CN205778783U - A kind of one throws two points of water distribution plugs - Google Patents
A kind of one throws two points of water distribution plugs Download PDFInfo
- Publication number
- CN205778783U CN205778783U CN201620510001.5U CN201620510001U CN205778783U CN 205778783 U CN205778783 U CN 205778783U CN 201620510001 U CN201620510001 U CN 201620510001U CN 205778783 U CN205778783 U CN 205778783U
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- pipe
- apopore
- water filling
- packing
- filling port
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Abstract
The utility model discloses a kind of one and throw two points of water distribution plugs, including core pipe and packing pipe, described core pipe box is located at inside described packing pipe；The top of core pipe is provided with pod apertures, and bottom tube wall is provided with the first apopore and the second apopore；Being provided with the sealing ring adaptive with sleeve pipe outside described packing pipe, on packing pipe outer wall, the upper and lower of described sealing ring is respectively arranged with top water filling port and bottom water filling port；Described first apopore and described second apopore are adaptive with described top water filling port and water filling port position, described bottom respectively.This utility model one is thrown the core pipe that two points of water distribution plugs are provided by the first apopore and the second apopore and is coordinated with the packing pipe being provided with top water filling port and bottom water filling port, makes water filling, merely through sleeve pipe corresponding to water filling layer, two-layer water filling layer be distinguished water filling simultaneously；Avoid water filling and whole section of top sleeve pipe is produced high pressure, thus decrease casing leakage phenomenon, also save sleeve pipe maintenance cost, reduce production cost.
Description
Technical field
This utility model relates to oil-field flooding kit technical field, particularly to a kind of water distribution plug.
Background technology
At present, when water injection well uses point two sections of water fillings, general under enter a packer, oil pipe note one section, sleeve pipe note one section, ground passes through water nozzle or the injection rate of each layer of valve regulation, and the advantage of this technique is simple to operate.But, can be along with the life-time service of this technique, in the case of the most with pressure, there is the situation of the well cementation above casing leakage of section in sleeve pipe；Thus directly result in and return water outside water injection well set.Periphery is caused the biggest pollution by the water returning ground, and casing leakage rehabilitation expense is the highest.
Utility model content
It is unique that the purpose of this utility model is to provide a kind of novel structure, easy to use, and can be prevented effectively from two points of water distribution plugs of throwing of casing leakage；Concrete technical scheme is:
A kind of one throws two points of water distribution plugs, and including core pipe and packing pipe, described core pipe box is located at inside described packing pipe；The top of core pipe is provided with pod apertures, and bottom tube wall is provided with the first apopore and the second apopore；Being provided with the sealing ring adaptive with sleeve pipe outside described packing pipe, on packing pipe outer wall, the upper and lower of described sealing ring is respectively arranged with top water filling port and bottom water filling port；Described first apopore and described second apopore are adaptive with described top water filling port and water filling port position, described bottom respectively.
Further, described first apopore and described second apopore are provided with reducer.
Further, the reducer of described first apopore is water injection well choke.
Further, the reducer of described second apopore is made up of spring and hollow piston；During variation in water pressure, described hollow piston moves up and down the opening changing the second apopore.
Further, described packing pipe includes top connection and packing portion, and described sealing ring is arranged on the outer wall in described packing portion.
Further, being arranged with packing bushing pipe in described packing pipe, described sealing ring is arranged on the outer wall of described packing bushing pipe.
Further, being provided with water conservancy diversion bushing pipe in described packing pipe, described water conservancy diversion liner sidewall is provided with the guiding gutter connecting described first apopore and described top water filling port and connecting described second apopore and described bottom water filling port.
This utility model one is thrown the core pipe that two points of water distribution plugs are provided by the first apopore and the second apopore and is coordinated with the packing pipe being provided with top water filling port and bottom water filling port, makes water filling, merely through sleeve pipe corresponding to water filling layer, two-layer water filling layer be distinguished water filling simultaneously；Avoid water filling and whole section of top sleeve pipe is produced high pressure, thus decrease casing leakage phenomenon, also save sleeve pipe maintenance cost, reduce production cost.
Accompanying drawing explanation
Fig. 1 is that this utility model one throws two points of water distribution plug structural representations；
Fig. 2 is core tubular construction schematic diagram.
In figure: 1, core pipe；1.1 rope socket；1.2, pod apertures；1.3, water filling portion；1.4, the first apopore；1.5, sealing ring；1.6, hollow piston；1.7, the second apopore；1.8, spring；2, packing pipe；2.1, top connection；2.2, water conservancy diversion bushing pipe；2.3, water injection well choke；2.4, sealing ring；2.5, packing bushing pipe；2.6, bottom water filling port.
Detailed description of the invention
Below with embodiment, this utility model is more fully illustrated.This utility model can be presented as multiple multi-form, is not construed as the exemplary embodiment being confined to describe here.
For ease of explanation, here can use such as " on ", the space relative terms such as D score " left " " right ", for shown in explanatory diagram a element or feature relative to another element or the relation of feature.It should be understood that in addition to the orientation shown in figure, spatial terminology is intended to include device different azimuth in use or operation.Such as, if the device in figure is squeezed, be stated as being positioned at the element of other elements or feature D score will be located into other elements or feature " on ".Therefore, exemplary term D score can comprise upper and lower both orientation.Device can otherwise position (90-degree rotation or be positioned at other orientation), relatively illustrates used herein of space correspondingly to explain.
As it is shown in figure 1, the two points of water distribution plugs of throwing in the present embodiment, including core pipe 1 and packing pipe 2, it is internal that core pipe 1 is set in packing pipe 2.Core pipe 1 includes the water filling portion 1.3 that rope socket 1.1 and bottom connect；Split arranges the processing facilitating part；It is of course also possible to core pipe 1 to be set to one.Below rope socket 1.1, the top of core pipe 1 is provided with pod apertures 1.2, and bottom tube wall is provided with the first apopore 1.4 and the second apopore 1.7；Packing pipe 2 is outside is provided with the sealing ring 2.4 adaptive with sleeve pipe, and sealing ring 2.4 is the most multiple；On packing pipe 2 outer wall, the upper and lower of sealing ring 2.4 is respectively arranged with top water filling port and bottom water filling port 2.6；First apopore 1.4 and the second apopore 1.7 are adaptive with top water filling port and bottom water filling port 2.6 position respectively.
First apopore 1.4 connects water injection well choke 2.3, naturally it is also possible to use the reducer of other forms.
Second apopore 1.7 can also connect water injection well choke, it is also possible to reducer as shown in Figure 2；The throttle orifice at hollow piston 1.6 center can be as reducer, and spring 1.8 hollow piston 1.6 and the second apopore 1.7 form the reducer of constant current.
Packing pipe 2 includes top connection 2.1 and packing portion, can be arranged on the outer wall in packing portion by sealing ring 2.4.Can also arrange packing bushing pipe 2.5 in packing pipe 2, sealing ring 2.4 is arranged on the outer wall of packing bushing pipe 2.5.Top connection 2.1 can be made to use the mould identical with universal packer with packing portion by arranging packing bushing pipe 2.5, reduce cost, convenient maintenance.
Being provided with water conservancy diversion bushing pipe 2.2 in packing pipe 2, water conservancy diversion bushing pipe 2.2 sidewall is provided with connection the first apopore 1.4 and top water filling port and connect the second apopore 1.7 and the guiding gutter of bottom water filling port 2.6.In like manner, top connection 2.1 can be made to use the mould identical with universal packer with packing portion by arranging water conservancy diversion bushing pipe 2.2, reduce cost, convenient maintenance.
During specific works, water injection tool string is respectively as follows: pressure-setting valve, connected pipes, lower packer, throwing two points of water distribution plugs, oil pipe, upper packer, oil pipe, tubing hangers from bottom to top.
Being controlled overall injection rate by ground, it is internal that water enters core pipe 1 by oil pipe from the pod apertures 1.2 on the top of core pipe 1, enters top water filling port from the first apopore 1.4 through water injection well choke 2.3；Another part through the throttle orifice in the middle of hollow piston 1.6, through the reducer of spring 1.8, hollow piston 1.6 and the second apopore 1.7 composition along guiding gutter constant current to bottom water filling port, flows out from bottom water filling port.Making in the injecting process, only upper packer is to the sleeve pipe pressure-bearing between lower packer, and, the inside and outside differential pressure of this section of sleeve pipe is less；Avoid the casing section pressure-bearing that big section inside and outside differential pressure is bigger.So, use in the present embodiment one two points of water distribution plugs of throwing can effectively extend the life-span of sleeve pipe.
Owing to the reducer of water distribution plug bottom has constant current effect, be not stressed poor impact.When injection rate strengthens, hydraulic pressure strengthens, under the throttling action of hollow piston 1.6 endoporus, hollow piston 1.6 overcomes spring 1.8 resistance descending, continues supercharging, and hollow piston 1.6 amount of moving down strengthens further, until blocking the outs open of the second apopore 1.7, improve the resistance of the second apopore 1.7, make flow diminish, hollow piston 1.6 is the most up；The position of hollow piston 1.6, with change in pressure, keeps flow trim；The flow making lower layer position is controlled in a range of flow, plays constant current effect.Other the water injected all is injected into upper layer position by water injection well choke.
Above-mentioned example be only intended to illustrate this utility model, in addition, the most multiple different embodiment, and these embodiments be all those skilled in the art after comprehension this utility model thought it is also envisioned that therefore, will not enumerate at this.
Claims (7)
1. throwing two points of water distribution plugs for one kind one, it is characterised in that include core pipe (1) and packing pipe (2), it is internal that described core pipe (1) is set in described packing pipe (2)；The top of core pipe (1) is provided with pod apertures (1.2), and bottom tube wall is provided with the first apopore (1.4) and the second apopore (1.7)；Described packing pipe (2) is outside is provided with the sealing ring (2.4) adaptive with sleeve pipe, on packing pipe (2) outer wall, the upper and lower of described sealing ring (2.4) is respectively arranged with top water filling port and bottom water filling port (2.6)；Described first apopore (1.4) and described second apopore (1.7) are adaptive with described top water filling port and water filling port (2.6) position, described bottom respectively.
The most as claimed in claim 1 one throws two points of water distribution plugs, it is characterised in that described first apopore (1.4) and described second apopore (1.7) are provided with reducer.
The most as claimed in claim 2 one throws two points of water distribution plugs, it is characterised in that the reducer of described first apopore (1.4) is water injection well choke (2.3).
The most as claimed in claim 2 one throws two points of water distribution plugs, it is characterised in that the reducer of described second apopore (1.7) is made up of spring (1.8) and hollow piston (1.6)；During variation in water pressure, described hollow piston (1.6) moves up and down the opening changing the second apopore (1.7).
The most as claimed in claim 1 one throws two points of water distribution plugs, it is characterised in that described packing pipe (2) includes that top connection (2.1) and packing portion, described sealing ring (2.4) are arranged on the outer wall in described packing portion.
The most as claimed in claim 1 one throws two points of water distribution plugs, it is characterized in that, being arranged with packing bushing pipe (2.5) in described packing pipe (2), described sealing ring (2.4) is arranged on the outer wall of described packing bushing pipe (2.5).
The most as claimed in claim 1 one throws two points of water distribution plugs, it is characterized in that, being provided with water conservancy diversion bushing pipe (2.2) in described packing pipe (2), described water conservancy diversion bushing pipe (2.2) sidewall is provided with the guiding gutter connecting described first apopore (1.4) and described top water filling port and connecting described second apopore (1.7) and described bottom water filling port (2.6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620510001.5U CN205778783U (en) | 2016-05-31 | 2016-05-31 | A kind of one throws two points of water distribution plugs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620510001.5U CN205778783U (en) | 2016-05-31 | 2016-05-31 | A kind of one throws two points of water distribution plugs |
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| Publication Number | Publication Date |
|---|---|
| CN205778783U true CN205778783U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620510001.5U Active CN205778783U (en) | 2016-05-31 | 2016-05-31 | A kind of one throws two points of water distribution plugs |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930524A (en) * | 2017-05-25 | 2018-12-04 | 中国石油天然气股份有限公司 | Piston, stratum leaking stoppage pipe column and stratum leaking stoppage process |
-
2016
- 2016-05-31 CN CN201620510001.5U patent/CN205778783U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930524A (en) * | 2017-05-25 | 2018-12-04 | 中国石油天然气股份有限公司 | Piston, stratum leaking stoppage pipe column and stratum leaking stoppage process |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |