CN207934875U - Nozzle-replaceable restrictor - Google Patents
Nozzle-replaceable restrictor Download PDFInfo
- Publication number
- CN207934875U CN207934875U CN201820167275.8U CN201820167275U CN207934875U CN 207934875 U CN207934875 U CN 207934875U CN 201820167275 U CN201820167275 U CN 201820167275U CN 207934875 U CN207934875 U CN 207934875U
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- China
- Prior art keywords
- nozzle
- flow controller
- connecting tube
- top connection
- lining pipe
- 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.)
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- 238000007789 sealing Methods 0.000 claims abstract description 14
- 210000000664 rectum Anatomy 0.000 claims abstract description 8
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Landscapes
- Nozzles (AREA)
Abstract
The utility model relates to an interchangeable nozzle formula flow controller, interchangeable nozzle formula flow controller include top connection, lower clutch, connecting pipe, inner tube, interior bushing pipe, a plurality of nozzles of different latus rectum, the inner wall sealing contact of the inner chamber that inner tube and interior bushing pipe's outer wall and top connection and connecting pipe are constituteed, and a plurality of spacing grooves on the outer wall of inner tube and interior bushing pipe, distance between two adjacent spacing grooves equals the distance between two adjacent through-holes in N a plurality of through-holes in a plurality of spacing grooves, the chamber wall of the inner chamber that top connection and connecting pipe formed on the fixed fixture block that is equipped with, the fixture block card go into in one of them spacing groove. The utility model provides a interchangeable nozzle formula flow controller simple structure, a plurality of nozzles that are equipped with can change the nozzle according to the demand of operation in proper order when the operation, effectively solved the defect that needs mention the flow controller when present nozzle formula flow controller changes the nozzle, improved the speed of changing the nozzle, improved the power of borehole operation simultaneously, saved the time.
Description
Technical field
The utility model belongs to natural gas extraction technical field, and in particular to a kind of interchangeable nozzles formula flow controller.
Background technology
Flow controller is the key device of downhole choke technology, and in underground, a certain depth oil pipe inner seat puts the section of certain specification
Device is flowed, realizes reducing pressure by regulating flow in pit shaft, pressure energy is transformed into kinetic energy, fluid-flow rate is improved, makes the fluid after throttling always
Critical flow conditions are kept, influence of the well head pressure fluctuation to shaft bottom is reduced, and make full use of geothermal energy, prevents hydrate
It generates, in order to be depressured, throttle, limit the production in natural gas extraction, underground throttle device, the bottom of flow controller usually is installed in Wellbore of Gas Wells
Portion is typically provided nozzle, and nozzle-type flow controller is the key component for realizing laminated distributor under well water filling, and existing nozzle includes nozzle carrier
With the nozzle core in the nozzle carrier, but a nozzle core can only be generally accommodated in a nozzle carrier, when needing replacing spray
It when mouth core, then needs to take out former nozzle core using special tool, then new nozzle core is packed into, it is inconvenient so that work
Make less efficient.
Utility model content
The purpose of the utility model is to overcome the nozzle cores of existing flow controller inner nozzle to replace inconvenience, and then work is caused to be imitated
The low problem of rate.
For this purpose, the utility model provides a kind of interchangeable nozzles formula flow controller, including it is sequentially connected from top to bottom on connect
Head, connecting tube and lower contact, the top connection and connection tube cavity are equipped with the inner tube being vertically connected with and internal lining pipe, internal lining pipe upper edge
Axial uniform intervals open up N number of through-hole, and liner tube cavity is equipped with the N+1 sprays being connected with flow controller central passage in an axial direction
Mouth, wherein the jet hole of N number of nozzle is connected with N number of through-hole one-to-one correspondence, the jet hole of a remaining nozzle connects under
Cephalic par is simultaneously connected to the inner cavity of lower contact；
The distance between multiple limiting slots, two neighboring limiting slot are opened up in an axial direction on the outer wall of said inner tube and internal lining pipe
Equal to the distance between two neighboring through-hole, fixture block, fixture block are fixed on the internal chamber wall that the top connection is formed with connecting tube
It is caught in one of limiting slot.
The nozzle latus rectum of the N+1 nozzle from top to bottom is sequentially reduced, and N is derived from the natural number between 1~9.
Between the internal lining pipe and connecting tube, between nozzle and internal lining pipe, it is equipped between connecting tube and lower contact O-shaped close
Seal.
The side of the limiting slot is equipped with guiding surface, and the guiding surface is tilted to top connection side.
The through-hole is to tilt to open up, and tilt to lower contact side.
The fixture block fixes the junction for being located at top connection and connecting tube.
The fixture block is located on the inner wall of top connection or is located on the inner wall of connecting tube.
The number of N=2, nozzle is three, and limiting slot is also three, and is set one of in three limiting slots
On internal lining pipe, remaining two limiting slot is set on inner pipe.
The top connection is connect with tripping in tool, and lower contact is connect with flow controller mandrel, said inner tube, internal lining pipe outer wall
It is contacted with the inner wall sealing of top connection, connecting tube, the internal diameter of the inner tube is less than the internal diameter of internal lining pipe, top connection and connecting tube
Inner diameter size it is identical, the internal diameter of connecting tube is less than the internal diameter of lower contact.
A kind of application process of interchangeable nozzles formula flow controller, top connection are connected to tripping in tool, lower contact and flow controller core
Axis is attached, and forms complete flow controller, and when initial position, fixture block is inserted in the lowermost limiting slot, at this time only most
The jet hole of lower end nozzle is opened, and other jet holes are closed by the inner wall of connecting tube, when the spray for needing replacing more big orifice
When mouth, from top to bottom jarring flow controller, inner tube and internal lining pipe slide downward, fixture block are caught in second limiting slot from bottom to top,
The sealing that second nozzle and through-hole are detached from connecting tube from bottom to top is opened, and second nozzle is in running order；When need
When replacing the nozzle of maximum diameter, continue, from the downward jarring in the upper end of flow controller, to enter second limiting slot from bottom to top
In fixture block be caught in third limiting slot, and then third nozzle is opened, and third nozzle is in running order, successively class
It pushes away, according to job requirements jarring flow controller until the nozzle of maximum diameter is opened, completes the replacement of nozzle.
The beneficial effects of the utility model：This interchangeable nozzles formula flow controller provided by the utility model and its application side
Method, simple in structure, the multiple nozzles being equipped with successively can replace nozzle according to the demand of operation in operation, replace
During, it is not necessary that flow controller is lifted, it is only necessary to snap onto in next stage limiting slot fixture block, be connect with nozzle on internal lining pipe
Through-hole be released, originally worked by the vias of connecting tube inner wall sealing, and efficiently solved current nozzle-type section
Stream device needs the defect for lifting flow controller when needing replacing nozzle, improves the rate for replacing nozzle, while improving underground
The power of operation, saves the time.
The utility model is described in further details below with reference to attached drawing.
Description of the drawings
Fig. 1 is the structural schematic diagram of interchangeable nozzles formula flow controller；
Fig. 2 is the structural schematic diagram that the utility model replaces nozzle for the first time；
Fig. 3 is second of structural schematic diagram for replacing nozzle in the utility model.
Reference sign：1. top connection；2. lower contact；3. connecting tube；4. inner tube；5. internal lining pipe；6. nozzle；7. logical
Hole；8. limiting slot；9. fixture block；10.O type sealing rings.
Specific implementation mode
Embodiment 1：
A kind of interchangeable nozzles formula flow controller as shown in Figure 1 is present embodiments provided, including sequentially connected from top to bottom
Top connection 1, connecting tube 3 and lower contact 2, the top connection 1 and 3 inner cavity of connecting tube are equipped with the inner tube 4 being vertically connected with and internal lining pipe
5, evenly-spaced in an axial direction on internal lining pipe 5 to set N number of through-hole 7,5 inner cavity of internal lining pipe is equipped with N+1 and flow controller center in an axial direction
The nozzle 6 that channel is connected, wherein the jet hole of N number of nozzle 6 is connected with the one-to-one correspondence of N number of through-hole 7, a remaining nozzle
6 jet hole is connected to close to 2 end of lower contact and with the inner cavity of lower contact 2；The outer wall upper edge axis of said inner tube 4 and internal lining pipe 5
To opening up multiple limiting slots 8, the distance between two neighboring limiting slot 8 is equal to the distance between two neighboring through-hole 7, it is described on
It is fixed with fixture block 9 on the internal chamber wall that connector 1 is formed with connecting tube 3, fixture block 9 is caught in one of limiting slot 8.
The course of work of interchangeable nozzles formula flow controller provided in this embodiment is as follows：
Specifically at work, when initial position, the fixture block 9 is inserted in the lowermost limiting slot 8 as shown in Figure 1
In, only the jet hole of bottom nozzle is opened at this time, and other jet holes are closed by the inner wall of connecting tube 3, are only had at this time
The lowermost nozzle is in working condition（I.e. in the work gone into the well, the lowermost nozzle is in working condition）, when need more
When changing the nozzle of maximum diameter（The nozzle latus rectum of the nozzle being equipped with from top to bottom is sequentially reduced）, as shown in Figure 2 from flow controller
The downward jarring in upper end, enters the fixture block in the limiting slot of bottom（Clamp spring）It is caught in second limiting slot, under second nozzle
Lower end at sealing is opened, and second nozzle is in running order；When needing more to slide the nozzle of more big orifice, such as Fig. 3
Shown continuation enters the fixture block in the second limiting slot from the downward jarring in the upper end of flow controller（Clamp spring）It is caught in third limiting slot
It is interior, and then the lower end under third nozzle at sealing is opened, third nozzle is in running order, and so on, according to
Job requirements jarring flow controller makes the nozzle for the big orifice being equipped be opened, realize nozzle with changing, without with changing nozzle
When flow controller lifted replace, accelerate the efficiency of replacement, while nozzle can be completed more during operation
It changes, effectively saves the time of replacement.
It should be noted that the tripping in tool that the top connection 1 is used to connect flow controller is attached, in the mistake of connection
Generally use pin is attached in journey, can facilitate the connection and dismounting of top connection 1 and tripping in tool, the lower contact 2
It is attached with flow controller mandrel, forms the flow controller of completion, and the application is mainly the replacement that utility model point is nozzle,
And the flow controller mandrel of lower contact connection belongs to the public technology of the art, herein with regard to not carrying out detailed retouch to it
It states.Nozzle 6 is used to be sized to play the role of throttling, N+ by upper and lower fittings, while according to the nozzle latus rectum of nozzle 6
The central passage of 1 nozzle communicates, and can ensure that upper lower contact can interconnect, the through-hole 7 that the internal lining pipe 5 being equipped with is equipped with
It is connected with the jet hole of nozzle 6, the outer wall of the inner wall and internal lining pipe 5 of connecting tube 3 is in sealing contact, is blocked to through-hole 7, if
Some fixture blocks 9 snap onto in limiting slot 8, are limited to the relative position of connecting tube 3 and internal lining pipe 5, and then realize to through-hole 7
It is opened.
Further, the installation and dismounting of entire flow controller for convenience, between the top connection 1 and connecting tube 3, even
It is threadably secured connection respectively between take over 3 and lower contact 2.It is threadably secured between the inner tube 4 and internal lining pipe 5
Connection.Can be smoothly entered in limiting slot 8 in order to facilitate fixture block 9, the fixture block 9 be clamp spring, using clamp spring design more
Fixture block is facilitated to enter in limiting slot 8.
Embodiment 2：
In order to realize the replacement of different latus rectum nozzles, meet different work demand, the N+1 nozzle 6 is from top to bottom
Nozzle latus rectum is sequentially reduced, and N is derived from the natural number between 1~9, including 1 and 9.In order to reinforce the sealing inside entire flow controller
Property, between internal lining pipe 5 and connecting tube 3, between nozzle 6 and internal lining pipe 5, O-shaped sealing is equipped between connecting tube 3 and lower contact 2
Circle 10, which is entirely rubber seal.
Embodiment 3：
In order to facilitate fixture block 9 from being entered in previous limiting slot 8 in another limiting slot 8, the side of the limiting slot 8
Equipped with guiding surface, and the guiding surface is tilted to 1 side of top connection, 8 more convenient fixture block 9 of limiting slot with guide surface
Mobile and insertion.In order to more realize the ejection of liquid in nozzle 6, through-hole 7 is to tilt to open up, and to 2 side of lower contact
It tilts.
Embodiment 4：
Further, in order to facilitating fixture block 9（Clamp spring）It can conveniently enter in limiting slot 8, according to current work
The fixture block 9 can be located on the inner wall of top connection 1 or be located on the inner wall of connecting tube 3 by skill situation.
It simultaneously for the setting of more convenient fixture block, and replaces, optimal technical solution is to set the fixation of fixture block 9
In the junction of top connection 1 and connecting tube 3, fixture block is located to the junction of top connection 1 and connecting tube 3, facilitates the replacement of fixture block,
The connection of top connection 1 and connecting tube 3 is strengthened simultaneously.
Embodiment 5：
On the basis of embodiment 1, from the point of view of the service condition of current flow controller, preferably, N=2, nozzle 6
Number be three, limiting slot 8 is also three, and is located on internal lining pipe 5 one of in three limiting slots 8, remaining
Two limiting slots 8 are located in inner tube 4.That is N=2 are arranged using three nozzles in internal lining pipe 5, and the nozzle of three nozzles is logical
The size of diameter is respectively from top to bottom large, medium and small three grades, complies fully with the demand of current flow controller.
Embodiment 6：
The top connection 1 is connect with tripping in tool, lower contact 2 is connect with flow controller mandrel, said inner tube 4, internal lining pipe 5
Outer wall is contacted with the inner wall sealing of top connection 1, connecting tube 3, and the internal diameter of the inner tube 4 is less than the internal diameter of internal lining pipe 5, top connection
1 is identical as the inner diameter size of connecting tube 3, and the internal diameter of connecting tube 3 is less than the internal diameter of lower contact 2.
Embodiment 7：
A kind of application process of interchangeable nozzles formula flow controller, top connection 1 are connected to tripping in tool, lower contact 2 and flow controller
Mandrel is attached, and forms complete flow controller, when initial position, as shown in Figure 1, fixture block 9 is inserted in the lowermost limiting slot 8
In, only the jet hole of bottom nozzle 6 is opened at this time（I.e. in the work gone into the well, the lowermost nozzle is in work shape
State）, other jet holes are closed by the inner wall of connecting tube 3, when needing replacing the more nozzle 6 of big orifice（The nozzle being equipped with
Nozzle latus rectum from top to bottom is sequentially reduced）, from top to bottom jarring flow controller as shown in Figure 2, inner tube 4 and internal lining pipe 5 are to downslide
It is dynamic, fixture block 9（Clamp spring）It is caught in second limiting slot 8 from bottom to top, second nozzle 6 and through-hole 7 are detached from and connect from bottom to top
The sealing of take over 3 is opened, and second nozzle 6 is in running order；When needing replacing the nozzle of maximum diameter, such as Fig. 3 institutes
Show continuation from the downward jarring in the upper end of flow controller, the fixture block 9 entered in second limiting slot 8 from bottom to top is caught in third limit
In the slot 8 of position, and then the lower end of third nozzle 6 times at sealing is opened, and third nozzle 6 is in running order, successively class
It pushes away, according to job requirements jarring flow controller until the nozzle 6 of maximum diameter is opened, completes the replacement of nozzle, realize nozzle
With changing, replaced without lifting flow controller when with changing nozzle, accelerate the efficiency of replacement, while in the process of operation
In can complete the replacement of nozzle, effectively save the time of replacement.
It is exemplified as above be only to the utility model for example, not constituting to the scope of protection of the utility model
Limitation, it is every to be belonged within the scope of protection of the utility model with the same or analogous design of the utility model.The present embodiment
The well-known components and common structure or conventional means of the component and the structure category industry that do not describe in detail, are not chatted one by one here
It states.
Claims (9)
1. a kind of interchangeable nozzles formula flow controller, including sequentially connected top connection from top to bottom（1）, connecting tube（3）And lower contact
（2）, it is characterised in that：The top connection（1）And connecting tube（3）Inner cavity is equipped with the inner tube being vertically connected with（4）With internal lining pipe（5）,
Internal lining pipe（5）On evenly-spaced in an axial direction set N number of through-hole（7）, internal lining pipe（5）Inner cavity is equipped with N+1 and flow controller in an axial direction
The nozzle that central passage is connected（6）, wherein N number of nozzle（6）Jet hole and N number of through-hole（7）One-to-one correspondence is connected, remaining
A nozzle（6）Jet hole close to lower contact（2）End and and lower contact（2）Inner cavity connection；
Said inner tube（4）And internal lining pipe（5）Outer wall on open up multiple limiting slots in an axial direction（8）, two neighboring limiting slot（8）It
Between distance be equal to two neighboring through-hole（7）The distance between, the top connection（1）With connecting tube（3）On the internal chamber wall of formation
It is fixed with fixture block（9）, fixture block（9）It is caught in one of limiting slot（8）In.
2. interchangeable nozzles formula flow controller as described in claim 1, it is characterised in that：The N+1 nozzle（6）From top to bottom
Nozzle latus rectum is sequentially reduced, and N is derived from the natural number between 1~9.
3. interchangeable nozzles formula flow controller as described in claim 1, it is characterised in that：The internal lining pipe（5）With connecting tube（3）It
Between, nozzle（6）With internal lining pipe（5）Between, connecting tube（3）With lower contact（2）Between be equipped with O-ring seal（10）.
4. interchangeable nozzles formula flow controller as described in claim 1, it is characterised in that：The limiting slot（8）Side be equipped with lead
To inclined-plane, and the guiding surface is to top connection（1）Side tilts.
5. interchangeable nozzles formula flow controller as described in claim 1, it is characterised in that：The through-hole（7）It is opened up to tilt, and to
Lower contact（2）Side tilts.
6. interchangeable nozzles formula flow controller as described in claim 1, it is characterised in that：The fixture block（9）Fixation is located at top connection
（1）With connecting tube（3）Junction.
7. interchangeable nozzles formula flow controller as described in claim 1, it is characterised in that：The fixture block（9）It is located at top connection（1）'s
On inner wall or it is located at connecting tube（3）Inner wall on.
8. interchangeable nozzles formula flow controller as claimed in claim 2, it is characterised in that：N=2, nozzle（6）Number be three
It is a, limiting slot（8）It it is also three, and three limiting slots（8）In one of be located at internal lining pipe（5）On, remaining two
Limiting slot（8）It is located at inner tube（4）On.
9. interchangeable nozzles formula flow controller as described in claim 1, it is characterised in that：The top connection（1）Connect with tripping in tool
It connects, lower contact（2）It is connect with flow controller mandrel, said inner tube（4）, internal lining pipe（5）Outer wall and top connection（1）, connecting tube（3）
Inner wall sealing contact, the inner tube（4）Internal diameter be less than internal lining pipe（5）Internal diameter, top connection（1）With connecting tube（3）'s
Inner diameter size is identical, connecting tube（3）Internal diameter be less than lower contact（2）Internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820167275.8U CN207934875U (en) | 2018-01-31 | 2018-01-31 | Nozzle-replaceable restrictor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820167275.8U CN207934875U (en) | 2018-01-31 | 2018-01-31 | Nozzle-replaceable restrictor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207934875U true CN207934875U (en) | 2018-10-02 |
Family
ID=63650971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820167275.8U Active CN207934875U (en) | 2018-01-31 | 2018-01-31 | Nozzle-replaceable restrictor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207934875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166956A (en) * | 2018-01-31 | 2018-06-15 | 中国石油天然气股份有限公司 | Nozzle-replaceable restrictor and application method thereof |
-
2018
- 2018-01-31 CN CN201820167275.8U patent/CN207934875U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166956A (en) * | 2018-01-31 | 2018-06-15 | 中国石油天然气股份有限公司 | Nozzle-replaceable restrictor and application method thereof |
| CN108166956B (en) * | 2018-01-31 | 2023-09-26 | 中国石油天然气股份有限公司 | Nozzle-replaceable throttle and application method thereof |
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