CN201053309Y - Down-hole filter for water filling well - Google Patents
Down-hole filter for water filling well Download PDFInfo
- Publication number
- CN201053309Y CN201053309Y CNU2007200246454U CN200720024645U CN201053309Y CN 201053309 Y CN201053309 Y CN 201053309Y CN U2007200246454 U CNU2007200246454 U CN U2007200246454U CN 200720024645 U CN200720024645 U CN 200720024645U CN 201053309 Y CN201053309 Y CN 201053309Y
- Authority
- CN
- China
- Prior art keywords
- filter
- pipe
- filter pipe
- water injection
- upper joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
An underground filter for water injection wells consists of an upper joint, an outer pipe and a filter pipe, wherein, the outer pipe is connected below the upper joint; the filter pipe is placed inside the upper joint and the outer pipe; the filter pipe is hung in the upper joint; a filter seam is arranged on the filter pipe; a choke plug is arranged below the filter pipe. The underground filter for water injection wells is arranged below a wellhead; injected water flows out from the filter pipe via the filter seam into a water injection pipe below the outer pipe, which leads sundries and scale to stay inside the filter pipe without entering water injection tools and strata, so as to eliminate the influence of sundries and scale to water injection and ensure the virtuous circle of oilfield injection-production systems.
Description
One, technical field
The utility model belongs to the instrument of used for water injection wells in oil fields, particularly a kind of water injection well down-hole strainer.
Two, background technology
In oil extraction process, stratum energy descends, output reduces, in order to continue to keep high, need inject water up to standard to the stratum, to keep stratum energy, improve oil well output, carry through the processing of many containers and pipeline owing to inject water, and the variation of water temperature, cause to inject in the water and carried some foreign material, incrustation scale, these foreign material, incrustation scale cause that water filling is undesired, destroy the underground water-injection instrument, stop up the stratum, not only do not reach the purpose of water filling, also can make the oil field injection and extraction system vicious circle, have a strong impact on field produces.
Three, summary of the invention
The purpose of this utility model provides a kind of water injection well down-hole strainer, is installed under the well head, and foreign material, incrustation scale are not entered in water filling instrument and the stratum, eliminates the influence to water filling of foreign material, incrustation scale, makes the oil field injection and extraction system benign cycle.
The purpose of this utility model is achieved in that by top connection, outer tube, filter pipe to be formed, and outer tube is connected under the top connection, and filter pipe is put into top connection, outer tube, and filter pipe is suspended in the top connection, and filter pipe is provided with the filter seam.
The beneficial effects of the utility model are: can stop that foreign material, incrustation scale enter in the water injection well, eliminate the influence to water filling of foreign material, incrustation scale, make the oil field injection and extraction system benign cycle.
Four, description of drawings
Accompanying drawing is the assembling drawing of the utility model embodiment.
Five, the specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
As shown in the figure, form by top connection 1, outer tube 2, filter pipe 3, plug 4.Outer tube 2 is connected under the top connection 1, and filter pipe 3 is put into top connection 1, outer tube 2, and filter pipe 3 is suspended on 1 li of top connection, and filter pipe 3 is provided with the filter seam.Plug 4 is installed under the filter pipe 3.This water injection well down-hole strainer is installed under the well head, injecting water flows out through the filter seam from filter pipe 3, in the water injection pipe to the outer tube 2, foreign material, incrustation scale are rested in the filter pipe 3, do not enter in water filling instrument and the stratum, eliminate the influence of foreign material, incrustation scale, make the oil field injection and extraction system benign cycle water filling.Filter pipe 3 can take out removes foreign material, incrustation scale.
Claims (2)
1. water injection well down-hole strainer, form by top connection (1), outer tube (2), filter pipe (3), it is characterized in that: outer tube (2) is connected under the top connection (1), filter pipe (3) is put into top connection (1), outer tube (2), filter pipe (3) is suspended on top connection (1) lining, and filter pipe (3) is provided with the filter seam.
2. water injection well according to claim 1 down-hole strainer is characterized in that: plug (4) is installed under the filter pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200246454U CN201053309Y (en) | 2007-06-27 | 2007-06-27 | Down-hole filter for water filling well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200246454U CN201053309Y (en) | 2007-06-27 | 2007-06-27 | Down-hole filter for water filling well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053309Y true CN201053309Y (en) | 2008-04-30 |
Family
ID=39392973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200246454U Expired - Fee Related CN201053309Y (en) | 2007-06-27 | 2007-06-27 | Down-hole filter for water filling well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053309Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018817A (en) * | 2014-06-12 | 2014-09-03 | 山东科瑞石油工程技术研究院 | Underground water filter capable of being thrown and fished |
| CN104653138A (en) * | 2015-01-30 | 2015-05-27 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Dual-drum type gas well ground ball capturing device |
| US9677361B2 (en) | 2014-03-24 | 2017-06-13 | James Patterson | Drill pipe screens |
| CN111502608A (en) * | 2019-01-30 | 2020-08-07 | 中国石油天然气股份有限公司 | Preset underground filter and water filtering method |
| CN111852435A (en) * | 2020-07-10 | 2020-10-30 | 西安石油大学 | Sandstone reservoir engineering well pattern structure |
-
2007
- 2007-06-27 CN CNU2007200246454U patent/CN201053309Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9677361B2 (en) | 2014-03-24 | 2017-06-13 | James Patterson | Drill pipe screens |
| CN104018817A (en) * | 2014-06-12 | 2014-09-03 | 山东科瑞石油工程技术研究院 | Underground water filter capable of being thrown and fished |
| CN104653138A (en) * | 2015-01-30 | 2015-05-27 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Dual-drum type gas well ground ball capturing device |
| CN111502608A (en) * | 2019-01-30 | 2020-08-07 | 中国石油天然气股份有限公司 | Preset underground filter and water filtering method |
| CN111502608B (en) * | 2019-01-30 | 2021-11-30 | 中国石油天然气股份有限公司 | Preset underground filter and water filtering method |
| CN111852435A (en) * | 2020-07-10 | 2020-10-30 | 西安石油大学 | Sandstone reservoir engineering well pattern structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 Termination date: 20100627 |