CN206830130U - Sand setting type check valve - Google Patents
Sand setting type check valve Download PDFInfo
- Publication number
- CN206830130U CN206830130U CN201720341271.2U CN201720341271U CN206830130U CN 206830130 U CN206830130 U CN 206830130U CN 201720341271 U CN201720341271 U CN 201720341271U CN 206830130 U CN206830130 U CN 206830130U
- Authority
- CN
- China
- Prior art keywords
- sand
- end cover
- seat
- screen casing
- ball
- 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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- 239000004576 sand Substances 0.000 title claims abstract description 162
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 238000003860 storage Methods 0.000 claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 9
- 239000012530 fluid Substances 0.000 description 9
- 238000005406 washing Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a sand setting formula single current valve, it includes: an outer cylinder; the upper end cover is hermetically sleeved in the outer barrel, and a sand setting channel penetrates through the upper end cover along the axial direction; the lower end cover is hermetically sleeved in the outer barrel and is positioned below the upper end cover; the sieve tube penetrates through the outer tube and is connected between the upper end cover and the lower end cover, a sand storage space communicated with the sand setting channel is formed between the sieve tube and the outer tube, and a liquid production channel which is communicated from bottom to top is formed inside the lower end cover, inside the sieve tube and inside the upper end cover; the upper valve seat is fixed in the liquid production channel and is provided with an upper valve ball; and the lower valve seat is fixed in the liquid production channel, a lower valve ball is seated on the lower valve seat, and the lower valve seat is positioned below the upper valve seat and positioned below the sieve tube. The utility model discloses a sand setting formula check valve has storage sand, automatically cleaning sand setting and check valve function concurrently, can install in the electric submersible pump top of sand outlet well, ensures that electric submersible pump system safety opens and stops.
Description
Technical field
It the utility model is related to oil well Lifting Technique field, especially a kind of sand settling type single current for electric submersible pump tubing string
Valve.
Background technology
Electric submersible pump is a kind of conventional oil well lifting technology equipment, the lifting of deep-well huge discharge is mainly used in, in electric submersible pump
During shutdown, oily liquid in pipe, which flows backwards, enters electric submersible pump, causes electric submersible pump reversion to thread off and electric submersible pump occurs and falls well accident, therefore,
Ball-and-seat typically is fitted with electric submersible pump upper end, prevents oily liquid in pipe flows backwards from entering electric submersible pump.But for sand well, electricity
After latent pump termination of pumping, the sand in oil pipe in well liquid be deposited at ball-and-seat and ball-and-seat upper end oil pipe in, cause ball-and-seat sand to bury, electricity
Latent pump can not be again started up.
Being currently used for sand-catching apparatus on the pump of electric submersible pump tubing string mainly has two classes, a kind of only to have reservoir space, therefore only
With sand settling function, after reservoir space is sunk completely by sand after the multiple termination of pumping of electric submersible pump, sand-catching apparatus failure；It is another kind of have preserve sky
Between and sand washing duct, possess storage sand and sand washing function, reservoir space can be avoided to sink sand filling and fail, but in the process of sand setting
In, the sand in reservoir space is possible to enter ball-and-seat upper end along sand washing duct, in this case it is still possible to causes ball-and-seat blocking.
Utility model content
The purpose of this utility model is to provide a kind of sand settling type ball-and-seat, and it has storage sand, automatically cleaning sand setting and ball-and-seat concurrently
Function, it can be arranged on above the electric submersible pump of sand output well, it is ensured that the safe start and stop of electric submersible pumping system.
To reach above-mentioned purpose, the utility model proposes a kind of sand settling type ball-and-seat, it includes：Outer barrel；Upper end cover, sealing
It is socketed in the outer barrel, axially through there is sand setting passage on the upper end cover；Bottom end cover, sealing are socketed in the outer barrel
It is interior, and below the upper end cover；Screen casing, it is located in the outer barrel, and is connected to the upper end cover and the bottom end cover
Between, the storage sand space connected with the sand setting passage, the bottom end cover inner side, institute are formed between the screen casing and the outer barrel
State on the inside of screen casing and the production liquid passage penetrated from the bottom to top is formed on the inside of the upper end cover；Upper valve base, it is fixed on the production liquid and leads to
In road, upper valve ball is seated on the upper valve base；Lower valve base, it is fixed in the production liquid passage, lower valve is seated on the lower valve base
Ball, the lower valve base are located at below the upper valve base, and below the screen casing.
Sand settling type ball-and-seat as described above, wherein, connected between the upper end cover and the screen casing by upper center tube,
The upper valve base is fixed in the upper center tube, and it is above the upper valve ball and right to have on the inwall of the upper center tube
The spacing positive stop lug boss of the upper valve ball.
Sand settling type ball-and-seat as described above, wherein, it is described also axially through there is the first connecting hole on the upper end cover
The upper end of upper center tube is socketed in first connecting hole, and the sand setting passage is located at the outside of first connecting hole.
Sand settling type ball-and-seat as described above, wherein, connected between the bottom end cover and the screen casing by lower center tube,
The lower valve base is fixed in the lower center tube, and the lower end of the screen casing is stretched on the inside of the lower center tube, and under described
Valve ball is spacing.
Sand settling type ball-and-seat as described above, wherein, axially through there is the second connecting hole on the bottom end cover, under described
The lower end of central tube is socketed in second connecting hole.
Sand settling type ball-and-seat as described above, wherein, the sand setting passage corresponds to the storage sand space and set, the sand setting
The shape of passage and the form fit in the storage sand space.
Sand settling type ball-and-seat as described above, wherein, the storage sand space is annular space, and the sand setting passage includes two
The sand setting hole of individual arc, two sand setting holes are spaced in a ring.
Sand settling type ball-and-seat as described above, wherein, the outer barrel includes top connection, the outer tube being from top to bottom sequentially connected
And lower contact, the upper end cover sealing are socketed in the inside top connection, the bottom end cover sealing is socketed in the lower contact,
The screen casing is located on the inside of the outer tube.
Sand settling type ball-and-seat as described above, wherein, the inwall of the top connection is provided with the projected radially inwards
One annular boss, the top of the upper end cover is against the first annular boss；The inwall of the lower contact is provided with radially
The second inwardly projecting annular boss, the bottom of the bottom end cover is against second annular boss.
Sand settling type ball-and-seat as described above, wherein, the screen casing is cutting seam sieve tube or punching screen casing.
The characteristics of sand settling type ball-and-seat of the present utility model and advantage are：
Sand settling type ball-and-seat of the present utility model, by above electric submersible pump, stopping taking out moment in electric submersible pump, liquid in well
When body (such as top oil liquid in pipe) carrying sand grains comes downwards to sand settling type ball-and-seat, stopped by upper valve ball, entrance can not be flow backwards
The electric submersible pump of lower section, then storage sand space is entered by the sand setting passage of upper end cover, sand grains is stored in sand sky by screen casing filtering
In, and liquid can enter via screen casing in production liquid passage, can not under the stop of lower valve ball of this partially liq below screen casing
Under be advanced into electric submersible pump, play storage sand effect；
When electric submersible pump opens again to be taken out, fluid top opens lower valve ball and enters production liquid passage, and a part of fluid pushes up out upper valve ball again
It is plucked out of into top oil pipe, another part fluid enters storage sand space via screen casing, carries the sand grains warp in storage sand space
It is plucked out of by sand setting passage into top oil pipe, plays automatically cleaning sand washing effect；
By setting upper valve base, upper valve ball, lower valve base and lower valve ball, it can prevent liquid from flowing backwards to enter electric submersible pump, play list
Flow the effect of valve；
By setting lower valve base and lower valve ball, even if upper valve ball is buried by sand, fluid is remained to via production liquid passage, storage sand space
It is plucked out of with sand setting passage into top oil pipe, the safe start and stop of electric submersible pump and oil recovery production is played with double shield effect.
Brief description of the drawings
The following drawings is only intended to, in doing the utility model schematic illustration and explanation, not limit model of the present utility model
Enclose.Wherein：
Fig. 1 is the schematic diagram of sand settling type ball-and-seat of the present utility model；
Fig. 2 is the schematic diagram of upper end cover in the utility model.
Main element label declaration：
The outer tube of 1 top connection, 2 upper end cover 3
The upper valve base of 4 upper center tube, 5 upper valve ball 6
The lower valve ball of 7 screen casing, 8 lower center tube 9
The lower contact of 10 lower valve base, 11 bottom end cover 12
Produce liquid passage in 13 sand setting passages 14 storage sand space 15
The connecting hole of 16 sand setting hole 17 first
Embodiment
In order to which the technical characteristics of the utility model, purpose and effect are more clearly understood, now control illustrates
Specific embodiment of the present utility model.
As shown in figure 1, the utility model provides a kind of sand settling type ball-and-seat, it is arranged on above electric submersible pump, and is arranged on
Below the oil pipe of top, the sand settling type ball-and-seat includes the outer barrel of hollow tube-shape, the upper end cover 2 of column, the bottom end cover 11 of column, sieve
Pipe 7 and upper valve base 6, the sealing of upper end cover 2 is socketed in outer barrel, axially through there is sand setting passage 13 on upper end cover 2；Bottom end cover 11
Sealing is socketed in outer barrel, and positioned at the lower section of upper end cover 2, and with upper end cover 2 separately；Screen casing 7 is located in outer barrel, and is connected
The storage sand space 14 connected with sand setting passage 13 is formed between upper end cover 2 and bottom end cover 11, between screen casing 7 and outer barrel, stores up sand
Space 14 is between upper end cover 2 and bottom end cover 11, and sand liquid energy enters storage sand space 14 via sand setting passage 13, and sand grains is in screen casing
It is stored under 7 filtering in sand space 14, and liquid can enter inside screen casing 7 via screen casing 7, the inner side of bottom end cover 11, screen casing 7
Inner side and the inner side of upper end cover 2 form the production liquid passage 15 (or being main product liquid passage) penetrated from the bottom to top, produce liquid in other words and lead to
Road 15 is penetrated to the space of the top of upper end cover 2 by the space of the lower section of bottom end cover 11, so that the fluid that electric submersible pump lifts is via production liquid
Passage 15 is plucked out of into top oil pipe, is connected because production liquid passage 15 passes through the filter bores on screen casing tube wall with storage sand space 14
It is logical, understand some fluid and enter storage sand space 14, carry the deposition sand grains in storage sand space 14 via on sand setting passage 13
Row is to top oil pipe, and so as to complete to store up the automatically cleaning process in sand space 14, avoid storing up in sand space 14 causes sand setting after heavy sand filling
Disabler；
Upper valve base 6 is fixed in production liquid passage 15, and the upper valve ball 5 that control fluid unidirectionally flows up is seated on upper valve base 6,
Liquid during preventing that electric submersible pump from shutting down above ball-and-seat, which flows backwards, enters electric submersible pump, causes electric submersible pump reversion to be threaded off and electric submersible pump occurs
Fall well accident；Lower valve base 10 is fixed in production liquid passage 15, lower valve ball 9 is seated on lower valve base 10, lower valve base 10 is located at upper valve base 6
Lower section, and positioned at the lower section of screen casing 7, entered with preventing from storing up the liquid in sand space 14 and being flow backwards after screen casing 7 enters production liquid passage 15
Electric submersible pump, meanwhile, by setting upper valve ball 5 and screen casing 7, it can guarantee that lower valve ball 9 is not buried by sand, by setting lower valve base 10 with
Valve ball 9, even if the card sand of upper valve ball 5 or sand bury, lower valve ball 9 remains to continue to play the effect that control fluid unidirectionally flows up, and makes
Fluid remains to be plucked out of into top oil pipe via production liquid passage 15, storage sand space 14 and sand setting passage 13, prevents because of upper valve ball 5
Sand, which buries, causes electric submersible pump not to be again started up, and the safe start and stop of electric submersible pump are played with double shield effect.
Specifically, outer barrel includes top connection 1, outer tube 3 and the lower contact 12 for being from top to bottom sequentially connected and connecting, upper end cover
2 sealings are socketed in the inner side of top connection 1, and the sealing of bottom end cover 11 is socketed in the inner side of lower contact 12, and screen casing 7 is located in the inner side of outer tube 3.
Further, the inwall of top connection 1 is provided with the first annular boss projected radially inwards, the top of upper end cover 2
Against first annular boss, to play position-limiting action to upper end cover 2, the inwall of lower contact 12 is provided with what is projected radially inwards
Second annular boss, the bottom of bottom end cover 11 is against the second annular boss, to play positioning action to bottom end cover 11.
As shown in figure 1, in a specific embodiment, connected between upper end cover 2 and screen casing 7 by upper center tube 4, in upper
Heart pipe 4 is connected with screen casing 7, and upper valve base 6 is fixed in upper center tube 4, is had on the inwall of upper center tube 4 on upper valve ball 5
To carry out spacing positive stop lug boss to upper valve ball 5, the upper end of screen casing 7 is stretched into upper center tube 4 for side, the bottom of upper valve base 6 against
Screen casing 7.By setting upper center tube 4, upper valve base 6 and upper valve ball 5, shape between upper center tube 4 and screen casing 7 and outer barrel are easily installed
Into storage sand space 14.
It is preferred that upper valve base 6 and upper valve ball 5 are located at close to the position of upper end cover 2 in upper center tube 4, to reduce upper center
Sand liquid retention amount in pipe 4, is easy to sand liquid during sand setting to be redirected into sand setting passage 13.
As shown in Figure 1 and Figure 2, further, also axially through there is the first connecting hole 17 on upper end cover 2, upper center tube 4
Upper end is socketed in the first connecting hole 17, and sand setting passage 13 is located at the outside of the first connecting hole 17, and with the phase of the first connecting hole 17
Interval.
As shown in figure 1, in another specific embodiment, connected between bottom end cover 11 and screen casing 7 by lower center tube 8,
Lower center tube 8 is connected with screen casing 7, and lower valve base 10 is fixed in lower center tube 8, and the inner side of lower center tube 8 is stretched into the lower end of screen casing 7,
With spacing to lower valve ball 9.By setting lower center tube 8, lower valve base 10 and lower valve ball 9, lower center tube 8, the and of screen casing 7 are easily installed
Storage sand space 14 is formed between upper center tube 4 and outer barrel.
Further, axially through there is the second connecting hole on bottom end cover 11, the lower end of lower center tube 8 is socketed in the second connection
In hole, the inner chamber of lower center tube 8, screen casing 7 and upper center tube 4 forms production liquid passage 15.
Specifically, top connection 1 passes through screwed connection, screen casing by screwed connection, upper end cover 2 with outer tube 3 with upper center tube 4
7 upper end and upper center tube 4 by screwed connection, the lower end of screen casing 7 and lower center tube 8 by screwed connection, lower center tube 8 with
Bottom end cover 11 passes through screwed connection by screwed connection, lower contact 12 with outer tube 3.
As shown in Figure 1 and Figure 2, in a preferred embodiment, the corresponding storage sand space 14 of sand setting passage 13 is set, or
Sand setting passage 13 and storage sand space face, the shape of sand setting passage 13 and the form fit for storing up sand space 14 about 14 are said, with most
Big degree plays the connection effect of sand setting passage 13, is easy to be advanced into storage sand space 14 during sand setting under liquid, when also allowing for sand washing
Top oil pipe is advanced on liquid.
Further, it is the annular space around screen casing 7 to store up sand space 14, and sand setting passage 13 includes two arcs (or crescent moon
Shape) sand setting hole 16 (or being by-pass prot), sand setting hole 16 is elongated, and two sand setting holes 16 are spaced in a ring, two
Sand setting hole 16 is looped around the outer circumferential side of the first connecting hole 17 of upper end cover 2, and it is sufficiently large both to have ensure that center production liquid passage 15 had
Radial direction area, in turn ensure that sand setting passage 13 has sufficiently large area.For the concrete structure of sand setting passage 13, this practicality
New not to be any limitation as, for example, sand setting passage 13 can also include multiple sand setting holes, sand setting hole can be arcuate socket or circle
Hole, and multiple sand setting holes are spaced in a ring around the first connecting hole 17.
In the utility model, screen casing 7 is cutting seam sieve tube or punching screen casing, but is not limited to this, and can also be other has
The tubing string of filter bores.
Sand settling type ball-and-seat of the present utility model, there is advantages below：
1. realizing the combination of sand-catching apparatus and ball-and-seat, the complex function with sand setting and single current, electricity is simplified
The structure of latent pump line post；
2. it is screen casing to store up sand space wall, there is provided sufficiently large sand washing runner, ensure that the automatically cleaning effect in storage sand space
Fruit, while effectively avoid sand grains from entering production liquid channel blockage ball-and-seat through screen casing；
3. the sand setting passage on upper end cover employs the sand setting hole of crescent, ensure that maximum center main product liquid passage and
Sufficiently large sand setting passage；
4. the sand settling type ball-and-seat is mainly used in electric immersible pump well sand producing well, go out sand oil especially suitable for open production
Well, it can be ensured that the safe start and stop of sand output well electric submersible pumping system.
The schematical embodiment of the utility model is the foregoing is only, is not limited to model of the present utility model
Enclose.Any those skilled in the art, the equivalent variations made on the premise of design of the present utility model and principle is not departed from
With modification, the scope that the utility model is protected all should be belonged to.And it should be noted that each part of the present utility model simultaneously
It is not limited only to above-mentioned overall applicability, each technical characteristic described in specification of the present utility model can be according to being actually needed selection
One individually uses or selects the multinomial use that combines, and therefore, the utility model covers in the nature of things to be invented with this case
The relevant other combinations of point and concrete application.
Claims (10)
1. a kind of sand settling type ball-and-seat, it is characterised in that the sand settling type ball-and-seat includes：
Outer barrel；
Upper end cover, sealing are socketed in the outer barrel, axially through there is sand setting passage on the upper end cover；
Bottom end cover, sealing are socketed in the outer barrel, and below the upper end cover；
Screen casing, be located in the outer barrel, and be connected between the upper end cover and the bottom end cover, the screen casing with it is described outer
The storage sand space connected with the sand setting passage, the bottom end cover inner side, screen casing inner side and the upper end are formed between cylinder
Lid inner side forms the production liquid passage penetrated from the bottom to top；
Upper valve base, it is fixed in the production liquid passage, upper valve ball is seated on the upper valve base；
Lower valve base, it is fixed in the production liquid passage, lower valve ball is seated on the lower valve base, the lower valve base is located at the upper valve
Seat lower section, and below the screen casing.
2. sand settling type ball-and-seat as claimed in claim 1, it is characterised in that by upper between the upper end cover and the screen casing
Central tube is connected, and the upper valve base is fixed in the upper center tube, is had on the inwall of the upper center tube and is located on described
Valve ball top and the positive stop lug boss spacing to the upper valve ball.
3. sand settling type ball-and-seat as claimed in claim 2, it is characterised in that also axially through having first on the upper end cover
Connecting hole, the upper end of the upper center tube are socketed in first connecting hole, and the sand setting passage is positioned at the described first connection
The outside in hole.
4. the sand settling type ball-and-seat as described in any one of claims 1 to 3, it is characterised in that the bottom end cover and the screen casing
Between connected by lower center tube, the lower valve base is fixed in the lower center tube, the lower end of the screen casing stretch into it is described under
In central tube, and it is spacing to the lower valve ball.
5. sand settling type ball-and-seat as claimed in claim 4, it is characterised in that axially through there is the second company on the bottom end cover
Hole is connect, the lower end of the lower center tube is socketed in second connecting hole.
6. sand settling type ball-and-seat as claimed in claim 1, it is characterised in that the sand setting passage corresponds to the storage sand space and set
Put, the shape of the sand setting passage and the form fit in the storage sand space.
7. the sand settling type ball-and-seat as described in claim 1 or 6, it is characterised in that the storage sand space is annular space, described
Sand setting passage includes the sand setting hole of two arcs, and two sand setting holes are spaced in a ring.
8. the sand settling type ball-and-seat as described in any one of claims 1 to 3, it is characterised in that the outer barrel is included from top to bottom
Top connection, outer tube and the lower contact being sequentially connected, the upper end cover sealing are socketed in the inside top connection, and the bottom end cover is close
Big envelope is connected on the inside of the lower contact, and the screen casing is located on the inside of the outer tube.
9. sand settling type ball-and-seat as claimed in claim 8, it is characterised in that the inwall of the top connection be provided with radially to
Projecting inward first annular boss, the top of the upper end cover is against the first annular boss；
The inwall of the lower contact is provided with the second annular boss for projecting radially inwards, and the bottom of the bottom end cover is against institute
State the second annular boss.
10. the sand settling type ball-and-seat as described in any one of claims 1 to 3, it is characterised in that the screen casing be cutting seam sieve tube or
Punch screen casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341271.2U CN206830130U (en) | 2017-04-01 | 2017-04-01 | Sand setting type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341271.2U CN206830130U (en) | 2017-04-01 | 2017-04-01 | Sand setting type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206830130U true CN206830130U (en) | 2018-01-02 |
Family
ID=60767199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720341271.2U Active CN206830130U (en) | 2017-04-01 | 2017-04-01 | Sand setting type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206830130U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022713A (en) * | 2019-11-18 | 2020-04-17 | 天津精工石油专用管件股份有限公司 | Check valve for oil pipe |
| CN111927426A (en) * | 2020-09-04 | 2020-11-13 | 北京化工大学 | Sand removal process for underground local reverse circulation and multistage sand setting |
| CN112483065A (en) * | 2020-11-16 | 2021-03-12 | 东营百华石油技术开发有限公司 | Sand setting device and method |
-
2017
- 2017-04-01 CN CN201720341271.2U patent/CN206830130U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022713A (en) * | 2019-11-18 | 2020-04-17 | 天津精工石油专用管件股份有限公司 | Check valve for oil pipe |
| CN111022713B (en) * | 2019-11-18 | 2021-07-09 | 天津精工石油专用管件股份有限公司 | Check valve for oil pipe |
| CN111927426A (en) * | 2020-09-04 | 2020-11-13 | 北京化工大学 | Sand removal process for underground local reverse circulation and multistage sand setting |
| CN112483065A (en) * | 2020-11-16 | 2021-03-12 | 东营百华石油技术开发有限公司 | Sand setting device and method |
| WO2022099726A1 (en) * | 2020-11-16 | 2022-05-19 | 东营百华石油技术开发有限公司 | Sand settling device and method |
| CN112483065B (en) * | 2020-11-16 | 2022-06-07 | 东营百华石油技术开发有限公司 | Sand setting device and method |
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