CN206267816U - Continuous negative pressure sand flushing device and its system - Google Patents
Continuous negative pressure sand flushing device and its system Download PDFInfo
- Publication number
- CN206267816U CN206267816U CN201621411114.6U CN201621411114U CN206267816U CN 206267816 U CN206267816 U CN 206267816U CN 201621411114 U CN201621411114 U CN 201621411114U CN 206267816 U CN206267816 U CN 206267816U
- Authority
- CN
- China
- Prior art keywords
- pipe
- sand
- clean out
- negative pressure
- continuous negative
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model is related to oilfield sand washing technical field, more particularly to a kind of continuous negative pressure sand flushing device and its system.The continuous negative pressure sand flushing device includes setting gradually sleeve pipe, bushing pipe and sand clean out pipe from outside to inside；Sand clean out pipe is provided with pod apertures, jet pump and sand washing head from top to bottom；Liner at its lower end is slidingly sealed with sand clean out pipe, and sap cavity is formed out between bushing pipe and sand clean out pipe；The interior lumen of sand clean out pipe is connected by pod apertures with sap cavity is gone out；Sleeve pipe is slidingly sealed with sand clean out pipe by first seal；Fluid injection chamber is formed between first seal, bushing pipe and sand clean out pipe and sleeve pipe；Liquid in fluid injection chamber is sprayed into the interior lumen of sand clean out pipe by jet pump and carries the liquid for coming from scouring sluice.The continuous negative pressure sand washing system includes continuous negative pressure sand flushing device and working rig.The purpose of this utility model is to provide continuous negative pressure sand flushing device and its system, to solve to drag for sand job execution inefficiency present in prior art, and the easy polluted reservoir technical problem of sand washing.
Description
Technical field
The utility model is related to oilfield sand washing technical field, more particularly to a kind of continuous negative pressure sand flushing device and its system.
Background technology
After sand production, if the liquid stream in well can not be by sand whole band to ground, sand is gradually deposited in well, and sand post increases
Height, blocks oil discharge passage, increases flow resistance, the oil well underproduction is even stopped production.Underground equipment can be damaged causes sand card thing simultaneously
Therefore.Therefore, it is necessary to take measures to remove long-pending sand, this problem is generally solved using sand washing.
Sand washing is to be broken up shaft bottom sand plug with swiftly flowing liquid, and borrows the circulation ability returned in the circulation of liquid stream, will
The sand for breaking up takes ground out of, so as to remove the long-pending sand in shaft bottom, recovers and improve the injection rate of well yield or water injection well.
Existing to drag for sand operating type, its desanding efficiency is low, easy polluted reservoir；Especially some low pressure wells, well in debt or
The well of oil layer pollution is easily caused during sand washing, desanding operation is carried out using existing sand mode of dragging for, its desanding efficiency is lower.
Utility model content
The purpose of this utility model is to provide continuous negative pressure sand flushing device and its system, to solve to exist in the prior art
Drag for sand job execution inefficiency, and the easy polluted reservoir technical problem of sand washing.
The continuous negative pressure sand flushing device that the utility model is provided, including sleeve pipe, bushing pipe and the sand clean out pipe for setting gradually from outside to inside；
The sand clean out pipe is disposed with pod apertures, jet pump and sand washing head from top to bottom；The sand washing head is arranged on institute
The lower end of sand clean out pipe is stated, and the sand washing head has the scouring sluice connected with the interior lumen of the sand clean out pipe；
The length of the length of described sleeve pipe and the sand clean out pipe is longer than the length of the bushing pipe；The lower end of the bushing pipe and institute
State sand clean out pipe to be slidingly sealed, and formed between the bushing pipe and the sand clean out pipe and closed go out sap cavity；The inner tube of the sand clean out pipe
Chamber by the pod apertures with it is described go out sap cavity connect；The top of the bushing pipe be provided with it is described go out the liquid outlet that connects of sap cavity；
Described sleeve pipe is slidingly sealed with the sand clean out pipe by first seal, and the first seal be arranged at it is described
Between jet pump and the sand washing head；Formed between the first seal, the bushing pipe and the sand clean out pipe and described sleeve pipe
Closed fluid injection chamber；The fluid injection chamber is connected by the jet pump with the interior lumen of the sand clean out pipe, so that the fluid injection
Liquid in chamber is sprayed into the interior lumen of the sand clean out pipe by the jet pump and carries the liquid for coming from the scouring sluice
Body；The top of described sleeve pipe is provided with the liquid injection port connected with the fluid injection chamber.
Further, the first seal is fixedly connected with described sleeve pipe.
Further, the lower end of the bushing pipe is fixedly installed the second seal being slidingly sealed with the sand clean out pipe.
Further, the sand clean out pipe includes the first pipe portion, the second pipe portion and the 3rd pipe portion that are fixedly connected sequentially from top to bottom；
First pipe portion is slidingly sealed with the second seal；
3rd pipe portion is slidingly sealed with the first seal.
Further, the pod apertures are arranged in first pipe portion；The jet pump is arranged in the 3rd pipe portion.
Further, first pipe portion and the 3rd pipe portion are without coupling pipe, and second pipe portion is oil pipe.
Further, the first seal is packer.
Further, described continuous negative pressure sand flushing device also include being enclosed within outward top four-way outside the sand clean out pipe and
The bottom four-way outside the bushing pipe is enclosed within outward, and the top four-way is arranged on above the bottom four-way；
The top four-way by the liquid outlet with it is described go out sap cavity connect；
The bottom four-way is connected by the liquid injection port with the fluid injection chamber.
Further, described continuous negative pressure sand flushing device also includes being installed in the blind flange on the top four-way top；
Self-styled leather cup is crimped between the blind flange and the top four-way, institute is passed through between the top four-way and the sand clean out pipe
State self-styled cup packing；
The upper end of the bushing pipe is installed with bushing pipe extension；Along the radial direction of the bushing pipe, the bushing pipe is hung and protrudes from the bushing pipe；
The bushing pipe is crimped between the top four-way and the bottom four-way to hang；
The sidepiece of the top four-way is provided with sand cleaning fluid outlet, and the sidepiece of the bottom four-way is provided with sand cleaning fluid entrance.
The continuous negative pressure sand washing system that the utility model is provided, including described continuous negative pressure sand flushing device, also including working rig；
The working rig is connected with the sand clean out pipe, for controlling the sand clean out pipe to be moved up and down along described sleeve pipe.
The utility model provide continuous negative pressure sand flushing device and its system, including set gradually from outside to inside sleeve pipe,
Bushing pipe and sand clean out pipe；Sand cleaning fluid is input into by from the liquid injection port of sleeve pipe, is flowed through close by being formed between bushing pipe and sand clean out pipe and sleeve pipe
The fluid injection chamber closed, in input jet pump；Sand cleaning fluid sprays from the nozzle at high speeds of jet pump and enters the interior lumen of sand clean out pipe, this
When form negative pressure in the interior lumen bottom of sand clean out pipe, in the presence of negative pressure, the sand grains in shaft bottom or the liquid with sand grains from
The scouring sluice of sand washing head is inhaled into the interior lumen of sand clean out pipe；The sand grains in shaft bottom or liquid and sand cleaning fluid with sand grains afterwards
Mixing, flows out the interior lumen of sand clean out pipe, and flow into close by what is formed between bushing pipe and sand clean out pipe by the pod apertures of sand clean out pipe
That closes goes out sap cavity, is exported to well through the liquid outlet of bushing pipe.The continuous negative pressure sand flushing device can be realized to the continuous of oil reservoir sand section
Negative pressure sand washing, sand washing efficiency high is particularly suited for sand output well high, well in debt, can one-stop operation punch whole sands in well, also not
Easy polluted reservoir；Other sand clean out pipe is reusable, reduces the construction workload of next sand washing.
Brief description of the drawings
In order to illustrate more clearly of the utility model specific embodiment or technical scheme of the prior art, below will be right
The accompanying drawing to be used needed for specific embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some implementation methods of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the continuous negative pressure sand flushing device that the utility model embodiment one is provided；
Fig. 2 is the A areas partial enlarged drawing of the continuous negative pressure sand flushing device shown in Fig. 1；
Fig. 3 is the B areas partial enlarged drawing of the continuous negative pressure sand flushing device shown in Fig. 1；
Fig. 4 is the structural representation of the continuous negative pressure sand washing system that the utility model embodiment two is provided.
Reference：
1- sleeve pipes；11- first seals；12- second seals；
2- bushing pipes；21- bushing pipes are hung；3- sand clean out pipe；
31- pod apertures；32- jet pumps；33- sand washing heads；
331- scouring sluices；The pipe portions of 34- first；The pipe portions of 35- second；
The pipe portions of 36- the 3rd；4- goes out sap cavity；5- fluid injections chamber；
6- tops four-way；61- sand cleaning fluids are exported；7- bottoms four-way；
71- sand cleaning fluid entrances；8- blind flanges；The self-styled leather cups of 9-；
101- continuous negative pressure sand flushing devices；102- working rigs.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, this
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
It is term " " center ", " on ", D score, "left", "right", " perpendicular, it is necessary to explanation in description of the present utility model
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outward " are, based on orientation shown in the drawings or position relationship, to be only
Described with simplified for the ease of description the utility model, must had rather than the device or element for indicating or implying meaning specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
Can be two connections of element internal.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Embodiment one
Referring to shown in Fig. 1-Fig. 3, present embodiments providing a kind of continuous negative pressure sand flushing device；Fig. 1 is provided for the present embodiment
Continuous negative pressure sand flushing device structural representation；Fig. 2 is the A areas partial enlarged drawing of the continuous negative pressure sand flushing device shown in Fig. 1；
Fig. 3 is the B areas partial enlarged drawing of the continuous negative pressure sand flushing device shown in Fig. 1.
Referring to shown in Fig. 1-Fig. 3, the continuous negative pressure sand flushing device that the present embodiment is provided, including set gradually from outside to inside
Sleeve pipe 1, bushing pipe 2 and sand clean out pipe 3；The outside of bushing pipe 2 is enclosed within outside sleeve pipe 1, the outside of sand clean out pipe 3 is enclosed within outside bushing pipe 2.It is preferred that
Ground, sleeve pipe 1 is relatively fixed relative to the position of bushing pipe 2.
Sand clean out pipe 3 is disposed with pod apertures 31, jet pump 32 and sand washing head 33 from top to bottom；Sand washing head 33 is arranged on punching
The lower end of sandpipe 3, and sand washing head 33 has the scouring sluice 331 connected with the interior lumen of sand clean out pipe 3；Scouring sluice 331 can set
Put in the bottom of sand washing head 33, it is also possible to be arranged on the sidepiece of sand washing head 33.Alternatively, the quantity of scouring sluice 331 be 1 or
It is multiple；Alternatively, the cross sectional shape of scouring sluice 331 is circle, rectangle, ellipse, irregular figure or other figures.
The length of sleeve pipe 1 and the length of sand clean out pipe 3 are longer than the length of bushing pipe 2；Slided with sand clean out pipe 3 lower end of bushing pipe 2
Sealing, and formed between bushing pipe 2 and sand clean out pipe 3 and closed go out sap cavity 4；The interior lumen of sand clean out pipe 3 passes through pod apertures 31 and goes out
Sap cavity 4 is connected；The top of bushing pipe 2 is provided with and goes out the liquid outlet that sap cavity 4 is connected.
Sleeve pipe 1 is slidingly sealed with sand clean out pipe 3 by first seal 11, and first seal 11 is arranged at the He of jet pump 32
Between sand washing head 33；Closed fluid injection chamber 5 is formed between first seal 11, bushing pipe 2 and sand clean out pipe 3 and sleeve pipe 1；Fluid injection chamber 5
Connected with the interior lumen of sand clean out pipe 3 by jet pump 32, so that the liquid in fluid injection chamber 5 sprays into sand clean out pipe by jet pump 32
3 interior lumen is interior and carries the nozzle at high speeds that the liquid for coming from scouring sluice 331, the i.e. liquid such as sandblasting liquid inject jet pump 32
The interior lumen of sand clean out pipe 3 is sprayed and entered, and negative pressure is formed in the interior lumen bottom of sand clean out pipe 3, in the presence of negative pressure,
The sand grains in shaft bottom or the liquid with sand grains are inhaled into the interior lumen of sand clean out pipe 3 from the scouring sluice 331 of sand washing head 33；Also
It is to say that the liquid in fluid injection chamber 5 is sprayed into out in sap cavity 4 by jet pump 32 and carries the liquid for coming from scouring sluice 331.
The top of sleeve pipe 1 is provided with the liquid injection port connected with fluid injection chamber 5.
Continuous negative pressure sand flushing device described in the present embodiment, including sleeve pipe 1, bushing pipe 2 and the punching for setting gradually from outside to inside
Sandpipe 3；Sand cleaning fluid is input into by from the liquid injection port of sleeve pipe 1, is flowed through and is formed closed by between bushing pipe 2 and sand clean out pipe 3 and sleeve pipe 1
Fluid injection chamber 5, in input jet pump 32；Sand cleaning fluid sprays from the nozzle at high speeds of jet pump 32 and enters the interior lumen of sand clean out pipe 3,
Now negative pressure, in the presence of negative pressure, the sand grains in shaft bottom or the liquid with sand grains are formed in the interior lumen bottom of sand clean out pipe 3
It is inhaled into the interior lumen of sand clean out pipe 3 from the scouring sluice 331 of sand washing head 33；The sand grains in shaft bottom or the liquid with sand grains afterwards
Mix with sand cleaning fluid, flow out the interior lumen of sand clean out pipe 3 by the pod apertures 31 of sand clean out pipe 3, and flow into by bushing pipe 2 and sand clean out pipe
Formed between 3 it is closed go out sap cavity 4, exported to well through the liquid outlet of bushing pipe 2.It is right that the continuous negative pressure sand flushing device can be realized
The continuous negative pressure sand washing of oil reservoir sand section, sand washing efficiency high is particularly suited for sand output well high, well in debt, can one-stop operation punch well
Interior whole sands, are also less prone to polluted reservoir；Other sand clean out pipe 3 is reusable, reduces the construction workload of next sand washing.
In the alternative of the present embodiment, first seal 11 is fixedly connected with sleeve pipe 1, so that first seal 11 is outer
Side face is fixed with sleeve pipe 1, is not subjected to displacement substantially relative to sleeve pipe 1, and the inner peripheral surface of first seal 11 is slided with sand clean out pipe 3 and connected
Connect, improve the service life of first seal 11.
Preferably, first seal 11 is packer；The outer surface of packer uses elastomeric material, such as rubber or silicon
Glue etc.；The inner surface of packer uses rigid material, such as stainless steel, iron, copper etc.；The outer surface of packer is fixed with sleeve pipe 1,
Inner surface is slidably connected with sand clean out pipe 3, and when sand clean out pipe 3 is slided relative to first seal 11, it uses the longevity to rigid material
Life is longer, extends the service life of first seal 11.
In real work, first seal 11 has certain wastage, and the wastage can mend liquid in fluid injection chamber 5
Shaft bottom is charged to, is mixed with the sand grains or sand grains liquid in shaft bottom, improve the prop-carrying capacity in shaft bottom.
In the alternative of the present embodiment, the lower end of bushing pipe 2 is fixedly installed the second sealing being slidingly sealed with sand clean out pipe 3
Part 12.Second seal 12 for example can be sealing ring, packer etc..By setting second seal 12, with simplify bushing pipe 2 with
Structure between sand clean out pipe 3.
It will be understood by those skilled in the art that the lower end of bushing pipe 2 and sand clean out pipe 3 be slidingly sealed can also be by other means
Realize, such as lower end of bushing pipe 2 is in taper type, the bore of the lower end bore of bushing pipe 2 substantially with sand clean out pipe 3 is identical, can slide
It is tightly connected.
In the alternative of the present embodiment, sand clean out pipe 3 includes the first pipe portion 34, second being fixedly connected sequentially from top to bottom
The pipe portion 36 of pipe portion 35 and the 3rd.
First pipe portion 34 is slidingly sealed with second seal 12；Preferably, when sand clean out pipe 3 is slided up and down, the first pipe portion 34
All the time it is slidingly sealed with second seal 12；
3rd pipe portion 36 is slidingly sealed with first seal 11；Preferably, when sand clean out pipe 3 is slided up and down, the 3rd pipe portion 36
All the time it is slidingly sealed with first seal 11.It is close with second seal 12, first to finish by setting three part tube portion
The first pipe portion 34, the 3rd pipe portion 36 that sealing 11 is slidingly sealed, the second pipe portion of roughing 35 reduce the outer surface of the second pipe portion 35
Surface flatness, and then reduce sand clean out pipe 3 cost, be also convenient for sand clean out pipe 3 and moved up and down relative to sleeve pipe 1, bushing pipe 2.
Further, pod apertures 31 are arranged in the first pipe portion 34；Jet pump 32 is arranged in the 3rd pipe portion 36.
Alternatively, the first pipe portion 34 and the 3rd pipe portion 36 are without coupling pipe, and the second pipe portion 35 is oil pipe.By without box cupling
Pipe to meet the smoothness of the first pipe portion 34 and the outer surface of the 3rd pipe portion 36, by oil pipe with reduce the material of the second pipe portion 35 into
This.
In the alternative of the present embodiment, the continuous negative pressure sand flushing device is also upper outside sand clean out pipe 3 including being enclosed within outward
Portion's four-way 6 and the bottom four-way 7 being enclosed within outward outside bushing pipe 2, top four-way 6 are arranged on above bottom four-way 7.
Top four-way 6 is connected by liquid outlet with sap cavity 4 is gone out；Top four-way 6 is not connected with fluid injection chamber 5；Namely the lining
Cavity between pipe 2 and the sand clean out pipe 3 is connected with top four-way 6.
Bottom four-way 7 is connected by liquid injection port with fluid injection chamber 5；Bottom four-way 7 not with go out sap cavity 4 and connect；Namely the set
Cavity between pipe 1 and the bushing pipe 2 is connected with bottom four-way 7.By top four-way 6, bottom four-way 7 conveniently connecting
Female connector pipe 1, bushing pipe 2 and sand clean out pipe 3, and then be easy to assemble continuous negative pressure sand flushing device.
Further, the continuous negative pressure sand flushing device also includes being installed in the blind flange 8 on the top of top four-way 6；Flange
Self-styled leather cup 9 is crimped between lid 8 and top four-way 6, is sealed by self-styled leather cup 9 between top four-way 6 and sand clean out pipe 3；It is logical
Cross self-styled leather cup 9, top four-way 6, bushing pipe 2 and sand clean out pipe 3 and formed and closed go out sap cavity 4.
For the ease of fixed installation bushing pipe 2, it is preferable that be installed with bushing pipe in the upper end of bushing pipe 2 and hang 21；Along the footpath of bushing pipe 2
To bushing pipe hangs 21 and protrudes from bushing pipe 2；Bushing pipe is crimped between top four-way 6 and bottom four-way 7 and hangs 21.
The sidepiece of top four-way 6 is provided with sand cleaning fluid outlet 61, in order to connecting line, so as to be mixed with shaft bottom sand grains, punching
The mixed liquor of sand liquid flows to ground, above well, mixing liquid is utilized through being repeated after precipitation and filtering afterwards.Bottom four-way 7
Sidepiece is provided with sand cleaning fluid entrance 71, in order to connecting line, so that sand cleaning fluid injection continuous negative pressure sand flushing device.
Embodiment two
Embodiment two provides a kind of continuous negative pressure sand washing system, and the embodiment includes the continuous negative pressure described in embodiment one
Sand flushing device, the technical characteristic of the continuous negative pressure sand flushing device disclosed in embodiment one is also applied for the embodiment, embodiment one
The technical characteristic of published continuous negative pressure sand flushing device is not repeated description.
The structural representation of the continuous negative pressure sand washing system that Fig. 4 is provided for the utility model embodiment.
It is shown in Figure 4, the continuous negative pressure sand washing system that the present embodiment is provided, including continuous negative pressure sand flushing device 101, also
Including working rig 102.
Working rig 102 is connected with sand clean out pipe, for controlling sand clean out pipe to be moved up and down along sleeve pipe；Preferably, sleeve pipe and bushing pipe
It is fixedly connected, working rig 102 also can control sand clean out pipe and be moved up and down along bushing pipe.Preferably, sand clean out pipe along sleeve pipe axis direction
Move up and down.Moved toward shaft bottom in order to sand clean out pipe by working rig 102, the sand grains in continuous removal shaft bottom, sand washing efficiency high, especially
It is applied to sand output well high, well in debt, can one-stop operation punch whole sands in well, be also less prone to polluted reservoir.
The system of continuous negative pressure sand washing described in the present embodiment has the excellent of continuous negative pressure sand flushing device 101 described in embodiment one
Point, the advantage of the continuous negative pressure sand flushing device 101 disclosed in embodiment one is not repeated description herein.
Finally it should be noted that：Various embodiments above is only used to illustrate the technical solution of the utility model, rather than it is limited
System；Although being described in detail to the utility model with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
1. a kind of continuous negative pressure sand flushing device, it is characterised in that including the sleeve pipe, bushing pipe and the sand washing that set gradually from outside to inside
Pipe；
The sand clean out pipe is disposed with pod apertures, jet pump and sand washing head from top to bottom；The sand washing head is arranged on the punching
The lower end of sandpipe, and the sand washing head has the scouring sluice connected with the interior lumen of the sand clean out pipe；
The length of the length of described sleeve pipe and the sand clean out pipe is longer than the length of the bushing pipe；The lower end of the bushing pipe with it is described
Sand clean out pipe is slidingly sealed, and is formed between the bushing pipe and the sand clean out pipe and closed go out sap cavity；The inner tube of the sand clean out pipe
Chamber by the pod apertures with it is described go out sap cavity connect；The top of the bushing pipe be provided with it is described go out sap cavity connect go out liquid
Mouthful；
Described sleeve pipe is slidingly sealed with the sand clean out pipe by first seal, and the first seal is arranged at the jet
Between pump and the sand washing head；Form closed between the first seal, the bushing pipe and the sand clean out pipe and described sleeve pipe
Fluid injection chamber；The fluid injection chamber is connected by the jet pump with the interior lumen of the sand clean out pipe, so that in the fluid injection chamber
Liquid pass through that the jet pump is sprayed into the interior lumen of the sand clean out pipe and carrying comes from the liquid of the scouring sluice；Institute
The top for stating sleeve pipe is provided with the liquid injection port connected with the fluid injection chamber.
2. continuous negative pressure sand flushing device according to claim 1, it is characterised in that the first seal and described sleeve pipe
It is fixedly connected.
3. continuous negative pressure sand flushing device according to claim 1 and 2, it is characterised in that the lower end of the bushing pipe is fixed and set
It is equipped with the second seal being slidingly sealed with the sand clean out pipe.
4. continuous negative pressure sand flushing device according to claim 3, it is characterised in that the sand clean out pipe include from top to bottom according to
Secondary the first pipe portion being fixedly connected, the second pipe portion and the 3rd pipe portion；
First pipe portion is slidingly sealed with the second seal；
3rd pipe portion is slidingly sealed with the first seal.
5. continuous negative pressure sand flushing device according to claim 4, it is characterised in that the pod apertures are arranged on described first
In pipe portion；The jet pump is arranged in the 3rd pipe portion.
6. continuous negative pressure sand flushing device according to claim 4, it is characterised in that first pipe portion and the 3rd pipe
Portion is without coupling pipe, and second pipe portion is oil pipe.
7. continuous negative pressure sand flushing device according to claim 1 and 2, it is characterised in that the first seal is packing
Device.
8. continuous negative pressure sand flushing device according to claim 1 and 2, it is characterised in that also including being enclosed within the sand washing outward
Top four-way outside pipe and the bottom four-way being enclosed within outward outside the bushing pipe, the top four-way are arranged on the bottom four-way
Above；
The top four-way by the liquid outlet with it is described go out sap cavity connect；
The bottom four-way is connected by the liquid injection port with the fluid injection chamber.
9. continuous negative pressure sand flushing device according to claim 8, it is characterised in that also including being installed in the top four-way
The blind flange on top；Self-styled leather cup, the top four-way and the punching are crimped between the blind flange and the top four-way
By the self-styled cup packing between sandpipe；
The upper end of the bushing pipe is installed with bushing pipe extension；Along the radial direction of the bushing pipe, the bushing pipe is hung and protrudes from the bushing pipe；It is described
The bushing pipe is crimped between top four-way and the bottom four-way to hang；
The sidepiece of the top four-way is provided with sand cleaning fluid outlet, and the sidepiece of the bottom four-way is provided with sand cleaning fluid entrance.
10. a kind of continuous negative pressure sand washing system, it is characterised in that including the continuous negative pressure punching described in claim any one of 1-9
Sand device, also including working rig；
The working rig is connected with the sand clean out pipe, for controlling the sand clean out pipe to be moved up and down along described sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621411114.6U CN206267816U (en) | 2016-12-20 | 2016-12-20 | Continuous negative pressure sand flushing device and its system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621411114.6U CN206267816U (en) | 2016-12-20 | 2016-12-20 | Continuous negative pressure sand flushing device and its system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206267816U true CN206267816U (en) | 2017-06-20 |
Family
ID=59046465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621411114.6U Active CN206267816U (en) | 2016-12-20 | 2016-12-20 | Continuous negative pressure sand flushing device and its system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206267816U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677727A (en) * | 2016-12-20 | 2017-05-17 | 西安迈克斯石油技术有限公司 | Continuous negative pressure sand washing device and system thereof |
| CN114941510A (en) * | 2022-06-17 | 2022-08-26 | 程显达 | Circulation unblocking sand fishing process system |
-
2016
- 2016-12-20 CN CN201621411114.6U patent/CN206267816U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677727A (en) * | 2016-12-20 | 2017-05-17 | 西安迈克斯石油技术有限公司 | Continuous negative pressure sand washing device and system thereof |
| CN114941510A (en) * | 2022-06-17 | 2022-08-26 | 程显达 | Circulation unblocking sand fishing process system |
| CN114941510B (en) * | 2022-06-17 | 2024-03-22 | 盘锦博瑞石油工程有限公司 | Circulating blocking-removing sand-fishing process system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102094586B (en) | Application method of ground sand washing device for horizontal well | |
| CN201705249U (en) | Continuous jet blockage-removing string for horizontal wells | |
| CN206267816U (en) | Continuous negative pressure sand flushing device and its system | |
| CN106677727A (en) | Continuous negative pressure sand washing device and system thereof | |
| CN113279710A (en) | Deep well sand removal system | |
| CN107676051A (en) | Coal dust device and method are dragged in a kind of coal bed gas well annular space supercharging | |
| CN103867148A (en) | Concentric-tube pulverized coal discharging system and method for coal-bed gas well | |
| CN202788688U (en) | Underground well leakage-proof sand washing device | |
| CN114941510B (en) | Circulating blocking-removing sand-fishing process system | |
| CN204703809U (en) | A kind of water supply well concentric double pipe sand-flushing process pipe string | |
| CN203879424U (en) | Novel continuous sand removal device for oil and water well | |
| CN108442916A (en) | Horizontal well bore hole screen casing damage testing tubing string | |
| CN204041041U (en) | Oil well increases liquid device | |
| CN204961423U (en) | Special buggy jet pump of arranging of coal seam gas well | |
| CN204003391U (en) | Solid plunger sand-proof oil-well pump | |
| CN212337224U (en) | Fracturing temporary plugging agent adding device with good flow guide capacity | |
| CN204941878U (en) | Sand-proof oil-well pump | |
| CN204532255U (en) | Ground hydraulic open-type down-hole drainage device | |
| CN209195305U (en) | A kind of continuous inverse circular sand washing adapter Flushing tubular column | |
| CN208934658U (en) | Downhole production and backwash dual function valve | |
| CN207229045U (en) | A kind of continuous reverse sand flushing device of oil well | |
| CN106121590A (en) | Radial level boring is windowed filter back flush apparatus | |
| CN207177842U (en) | Retracting device and there is its oil well | |
| CN206158706U (en) | Seperated layer water injection well self -commutation water injection mandrel | |
| CN206769851U (en) | The process pipe string of negative pressure sand washing is realized using coiled tubing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |