CN200999607Y - Long through type sand preventing screen pipe - Google Patents
Long through type sand preventing screen pipe Download PDFInfo
- Publication number
- CN200999607Y CN200999607Y CNU2007200102903U CN200720010290U CN200999607Y CN 200999607 Y CN200999607 Y CN 200999607Y CN U2007200102903 U CNU2007200102903 U CN U2007200102903U CN 200720010290 U CN200720010290 U CN 200720010290U CN 200999607 Y CN200999607 Y CN 200999607Y
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- CN
- China
- Prior art keywords
- filter screen
- positioning sleeve
- central tube
- oil
- sand
- 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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Abstract
A long-passing sand control screen is provided. A plurality of round holes are evenly distributed on a central pipe; a filter screen is packed on the pipe wall, which is externally suited with a jacket; a groove evenly in vertical and horizontal is arranged on the central pipe body, which is communicated with the round holes on the pipe wall; the filter screen is positioned with a positioning sleeve respectively at two ends, whose thin wall cuneiform end is inserted between the jacket and the filter screen and extrudes firmly the filter screen on the central pipe wall; the jacket, the positioning sleeve and the central pipe are welded together. By opening the round holes evenly and the grooves vertically and horizontally on the central pipe body, the utility model enables the filter screen not only wards off the stratum sand of the certain granularity, but also uneasy being blocked, thus keeping the oil flowing smoothly; the utility model generally adopts the double layers filter screen, thus achieving a more remarkable sand screening effect. The utility model has the advantages of simple structure, material saving, low cost, economy and durability and remarkable oil and sand separating effect, which is suitable for using at oil field.
Description
Technical field
The utility model relates to a kind of equipment of oil field oil recovery usefulness, specifically relates to the oil-sand eliminator that a kind of recover petroleum, natural gas are used.
Background technology
The oil field tap natural gas, oil process in, must strictly solve the problem that oil-sand separates for oil well, gas well, if can not address this problem, sand enters oil well or gas well with oil, can cause the heavy wear of pumping equipment, in addition, a large amount of sands are sink to the shaft bottom, can bring difficulty or cause oil well to stop production to exploitation after how amassing, even scrap.Known oil-sand eliminator is to be drilled with a plurality of filter bores on seamless steel pipe, with the stainless steel wire compacting, sticks with glue then, becomes in the filter bores of putting behind the piece to the seamless steel pipe wall.Because oil well has certain temperature and certain pressure in the mined bed, this bonding glue is melted, and the filtering material that stainless steel wire is suppressed is extruded the filter bores on the stainless steel tube tube wall.Another improved oil-sand eliminator is that the filtering bodies that stainless steel is made is contained in the housing that is made of upper and lower cover with holes, and then in the filter bores on the above-mentioned seamless steel pipe of packing into, loam cake and the inwall solid welding of oil strain hole.Because being afraid of oil-sand eliminator filtering bodies in oil recovery, the gas production process is most stopped up by sand.And this oil-sand eliminator is prone to sand obstruction accident, must carry out blowback, gas injection in case the obstruction accident occurs, go out to stop up clearly, so not only influence the exploitation of oil, gas, and will increase the strong change of oil-sand eliminator material, thereby increase the cost of oil-sand eliminator.
Summary of the invention
Purpose of the present invention is the problems referred to above that exist at known oil-sand eliminator, and a kind of oil-sand good separating effect is provided, and is difficult for stopping up, and oil can smoothness enter pit shaft unimpededly, and robust oil-sand eliminator, i.e. long-pass type sand control screen.
The technical scheme that adopts is:
The long-pass type sand control screen comprises central tube, positioning sleeve, sheath, filter screen, and the two ends of described central tube are equipped with upper and lower joint, evenly offer a plurality of circular holes on the body of central tube, packing has filter screen on the tube wall of central tube, and at outside suit one sheath of filter screen, its design feature is:
Be laid with the groove of many vertical, horizontal on the body of described central tube, the groove of vertical, horizontal is linked up mutually, groove and the corresponding connection of circular hole on the central tube body.
The two ends of above-mentioned filter screen are equiped with positioning sleeve respectively, the thin-walled tapered end of positioning sleeve is inserted between sheath and the filter screen, and filter screen is squeezed in securely on the tube wall of central tube, on the correspondence position of sheath and positioning sleeve, being provided with welding hole, sheath, positioning sleeve and central tube are welded on one.
Above-mentioned filter screen is arranged to individual layer or bilayer.
The utility model is evenly distributed with groove again in length and breadth owing to the uniform circular hole of existing laying on center tubes on body, the circular hole on groove and the body is communicated with each other, thereby make filter screen can block the reservoir sand of certain particle size, be difficult for blockedly again, make oil smooth logical without hindrance, usually adopt double-layer leaching net, make the filter sand effect more remarkable, the utility model is simple in structure, and materials are few, cost is low, economy and durability, it is effective that oil-sand separates, and use in suitable oil field.It should be noted that under the prerequisite that does not change general idea and principle, can also make some changes or distortion to the utility model, this belongs to the scope of the utility model protection equally.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Fig. 2 is the utility model center tube structure schematic diagram.
Fig. 3 is that the A-A of Fig. 2 is to sectional view.
Fig. 4 is that the B-B of Fig. 2 is to sectional view.
Fig. 5 is the utility model positioning sleeve structural representation.
Fig. 6 is that the C-C of Fig. 5 is to sectional view.
The specific embodiment
Embodiment
The long-pass type sand control screen, comprise central tube 2, positioning sleeve 3, sheath 4, filter screen 5, install joint 1 and lower contact 6 respectively at the two ends of central tube 2, on the body of central tube 2, evenly lay a plurality of circular holes 7, and offer many equally distributed grooves 8 of vertical, horizontal, vertical, horizontal groove 8 is communicated with each other, groove 8 and circular hole 7 corresponding being interconnected.The filter screen 5 of the useful stainless steel wire braiding of packing on the body of central tube 2, outside suit one sheath 4 of filter screen 5, two ends at filter screen 5 are equiped with positioning sleeve 3 respectively, thin-walled one end of positioning sleeve 3 is a wedge shape, the thin-walled tapered end of positioning sleeve 3 is inserted between sheath 4 and the filter screen 5, and filter screen 5 is squeezed in securely on the tube wall of central tube 2, on the correspondence position of sheath 4 and positioning sleeve 3, being provided with welding hole, sheath 4, positioning sleeve 3 and central tube 2 are integrally welded.
In concrete practicality, situations such as the oil in comprehensive oil field, temperature, pressure, geology are preferably six groups with the filter screen 5 that uses by the order number, and these six groups of filter screens are respectively:
| Grouping | The order number | Corresponding aperture | Grouping | The order | Corresponding aperture | |
| 1 | 150 | 0.10 | 4 | 80 | 0.18 | |
| 2 | 120 | 0.125 | 5 | 300 | 0.05 | |
| 3 | 90 | 0.16 | 6 | 200 | 0.07 |
Can select suitable filter screen 5 according to the concrete condition in different oil fields in actual use.The utility model also can adopt double-layer leaching net, makes the filter sand effect more remarkable, and the specification of double-layer stainless steel filter screen 5 is still selected according to the concrete characteristics in different oil fields, is 120 orders as upper strata stainless steel filtering net 5, and lower floor then selects 80 orders for use; Upper strata stainless steel filtering net 5 is 300 orders, and it is good that lower floor's stainless steel filtering net 5 is selected 150 orders for use.
Claims (3)
1, long-pass type sand control screen, comprise central tube (2), positioning sleeve (3), sheath (4), filter screen (5), the two ends of described central tube (2) are equipped with upper and lower joint (1), (6), evenly offer a plurality of circular holes (7) on the body of central tube (2), packing has filter screen (5) on the tube wall of central tube (2), install a sheath (4) in the outside of filter screen (5), it is characterized in that:
Be laid with the groove (8) of many vertical, horizontal on the body of described central tube (2), the groove of vertical, horizontal (8) is communicated with each other, the corresponding connection of circular hole (7) on groove (8) and the central tube body.
2, long-pass type sand control screen according to claim 1, it is characterized in that: the two ends of above-mentioned filter screen (5) are equiped with positioning sleeve (3) respectively, the thin-walled tapered end of positioning sleeve (3) is inserted between sheath (4) and the filter screen (5), and filter screen (5) is squeezed on the tube wall of central tube (2), be provided with welding hole on the correspondence position of sheath (4) and positioning sleeve (3), sheath (4), positioning sleeve (3) are welded on one with central tube (2).
3, long-pass type sand control screen according to claim 1 is characterized in that: above-mentioned filter screen (5) is arranged to individual layer or bilayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200102903U CN200999607Y (en) | 2007-01-24 | 2007-01-24 | Long through type sand preventing screen pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200102903U CN200999607Y (en) | 2007-01-24 | 2007-01-24 | Long through type sand preventing screen pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200999607Y true CN200999607Y (en) | 2008-01-02 |
Family
ID=39014014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200102903U Expired - Fee Related CN200999607Y (en) | 2007-01-24 | 2007-01-24 | Long through type sand preventing screen pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200999607Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146783A (en) * | 2011-04-15 | 2011-08-10 | 中国石油大学(华东) | Mouse cage type V-shaped straight wire sieve tube |
| WO2017059664A1 (en) * | 2015-10-09 | 2017-04-13 | 刘洋 | Oil well sand filtering apparatus |
| WO2018049560A1 (en) * | 2016-09-13 | 2018-03-22 | 思达斯易能源技术(集团)有限公司 | Sand control screen for heavy oil thermal recovery |
-
2007
- 2007-01-24 CN CNU2007200102903U patent/CN200999607Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146783A (en) * | 2011-04-15 | 2011-08-10 | 中国石油大学(华东) | Mouse cage type V-shaped straight wire sieve tube |
| CN102146783B (en) * | 2011-04-15 | 2013-10-23 | 中国石油大学(华东) | Mouse cage type V-shaped straight wire sieve tube |
| WO2017059664A1 (en) * | 2015-10-09 | 2017-04-13 | 刘洋 | Oil well sand filtering apparatus |
| WO2018049560A1 (en) * | 2016-09-13 | 2018-03-22 | 思达斯易能源技术(集团)有限公司 | Sand control screen for heavy oil thermal recovery |
| US10767450B2 (en) | 2016-09-13 | 2020-09-08 | Starse Energy And Technology (Group) Co., Ltd | Sand control screen for heavy oil thermal recovery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: CO-PATENTEE TO: WANG GUIZHONG XIE CHUNYI LIU QUN ^ |
|
| CU01 | Correction of utility model patent |
Correction item: Co-patentee Correct: Wang Guizhong|Xie Chunyi|Liu Qun Number: 01 Page: The title page Volume: 24 |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Co-patentee Correct: Wang Guizhong|Xie Chunyi|Liu Qun Number: 01 Volume: 24 |
|
| ERR | Gazette correction |
Free format text: CORRECT: CO-PATENTEE; FROM: NONE ^ TO: WANG GUIZHONG XIE CHUNYI LIU QUN ^ |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080102 Termination date: 20110124 |