CN209539340U - Bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator - Google Patents
Bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator Download PDFInfo
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- CN209539340U CN209539340U CN201920178563.8U CN201920178563U CN209539340U CN 209539340 U CN209539340 U CN 209539340U CN 201920178563 U CN201920178563 U CN 201920178563U CN 209539340 U CN209539340 U CN 209539340U
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- flow regulator
- antireflux
- bridge
- low voltage
- downhole flow
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Abstract
A kind of bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator.Mainly solve the problems, such as that existing injection well downhole flow regulator can return water to well head in stratum in closing well debugging.It is characterized by: upper joint sleeve (2) bottom is connected with main body (3), axial centre bore (17) are provided at main body (3) inside center, centre bore (17) periphery has main aperture (15), secondary orifices (16), flowing hole (18), it is wherein provided between main aperture (15) and secondary orifices (16) waterflood path (19), it is provided between secondary orifices (16) and flowing hole (18) and opens valve passage (20), water filling port (22) are provided on outer wall in the middle part of the secondary orifices (16), pressure release passage (21) are provided in secondary orifices (16) bottom outer wall.For the bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator in adjustment water injection rate and after stopping water filling, stratum will not return water to well head, avoid waste of energy and pollution environment, and seperated layer water injection may be implemented.
Description
Technical field
The utility model relates to oilfield, specifically a kind of bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator.
Background technique
According to the requirement of oil field development, the water injection rate different to each layer of injection allocation of water injection well is needed, thus needs to test
To each layer of progress injection allocation, but in closing well debugging, stratum can return water to well head for department, first is that pollution environment, second is that waste energy
Source, while being also not easy to employee's operation.
Utility model content
In order to overcome the shortcomings of that existing injection well downhole flow regulator can return water in stratum in closing well debugging to well head, the utility model is provided
A kind of bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator, the bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator is in adjustment water injection rate and stopping
After water filling, stratum will not return water to well head, avoid waste of energy and pollution environment, and seperated layer water injection may be implemented.
The technical solution of the utility model is: a kind of bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator, including top connection, under connect
Head, the top connection bottom are connected with upper joint sleeve, and the upper joint sleeve bottom is connected with main body, and lower body part passes through lower connection
Set connection lower contact；Be provided with axial centre bore at the body interior center, centre bore periphery have main aperture, secondary orifices and
Several flowing holes, the main aperture bottom are communicated with centre bore, and flowing hole is through-hole, and water filling is wherein provided between main aperture and secondary orifices
Channel is provided between secondary orifices and flowing hole and opens valve passage, is provided with water filling port in the middle part of the secondary orifices on outer wall, in secondary orifices bottom outer wall
It is provided with pressure release passage；The secondary orifices inner bottom is equipped with spring, and spring top is equipped with piston, and upper piston area is connected with umbrella valve
Bar, the upper end passes through valve body built in conical surface seal after umbrella shape valve rod passes through valve pocket.
Inlet opening and fluid hole are had on the built-in body wall, wherein inlet opening is communicated with waterflood path, out
Fluid apertures is communicated with water filling port.
The main aperture is built-in with blanking plug, is equipped with water nozzle inside blanking plug.
The main body is connected with guiding trestle, is fixed with guide way inside guiding trestle.
Centralizer body is equipped with inside the connector sleeve, centralizer body bottom is connected by fixing screws with main body.
The utility model has the following beneficial effects: the injection well downhole flow regulator can be according to water injection rate more due to taking above scheme
Change blanking plug, and when adjusting water injection rate and stopping operation, will not there is a situation where stratum to return water to well head, avoid waste
Resource and pollution environment；It can be filled the water simultaneously to other layers while stopping and being filled the water to a certain layer, flexible operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of main body；
Fig. 3 is the cross-sectional view of the A-A along Fig. 2；
Fig. 4 is the cross-sectional view of the B-B along Fig. 2；
Fig. 5 is the cross-sectional view of the C-C along Fig. 2；
Fig. 6 is the structural schematic diagram of blanking plug；
Fig. 7 is the enlarged drawing in Fig. 1 at I.
1- top connection in figure, 2- upper joint sleeve, 3- main body, 4- lower joint sleeve, 5- lower contact, 6- centralizer body, the fixed spiral shell of 7-
Nail, valve body built in 8-, 9- umbrella shape valve rod, 10- valve pocket, 11- piston, 12- spring, 13- guiding trestle, 14- guide way, 15- master
Hole, 16- secondary orifices, 17- centre bore, 18- flowing hole, 19- waterflood path, 20- open valve passage, 21- pressure release passage, 22- water filling port,
23- blanking plug, 24- water nozzle, 25- inlet opening, 26- fluid hole.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Fig. 1 to Fig. 7, a kind of bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator, including top connection 1, lower contact 5, institute
It states 1 bottom of top connection and is connected with upper joint sleeve 2,2 bottom of upper joint sleeve is connected with main body 3, and 3 lower part of main body passes through lower connection
4 connection lower contact 5 of set.It is provided with axial centre bore 17 at 3 inside center of main body, centre bore 17 penetrates through whole main body, in
17 periphery of heart hole has main aperture 15, secondary orifices 16 and several flowing holes 18, and wherein 15 bottom of main aperture and centre bore 17 is big
It is communicated at diameter, secondary orifices 16 is not through hole, and flowing hole 18 is through hole.It is logical that water filling is provided between the main aperture 15 and secondary orifices 16
Road 19 is provided between the flowing hole 18 adjacent thereto of secondary orifices 16 and opens valve passage 20, is provided with water filling on the 16 middle part outer wall of secondary orifices
Mouthfuls 22, pressure release passage 21 is provided in 16 bottom outer wall of secondary orifices.In the main aperture 15 can fishing plugging device 23, set inside blanking plug 23
There is water nozzle 24.The secondary orifices 16 is connected with built-in valve body 8 by internal screw thread, and 16 inner bottom of secondary orifices is equipped with spring 12, spring 12
Top is equipped with piston 11, and 12 upper end of spring is withstood on piston 11.11 top of piston is threaded with umbrella shape valve rod 9, umbrella shape valve rod 9
Top is taper, and the upper end passes through valve body 8 built in conical surface seal after umbrella shape valve rod 9 passes through valve pocket 10.8 side wall of the built-in valve body
On have inlet opening 25 and fluid hole 26, wherein inlet opening 25 is communicated with waterflood path 19, fluid hole 26 and water filling port 22
It communicates.Built-in 8 bottom of valve body is equipped with valve pocket 10,10 sets of valve pocket outside umbrella shape valve rod 9 and piston 11, and 10 side wall of valve pocket
Middle part is provided with through-hole, and position is corresponding with valve passage 20 is opened.Centralizer body 6,6 bottom of centralizer body are equipped with inside the upper joint sleeve 2
Portion is connected by fixing screws 7 with main body 3, and the main body 3 is connected with guiding trestle 13, and guiding is fixed with inside guiding trestle 13
Body 14.
The bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator forms multistage water injection string together with packer, and tubing string is gone into the well process
In, throwing in the main aperture 15 in main body 3 has blanking plug 23, in closing seal shape between 8 inner hole of umbrella shape valve rod 9 and built-in valve body
State, water will not enter inside tubing string.
After the completion of packer release when normal water filling, on the one hand water passes through the blanking plug in main aperture 15 under the effect of the pressure
Water nozzle 24 in 23 enters waterflood path 19, is entered in built-in valve body 8, is acted on umbrella shape valve rod 9 by inlet opening 25；Separately
One side water is entered by flowing hole 18 opens valve passage 20, the downward compressed spring 12 of piston 11 is pushed, in the work of the two resultant forces
Under, umbrella shape valve rod 9 is opened by the pressure difference of very little, can normally be filled the water by water filling port 22.
When some layer of position needs to adjust water injection rate, stops water filling, pull blanking plug 23 out, replace corresponding water nozzle 24, this
When, the pressure inside tubing string is less than strata pressure, and on the one hand under the upward elastic force effect of spring 12, another aspect water is by letting out
Pressure passageway 21 enters, and pushes up piston 11 and umbrella shape valve rod 9 is driven to pass through the pressure difference of very little under the action of the two resultant forces
Umbrella shape valve rod 9 can be closed, realizes antireflux function.
When needing to measure certain layer pressure or judging pouring-stop layer whether there is or not absorbing water, measuring instrument is set in main body 3
Centre bore 17 at, upper and lower minor diameter position sealing in centre bore 17 at this time, which stops water filling, and other layers pass through overcurrent
Hole 18 can normally fill the water.Under the action of water injection pressure, water flowing hole 18, which enters, opens valve passage 20, pushes piston 11 to moving down
Dynamic compressed spring 12, opens umbrella shape valve rod 9 and built-in 8 bore passage of valve body, to measure in the case where other layers do not stop note
Whether there is or not the changing values of water suction for the pressure or pouring-stop layer of this layer.
Claims (5)
1. a kind of bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator, including top connection (1), lower contact (5), top connection (1) bottom
Portion is connected with upper joint sleeve (2), it is characterised in that: upper joint sleeve (2) bottom is connected with main body (3), in the main body (3)
Be provided at portion center axial centre bore (17), centre bore (17) periphery have main aperture (15), secondary orifices (16) and several
Flowing hole (18), main aperture (15) bottom are communicated with centre bore (17), and flowing hole (18) is through-hole, wherein main aperture (15) and pair
It is provided between hole (16) waterflood path (19), is provided between secondary orifices (16) flowing hole (18) adjacent thereto and opens valve passage (20),
It is provided with water filling port (22) on outer wall in the middle part of the secondary orifices (16), is provided with pressure release passage (21) in secondary orifices (16) bottom outer wall；It is described
Secondary orifices (16) inner bottom is equipped with spring (12), and spring (12) top is equipped with piston (11), and piston (11) top is connected with umbrella shape
Valve rod (9), umbrella shape valve rod (9) passes through valve pocket (10), and the upper end passes through valve body (8) built in conical surface seal afterwards.
2. bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator according to claim 1, it is characterised in that: the built-in valve body
(8) inlet opening (25) and fluid hole (26) are had on side wall, wherein inlet opening (25) is communicated with waterflood path (19), out liquid
Hole (26) is communicated with water filling port (22).
3. bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator according to claim 2, it is characterised in that: in the main aperture (15)
It is equipped with blanking plug (23), is equipped with water nozzle (24) inside blanking plug (23).
4. bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator according to claim 3, it is characterised in that: the main body (3) is even
It is connected to guiding trestle (13), is fixed with guide way (14) inside guiding trestle (13).
5. bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator according to claim 4, it is characterised in that: the upper joint sleeve
(2) internal to be equipped with centralizer body (6), centralizer body (6) bottom is connected by fixing screws (7) with main body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920178563.8U CN209539340U (en) | 2019-01-31 | 2019-01-31 | Bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920178563.8U CN209539340U (en) | 2019-01-31 | 2019-01-31 | Bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209539340U true CN209539340U (en) | 2019-10-25 |
Family
ID=68272898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920178563.8U Active CN209539340U (en) | 2019-01-31 | 2019-01-31 | Bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209539340U (en) |
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2019
- 2019-01-31 CN CN201920178563.8U patent/CN209539340U/en active Active
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