CN103291273A - Multi-stage filter for oil wells - Google Patents
Multi-stage filter for oil wells Download PDFInfo
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- CN103291273A CN103291273A CN2013102167495A CN201310216749A CN103291273A CN 103291273 A CN103291273 A CN 103291273A CN 2013102167495 A CN2013102167495 A CN 2013102167495A CN 201310216749 A CN201310216749 A CN 201310216749A CN 103291273 A CN103291273 A CN 103291273A
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- filter
- shell body
- shell
- rotary
- screen pack
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Abstract
The invention discloses a multi-stage filter for oil wells. The multi-stage filter comprises a shell. Two filter tubes are mounted on the outer-side wall face of the shell. A rotary filter ball is mounted inside each filter tube through a rotary shaft. A cover is disposed at the outer end of each filter tube. A mesh type filter strip is added in a cavity between each rotary filter ball and the corresponding cover. A secondary filter screen is horizontally disposed at the center in the shell. A primary filter screen is disposed in a filter cavity above the second filter screen. An oil outlet pipe with a valve is connected to the lower end of the shell. By the various filter structures such as the filter balls, the filter strips and the filter screens, the multi-stage filter is reasonable in structure, convenient, practical, high in filter effect, capable of filtering petroleum in a layered manner, and capable of providing convenience in use.
Description
Technical field
The present invention relates to technical field of petroleum extraction, relate in particular to a kind of oil well multistage filter.
Background technology
At present, the pipe fitting that is applied to industries such as oil, chemical industry, electric power, boats and ships, metallurgy, machinery, weaving, food, building, pharmacy all needs to possess higher intensity, resistance to pressure, corrosion-resistant, resistance to elevated temperatures, therefore, in technical field of petroleum extraction, in order to improve the recovery ratio of crude oil, usually will carry out secondary oil recovery and tertiary oil recovery, screen casing is installed on oil well bottom, is used for a kind of special tubing that the oil that exploitation is come out is separated with the sandstone on stratum.But present Petroleum screen tube structure is too simple, generally at tubing table wall processing strip or poroid screen casing, also some screen casing is to adopt stainless steel wire to twine after punching to make screen casing, and clearly, its filtering function is relatively poor, can't layering filter, can not satisfy industrial requirement; In addition, present screen casing function is too single, can only carry out sieving operation, but can't carry out normal transportation work, can't satisfy people's demand, heat insulation effect is not good enough, not corrosion-resistant, application life short.Therefore, at above aspect, need make rational improvement.
Summary of the invention
But the oil well multistage filter that the purpose of this invention is to provide the strong layered filtration oil of a kind of rational in infrastructure, convenient and practical, filter effect, the service condition that facilitates is to solve many deficiencies of prior art.
Purpose of the present invention is come specific implementation by the following technical programs:
A kind of oil well multistage filter, comprise shell body, be positioned at two filter pipes are installed on the shell body outer side surface, be positioned at each filter pipe inside and by rotating shaft a rotary filter ball be installed, buckle closure is set in each filter pipe outer end and in the chamber of rotary filter ball between buckle closure, sets up the mesh-type filter bag, simultaneously, described shell body inside center position is horizontally disposed with second level screen pack one, the filtration inner chamber that is positioned at screen pack top, the second level is provided with first order screen pack, is positioned at the shell body lower end and connects flowline and configuration valve.
Upper and lower two bottom surfaces of described shell body are installed seal closure respectively, on the described shell body observation port are set.
The beneficial effect of oil well multistage filter of the present invention is: by setting up multiple filtration at filtration inner chamber, outer filter pipe, as filter ball, filter bag, screen pack, but possessed advantages such as the strong layered filtration oil of rational in infrastructure, convenient and practical, filter effect, the service condition that facilitates; During use, by these different filtrations, after oil enters body, can enter filter element along the body surface and flow out again, can make the sandstone in the fluid filter clean; In addition, the mouth place, the upper and lower end of filter pipe can realize the sealing operation to filter pipe, avoids liquid to flow out from filter pipe, makes the bring into normal play function of tubing of body.
Description of drawings
The present invention is described in further detail with embodiment with reference to the accompanying drawings below.
Fig. 1 is the structure chart of the described oil well multistage filter of the embodiment of the invention.
Among the figure: 1, shell body; 2, seal closure; 3, filter pipe; 4, buckle closure; 5, rotary filter ball; 6, mesh-type filter bag; 7, rotating shaft; 8, filter inner chamber; 9, valve; 10, flowline; 11, first order screen pack; 12, second level screen pack; 13, observation port.
The specific embodiment
As shown in Figure 1, the described oil well multistage filter of the embodiment of the invention, comprise shell body 1, seal closure 2 is installed respectively in described shell body 1 upper and lower two bottom surfaces and shell body 1 upper end connects oil inlet pipe, be positioned at and offer two filter pipes 3 on shell body 1 outer side surface, the filter pipe 3 of each is respectively perpendicular to shell body 1 side wall surface; It is inner by rotary filter ball 5 of rotating shaft 7 installations to be positioned at each filter pipe 3, buckle closure 4 is set in each filter pipe 3 outer end and in the cavity of rotary filter ball 5 between buckle closure 4, sets up mesh-type filter bag 6, simultaneously, described shell body 1 inside center position is horizontally disposed with second level screen pack 12 one, the filtration inner chamber 8 that is positioned at second level screen pack 12 tops is provided with first order screen pack 11, and the shell body 1 of each grade screen pack position arranges an observation port 13 respectively; In addition, be positioned at shell body 1 lower end and connect flowline 10 and configuration valve 9.
Claims (3)
1. an oil well multistage filter comprises shell body, it is characterized in that:
Be positioned at two filter pipes are installed on the shell body outer side surface, be positioned at each filter pipe inside and by rotating shaft a rotary filter ball be installed, buckle closure is set in each filter pipe outer end and in the chamber of rotary filter ball between buckle closure, sets up the mesh-type filter bag, simultaneously, described shell body inside center position is horizontally disposed with second level screen pack one, the filtration inner chamber that is positioned at screen pack top, the second level is provided with first order screen pack, is positioned at the shell body lower end and connects flowline and configuration valve.
2. a kind of oil well multistage filter as claimed in claim 1, it is characterized in that: upper and lower two bottom surfaces of described shell body are installed seal closure respectively.
3. a kind of oil well multistage filter as claimed in claim 1 is characterized in that: on the described shell body observation port is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310216749.5A CN103291273B (en) | 2013-06-04 | 2013-06-04 | A kind of oil well multistage filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310216749.5A CN103291273B (en) | 2013-06-04 | 2013-06-04 | A kind of oil well multistage filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103291273A true CN103291273A (en) | 2013-09-11 |
| CN103291273B CN103291273B (en) | 2016-01-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310216749.5A Expired - Fee Related CN103291273B (en) | 2013-06-04 | 2013-06-04 | A kind of oil well multistage filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103291273B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984578A (en) * | 2015-06-17 | 2015-10-21 | 成都高普石油工程技术有限公司 | Auxiliary filtering technology of petroleum sieve tube auxiliary device |
| CN112169463A (en) * | 2020-10-17 | 2021-01-05 | 江西坤灿环保科技股份有限公司 | Environment-friendly waste gas treatment equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560483A (en) * | 1984-05-04 | 1985-12-24 | Warning Theodore J | Process and apparatus for filtration of oil and gas well fluids |
| US20040026313A1 (en) * | 2002-08-09 | 2004-02-12 | Arlon Fischer Todd Kenneth | Multi-micron, multi-zoned mesh, method of making and use thereof |
| CN201391291Y (en) * | 2009-03-24 | 2010-01-27 | 浙江省星炬科技有限公司 | Self-cleaning screen pipe of integral filter |
| CN101737024A (en) * | 2009-12-08 | 2010-06-16 | 安东石油技术（集团）有限公司 | Screen pipe with temporary plugging function |
| CN102373910A (en) * | 2011-09-28 | 2012-03-14 | 大连德成科技有限公司 | Petroleum screen pipe |
| CN203271707U (en) * | 2013-06-04 | 2013-11-06 | 无锡金顶石油管材配件制造有限公司 | Oil well multistage filter |
-
2013
- 2013-06-04 CN CN201310216749.5A patent/CN103291273B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560483A (en) * | 1984-05-04 | 1985-12-24 | Warning Theodore J | Process and apparatus for filtration of oil and gas well fluids |
| US20040026313A1 (en) * | 2002-08-09 | 2004-02-12 | Arlon Fischer Todd Kenneth | Multi-micron, multi-zoned mesh, method of making and use thereof |
| CN201391291Y (en) * | 2009-03-24 | 2010-01-27 | 浙江省星炬科技有限公司 | Self-cleaning screen pipe of integral filter |
| CN101737024A (en) * | 2009-12-08 | 2010-06-16 | 安东石油技术（集团）有限公司 | Screen pipe with temporary plugging function |
| CN102373910A (en) * | 2011-09-28 | 2012-03-14 | 大连德成科技有限公司 | Petroleum screen pipe |
| CN203271707U (en) * | 2013-06-04 | 2013-11-06 | 无锡金顶石油管材配件制造有限公司 | Oil well multistage filter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984578A (en) * | 2015-06-17 | 2015-10-21 | 成都高普石油工程技术有限公司 | Auxiliary filtering technology of petroleum sieve tube auxiliary device |
| CN112169463A (en) * | 2020-10-17 | 2021-01-05 | 江西坤灿环保科技股份有限公司 | Environment-friendly waste gas treatment equipment |
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| Publication number | Publication date |
|---|---|
| CN103291273B (en) | 2016-01-06 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20160604 |