CN204093171U - A kind of wellhead of water injection well filter - Google Patents
A kind of wellhead of water injection well filter Download PDFInfo
- Publication number
- CN204093171U CN204093171U CN201420535481.1U CN201420535481U CN204093171U CN 204093171 U CN204093171 U CN 204093171U CN 201420535481 U CN201420535481 U CN 201420535481U CN 204093171 U CN204093171 U CN 204093171U
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- China
- Prior art keywords
- water
- wellhead
- cylindrical shell
- injection well
- water injection
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- Expired - Fee Related
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Abstract
The utility model is a kind of wellhead of water injection well filter, is mainly used in the well head of water injection well, filters, improve injection water quality, handled easily to injection water.This filter comprises filtrate, cylindrical shell is provided with water inlet and delivery port, be arranged in parallel into water coarse strainer and water outlet holder net in cylindrical shell, and filtrate is filled in between water coarse strainer and water outlet holder net, the two ends of cylindrical shell are provided with drive end bearing bracket and rear end cap, be also provided with dress get ring in the rear end of cylindrical shell.This device is arranged in well-flushing valve, utilizes well-flushing valve as shell body, safe and reliable.Without the need to special back purge system, backwash operation is simple, and backwash effect is good, the long service life of filtrate.Effectively can improve injection water quality, there is significant result of use.
Description
Technical field
The utility model relates to the well head filter that petroleum industry injects water, and particularly a kind of wellhead of water injection well filter, is mainly used in the well head of water injection well, filters, improve injection water quality, handled easily to injection water.
Background technology
Along with oil field development enters the middle and later periods, water filling work is more and more important, also more and more stricter to the requirement of injection water quality, owing to being subject to processing technique, impact along factors such as journey pollutions, injection water quality is poor, easily blocking water nozzle and stratum, comparatively major injury is caused to pit shaft and stratum, cause water absorbing capacity be deteriorated or do not absorb water, need to drop into substantial contribution and administer, have a strong impact on Development Response of Oilfield.Existing wellhead of water injection well filter bulky, manufacturing cost is high, needs firm thick and heavy shell, and because water injection pressure is higher, existing wellhead of water injection well filter also exists certain potential safety hazard, its back purge system complex structure, and backwash operation bothers.Due to complex structure, the reason backwash effects such as filter element filtering area is little are poor, and again because backwash effect is poor, the service life of filtrate is short.Wellhead of water injection well filter urgently improves.
Summary of the invention
The purpose of this utility model is to provide a kind of wellhead of water injection well filter, reduces the volume of device, reduces its manufacturing cost, do not need special shell, without the need to special back purge system.Simplify backwashing procedures, increase work efficiency and backwash effect, extend the service life of filtrate.
The utility model is achieved in that a kind of wellhead of water injection well filter comprises filtrate, cylindrical shell is provided with water inlet and delivery port, be arranged in parallel into water coarse strainer and water outlet holder net in cylindrical shell, filtrate is filled in between water coarse strainer and water outlet holder net, the two ends of cylindrical shell are provided with drive end bearing bracket and rear end cap, be also provided with dress get ring in the rear end of cylindrical shell.
Compared with prior art, the beneficial effects of the utility model are: the water inlet coarse strainer of this device is not closed to the end space between cylinder inboard wall, the place that do not close of its drive end bearing bracket is made to become water inlet, the place that do not close of rear end cap becomes backwash delivery port, passage between water inlet coarse strainer and cylinder inboard wall becomes impurity output channel, preliminary filtering function can be played to injection water quality, mainly filter the mechanical admixture that welding slag, stone, dirty sheet etc. are larger.Due to the inclination that drive end bearing bracket is about 30 degree, the impurity of front end can be made naturally to import the backwash water outlet of rear end by impurity output channel, improve backwash effect.This device loads in well-flushing valve by specific purpose tool, without the need to special housing, and make delivery port corresponding with the vertical passageway of the little four-way of wellhead of water injection well, volume is little, lightweight, not only increase filter area, improve filter effect, and significantly reduce manufacturing cost, guarantee to filter the waterflooding requirement that the water yield meets water injection well.Below the little four-way of wellhead of water injection well, 4 points of pressure measurement valves and sample cock are installed, pressure and water quality situation after filtering can be observed in time.When needs carry out backwash operation, close water injection well and come penstock and total valve, open water injection well well-flushing valve, suitably open penstock, just the mechanical admixtures such as welding slag can be discharged, can rinse filtrate simultaneously, and the greasy dirt rinsed, impurity are discharged, recover the filter capacity of filtrate.After backwash effluent quality obviously improves, both can pour normal water filling flow process into and this device had been put into operation, easy to operate.This device is arranged in well-flushing valve, utilizes well-flushing valve as shell body, safe and reliable.Without the need to special back purge system, backwash operation is simple, and backwash effect is good, the long service life of filtrate.Effectively can improve injection water quality, there is significant result of use.
Accompanying drawing explanation
Fig. 1 is a left side half figure of the utility model cut-away view.
Fig. 2 is the right side half figure of the utility model cut-away view.
Fig. 3 is overall structure figure of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing in detail the utility model is described in detail, see Fig. 1, Fig. 2 and Fig. 3, a kind of wellhead of water injection well filter comprises filtrate, cylindrical shell 2 is provided with water inlet 7 and delivery port 6, be arranged in parallel into water coarse strainer 3 and water outlet holder net 4 in cylindrical shell 2, filtrate is filled in between water coarse strainer 3 and water outlet holder net 4, and the two ends of cylindrical shell 2 are provided with drive end bearing bracket 8 and rear end cap 9, be also provided with dress get ring 11 in the rear end of cylindrical shell 2.The front end of cylindrical shell 2 is tapered end, between the angle between drive end bearing bracket 8 and cylindrical shell 2 is spent at 28 degree-32, and rear end cap 9 and cylindrical shell 2 at right angle setting.Drive end bearing bracket 8 and rear end cap 9 all enclose the end space comprised into water coarse strainer 3, and the end space of intaking between coarse strainer 3 to cylindrical shell 2 inwall is not closed, the place that do not close of its drive end bearing bracket 8 is made to become water inlet 7, the place that do not close of rear end cap 9 becomes backwash delivery port 12, and the passage between water inlet coarse strainer 3 and cylindrical shell 2 inwall becomes impurity output channel.Rear end cap 9 is fixed on the rearward end of cylindrical shell 2 by screw 10.The outer wall of cylindrical shell 2 is provided with front seal groove 5 and rear seal groove 1, in front seal groove 5 and rear seal groove 1, sealing ring is housed
,prevent injecting water and enter pit shaft by the outside of cylindrical shell 2 and the interconnection gap of the little four-way of well head.The filter bores diameter of water inlet coarse strainer 3 is set between 1.5mm-2.5mm, and the filter bores diameter of water outlet holder net 4 is set between 2.5mm-3.5mm.The middle part that delivery port 6 is located at cylindrical shell 2 below water outlet holder net 4 is corresponding with the vertical passageway of the little four-way of wellhead of water injection well.
When installing and using, close water injection well and come penstock and total valve, open water injection well well-flushing valve, this device is inwardly pushed by well-flushing valve, when rear end is concordant with well-flushing valve, specific purpose tool being inserted in dress gets in ring 11, is continued to push by this device with specific purpose tool, until delivery port 6 is corresponding with the vertical passageway of the little four-way of wellhead of water injection well.Now, it is corresponding that water inlet 7 and wellhead of water injection well carry out penstock, and backwash delivery port 12 is corresponding with wellhead of water injection well well-flushing valve.Close well-flushing valve, open water injection well and come penstock and total valve, both this device can be put into operation.Due to the drive end bearing bracket 8 that front end is inclination about 30 degree, larger mechanical admixture can be guided the backwash delivery port 12 entering rear end by impurity output channel
,water is entered into water coarse strainer 3 smoothly by impurity output channel.After media filtration, after filter, water enters delivery port 6 smoothly, enters water injection well pit shaft smoothly by delivery port 6.Above structure increases filter area, increases the filtration water yield, ensure that and filters the waterflooding requirement that the water yield can meet water injection well, make the filtrate of diverse location give full play to filtration, improve filter effect.
Claims (7)
1. a wellhead of water injection well filter, comprise filtrate, it is characterized in that, cylindrical shell is provided with water inlet and delivery port, be arranged in parallel into water coarse strainer and water outlet holder net in cylindrical shell, filtrate is filled in between water coarse strainer and water outlet holder net, and the two ends of cylindrical shell are provided with drive end bearing bracket and rear end cap, is also provided with dress gets ring in the rear end of cylindrical shell.
2. a kind of wellhead of water injection well filter according to claim 1, is characterized in that, the front end of described cylindrical shell is tapered end, between the angle between drive end bearing bracket and cylindrical shell is spent at 28 degree-32, and rear end cap and cylindrical shell at right angle setting.
3. a kind of wellhead of water injection well filter according to claim 1, it is characterized in that, described drive end bearing bracket and rear end cap all enclose the end space comprised into water coarse strainer, and the end space of intaking between coarse strainer to cylinder inboard wall is not closed, the place that do not close of drive end bearing bracket is made to become water inlet, the place that do not close of rear end cap becomes backwash delivery port, and the passage between water inlet coarse strainer and cylinder inboard wall becomes impurity output channel.
4. a kind of wellhead of water injection well filter according to claim 1 or 2 or 3, it is characterized in that, described rear end cap is fixed by screws in the rearward end of cylindrical shell.
5. a kind of wellhead of water injection well filter according to claim 4, is characterized in that, the outer wall of described cylindrical shell is provided with front seal groove and rear seal groove, in front seal groove and rear seal groove, sealing ring is housed.
6. a kind of wellhead of water injection well filter according to claim 1, is characterized in that, the filter bores diameter of described water inlet coarse strainer is set between 1.5mm-2.5mm, and the filter bores diameter of water outlet holder net is set between 2.5mm-3.5mm.
7. a kind of wellhead of water injection well filter according to claim 3, it is characterized in that, the middle part that described delivery port is located at water outlet holder square tube off the net body is corresponding with the vertical passageway of the little four-way of wellhead of water injection well, it is corresponding that water inlet and wellhead of water injection well carry out penstock, and backwash delivery port is corresponding with wellhead of water injection well well-flushing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420535481.1U CN204093171U (en) | 2014-09-18 | 2014-09-18 | A kind of wellhead of water injection well filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420535481.1U CN204093171U (en) | 2014-09-18 | 2014-09-18 | A kind of wellhead of water injection well filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204093171U true CN204093171U (en) | 2015-01-14 |
Family
ID=52261642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420535481.1U Expired - Fee Related CN204093171U (en) | 2014-09-18 | 2014-09-18 | A kind of wellhead of water injection well filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204093171U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693504A (en) * | 2016-12-14 | 2017-05-24 | 中国石油天然气股份有限公司 | Underground filter capable of being thrown-in and pulled for water injection well |
| CN107973350A (en) * | 2016-10-25 | 2018-05-01 | 中国石油化工股份有限公司 | Wellhead of water injection well water treatment method |
| CN113417603A (en) * | 2021-07-22 | 2021-09-21 | 齐冬雪 | Watering combination wellhead assembly convenient to maintain |
-
2014
- 2014-09-18 CN CN201420535481.1U patent/CN204093171U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107973350A (en) * | 2016-10-25 | 2018-05-01 | 中国石油化工股份有限公司 | Wellhead of water injection well water treatment method |
| CN106693504A (en) * | 2016-12-14 | 2017-05-24 | 中国石油天然气股份有限公司 | Underground filter capable of being thrown-in and pulled for water injection well |
| CN113417603A (en) * | 2021-07-22 | 2021-09-21 | 齐冬雪 | Watering combination wellhead assembly convenient to maintain |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20150918 |
|
| EXPY | Termination of patent right or utility model |