CN2544099Y - High-strength adjustable double-layer sand-proof sieve pipe for oil well - Google Patents
High-strength adjustable double-layer sand-proof sieve pipe for oil well Download PDFInfo
- Publication number
- CN2544099Y CN2544099Y CN 02231411 CN02231411U CN2544099Y CN 2544099 Y CN2544099 Y CN 2544099Y CN 02231411 CN02231411 CN 02231411 CN 02231411 U CN02231411 U CN 02231411U CN 2544099 Y CN2544099 Y CN 2544099Y
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- China
- Prior art keywords
- pipe
- bolt
- sand
- oil well
- inner pipe
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- Expired - Fee Related
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Abstract
A double-layer adjustable sand control screen pipe with high intensity pertains to sand prevention equipment in oil wells for the oil exploiting engineering by overcoming the deficiency of prior art. The screen pipe essentially consists of a segment hoop, an external pipe, a regulating nut, an inner pipe, a compressing spring and other components that are connected together. The segment hoop and the external pipe are connected by a bolt; the inner pipe is connected with the segment hoop by a bolt; the regulating nut and the inner pipe are connected by a bolt; the compressing spring pocket on the inner pipe is limited by the step surface of the rear end of the inner pipe and compacted by the regulating nut. The application of the device can well prevent the phenomenon of holddown caused by the sand production and guarantee the normal production of sand production wells.
Description
One, technical field: the invention belongs to the device of oil exploitation engineering oil well production sand control, especially oil well high strength adjustable double-deck sand control screen.
Two, background technology: at present, the used in process of production anti-sandpipe in oil field is to wrap one deck 80-120 order steel mesh on inner pipe, and steel mesh intensity is low, is corroded easily, easily adsorbs sand grains, causes the steel mesh junk, loses the sand control effect, and the life-span is short, influences oil well production.
Three, the purpose of this utility model provides oil well high strength adjustable double-deck sand control screen, can reach stepless adjustment sand control gap according to the size of the particle that shakes out, be used to prevent and treat the above sand grains of 0.1mm, overcome the shortcoming of the interior effective steel mesh of present common concentric screen or the low sand control ability of intensity that copper mesh packs appearance.It mainly is formed by connecting by parts such as joint hoop, outer tube, adjusting nut, interior pipe, compression springs, and the joint hoop is connected by bolt with outer tube; Interior pipe is connected by bolt with the joint hoop; Adjusting nut is connected by bolt with interior pipe; Compress spring housing on inner pipe, and spacing by interior pipe afterbody step surface, compress by adjusting nut.
During work, oil well high strength adjustable double-deck sand control screen is connected under the oil pump on the tail pipe, oil and sand are introduced into the centre of outer tube and interior pipe, and sand is dropped in sand sediment pipe outside by spring catch then, and the oil that does not contain sand enters in the oil pipe by spring and interior pipe smoothly.
Owing to adopt such scheme, can prevent the holddown phenomenon that sand production causes preferably, guarantee the ordinary production of sand well.
Four, description of drawings: accompanying drawing is the structural representation of oil well high strength adjustable double-deck sand control screen.
Among the figure 1, joint hoop 2, outer tube 3, adjusting nut 4, interior pipe 5, compression spring
Five, the specific embodiment: in above accompanying drawing, joint hoop 1 and outer tube 2 are connected by bolt; In pipe 4 and joint bind round 1 and be connected by bolt; Adjusting nut 3 and interior pipe 4 are connected by bolt; The compression spring 5 be enclosed within the pipe 4 on and spacing by interior pipe 4 afterbody step surfaces, compress by adjusting nut 3.
Claims (2)
1, oil well high strength adjustable double-deck sand control screen is formed by connecting by joint hoop (1), outer tube (2), adjusting nut (3), interior pipe (4) and compression spring parts such as (5), and it is characterized in that: joint hoop (1) is connected by bolt with outer tube (2); Interior pipe (4) is connected by bolt with joint hoop (1); Adjusting nut (3) is connected by bolt with interior pipe (4).
2, oil well high strength adjustable double-deck sand control screen according to claim 1 is characterized in that: it is last and spacing by interior pipe (4) afterbody step surface that compression spring (5) is enclosed within interior pipe (4), compressed by adjusting nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02231411 CN2544099Y (en) | 2002-04-24 | 2002-04-24 | High-strength adjustable double-layer sand-proof sieve pipe for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02231411 CN2544099Y (en) | 2002-04-24 | 2002-04-24 | High-strength adjustable double-layer sand-proof sieve pipe for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2544099Y true CN2544099Y (en) | 2003-04-09 |
Family
ID=33707134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02231411 Expired - Fee Related CN2544099Y (en) | 2002-04-24 | 2002-04-24 | High-strength adjustable double-layer sand-proof sieve pipe for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2544099Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1932235B (en) * | 2006-09-30 | 2010-04-14 | 张希茂 | Oil collecting casing connecting device |
| CN102228900A (en) * | 2011-05-18 | 2011-11-02 | 华北电力大学 | In situ integrated restoring system and method of petroleum polluted soil |
| CN105781499A (en) * | 2016-04-12 | 2016-07-20 | 青岛海洋地质研究所 | Method for multistage sand prevention of ocean natural gas hydrate depressurization production |
| CN110439478A (en) * | 2019-07-18 | 2019-11-12 | 中国石油天然气集团有限公司 | Inner layer sleeve is the pipe in pipe casing being threadedly coupled and its assembly method |
-
2002
- 2002-04-24 CN CN 02231411 patent/CN2544099Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1932235B (en) * | 2006-09-30 | 2010-04-14 | 张希茂 | Oil collecting casing connecting device |
| CN102228900A (en) * | 2011-05-18 | 2011-11-02 | 华北电力大学 | In situ integrated restoring system and method of petroleum polluted soil |
| CN105781499A (en) * | 2016-04-12 | 2016-07-20 | 青岛海洋地质研究所 | Method for multistage sand prevention of ocean natural gas hydrate depressurization production |
| CN105781499B (en) * | 2016-04-12 | 2018-05-04 | 青岛海洋地质研究所 | A kind of multistage anti-sand method of ocean gas hydrate decompression exploitation |
| CN110439478A (en) * | 2019-07-18 | 2019-11-12 | 中国石油天然气集团有限公司 | Inner layer sleeve is the pipe in pipe casing being threadedly coupled and its assembly method |
| CN110439478B (en) * | 2019-07-18 | 2022-03-29 | 中国石油天然气集团有限公司 | Double-layer combined sleeve structure with inner-layer sleeve in threaded connection and assembling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |