CN209339919U - A kind of level pressure water dispensing apparatus - Google Patents
A kind of level pressure water dispensing apparatus Download PDFInfo
- Publication number
- CN209339919U CN209339919U CN201821796874.2U CN201821796874U CN209339919U CN 209339919 U CN209339919 U CN 209339919U CN 201821796874 U CN201821796874 U CN 201821796874U CN 209339919 U CN209339919 U CN 209339919U
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- spring
- lower contact
- piston component
- top connection
- piston
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Abstract
A kind of level pressure water dispensing apparatus, including top connection, lower contact, piston component, housing, spring, central spindle of the spring, pin and sheath；Top connection and lower contact are tubulose, and one end of top connection is set on the outside of one end of lower contact, and piston component is tubulose, and piston component is set in lower contact close to the outside of top connection one end；Housing is set in the outside of piston component and top connection, and housing, top connection, lower contact and piston component surround annular water-injecting cavity；The lower contact outer sheath of piston component side is equipped with central spindle of the spring, is fixed between central spindle of the spring and lower contact by pin；Spring is set on the outside of central spindle of the spring, fixing sleeve is gone back in lower contact equipped with sheath, and one end is against the end of piston component to spring under natural conditions, and the other end is against on sheath.The utility model realizes entire Operating Pressure process and had both produced the chock pressure difference of injection, in turn ensures the reliable closing of level pressure injection well downhole flow regulator when stopping note, to improve concentric double pipe dispensing Operating Pressure success rate.
Description
Technical field
The utility model belongs to oil field directional well seperated layer water injection development technique field, in particular to a kind of level pressure water distribution dress
It sets.
Background technique
To solve the problems, such as that it is frequent that produced-water reinjection well corrosion and scaling causes test to be hampered, realize that dispensing the round-the-clock of well reaches
Mark dispensing, early period, innovation formd concentric double pipe zonal injection technology, and obtained certain effect.But with deepening continuously for oil field development
And the appearance of new two method of safety and environmental protection, oil field Operating Pressure construction have become a kind of trend, it is necessary to study one kind be suitble to it is with pressure
The concentric double pipe of operation dispenses downhole tool.It, can not be certainly after level pressure water dispensing apparatus currently on the market is normally-open by investigation
Dynamic to close, when lift pipe string, strata pressure can be transmitted to well head from waterflood path, cannot achieve Operating Pressure.
Utility model content
The purpose of this utility model is to provide a kind of level pressure water dispensing apparatus, to solve the above problems.
To achieve the above object, the utility model uses following technical scheme:
A kind of level pressure water dispensing apparatus, including top connection, lower contact, piston component, housing, spring, central spindle of the spring, pin and
Sheath；Top connection and lower contact are tubulose, and one end of top connection is set on the outside of one end of lower contact, and piston component is pipe
Shape, piston component are set in lower contact close to the outside of top connection one end；Housing is set in the outer of piston component and top connection
Side, housing, top connection, lower contact and piston component surround annular water-injecting cavity；The lower contact outer sheath of piston component side is equipped with
Central spindle of the spring is fixed between central spindle of the spring and lower contact by pin；Spring is set on the outside of central spindle of the spring, also solid in lower contact
Surely it is arranged with sheath, one end is against the end of piston component to spring under natural conditions, and the other end is against on sheath.
Further, piston component includes upper piston, lower piston and T-type sealing ring；Upper piston and lower piston are arranged side by side,
It is provided with T-type sealing ring between upper piston and lower piston, forms piston component.
Further, water injection hole is provided in the lower contact of annular water-injecting cavity position, the length of central spindle of the spring is less than spring
Length, when annular water-injecting cavity water-filling pressurizes, piston component is mobile to drive central spindle of the spring mobile, and shearing force cuts pin, simultaneously
Spring-compressed.
Further, neck bush is arranged in the lower contact of piston component inner side.
Further, sealing rubber ring is provided between housing and top connection, between upper piston and neck bush and neck bush
Sealing rubber ring is provided between lower contact.
Compared with prior art, the utility model has following technical effect:
The utility model level pressure water dispensing apparatus passes through setting spring, when filling the water pressurization from water injection hole, hydraulic drive piston
Component downlink, push the spring elastic compression shear pin are connected to size pipe ring pneumatics Force system to be connected to waterflood path；Stop
After note, compression spring automatically resets under elastic pressure effect, pushes piston component uplink, realizes that waterflood path closes automatically
It closes, prevents pressure from returning out from size pipe ring sky, solving after conventional injection well downhole flow regulator is opened can not be automatically closed, completely cut off size pipe ring sky
Pressure, the problem of can not achieve two-tube dispensing Operating Pressure.It realizes entire Operating Pressure process and had both produced the throttling of injection
Pressure difference, in turn ensures the reliable closing of level pressure injection well downhole flow regulator when stopping note, to improve concentric double pipe dispensing Operating Pressure success rate.
All coupling parts of the utility model are sealed processing with sealing rubber ring, it is ensured that pipe external and internal pressure system
Leakproofness.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Wherein: 1, top connection；2, housing；3, sealing rubber ring；4, upper piston；5, T-type gasket；6, neck bush；7, lower work
Plug；8, pin；9, spring；10, sheath；11, lower contact；12, central spindle of the spring；13, water injection hole.
Specific embodiment
Below in conjunction with attached drawing, the present invention will be further described:
Referring to Fig. 1, a kind of level pressure water dispensing apparatus, including top connection 1, lower contact 11, piston component, housing 2, spring 9,
Central spindle of the spring 12, pin 8 and sheath 10；Top connection 1 and lower contact 11 are tubulose, and one end of top connection 1 is set in lower contact
On the outside of 11 one end, piston component is tubulose, and piston component is set in lower contact 11 close to the outside of 1 one end of top connection；Housing
2 are set in the outside of piston component and top connection 1, and housing 2, top connection 1, lower contact 11 and piston component surround ring-shaped pouring
Water cavity；11 outer sheath of lower contact of piston component side is equipped with central spindle of the spring 12, passes through between central spindle of the spring 12 and lower contact 11
Pin 8 is fixed；Spring 9 is set in 12 outside of central spindle of the spring, and fixing sleeve is gone back in lower contact 11 equipped with sheath 10, the natural shape of spring 9
One end is against the end of piston component under state, and the other end is against on sheath 10.
Piston component includes upper piston 4, lower piston 7 and T-type sealing ring 5；Upper piston 4 and lower piston 7 are arranged side by side, upper work
It is provided with T-type sealing ring 5 between plug 4 and lower piston 7, forms piston component.
Water injection hole is provided in the lower contact 11 of annular water-injecting cavity position, the length of central spindle of the spring 12 is less than the length of spring 9
Degree, when annular water-injecting cavity water-filling pressurizes, piston component is mobile to drive central spindle of the spring mobile, and shearing force cuts pin 8, while spring
9 compressions.
Neck bush 6 is arranged in the lower contact 11 of piston component inner side.
Sealing rubber ring 3 is provided between housing 2 and top connection 1, between upper piston 4 and neck bush 6 and neck bush 6 with
Sealing rubber ring 3 is provided between lower contact 11.
In implementation process with pressure of going into the well, initial stage level pressure water dispensing apparatus waterflood path is in close state, can completely cut off in,
Outer pipe pressure meets Operating Pressure construction；When the injecting process, by being suppressed out of central tube, hydraulic drive upper piston 4, T-type
Gasket 5,7 downlink of lower piston, 9 elastic compression shear pin 8 of push the spring are connected to size pipe ring to be connected to waterflood path
Pneumatics Force system；After stopping note, compression spring 9 automatically resets under elastic pressure effect, pushes lower piston 7, T-type gasket
5,4 uplink of upper piston realizes that waterflood path is automatically closed, prevents pressure from returning out from size pipe ring sky.
Claims (5)
1. a kind of level pressure water dispensing apparatus, which is characterized in that including top connection (1), lower contact (11), piston component, housing (2),
Spring (9), central spindle of the spring (12), pin (8) and sheath (10)；Top connection (1) and lower contact (11) are tubulose, top connection
(1) one end is set on the outside of one end of lower contact (11), and piston component is tubulose, and piston component is set in lower contact (11) and leans on
The outside of nearly top connection (1) one end；Housing (2) is set in the outside of piston component and top connection (1), housing (2), top connection
(1), lower contact (11) and piston component surround annular water-injecting cavity；Lower contact (11) outer sheath of piston component side is equipped with spring
Mandrel (12), it is fixed by pin (8) between central spindle of the spring (12) and lower contact (11)；Spring (9) is set in central spindle of the spring
(12) on the outside of, fixing sleeve is gone back in lower contact (11) equipped with sheath (10), spring (9) is against piston component in one end under natural conditions
End, the other end are against on sheath (10).
2. a kind of level pressure water dispensing apparatus according to claim 1, which is characterized in that piston component include upper piston (4), under
Piston (7) and T-type sealing ring (5)；Upper piston (4) and lower piston (7) are arranged side by side, and set between upper piston (4) and lower piston (7)
It is equipped with T-type sealing ring (5), forms piston component.
3. a kind of level pressure water dispensing apparatus according to claim 1, which is characterized in that the lower contact of annular water-injecting cavity position
(11) water injection hole is provided on, the length of central spindle of the spring (12) is less than the length of spring (9), when annular water-injecting cavity water-filling pressurizes,
Piston component is mobile to drive central spindle of the spring mobile, and shearing force cuts pin (8), while spring (9) compresses.
4. a kind of level pressure water dispensing apparatus according to claim 1, which is characterized in that the lower contact of piston component inner side
(11) neck bush (6) are arranged on.
5. a kind of level pressure water dispensing apparatus according to claim 1, which is characterized in that set between housing (2) and top connection (1)
It is equipped with sealing rubber ring (3), is respectively provided between upper piston (4) and neck bush (6) and between neck bush (6) and lower contact (11)
There are sealing rubber ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821796874.2U CN209339919U (en) | 2018-11-01 | 2018-11-01 | A kind of level pressure water dispensing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821796874.2U CN209339919U (en) | 2018-11-01 | 2018-11-01 | A kind of level pressure water dispensing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209339919U true CN209339919U (en) | 2019-09-03 |
Family
ID=67747035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821796874.2U Active CN209339919U (en) | 2018-11-01 | 2018-11-01 | A kind of level pressure water dispensing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209339919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209311A (en) * | 2018-11-01 | 2019-01-15 | 中国石油天然气股份有限公司 | A kind of level pressure water dispensing apparatus |
-
2018
- 2018-11-01 CN CN201821796874.2U patent/CN209339919U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209311A (en) * | 2018-11-01 | 2019-01-15 | 中国石油天然气股份有限公司 | A kind of level pressure water dispensing apparatus |
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