of gas-liquid; But because the current of discharging in emple hole have surface tension, therefore become in the process of spray flow at liquid rotating, need constantly could to meet liquid to down-hole pressurization there is when ejecting very high speed to occur to rub with ambient air and be separated atomization, then the air pressure of down-hole is higher, the safety reliability faced during gas production is lower, very easily causes security incident.
Utility model content
The purpose of this utility model is to provide drainage underground gas production system, facilitates gas-liquid independently to rise fast and discharges outside well, reach the object improving gas production safety reliability simultaneously.
The purpose of this utility model is achieved through the following technical solutions:
Drainage underground gas production system, comprise and be fixed on packer in sleeve pipe and stationary magazine creel, the cavity that prestores is connected with in turn in the upper end of described sleeve pipe, steam-water separator and pond, described stationary magazine creel has been threaded nozzle, the nozzle housing that described nozzle comprises nozzle inner core and is set in outside nozzle inner core, the end of nozzle housing is provided with spurt hole, in described nozzle inner core one end, internal conical surface is set, and the inwall of described internal conical surface and nozzle housing forms air inlet cavity, the nozzle inner core other end has just to the through hole of spurt hole, through-hole wall is provided with multiple swirl vane, and the inwall of through hole and nozzle inner core forms eddy flow cavity, also comprise the pore that two run through nozzle housing and nozzle inner core, the convective tank of annular is provided with in the middle part of nozzle inner core, two pores are symmetricly set on the two ends of convective tank, and the outlet side internal diameter of described pore successively decreases on the direction being radially directed towards axle center along nozzle inner core.To having in the recovery process of gas well of certain water content, sleeve pipe is placed in the gas-bearing formation at the end, ground, by packer, sleeve upper end and its lower end are completely cut off, in gas well, injection pressure promotion packer is opened and sleeve pipe upper and lower side is communicated with, and stationary magazine creel is installed nozzle, then spurt into by nozzle the cavity that prestores in the compressing of pressure interior gas-fluid two-phase mixture of going into the well, and prestore cavity and steam-water separator, pond connects successively, namely gas-liquid mixture is directly carried out the separation of gas-liquid two-phase after being injected into by nozzle the cavity that prestores by steam-water separator, isolated gas is discharged to the gathering-devices such as gasholder, isolated moisture then drains in pond,
When starting under the promotion of the gas-fluid two-phase mixture in gas well at borehole pressure to rise, gas-liquid mixture enters into after in air inlet cavity and carries out volume compression through internal conical surface to it, and then improve the flowing velocity of gas-liquid mixture, when gas-liquid mixture enters eddy flow cavity, fluid and swirl vane contact with each other, by swirl vane, fluid driven is rotated, finally utilize the centrifugal force rotating generation to be thrown away from spurt hole by gas-liquid mixture, when the flow of gas-liquid mixture is very little, when centrifugal force is greater than surface tension of liquid, be larger-size large drop by what throw away in spurt hole, now liquid directly splits into drop, when flow increases, liquid is become a fairly large number of thread jet by rotary splitter, the fluidised form extremely unstable of liquid, liquid leaves rotating vane end and after spraying a segment distance by spurt hole, directly and air generation rubbing action and be separated into droplet, form mitoschisis drop, when flow continues to increase, brin is interconnected to liquid film, along with liquid film is outwards extended to thinner liquid film, and occur to rub with very high speed and ambient air and be separated atomization, drop is split into by film-form, make to spray vaporific gas-liquid mixture at spurt hole, under the normal operating pressure used, the gas-liquid two-phase in gas well is extracted simultaneously, to facilitate the gas-liquid separation operation in later stage,
In the middle part of nozzle inner core, wherein have the convective tank of annular, air is injected to pore, the air poured into compresses at the end of pore, namely the jet velocity of air is increased further, and pore convective tank is annularly symmetrical arranged, and then have the air stream of two pore ejections mutually to liquidate, and a period of time to be carried out in convective tank, mix with air under the cylindrical environment that the gas-liquid mixture of flowing in eddy flow cavity is formed at convective tank, the gas-liquid mixture that swiftly flowing air and relatively low speed are moved or liquid film produces vibrations mutually, friction, liquid crushing is made to be tiny liquid, and then rise rapidly through the CENTRIFUGAL ACCELERATING of swirl vane, facilitate gas-liquid independently to rise fast and discharge outside well, reach the object improving gas production safety reliability simultaneously.
Further, the end of described nozzle inner core is provided with annular groove, and described eddy flow cavity is communicated with annular groove by circular hole.Annular space is formed between annular groove and the inwall of nozzle housing, gas-liquid mixture be about to by entering in annular space through circular hole during swirl vane, reduce gas-liquid mixture to a certain extent in the fluid layer movement velocity of eddy flow cavity near its inner wall section, gas-liquid mixture is avoided directly to impact swirl vane, affect the rotation of fluid after preventing swirl vane Local Damaged, improve the atomizing effect of gas-liquid mixture in spurt hole.
Further, also comprise the diffusion hole being opened in nozzle housing end, described diffusion hole is communicated with the outlet side of spurt hole.The misty liquid droplets range of scatter penetrated by spurt hole is comparatively large, and be unfavorable for the collection of aboveground operation to misty liquid droplets, the misty liquid droplets that the diffusion hole be communicated with spurt hole can spray radiation carries out gathering to be assembled, and makes it directly to enter in the container cavity in aboveground device.
The utility model compared with prior art, has following advantage and beneficial effect:
1, the utility model is when flow continues to increase, brin is interconnected to liquid film, along with liquid film is outwards extended to thinner liquid film, and occur to rub with very high speed and ambient air and be separated atomization, drop is split into by film-form, make to spray vaporific gas-liquid mixture at spurt hole, the gas-liquid two-phase in gas well is extracted, to facilitate the gas-liquid separation operation in later stage under the normal operating pressure used simultaneously;
2, annular space is formed between annular groove of the present utility model and the inwall of nozzle housing, gas-liquid mixture be about to by entering in annular space through circular hole during swirl vane, reduce gas-liquid mixture to a certain extent in the fluid layer movement velocity of eddy flow cavity near its inner wall section, gas-liquid mixture is avoided directly to impact swirl vane, affect the rotation of fluid after preventing swirl vane Local Damaged, improve the atomizing effect of gas-liquid mixture in spurt hole.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the utility model embodiment, forms a application's part, does not form the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of nozzle;
Fig. 3 is the structural representation of nozzle housing;
Fig. 4 is the structural representation of nozzle inner core;
Mark and corresponding component title in accompanying drawing:
1-nozzle housing, 2-air inlet cavity, 3-internal conical surface, 4-nozzle inner core, 5-eddy flow cavity, 6-annular groove, 7-swirl vane, 8-spurt hole, 9-diffusion hole, 10-convective tank, 11-pore, 12-sleeve pipe, 13-stationary magazine creel, 14-packer, 15-gas-bearing formation, 16-prestore cavity, 17-steam-water separator, 18-pond.
Detailed description of the invention
Clearly understand for making the purpose of this utility model, technical scheme and advantage, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only for explaining the utility model, and conduct is not to restriction of the present utility model.
Embodiment 1
As shown in Fig. 1 ~ 4, the present embodiment comprises and is fixed on packer 14 in sleeve pipe 12 and stationary magazine creel 13, the cavity 16 that prestores is connected with in turn in the upper end of described sleeve pipe 12, steam-water separator 17 and pond 18, described stationary magazine creel 13 has been threaded nozzle, wherein said nozzle comprises nozzle inner core 4 and is set in the nozzle housing 1 outside nozzle inner core 4, the end of nozzle housing 1 is provided with spurt hole 8, in described nozzle inner core 4 one end, internal conical surface 3 is set, and described internal conical surface 3 forms air inlet cavity 2 with the inwall of nozzle housing 1, nozzle inner core 4 other end has just to the through hole of spurt hole 8, through-hole wall is provided with multiple swirl vane 7, and the inwall of through hole and nozzle inner core 4 forms eddy flow cavity 5, also comprise the pore 11 that two run through nozzle housing 1 and nozzle inner core 4, the convective tank 10 of annular is provided with in the middle part of nozzle inner core 4, two pores 11 are symmetricly set on the two ends of convective tank 10, and the outlet side internal diameter of described pore 11 successively decreases on the direction being radially directed towards axle center along nozzle inner core 4.To having in the recovery process of gas well of certain water content, sleeve pipe 12 is placed in the gas-bearing formation at the end, ground, by packer 14, sleeve pipe 12 upper end and its lower end are completely cut off, in gas well, injection pressure promotion packer 14 is opened and sleeve pipe 12 upper and lower side is communicated with, and stationary magazine creel 13 is installed nozzle, then spurt into by nozzle the cavity 16 that prestores in the compressing of pressure interior gas-fluid two-phase mixture of going into the well, and prestore cavity 16 and steam-water separator 17, pond 18 connects successively, i.e. gas-liquid mixture direct separation being carried out gas-liquid two-phase by steam-water separator 17 after be injected into the cavity 16 that prestores by nozzle, isolated gas is discharged to the gathering-devices such as gasholder, isolated moisture then drains in pond 18,
When starting under the promotion of the gas-fluid two-phase mixture in gas well at borehole pressure to rise, gas-liquid mixture enters into after in air inlet cavity 2 and carries out volume compression through internal conical surface 3 to it, and then improve the flowing velocity of gas-liquid mixture, when gas-liquid mixture enters eddy flow cavity 5, fluid and swirl vane 7 contact with each other, by swirl vane 7, fluid driven is rotated, finally utilize the centrifugal force rotating generation to be thrown away from spurt hole 8 by gas-liquid mixture, when the flow of gas-liquid mixture is very little, when centrifugal force is greater than surface tension of liquid, be larger-size large drop by what throw away in spurt hole 8, now liquid directly splits into drop, when flow increases, liquid is become a fairly large number of thread jet by rotary splitter, the fluidised form extremely unstable of liquid, liquid leaves rotating vane end and after spraying a segment distance by spurt hole 8, directly and air generation rubbing action and be separated into droplet, form mitoschisis drop, when flow continues to increase, brin is interconnected to liquid film, along with liquid film is outwards extended to thinner liquid film, and occur to rub with very high speed and ambient air and be separated atomization, drop is split into by film-form, make to spray vaporific gas-liquid mixture at spurt hole 8, under the normal operating pressure used, the gas-liquid two-phase in gas well is extracted simultaneously, to facilitate the gas-liquid separation operation in later stage, in the middle part of nozzle inner core 4, wherein have the convective tank 10 of annular, air is injected to pore 11, the air poured into compresses at the end of pore 11, namely the jet velocity of air is increased further, and pore 11 convective tank 10 is annularly symmetrical arranged, and then the air stream having two pores 11 to spray liquidates mutually, and a period of time to be carried out in convective tank 10, mix with air under the cylindrical environment that the gas-liquid mixture of flowing in eddy flow cavity 5 is formed at convective tank 10, the gas-liquid mixture that swiftly flowing air and relatively low speed are moved or liquid film produces vibrations mutually, friction, liquid crushing is made to be tiny liquid, and then rise rapidly through the CENTRIFUGAL ACCELERATING of swirl vane 7, facilitate gas-liquid independently to rise fast and discharge outside well, reach the object improving gas production safety reliability simultaneously.
Wherein, the end of described nozzle inner core 4 is provided with annular groove 6, and described eddy flow cavity 5 is communicated with annular groove 6 by circular hole.Annular space is formed between the inwall of annular groove 6 and nozzle housing 1, gas-liquid mixture be about to by entering in annular space through circular hole during swirl vane 7, reduce gas-liquid mixture to a certain extent in the fluid layer movement velocity of eddy flow cavity 5 near its inner wall section, gas-liquid mixture is avoided directly to impact swirl vane 7, affect the rotation of fluid after preventing swirl vane 7 Local Damaged, improve the atomizing effect of gas-liquid mixture in spurt hole 8.
Also comprise the diffusion hole 9 being opened in nozzle housing 1 end, described diffusion hole 9 is communicated with the outlet side of spurt hole 8.The misty liquid droplets range of scatter penetrated by spurt hole 8 is comparatively large, and be unfavorable for the collection of aboveground operation to misty liquid droplets, the misty liquid droplets that the diffusion hole 9 be communicated with spurt hole 8 can spray radiation carries out gathering to be assembled, and makes it directly to enter in the container cavity in aboveground device.
Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only detailed description of the invention of the present utility model; and be not used in restriction protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. drainage underground gas production system, comprise and be fixed on packer (14) in sleeve pipe (12) and stationary magazine creel (13), it is characterized in that: be connected with the cavity that prestores (16) in turn in the upper end of described sleeve pipe (12), steam-water separator (17) and pond (18), described stationary magazine creel (13) has been threaded nozzle, described nozzle comprises nozzle inner core (4) and is set in nozzle inner core (4) nozzle housing outward (1), the end of nozzle housing (1) is provided with spurt hole (8), in described nozzle inner core (4) one end, internal conical surface (3) is set, and described internal conical surface (3) forms air inlet cavity (2) with the inwall of nozzle housing (1), nozzle inner core (4) other end has just to the through hole of spurt hole (8), through-hole wall is provided with multiple swirl vane (7), and the inwall of through hole and nozzle inner core (4) forms eddy flow cavity (5), also comprise the pore (11) that two run through nozzle housing (1) and nozzle inner core (4), the convective tank (10) of annular is provided with at nozzle inner core (4) middle part, two pores (11) are symmetricly set on the two ends of convective tank (10), and the outlet side internal diameter of described pore (11) successively decreases on the direction being radially directed towards axle center along nozzle inner core (4).
2. drainage underground gas production system according to claim 1, is characterized in that: the end of described nozzle inner core (4) is provided with annular groove (6), and described eddy flow cavity (5) is communicated with annular groove (6) by circular hole.
3. drainage underground gas production system according to claim 1 and 2, is characterized in that: also comprise the diffusion hole (9) being opened in nozzle housing (1) end, described diffusion hole (9) is communicated with the outlet side of spurt hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520171357.6U CN204627558U (en) | 2015-03-26 | 2015-03-26 | Drainage underground gas production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520171357.6U CN204627558U (en) | 2015-03-26 | 2015-03-26 | Drainage underground gas production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204627558U true CN204627558U (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520171357.6U Expired - Fee Related CN204627558U (en) | 2015-03-26 | 2015-03-26 | Drainage underground gas production system |
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| CN (1) | CN204627558U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775794A (en) * | 2015-03-26 | 2015-07-15 | 成都来宝石油设备有限公司 | Gas production system for water-gas well |
| CN115387760A (en) * | 2021-05-25 | 2022-11-25 | 中国石油化工股份有限公司 | Jet cyclone device, self-circulation jet cyclone drainage gas production system and method |
-
2015
- 2015-03-26 CN CN201520171357.6U patent/CN204627558U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775794A (en) * | 2015-03-26 | 2015-07-15 | 成都来宝石油设备有限公司 | Gas production system for water-gas well |
| CN115387760A (en) * | 2021-05-25 | 2022-11-25 | 中国石油化工股份有限公司 | Jet cyclone device, self-circulation jet cyclone drainage gas production system and method |
| CN115387760B (en) * | 2021-05-25 | 2024-05-17 | 中国石油化工股份有限公司 | Jet swirling device, self-circulation jet swirling drainage gas production system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20160326 |