CN206722809U - A kind of flow string - Google Patents
A kind of flow string Download PDFInfo
- Publication number
- CN206722809U CN206722809U CN201720527796.5U CN201720527796U CN206722809U CN 206722809 U CN206722809 U CN 206722809U CN 201720527796 U CN201720527796 U CN 201720527796U CN 206722809 U CN206722809 U CN 206722809U
- Authority
- CN
- China
- Prior art keywords
- outer tube
- tube body
- sealing shroud
- filtering sand
- sand apparatus
- 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.)
- Expired - Fee Related
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- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a kind of flow string, including outer tube body and the oil pick-up tube being arranged in outer tube body, the outer tube body lower end is connected with filtering sand apparatus, sealing shroud is additionally provided between the filtering sand apparatus and the outer tube body, the inwall of the sealing shroud fits with the outer tube body, and multiple annular protrusions are provided with the inwall of the sealing shroud, the storage tank being engaged with the annular protrusion is provided with the outer tube body, filtering sand apparatus described in the sealing shroud is threadedly coupled, and the bottom of the sealing shroud is additionally provided with annular ring.The utility model sets sealing shroud between outer tube body and filtering sand apparatus, wherein sealing shroud can not only seal to space between the two, outer tube body and filtering sand apparatus are attached simultaneously, the setting of annular protrusion and annular ring is further wrapped up outer tube body on sealing shroud, while also sealing is strengthened with the threaded connection of filtering sand apparatus.
Description
Technical field
The utility model belongs to the technical field of oil recovery apparatus, is related to a kind of flow string.
Background technology
Influenceed by geological conditions, some oil field subsurface structures are complicated, belong to many types of reservoir and more constructions, multilayer
System, the compound oil gas area of more oil properties, underground sand content is big, and substantial amounts of silt particle is contained in mined crude oil, causes to adopt
Tubing string serious wear, easily block, cause the appearance of oil well pump body running failure phenomenon, reduce the service life of tubing string, because
This, it is on flow string that filtering sand apparatus is installed more, silt particle is filtered.
Therefore it is required that the connection of filtering sand apparatus and tubing string is sealed connection, prevent fluid from revealing, and in the prior art, it connects
The sealing connect is inadequate, still has part fluid to overflow, causes certain waste.
Utility model content
In view of the above-mentioned problems, the technical problems to be solved in the utility model is to provide a kind of good seal performance, fluid is prevented
The flow string of spilling.
A kind of flow string, including outer tube body and the oil pick-up tube being arranged in outer tube body, the outer tube body lower end is connected with
Filtering sand apparatus, is additionally provided with sealing shroud between the filtering sand apparatus and the outer tube body, the inwall of the sealing shroud with it is described outer
Body is fitted, and multiple annular protrusions are provided with the inwall of the sealing shroud, is provided with the outer tube body and the ring
The storage tank that shape projection is engaged, the sealing shroud are threadedly coupled with the filtering sand apparatus, and the bottom of the sealing shroud is also set up
There is annular ring.
Preferably, be additionally provided with bulge-structure on the inwall of annular ring, be provided with the oil pick-up tube with it is described convex
The groove that structure is engaged is played, the bulge-structure is embedded in the groove.
Preferably, the lower end of the outer tube body is taper pipe portion, the lower section of taper pipe portion is cylindrical installation portion, described
Sealing shroud is set on the installation portion, and the oil pick-up tube lower end is stretched out by the mouth of pipe of outer tube body.
Preferably, the filtering sand apparatus includes the sleeve pipe of inner core and upper end open, be provided with described sleeve pipe with it is described close
The internal thread that big envelope is engaged.
Preferably, the upper end of the sealing ring is additionally provided with the second annular ring, second annular ring and described sleeve pipe
Upper end offsets.
The beneficial effects of the utility model are：Sealing shroud, wherein sealing shroud are set between outer tube body and filtering sand apparatus
Space between the two can not only be sealed, while outer tube body and filtering sand apparatus are attached, ring on sealing shroud
Shape is raised and the setting of annular ring is further wrapped up outer tube body, while also causes with the threaded connection of filtering sand apparatus
Sealing strengthens.By the setting of sleeve side walls screen pack, it can play a part of filtering out silt particle in crude oil, avoid flow string
Blocking and abrasion；Spiral projection is provided with by the setting of inner core, and on the periphery wall of inner core, when crude oil is in sleeve pipe
During middle rising, crude oil flow can be made to produce vortex phenomenon, so as to contribute to the viscosity of equal and crude oil；Sleeve upper end and installation
Portion is spirally connected by sealing shroud, can easily be unloaded filtering sand apparatus and be taken out inner core, filter sand is filled so as to conveniently realize
The cleaning put.
Brief description of the drawings
Fig. 1 is a kind of structural representation of flow string of the utility model；
Fig. 2 is the enlarged drawing in A portions in Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1 is a kind of structural representation of flow string of the utility model；Fig. 2 is the enlarged drawing in A portions in Fig. 1, incorporated by reference to
Shown in Fig. 1 and Fig. 2.Show a kind of preferable flow string, including outer tube body 1 and the oil pick-up tube 2 that is arranged in outer tube body 1,
The upper end of the outer tube body 1 is provided with connector 3, and connector 3 is connected with being connected to the oil well pump 4 of the upper end of oil pick-up tube 2, institute
State the lower end of outer tube body 1 and be connected with filtering sand apparatus 5, wherein, it is additionally provided with sealing between the filtering sand apparatus 5 and the outer tube body 1
Set 7, the inwall of the sealing shroud 7 is fitted with the outer tube body 1, and multiple annulars are provided with the inwall of the sealing shroud 7
Projection 71, the storage tank 121 being engaged with the annular protrusion 71 is provided with the outer tube body 1, further by sealing shroud 7
Be fixed on the outer tube body 1, in addition, be provided with external screw thread on the outer wall of the sealing shroud 7, and then with the filtering sand apparatus 5
Threaded connection, the bottom of the sealing shroud 7 is additionally provided with first annular circle 72, when the sealing shroud 7 is set on outer tube body 1
When, the bottom of the first annular circle 72 and outer tube body 1 is offseted, and then the outer tube body 1 is wrapped up, and is prevented further anti-
Only fluid seepage.
In the utility model, sealing shroud 7 is set between outer tube body 1 and filtering sand apparatus 5, and wherein sealing shroud 7 not only can be with
Space between the two is sealed, while outer tube body 1 and filtering sand apparatus 5 are attached, annular protrusion on sealing shroud 7
71 and it is first annular circle 72 setting further outer tube body 1 is wrapped up, when Oil shocking annular ring 72, the first ring
Shape circle 72 offsets with outer tube body 1, prevents junction seepage of the fluid by sealing ring 7 and outer tube body 1, at the same with filtering sand apparatus 5
Threaded connection also causes sealing enhancing.
Hereinafter, illustrated with a kind of specific embodiment, it should be pointed out that described in implementation below it
Structure, technique, selection are only to illustrate the feasibility of embodiment, and the intention of unrestricted scope of protection of the utility model.
More specifically, bulge-structure 721 is additionally provided with the inwall of annular ring 72, is provided with the oil pick-up tube 2
The groove 21 being engaged with the bulge-structure 721, the bulge-structure 721 are embedded in the groove 21, improve tubing string
Sealing.
The upper end of the sealing ring is additionally provided with the second annular ring, second annular ring with it is described
The lower end of the outer tube body 1 is taper pipe portion 11, and the lower section of taper pipe portion 11 is the installation portion 12 of cylinder, described
Sealing shroud 7 is set on the installation portion 12, and the lower end of the oil pick-up tube 2 is stretched out by the mouth of pipe of outer tube body 1.
The filtering sand apparatus 5 includes the sleeve pipe 52 of inner core 51 and upper end open, be provided with described sleeve pipe 52 with it is described close
The internal thread that big envelope 7 is engaged, and then be threadedly coupled with the sealing shroud 7.
The upper end of the sealing ring 7 is additionally provided with the second annular ring 73, second annular ring 73 and described sleeve pipe 52
Upper end offsets, and is covered, and prevents fluid from oozing out.
The inner core 51 is set in sleeve 52, and spiral raised 511 are provided with the periphery wall of the inner core 51,
The oil pick-up tube 2 communicates setting with sleeve pipe 52, and the side wall of described sleeve pipe 52 is provided with screen pack 521, the outer tube body 1 and oil pumping
Wiper block 6 is provided between pipe 2, the wiper block 6 is arranged on the upper and lower part of oil pick-up tube 2, the oil pick-up tube 2 and taper pipe portion 11
It is tightly connected.
In the utility model, sealing shroud 7 is set between outer tube body 1 and filtering sand apparatus 7, and wherein sealing shroud 7 not only can be with
Space between the two is sealed, while outer tube body 1 and filtering sand apparatus 5 are attached, annular protrusion on sealing shroud 7
71 and the setting of annular ring 72 further outer tube body 1 is wrapped up, while also cause with the threaded connection of filtering sand apparatus 5
Sealing strengthens.By the setting of the side wall screen pack 521 of sleeve pipe 52, it can play a part of filtering out silt particle in crude oil, avoid
The blocking and abrasion of flow string；Spiral projection is provided with by the setting of inner core, and on the periphery wall of inner core, works as crude oil
When rising in sleeve 52, crude oil flow can be made to produce vortex phenomenon, so as to contribute to the viscosity of equal and crude oil；Sleeve pipe 52
Upper end is spirally connected with installation portion 12 by sealing shroud 7, can easily be unloaded filtering sand apparatus 5 and be taken out inner core 51, so as to side
Just the cleaning to filtering sand apparatus 5 is realized.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of flow string, including outer tube body (1) and the oil pick-up tube (2) that is arranged in outer tube body (1), the outer tube body (1)
Lower end is connected with filtering sand apparatus (5), it is characterised in that is additionally provided between the filtering sand apparatus (5) and the outer tube body (1) close
Big envelope (7), inwall and the outer tube body (1) of the sealing shroud (7) fit, and are set on the inwall of the sealing shroud (7)
There are multiple annular protrusions (71), the storage tank being engaged with the annular protrusion (71) is provided with the outer tube body (1)
(121), the sealing shroud (7) is threadedly coupled with the filtering sand apparatus (5), and the bottom of the sealing shroud (7) is additionally provided with annular
Enclose (72).
2. flow string according to claim 1, it is characterised in that be additionally provided with the inwall of annular ring (72) convex
Structure (721) is played, the groove (21) being engaged with the bulge-structure (721), the projection are provided with the oil pick-up tube (2)
Structure (721) is embedded in the groove (21).
3. flow string according to claim 2, it is characterised in that the lower end of the outer tube body is taper pipe portion (11),
The lower section of taper pipe portion (11) is cylindrical installation portion (12), and the sealing shroud (7) is set on the installation portion (12), and
Oil pick-up tube (2) lower end is stretched out by the mouth of pipe of outer tube body (1).
4. flow string according to claim 3, it is characterised in that the filtering sand apparatus (5) includes inner core (51) and upper
The sleeve pipe (52) of end opening, the internal thread being engaged with the sealing shroud (7) is provided with described sleeve pipe (52).
5. flow string according to claim 4, it is characterised in that the upper end of the sealing shroud (7) is additionally provided with second
Annular ring (73), second annular ring (73) and the upper end of described sleeve pipe (52) offset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720527796.5U CN206722809U (en) | 2017-05-12 | 2017-05-12 | A kind of flow string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720527796.5U CN206722809U (en) | 2017-05-12 | 2017-05-12 | A kind of flow string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206722809U true CN206722809U (en) | 2017-12-08 |
Family
ID=60509190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720527796.5U Expired - Fee Related CN206722809U (en) | 2017-05-12 | 2017-05-12 | A kind of flow string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206722809U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644950A (en) * | 2019-09-23 | 2020-01-03 | 天津市顺泽采油设备有限公司 | Oil production pipe capable of adjusting oil viscosity |
| CN113617123A (en) * | 2021-07-29 | 2021-11-09 | 邓彩霞 | CNC (computer numerical control) milling machine cooling oil filtering device and filtering method thereof |
-
2017
- 2017-05-12 CN CN201720527796.5U patent/CN206722809U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644950A (en) * | 2019-09-23 | 2020-01-03 | 天津市顺泽采油设备有限公司 | Oil production pipe capable of adjusting oil viscosity |
| CN113617123A (en) * | 2021-07-29 | 2021-11-09 | 邓彩霞 | CNC (computer numerical control) milling machine cooling oil filtering device and filtering method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171208 Termination date: 20180512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |