CN200964836Y - Spiral weld filtering tube - Google Patents
Spiral weld filtering tube Download PDFInfo
- Publication number
- CN200964836Y CN200964836Y CN 200620132076 CN200620132076U CN200964836Y CN 200964836 Y CN200964836 Y CN 200964836Y CN 200620132076 CN200620132076 CN 200620132076 CN 200620132076 U CN200620132076 U CN 200620132076U CN 200964836 Y CN200964836 Y CN 200964836Y
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- filter pipe
- filter
- spiral
- pipe
- big
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Abstract
A spiral soldered filter pipe relates to a filter pipe applied to well body control sands (anti-sands, fix-sands collectively) in oil drilling well and deep water drilling well industry. The utility model is characterized in that the filter pipe is a metal pipe made of steel, which is provided with filter holes on the pipe wall; the welding line of the filter pipe is spiral. As the spiral welding line takes the shape of twist, the spiral filter pipe of the utility model overcomes the defects of the straight welding line filter pipe of big roundness error, big axes linear degree error, big deflection, poor rigid; the utility model is easy to assembly in well body control sands constructing field, and has high assembly precision.
Description
Technical field
The spiral welding filter pipe relates to a kind of well body control sand (the general name control sand of sand control, solid sand) used filter pipe of facility that is used for oil drilling, deepwater drilling industry.
Background technology
At present, the chimney filter that oil drilling, deepwater drilling industry well body control sand facility adopt is the straight weld filter pipe, because the manufacturing process and the architectural characteristic of straight weld chimney filter, causes the deviation from circular from of straight weld chimney filter, axis straightness error big, and amount of deflection is big, poor rigidity.Usually the deviation from circular from of straight weld chimney filter is 2～3mm, and axis straightness error is about 10mm/5m.The straight weld chimney filter is a straight bead because of its weld seam.During manufacturing during the straight weld filter pipe, after metal sheet rolled, welds, be straight line on the visual face of cylinder of chimney filter, usually can the internal stress skewness, cause the easy bending distortion of chimney filter, the chimney filter dimensional uniformity is poor.Make that site assembly, the butt welding connection technology difficulty of the construction of control sand are big, assembling deviation is big, and work efficiency is low.And the straight weld chimney filter is because of to the plate width requirement, and the difficulty of control punching precision is big.And then make the deviation from circular from of chimney filter, axis straightness error big, and amount of deflection is big, and poor rigidity influences its processing characteristics, functional performance.The straight weld filter pipe technological deficiency that existing straight weld filter pipe causes because of its manufacturing process and architectural characteristic cause the construction of well body control sand site assembly, butt welding connection technology difficulty is big, assembly precision is low, time-consuming, technical barrier that work efficiency is low.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiency that above-mentioned prior art exists, and provides a kind of deviation from circular from, axis straightness error little, and amount of deflection is little, and rigidity is big, is easy to the high spiral welding filter pipe of site assembly and assembly precision.
The purpose of this utility model is achieved through the following technical solutions.
The spiral welding filter pipe is characterized in that this filter pipe is the metal tube that has the steel of filter bores on the tube wall, and the weld seam of its filter pipe is a helical form.
Spiral welding filter pipe of the present utility model is characterized in that having filter bores on this filter pipe tube wall is square groove.
Spiral welding filter pipe of the present utility model is characterized in that having filter bores on this filter pipe tube wall is circular hole.
Spiral welding filter pipe of the present utility model is characterized in that having filter bores on this filter pipe tube wall is the bridge-type pass.
When filter pipe of the present utility model is made, be, adopt the segmentation of spiral bushing machine to roll into tubulose again the metal band-shaped sheet material of interspersed punching press filter bores; Make after the slit welding with joint again.
Spiral welding filter pipe of the present utility model because its weld seam shape in the shape of a spiral, has overcome straight weld filter pipe deviation from circular from, axis straightness error is big, and amount of deflection is big, the shortcoming of poor rigidity; Be easy to site assembly, the assembly precision height of the construction of well body control sand.
The production of spiral welding filter pipe makes its accuracy of manufacture improve greatly than the accuracy of manufacture of straight weld chimney filter because of its spiral rolls continuity with helical form butt weld welding fabrication.Deviation from circular from significantly reduces, and amount of deflection reduces, deviation from circular from≤0.5mm, axis straightness error≤2mm/5m.It is even relatively to roll, weld back internal stress distribution, and rigidity improves, and anti-extrusion ability strengthens, and is difficult for the bending distortion.
Filter pipe of the present utility model is not subjected to raw material---the restriction of roll bending material and material width, to be convenient to produce and the spiral welding filter pipe of regulating different nominal bores and wall thickness, and the continuity that rolls and weld is fit to large quantities of a large amount of productions.The gap size precision of the spiral welding filter pipe of arched hole, uniformity all are better than straight weld filter pipe of the same type.
Description of drawings
Fig. 1 is the spiral welding filter pipe structural representation that has square hole.
Fig. 2 is round-meshed spiral welding filter pipe structural representation.
Fig. 3 is the spiral welding filter pipe structural representation that has the bridge-type hole.
The specific embodiment
Spiral welding filter pipe, this filter pipe are the metal tube that has the steel of filter bores 2 on the tube wall 1, and the weld seam 3 of its filter pipe is a helical form.Having filter bores on this filter pipe tube wall is square groove, circular hole or bridge-type pass.
Select for use corresponding punching die to be with the material punching in the punching operation respectively in process of production.Thereafter, the punched-tape material of rolling is placed into spiral welding chimney filter volume welding machine group, lead angle according to band material width, caliber size, chimney filter, adjust band material feeding drift angle, regulate roll wheels spacing, regulate guiding, size rolls wheels spacing, carry out spiral pipe crimping and welding fabrication, continuously, produce by batch.During use, be positioned at liquids such as outer oil of pipe and water and enter pipe, the resistance of decorating film matter such as sand outside pipe, is reached the control Grains of sand control, solid sand by filter bores.And, improved its performance because the weld seam of filter pipe shape in the shape of a spiral makes mixture be decomposed on filter pipe the pressure of filter pipe weld seam.
Claims (4)
1. the spiral welding filter pipe is characterized in that this filter pipe is the metal tube that has the steel of filter bores on the tube wall, and the weld seam of its filter pipe is a helical form.
2. spiral welding filter pipe according to claim 1 is characterized in that having filter bores on this filter pipe tube wall is square groove.
3. spiral welding filter pipe according to claim 1 is characterized in that having filter bores on this filter pipe tube wall is circular hole.
4. spiral welding filter pipe according to claim 1 is characterized in that having filter bores on this filter pipe tube wall is the bridge-type pass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620132076 CN200964836Y (en) | 2006-08-31 | 2006-08-31 | Spiral weld filtering tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620132076 CN200964836Y (en) | 2006-08-31 | 2006-08-31 | Spiral weld filtering tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200964836Y true CN200964836Y (en) | 2007-10-24 |
Family
ID=38868850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620132076 Expired - Fee Related CN200964836Y (en) | 2006-08-31 | 2006-08-31 | Spiral weld filtering tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200964836Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107510977A (en) * | 2017-08-31 | 2017-12-26 | 中国地质科学院地质力学研究所 | Hydraulic Fracturing Stress Measurements method private filter |
| CN108941462A (en) * | 2018-07-05 | 2018-12-07 | 苏州广型模具有限公司 | Casting ceramic filter tube with heating compensation |
| CN109570917A (en) * | 2018-11-13 | 2019-04-05 | 李文杨 | A kind of production technology of riffled tube |
| CN112237808A (en) * | 2020-04-08 | 2021-01-19 | 成都易态科技有限公司 | Filter tube and preparation method thereof |
-
2006
- 2006-08-31 CN CN 200620132076 patent/CN200964836Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107510977A (en) * | 2017-08-31 | 2017-12-26 | 中国地质科学院地质力学研究所 | Hydraulic Fracturing Stress Measurements method private filter |
| CN108941462A (en) * | 2018-07-05 | 2018-12-07 | 苏州广型模具有限公司 | Casting ceramic filter tube with heating compensation |
| CN108941462B (en) * | 2018-07-05 | 2020-05-19 | 苏州广型模具有限公司 | Ceramic filter tube with heating compensation for casting |
| CN109570917A (en) * | 2018-11-13 | 2019-04-05 | 李文杨 | A kind of production technology of riffled tube |
| CN112237808A (en) * | 2020-04-08 | 2021-01-19 | 成都易态科技有限公司 | Filter tube and preparation method thereof |
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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: 20071024 Termination date: 20140831 |
|
| EXPY | Termination of patent right or utility model |