CN202031552U - Wing slot-shaped spiral welded mesh pipe - Google Patents
Wing slot-shaped spiral welded mesh pipe Download PDFInfo
- Publication number
- CN202031552U CN202031552U CN2011200966409U CN201120096640U CN202031552U CN 202031552 U CN202031552 U CN 202031552U CN 2011200966409 U CN2011200966409 U CN 2011200966409U CN 201120096640 U CN201120096640 U CN 201120096640U CN 202031552 U CN202031552 U CN 202031552U
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- slot
- pipe
- mesh
- wing slot
- wing
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Abstract
The utility model discloses a wing slot-shaped spiral welded mesh pipe, which is formed by coiling a steel strip material into the shape of a pipe and simultaneously continuously welding the steel strip material into a spiral pipe. Rectangular wing slot meshes are punched on the spiral pipe, and wing slots are formed on two long edges of each mesh or the wing slot is formed on one edge of each mesh. The width of each wing slot is 0.82mm-1.27mm, the length of each wing slot is 4.2mm-5.8mm, the center distance is 7.0mm-15.8mm in the transverse direction and 7.2mm-25.4mm in the longitudinal direction, the rectangular wing slot meshes (2) are arranged in the shape of a rectangle and the opening ratio is 12.2%-18.4%. Compared with a straight slot steel pipe, the wing slot-shaped spiral welded mesh pipe has higher strength and rigidity; and during the high production of an oil-gas well, diversion is performed on hydrocarbons and solid particles, thereby reducing the erosion of an anti-sand pipe and prolonging the production service life of the oil-gas well.
Description
Technical field
The utility model relates to a kind of key element-anti-sandpipe, the specifically outer jointing jacket of anti-sandpipe in the oil gas field completion oil recovery field.
Background technology
At present, the outer jointing jacket of anti-sandpipe system steel sheet carries out blanking by the development size of diameter, is rolled into cylinder after breaking through filter opening, docks the form welding fabrication with vertical masonry joint.There is following technological deficiency in this product structure:
(1) accuracy of manufacture is low, can not satisfy the required precision of anti-sandpipe assembling;
(2) intensity, rigidity are low, and is limited to the protective effect of anti-sandpipe, prevents sandpipe because of well wellbore takes place in installation process by damaged the damage;
(3) lack application life, when oil gas well high yield, damaged by erosion rapidly, the production life-span of oil gas well is reduced.
Summary of the invention
At the defective that the outer jointing jacket of above-mentioned anti-sandpipe exists, the purpose of this utility model is to provide a kind of slot shape spiral welding mesh tube.
The purpose of this utility model is to realize by following measure:
A kind of slot shape spiral welding mesh tube is that continuous welding is connected into helix tube when being rolled into tubulose by the steel band billot, and the helix tube upper punch has the rectangle mesh, and mesh two long limits have slot, Yi Bian or have a slot; Slot width 0.82mm～1.27mm, slot length 4.2mm～12.8mm, the horizontal 7.0mm～15.8mm of center to center distance, vertical 7.2mm～25.4mm, rectangle slot mesh rectangle is arranged, and percent opening is 12.2%～18.4%.
Advantage of the present utility model:
(1) helix tube slot width, length, center to center distance, spread pattern can arbitrary combination according to oil gas well production technology needs;
(2) internal stress of helix tube increases the product safety coefficient less than the vertical masonry joint pipe
(3) replace plate with billot, tolerance dimension is more accurate, thereby makes the thickness of product consistent more;
(4) continual continuous welding makes the product of all lengths all can produce, and is better than the weldering of vertical masonry joint pipe and makes product length limited with plate;
(5) product all is being higher than straight weld aspect the accuracy of diameter tolerance, circularity and straightness accuracy, as: diameter tolerance ± 0.25mm, circularity 0.25mm, straightness accuracy 1.5mm/m;
(6) this patent product has higher intensity, rigidity when identical thickness, then can reduce its thickness when identical intensity, rigidity requirement;
(7) when product uses, oil gas flows from the direction of structural meterials erosion minimum, thereby has prolonged the life-span of anti-sandpipe and improved the output of oil gas;
(8) when oil gas well high yield, this patent product has carried out water conservancy diversion to hydrocarbon and solid particle, thereby has reduced the erosion of anti-sandpipe, has prolonged the production life-span of oil gas well.Aspect size range, have more flexibility, can produce unconventional diameter and tolerance
(9) guarantee sheath external diameter φ 42.16-φ 355.10, thickness δ 0.6 δ 1.5 and other specifications as oil gas well sand control commonly used;
Description of drawings
Fig. 1 is the utility model schematic diagram.
The specific embodiment
As shown in Figure 1, punching out rectangle slot mesh 2 on δ 1.5 stainless steel 304L steel bands, there is slot on 2 liang of long limits of mesh, the likeness in form shutter.Slot width 1.27mm, slot length 5.8mm, the horizontal 15.8mm of center to center distance, vertical 25.4mm, rectangle slot mesh 2 rectangles are arranged, percent opening 18.4% (the area summation of unit length steel band inner filtration through hole and the ratio of unit length steel band area).Behind slot, become guipure.Then guipure is rolled into φ 162.4 tubuloses on the private volume welding machine, continuous welding is connected into helix tube 1 simultaneously.
As required, product can adopt finishing, line cutting processing mode to obtain higher product precision, adopts processing modes such as sandblast, pickling, plating, plastic-blasting can obtain different surface quality requirements, can be at the no orifice ring of two ends welding according to the assembly welding requirement of anti-sandpipe.
Claims (1)
1. slot shape spiral welding mesh tube is that continuous welding is connected into helix tube (1) when being rolled into tubulose by the steel band billot, it is characterized in that helix tube (1) upper punch has rectangle slot mesh (2), and mesh (2) two long limits have slot, Yi Bian or have a slot; Slot width 0.82mm～1.27mm, slot length 4.2mm～5.8mm, the horizontal 7.0mm～15.8mm of center to center distance, vertical 7.2mm～25.4mm, rectangle slot mesh (2) rectangle is arranged, and percent opening is 12.2%～18.4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200966409U CN202031552U (en) | 2011-03-29 | 2011-03-29 | Wing slot-shaped spiral welded mesh pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200966409U CN202031552U (en) | 2011-03-29 | 2011-03-29 | Wing slot-shaped spiral welded mesh pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202031552U true CN202031552U (en) | 2011-11-09 |
Family
ID=44893854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200966409U Expired - Fee Related CN202031552U (en) | 2011-03-29 | 2011-03-29 | Wing slot-shaped spiral welded mesh pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202031552U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033135A (en) * | 2013-03-05 | 2014-09-10 | 兰州正丰石油化工技术装备有限责任公司 | High pressure natural gas well slotting jacket sand prevention pipe |
-
2011
- 2011-03-29 CN CN2011200966409U patent/CN202031552U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033135A (en) * | 2013-03-05 | 2014-09-10 | 兰州正丰石油化工技术装备有限责任公司 | High pressure natural gas well slotting jacket sand prevention pipe |
| CN104033135B (en) * | 2013-03-05 | 2016-12-28 | 兰州正丰石油化工技术装备有限责任公司 | Scaled high-pressure natural gas well slot jacket sand-proof pipe |
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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: 20111109 Termination date: 20160329 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |