CN208934658U - Downhole production and backwash dual function valve - Google Patents
Downhole production and backwash dual function valve Download PDFInfo
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- CN208934658U CN208934658U CN201821801320.7U CN201821801320U CN208934658U CN 208934658 U CN208934658 U CN 208934658U CN 201821801320 U CN201821801320 U CN 201821801320U CN 208934658 U CN208934658 U CN 208934658U
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- valve
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- plate valve
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Abstract
The utility model discloses downhole production and backwash dual function valve, including general assembly valve body, general assembly valve body includes single stream ball valve, backwash valve, plate valve.Single stream ball valve includes: ball-and-seat body, single stream core, ball seat；Backwash valve includes: backwash valve body, filtration core, backwash core, offers inlet on the lateral wall of backwash valve body and close to the position of filtration core；Plate valve includes: plate valve valve body, plate valve lid, plate valve seat, offers putting hole on the side wall of plate valve seat, and plate valve lid is set to the position of putting hole and side walls hinged with plate valve seat.The utility model has the beneficial effects that forming duplicate protection to well liquid water conservancy diversion by setting plate valve and single stream ball valve.In non-fuel-displaced work, the inner cavity closing of plate valve seat is formed an anti-backflow protection again by the plate valve lid free-falling rotation in plate valve, and single list stream core free-falling flowed in ball valve to the passway of single flow channel one is blocked, forms double anti-backflow and protect.
Description
Technical field
The utility model relates to oil well pipe apparatus field, especially downhole production and backwash dual function valves.
Background technique
Current most of machine-pumped oil well flow string is substantially by tubing hanger, oil pipe and pipe nipple, safety valve, cable packing excessively
Device is located connector, Y-shaped connector (general conjunction well does not have to the connector), electric pump unit, circulation slide sleeve, location sealing, insertion sealing, production
Sliding sleeve, Inter-zonal packing device and the downhole tools such as circle is stifled are composed, and before lift pipe string is overhauled in termination of pumping, need to mobilize steel wire operation
It opens circulation slide sleeve or pounds gate gurgle valve (Pu Hejing) and carry out clean-out service, it is not only time-consuming, it also generates open and close sliding sleeve or pounds draining
The expense of sliding sleeve or gate gurgle valve is bought before the operating cost and lower tubular column of valve, and steel wire operation presence is hampered, meets card or disconnected steel
A kind of operating risks such as silk, it is therefore desirable to new tubing string valve body structure.
Utility model content
Purpose of the utility model is to solve the above problems, devise downhole production and backwash dual function valve.
Downhole production and backwash dual function valve, including general assembly valve body, the general assembly valve body include single stream ball valve, backwash valve,
Plate valve, and three's coaxial line is linked in sequence.
Single stream ball valve includes: ball-and-seat body, the single stream core being set to inside ball-and-seat body, is set to ball-and-seat body
Ball seat internal and with single stream core cooperation；
The backwash valve include: backwash valve body, be set to backwash valve inner and be biased to its lateral wall filtration core, setting
In in the backwash core in backwash valve body and with filtration core cooperation, the lateral wall of the backwash valve body and close to the filtration core
Position offers inlet；
The plate valve includes: plate valve valve body, the plate valve lid for being set to plate valve valve inner, the plate with plate valve lid cooperation
Valve seat, offers putting hole on the side wall of the plate valve seat, the plate valve lid be set to the position of the putting hole and with it is described
Plate valve seat it is side walls hinged.
Single flow channel one, single flow channel two, single flow channel three, the single flow channel one are offered inside the ball-and-seat body
Internal diameter be less than the outer diameter of single stream core.
Further, offer screw thread on the inner wall of single flow channel three, one end of the ball seat and with single stream core
The part of contact is provided with multiple well liquid flow control slots.
Further, offered on the inner wall of the filtration core be connected to its outer wall multiple discharge orifices, the inlet with
The discharge orifice connection.
Further, the size of the plate valve lid is equal with the internal diameter of the plate valve seat.
Further, the filtration core is ceramic element, and the backwash core is Ceramic Balls.
The beneficial effect is that 1. flow ball valve by setting plate valve and list, duplicate protection is formed to well liquid water conservancy diversion.It is non-go out
When oil work, the plate valve lid free-falling in plate valve is rotated, and the inner cavity of plate valve seat is closed, and anti-backflow is protected again for formation one, single
Single stream core free-falling in ball valve is flowed to the passway of single flow channel one, is blocked, forms double anti-backflow protection.
2. backwash valve uses ceramic material, the service life of equipment entirety can be enhanced.Due to the regular need of backwash valve
Participate in the impact and corrosion of oil liquid and flushing fluid, the two can make backwash valve have abrasion-resistance, resistance to using ceramic material
Corrosivity and resistance to fouling tendency, prolong its service life.
3. the requirement that single stream ball valve can satisfy well liquid conveying big flow.Single stream core and ball seat in single stream ball valve are adopted
With axial setting, the axial well liquid circulation passage of single stream ball valve inner cavity will not be occupied, when oil transportation works, single core that flows connects with ball seat
Touching, the flow of well liquid is determined by the circulation area of multiple well liquid flow control slots, and the sectional area of well liquid flow control slot can add in early period
Working hour freely changes, to meet the requirement of big flow.
Detailed description of the invention
Fig. 1 is the half section structure diagram of downhole production described in the utility model and backwash dual function valve；
Fig. 2 is the structure shaft side figure of downhole production described in the utility model and backwash dual function valve；
Fig. 3 is the inlet structural schematic diagram of downhole production described in the utility model and backwash dual function valve；
Fig. 4 is the ball socket structure schematic diagram of downhole production described in the utility model and backwash dual function valve；
Fig. 5 is the filter core structure schematic diagram of downhole production described in the utility model and backwash dual function valve；
Fig. 6 is the plate valve holder structure shaft side figure of downhole production described in the utility model and backwash dual function valve；
Fig. 7 is the half cutting structural schematic diagram of plate valve seat of downhole production described in the utility model and backwash dual function valve；
Fig. 8 is the plate valve lid structural schematic diagram of downhole production described in the utility model and backwash dual function valve；
In figure, 1, general assembly valve body；2, single stream ball valve；201, ball-and-seat body；202, single stream core；203, ball seat；204, single
Circulation road one；205, single flow channel two；206, single flow channel three；207, screw thread；208, well liquid flow control slot；3, backwash valve；301,
Backwash valve body；302, filtration core；303, backwash core；304, inlet；305, discharge orifice；4, plate valve；401, plate valve valve body；
402, plate valve seat；403, plate valve lid；404, putting hole.
Specific embodiment
The utility model is specifically described with reference to the accompanying drawing, as shown in Figs. 1-2, downhole production and backwash are difunctional
Valve, including general assembly valve body 1, the general assembly valve body 1 includes single stream ball valve 2, backwash valve 3, plate valve 4, and three's coaxial line sequence connects
It connects；The downhole production and backwash dual function valve are mounted in the upper end of the latent pump discharge of power electric of oil well pipe, can play
Fuel-displaced when production, well-flushing when maintenance, when shutdown, blocks oil well, the effect for preventing well liquid from flowing backwards；Single stream ball valve 2 includes: list
Stream valve body 201, is set to 201 inside of ball-and-seat body and and Dan Liuqiu at the single stream core 202 being set to inside ball-and-seat body 201
The ball seat 203 that core 202 cooperates, single stream ball valve 2 are avoided because of operational stoppage for preventing the well liquid in well casing from flow back, by
Well liquid and impurity under are deposited to pump head；The backwash valve 3 includes: backwash valve body 301, is set in backwash valve body 301
Portion and the backwash core 303 for being biased to the filtration core 302 of its lateral wall, being set in 3 body of backwash valve and cooperating with filtration core 302,
Inlet 304, the backwash valve 3 are offered on the lateral wall of the backwash valve body 301 and close to the position of the filtration core 302
Reacting cycle well-flushing when for overhauling, by 304 feed liquor of inlet, under the action of ground is pumped, flushing fluid can be first by institute
The backwash core 303 stated on filtration core 302 opens, and flushing fluid enters valve inner space, then under the effect of gravity under
It falls, single stream core 202 in single stream ball valve 2 is pushed, single stream core 202 can be by the single flow channel one
204 block, and flushing fluid is caused pump head can not to be avoided impaired, then flushing fluid is upward along 3 inner cavity of backwash valve downstream to pump head
It walks, opens the plate valve lid 403 under pressure and reacting cycle operation is carried out to oil well；The pump production phase is being opened, in well liquid pressure
Under the action of power, the backwash core 303 can be depressed into the end of the filtration core 302, the filtration core 302 is blocked,
It avoids well liquid from flowing out from the inlet 304, well liquid is avoided to enter oil jacket annulus；
As shown in figs 6-8, the plate valve 4 includes: plate valve valve body 401, the plate valve lid being set to inside plate valve valve body 401
403, with the plate valve seat 402 of the plate valve lid 403 cooperation, putting hole 404 is offered on the side wall of the plate valve seat 402, it is described
Plate valve lid 403 is set to the position of the putting hole 404 and side walls hinged with the plate valve seat 402, the plate valve lid 403 with
The plate valve seat 402 is hinged, and the plate valve lid 403 can be freely rotated along its articulated shaft, when the utility model is placed in underground, institute
It states plate valve lid 403 to close under the effect of gravity, 402 inner cavity of plate valve seat can be blocked, constituted with single stream ball valve 2 dual
Anti-backflow protection, while avoiding the large granular impurity of top from depositing to single stream 202 surface of core and causing poorly sealed, entrance
In oil well；In the production phase, well liquid can open the plate valve lid 403, and the plate valve lid 403 reaches the putting hole 404
Position will not influence normal fuel-displaced.
As shown in Figs. 1-2, single flow channel 1, single flow channel 2 205, Dan Liu are offered inside the ball-and-seat body 201
Channel 3 206, the internal diameter of the single flow channel 1 is less than the outer diameter of single stream core 202, for guaranteeing the Dan Liuqiu
Core 202 can and can only move in the single flow channel 2 205.
As shown in figure 4, screw thread 207 is offered on the inner wall of single flow channel 3 206, for connecting with the backwash valve screw thread
It connects, one end of the ball seat 203 and the part contacted with single stream core 202 is provided with multiple well liquid flow control slots 208, institute
The proper flow that well liquid flow control slot 208 is used to guarantee well liquid when work is stated, when normal production operation, under the promotion of well liquid,
Single stream core 202 can be contacted with the ball seat 203, if designed without special structure, single stream 202 meeting of core
Directly the duct that well liquid circulates is blocked, in order to avoid this phenomenon, is provided with multiple well liquid flow control slots 208, Duo Gesuo
Well liquid flow control slot 208 is stated integral into claw type, when single stream core 202 contradicts on the ball seat 203 under the promotion of well liquid
When, well liquid still can be passed to 3 part of backwash valve by multiple well liquid flow control slots 208.
As shown in figs. 3 and 5, the multiple discharge orifices 305 for being connected to its outer wall, institute are offered on the inner wall of the filtration core 302
Inlet 304 is stated to be connected to the discharge orifice 305.
As shown in figs 6-8, the size of the plate valve lid 403 is equal with the internal diameter of the plate valve seat 402, guarantees the plate valve
Lid 403 will not be stuck in while can blocking 402 inner cavity of plate valve seat to be influenced to work normally on its inner wall.
As shown in Figure 1, Figure 2, Figure 6 shows, the filtration core 302 be ceramic element, the backwash core 303 be Ceramic Balls, two
Person can make the backwash valve 3 have abrasion-resistance, corrosion resistance and resistance to fouling tendency using ceramic material.
Working principle:
The assembling process of the utility model:
1. first single stream core is placed in single flow channel two, then ball seat is placed in single flow channel three, so that well
Hydraulic control chute is corresponding with single stream core, completes the assembly of single stream ball valve；
2. backwash core is first placed in backwash valve (cavity where filtration core is put into), then filtration core is put into instead
(before singly stream ball valve is connect with backwash valve, there is hole in backwash valve bottom end, for placing filtration core) is washed in valve, backwash valve is completed
Assembly；
3. plate valve seat is placed in plate valve, guarantee that the dress of plate valve downwards (position as shown in Figure 1), is completed in plate valve lid position
Match；
4. single stream ball valve, backwash valve and the plate valve sequence completing tentatively to assemble are threadedly coupled, it is practical new that this can be completed
The assembly of type.
The use process of the utility model:
The upper end of the latent pump discharge of the power electric that the utility model is mounted vertically in oil well pipe guarantees plate valve in upper, list
Ball valve is flowed under；
In the production phase, well liquid is entered by single flow channel one, and well liquid opens single stream core, is entered through well liquid flow control slot anti-
Valve body is washed, backwash core is squeezed by well liquid, blocks it by filtration core, avoids inlet oil leak, and well liquid continues to rise, by plate valve
Caping is opened, and is sprayed from plate valve inner cavity；
When overhaul of the equipments needs well-flushing, water is sent by the inlet, flushing fluid can be first by the institute on the filtration core
It states backwash core to open, then fall under the effect of gravity, single stream core in single stream ball valve is pushed, the list
Stream core can block the single flow channel one, cause flushing fluid can not be downstream to inside oil well, avoiding it from damaging pump head and dirt
Stratum is contaminated, then flushing fluid is walked upwards along the backwash valve insertion, is opened the plate valve and is carried out reacting cycle clean-out service；
In underground equipment maintenance down, single core that flows blocks single flow channel one because being self-possessed, and backwash core will because of self weight
Filtration core blocks, and the free-falling of plate valve lid is rotated around its articulated shaft, and plate valve inner cavity is sealed, in this way, can examine to avoid in shutdown
When repairing, the large granular impurity in well is fallen in single stream core, influences whole plugging effect.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solutions of the utility model, the technology of the art
Personnel embody the principles of the present invention to some variations that some of them part may be made, and belong to the utility model
Protection scope within.
Claims (6)
1. downhole production and backwash dual function valve, including general assembly valve body (1), which is characterized in that the general assembly valve body (1) includes single
Ball valve (2), backwash valve (3), plate valve (4) are flowed, and three's coaxial line is linked in sequence；
Single stream ball valve (2) include: ball-and-seat body (201), be set to internal single stream core (202) of ball-and-seat body (201),
It is set to the ball seat (203) that ball-and-seat body (201) is internal and cooperates with single stream core (202)；
The backwash valve (3) includes: backwash valve body (301), is set to backwash valve body (301) inside and is biased to the mistake of its lateral wall
Filter core (302) is set to backwash valve (3) in vivo and the backwash core (303) with filtration core (302) cooperation, the backwash valve body
(301) inlet (304) are offered on lateral wall and close to the position of the filtration core (302)；
The plate valve (4) include: plate valve valve body (401), be set to the internal plate valve lid (403) of plate valve valve body (401), with it is described
The plate valve seat (402) of plate valve lid (403) cooperation, offers putting hole (404), the plate on the side wall of the plate valve seat (402)
Valve deck (403) is set to the position of the putting hole (404) and hinged with the plate valve seat (402), the plate valve lid (403)
It can be freely rotated along its articulated shaft.
2. downhole production according to claim 1 and backwash dual function valve, which is characterized in that the ball-and-seat body (201)
Inside offers single flow channel one (204), single flow channel two (205), single flow channel three (206), the single flow channel one (204)
Internal diameter be less than the outer diameter of single stream core (202).
3. downhole production according to claim 2 and backwash dual function valve, which is characterized in that single flow channel three (206)
It is offered on inner wall screw thread (207), one end of the ball seat (203) and the part setting contacted with single stream core (202)
There are multiple well liquid flow control slots (208).
4. downhole production according to claim 1 and backwash dual function valve, which is characterized in that the filtration core (302)
The multiple discharge orifices (305) for being connected to its outer wall are offered on inner wall, the inlet (304) is connected to the discharge orifice (305).
5. downhole production according to claim 1 and backwash dual function valve, which is characterized in that the plate valve lid (403)
Size is equal with the internal diameter of the plate valve seat (402).
6. downhole production according to claim 1 and backwash dual function valve, which is characterized in that the filtration core (302) is
Ceramic element, the backwash core (303) are Ceramic Balls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821801320.7U CN208934658U (en) | 2018-11-02 | 2018-11-02 | Downhole production and backwash dual function valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821801320.7U CN208934658U (en) | 2018-11-02 | 2018-11-02 | Downhole production and backwash dual function valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208934658U true CN208934658U (en) | 2019-06-04 |
Family
ID=66726906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821801320.7U Active CN208934658U (en) | 2018-11-02 | 2018-11-02 | Downhole production and backwash dual function valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208934658U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209295A (en) * | 2018-11-02 | 2019-01-15 | 天津诚泽畅石油技术有限公司 | Downhole production and backwash dual function valve |
-
2018
- 2018-11-02 CN CN201821801320.7U patent/CN208934658U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209295A (en) * | 2018-11-02 | 2019-01-15 | 天津诚泽畅石油技术有限公司 | Downhole production and backwash dual function valve |
| CN109209295B (en) * | 2018-11-02 | 2023-11-24 | 天津诚泽畅石油技术有限公司 | Underground production and backwashing dual-function valve |
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